| Entries |
| Document | Title | Date |
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| 20080210677 | Vertical-position welding method - A pair of thick steel plates are set up side by side such that an I groove with a narrow gap is formed between the facing edges of the plates, and a welding wire projecting from a welding torch of an arc welding unit with a constant voltage characteristic is inserted into the I groove obliquely from above with respect to the thickness direction of the plates. The welding torch is moved vertically while the distal end of the welding wire is caused to reciprocate inside the I groove in the thickness direction. At this time, the wire feed rate Vf is varied and also the extension L of the welding wire is increased or decreased so as to keep welding current Iw at a target value. Further, the wire feed rate Vf is subjected to incremental/decremental correction according to the moving direction of the torch. | 09-04-2008 |
| 20080230527 | Method of manufacturing an exhaust gas manifold utilizing hybrid MIG welding - A method of manufacturing an exhaust gas manifold, that includes metal exhaust pipes and metal flanges for attaching the pipe openings to corresponding internal combustion engine exhaust ports, employs a hybrid MIG welding process to reduce the occurrences of weld spatter being deposited on the pipe surfaces. Additional benefits are a reduction in applied energy, a resultant reduction in heat being applied to the work pieces, less consumption of weld wire, and improved efficiency of making the weld on the inside surface of the flange adjacent to the pipe opening. The hybrid MIG technique involves moving the head of the weld gun so that its weld wire tip is in contact with the closed path joint formed between an aperture in the flange and the pipe opening. Electrical energy is then applied between the weld wire and the work pieces (flange and pipe) for a relatively short period of time that is sufficient to cause the tip of the weld wire to become a molten drop. When the molten weld material is formed, the application of electrical energy is terminated and the weld wire is retracted or withdrawn away from contact to allow the molten wire drop to enter the joint and form the weld. The weld head is then moved with respect to its current location with respect to the work piece and the weld steps are repeated at a predetermined rate at each point along the joint to complete the weld between the pipe opening and the flange. | 09-25-2008 |
| 20080230528 | METHOD OF ELECTRIC ARC JOINING WITH ALTERNATING CURRENT - The invention relates to a method for arc joining, in particular for arc welding, such that an arc burns between a workpiece and a fusible electrode at a processing site such that an alternating current with at least one positive alternating current phase and at least one negative alternating current phase is applied between the electrode and the workpiece such that the positive alternating current phase is divided into at least one positive pulsed current phase and at least one positive basic current phase and such that the arc is influenced at least temporarily by at least one external magnetic field. According to this invention, the arc is deflected at least temporarily out of the center of the processing site by one or more external magnetic fields during the positive pulsed current phase such that the arc is deflected into a first direction during a positive pulsed current phase and into a second direction which differs from the first direction during the next positive pulsed current phase. | 09-25-2008 |
| 20080257874 | SYNCHRONIZED MULTIPLE DRIVE WIRE FEED WELDING SYSTEM AND METHOD - A welding system, in certain embodiments, includes a synchronization controller configured to override a first nominal calibration of a first wire drive, or a second nominal calibration of a second wire drive, or both, in response to a tension condition or a compression condition of a welding wire feeding between the first and second wire drives. A welding system, in other embodiments, includes a welding wire drive having a motor, a controller, a nominal calibration, and a multi-drive synchronization parameter. The multi-drive synchronization parameter may be configured to control speed, or torque, or both, of multiple drives including the welding wire drive to facilitate synchronization of the multiple drives. | 10-23-2008 |
| 20080272100 | Aluminum deoxidizing welding wire - Provided is a welding method and electrodes (wires) with aluminum as a primary deoxidizer and a basic flux system for joining a workpieces with weld metal of comparable strengths and enhanced toughness. For instance, provided is a welding wire, comprising an aluminum content configured to act as a primary deoxidizer, and an overall composition configured to produce a weld deposit comprising a basic slag over a weld bead, wherein the aluminum content is configured to kill the oxygen in the weld pool, and wherein the oxygen comprises oxygen provided by a shielding gas or produced by heating of welding filler materials. Further provided is a welding method comprising arc welding a workpiece using an electrode having aluminum as a primary deoxidizer under a gas shield to produce a bead of weld deposit and a basic slag over the weld bead. | 11-06-2008 |
| 20080302774 | Method and System for Welding Parts Together - A method for welding weldable parts together, for instance for welding annular objects ( | 12-11-2008 |
| 20080314886 | CTEW process - In CTEW process, U.S. Pat. No. 6,127,643, a process of reducing the residual stress during welding process is described. In this process a material is deposited at the Trailing Edge of Weld (TEW) that absorbs the heat from the solidifying weld metal. This causes the directional solidification effect in the solidifying metal and reduces the heat entering into base metals. In effect microstructure is normalized, and heat affected zone in base metals is reduced. Improvements in the process are made by determining the volume of the solidifying metal, its heat content, and heat transfer area to base metals of the weld. The ratio of heat absorbed at the TEW to heat input to weld is a constant in a specific weld, determining the improvements. | 12-25-2008 |
| 20080314887 | Welding Method and Welding System With Determination of the Position of the Welding Torch - The invention relates to a welding method and a welding system that use a welding torch, the position of which is determined. In order to develop such a welding method and system, with which it is possible to reliably determine the position of the welding torch in three dimensions, it is provided that a signal is emitted by a transmitter, the signal being received by at least one sensor which is integrated in or is associated with the welding torch, the received data readings being sent to an evaluation unit, which determines values relating to the position of the welding torch in three dimensions. | 12-25-2008 |
| 20090001065 | Welding Method and Welding Device - Conventional welding methods have the disadvantage of producing worse welded joints at the beginning of the process than in the later course of the method. The method in question uses an initializing plate on which the welding process is begun and then once a consistent quality can be achieved for the welded joint continues onto the points for repair. | 01-01-2009 |
| 20090020514 | Method of rating a stick electrode - A method of rating the arc maintainability of an electric arc welding stick electrode by creating an arc between the electrode and a workpiece; moving the electrode along the workpiece while maintaining the arc; decreasing either the current or the voltage until a point is reached where the arc is extinguished; determining the open circuit voltage at the point; and, rating the electrode based upon the open circuit voltage point. | 01-22-2009 |
| 20090039065 | Welding wire and welding method - A plurality of metal materials to be a composition, without containing a flux, of a required welded portion are laminated in order to improve characteristics such as toughness of the welded portion and to carry out a stable welding operation. A welding wire enclosing an alkaline metal compound is used between the layers. The welding is carried out in a high-purity inert gas atmosphere. | 02-12-2009 |
| 20090065489 | ARC WELDING - In the control of a semi-automatic or automatic electric arc welding operation, the concentration in the atmosphere remote from the arc of a plurality of fume components is monitored. Control signals are fed or transmitted to at least one process control means which is programmed to adjust a plurality of operational parameters in response to the control signals. | 03-12-2009 |
| 20090065490 | USE OF AN ACTIVIATING FLUX FOR THE TIG WELDING OF METAL PARTS - A method for welding two metal parts, in which:
| 03-12-2009 |
| 20090078688 | SYSTEM AND METHOD OF OPERATING A WELDING GUN - A welding gun includes a handle, an input line, a neck and an acoustic wave trigger. The handle is configured to be grasped by an operator and includes first and second ends. The input line connects to a first end of the handle and is configured to deliver wire and/or gas to the welding gun. The neck is operatively connected to the second end of the handle. The wire and/or gas passes into the neck and out through a nozzle. The acoustic wave trigger is secured to the handle and activates the welding gun when merely touched, as opposed to being squeezed or pressed, by the operator. | 03-26-2009 |
| 20090107970 | METHOD FOR CONTROLLING WELD QUALITY - The present invention relates to a method for controlling weld quality. The method comprises the steps of producing a shield gas curtain around the heat source and producing a shroud gas curtain spaced radially outward from the shield gas curtain, wherein the shroud gas curtain comprises a radially outward component of velocity. The shield gas curtain and the shroud gas curtain are configured to control the resultant mechanical and/or surface properties of the weld. The present invention also relates to a method for substantially confining and concentrating shield gas about the vicinity of a welding site, and a method for substantially recovering and reusing a shield gas in a welding operation. | 04-30-2009 |
| 20090127243 | Method for bonding glassy metals using electric arc - A method for bonding two pieces of a glassy metal includes:(a) partially immersing the two pieces of the glassy metal in a liquid cooling medium; and (b) welding the two pieces of the glassy metal, which are cooled by the cooling medium at the same time, using pulsed electric arc techniques. The cooling medium provides a cooling rate that is sufficient to prevent crystallization in melted portions of the two pieces of the glassy metal from occurring during welding. | 05-21-2009 |
| 20090139970 | METHOD AND ARRANGEMENT FOR GUIDING A MACHINE PART ALONG A DEFINED MOVEMENT PATH OVER A WORKPIECE SURFACE - A machine part is guided along a defined movement path over a workpiece surface. The machine part is held at a defined distance from the workpiece surface during this movement. For that purpose, at least one distance sensor is provided that runs ahead of the machine part with a defined lead. A plurality of distance values indicative of a distance between the distance sensor and the workpiece surface are determined along the movement path. A plurality of control values are determined as a function of the distance values. The defined distance is repeatedly adjusted by means of the control values. In accordance with a first aspect, the distance values are determined at measurement points distributed with a first grid spacing along the movement path, while the control values are determined for actuating points distributed with a second grid spacing along the movement path, the first and the second grid spacings being different. According to a second aspect, the machine part has a linear range of activity on the workpiece surface, and the distance between the machine part and the workpiece surface is controlled by means of a distance control value and an angle control value, which are derived from distance values acquired from at least two distance sensors, which are laterally offset from one another. | 06-04-2009 |
| 20090152253 | ONLINE WELD INSPECTION AND REPAIR METHOD FOR RESISTANCE WELDING AND WELD-BONDING - A method to diagnose weld integrity in a welding process includes monitoring a weld indentation characteristic, comparing the monitored weld indentation characteristic to a threshold weld indentation characteristic, and identifying a discrepant weld when the weld indentation characteristic comparison shows the monitored weld indentation characteristic violates the threshold weld indentation characteristic. | 06-18-2009 |
| 20090173727 | Butt-joint Welding Method - A butt-joint welding method is disclosed, which is capable of improving welding productivity by reducing the number of welding passes by weaving a welding wire in submerged arc welding. The welding method includes arranging two parent metals having 10-35 mm thickness at an interval of 8-20 mm to face each other, attaching a backing material to rear sides of the two parent metals, the rear sides facing each other, so that the backing material seals a space between the parent metals through surface-contact with the rear sides, performing flux cored arc welding or compositely performing the flux cored arc welding and submerged arc welding 1-3 times on an upper layer of the backing material, and welding the two parent metals while weaving a submerged arc welding wire transversely. | 07-09-2009 |
| 20090188903 | Method for welding process consistency - A method is provided for monitoring and controlling the process consistency of an arc welding process. The weld voltage signal is monitored and analyzed to determine the occurrence of the detachment of a weld droplet. The weld droplet detachment is determined via statistical techniques as having occurred at a normal interval following a prior detachment indicating consistent weld process or as a sporadic detachment having occurred at an irregular interval with respect to the prior detachment and indicating inconsistent weld process. The weld process is adjusted by controlling the weld process variables to maximize the predominance of droplet detachment at normal intervals and minimize the occurrence of the sporadic detachments. | 07-30-2009 |
| 20090218329 | METHOD AND SYSTEM FOR AUTOMATED SELECTION OF A SET OF CANDIDATE WELD GUNS INCLUDING ORIENTATIONS OF THE SELECTED GUNS - The disclosure relates to the automatic selection of a set of candidate weld guns and candidate orientations for the weld guns from a library of existing weld guns. Minimum values for weld points and test orientations are calculated. The calculated minimum values are added to the library. As each point is added to the library, the set of weld guns that are candidates for the weld point at the tested orientation may be efficiently retrieved, and a matrix of candidate weld guns and orientations is produced. | 09-03-2009 |
| 20090230109 | EQUIPMENT AND PROCESS FOR APPLYING AN EXTERNAL STRUCTURAL WELD TO PIPING AND SIMILARLY SHAPED PRESSURE BOUNDARY COMPONENTS - An apparatus and/or process for applying a weld overlay to a nozzle or piping spool of complex configuration is disclosed. In an exemplary embodiment, the welding apparatus comprises a mounting assembly having a plurality of magnetic foot pads, a tension support rod attached at one end to one of the magnetic foot pads, an upper attachment pad at the opposite end of the rod, and a bottom attachment pad attached to at least one other magnetic foot pad; a travel guide, the travel guide attached to the upper attachment pad at one end and the bottom attachment pad at the other end; and a head assembly attached to the travel guide, the head assembly having: i) a track ring assembly having an inner ring and an outer ring, ii) at least two opposed weld heads attached to the inner track ring, iii) at least one movable wire feed drive mechanism on the track ring, and iv) a drive mechanism located on the outer ring of the track ring, the drive mechanism adapted to permit rotation of the inner ring and the weld heads around the component to be welded. | 09-17-2009 |
| 20090250447 | CAPILARY ELECTRICAL WELDING PROCESS FOR THE REPAIR OF CARBON STEEL, OF HIGH, MEDIUM AND LOW ALLOY, IN THE CONDITION OF TEMPERED OR NOT; HADFIELD STEEL; CAST IRON; NICKEL AND ITS ALLOYS; METALLIC COVERING AND DISSIMILAR BONDS, TO PRODUCE AN APPROPRIATE MICROSTRUCTURE IN THE WELDED BOND WITHOUT THE NEED OF POST-WELDING THERMAL TREATMENT - A capilary electrical welding process for the repair of carbon steel of high, medium and low alloy, in the condition of tempere dor not; Hadfield steel; cast iron; nickel and its alloys; metallic covering and dissimilar bonds, to produce an appropriate microstructure in the welded bond without the need of post-welding thermal treatment, including, initially, the preparation of the base metal for welding upon the production of appropriate holes ( | 10-08-2009 |
| 20090289044 | ARC WELDING CONTROL METHOD AND ARC WELDING APPARATUS - An arc welding control method carries out weld with a welding current and a welding speed different from those at a steady welding period according to intrinsic resistivity of a weld wire or a base material at a welding start period and a welding end period, so as to obtain a satisfactory welding quality. | 11-26-2009 |
| 20090294428 | METHOD OF CONTROLLING ARC WELDING - A method of controlling arc welding, which method shifting the speed of welding operation continuously and mildly. By so doing, a sharp change in the speed of weld wire supply, which is caused as the result of efforts to try to comply with an abrupt change in operation speed, can be moderated. This helps keeping a welding operation under a stable control. | 12-03-2009 |
| 20090302017 | Method for One-Sided, One Step Joining of a Metal Sheet Stack - A joining operation for a stack of three metal sheets performed using only a single welding step, with access to only one sheet side being required. An inner sheet of the stack has formed therein a pair of bifurcated projections, wherein at least one first apex faces in one direction and at least one second apex faces in the opposite direction. First and second outer metal sheets are assembled with the inner sheet, wherein the first outer sheet abuts the at least one first apex, and the second outer sheet abuts the at least one second apex. A projection welding apparatus welds the sheets, using only access to the first outer sheet superposed the bifurcated projections, wherein a majority of the current flows through the second outer sheet. | 12-10-2009 |
| 20090314756 | WELDING WIRE FOR SUBMERGED ARC WELDING - The copper cladding normally applied to the surfaces of a submerged arc welding wire for preventing weld gun contact tip abrasive wear is replaced with a solid lubricant. This eliminates copper contamination of the weld from the copper cladding while preserving the useful life of the contact tip. | 12-24-2009 |
| 20090314757 | Thick gage welding - A method of thick gage welding joins a first work piece to a second work piece. Abutting edges of the pieces are parallel and separated by a gap G. A displacer is inserted between the work pieces with its bottom surface substantially flush with undersides of the work pieces. The displacer width w is from 0.5G to 0.7G and the displacer height h is about 1.5 times the weld penetration depth. Respective root passes are executed with average current along the bottom of the displacer at the edge of the first work piece and the second work piece. Subsequently, respective root passes are executed at full current, or higher than average current, along the top of the displacer at the edge of the first work piece and the second work piece. The remaining space is filled via additional welding pass(es) to create a completed weld. | 12-24-2009 |
| 20090314758 | Methods of Treating Metal Articles and Articles Made Therefrom - A method for treating a metal article can comprise: fusion welding a cladding onto an article comprising a surface and a compressive case depth processing the cladding. An average compression case depth, as measured from the cladding outer surface, can be greater than the cladding thickness. Also included herein are articles made from this method. | 12-24-2009 |
| 20100012638 | TIG Braze-Welding With Metal Transfer In Drops At A Controlled Frequency - The invention relates to a braze-welding or arc-welding method using a TIG torch equipped with a non-consumable electrode ( | 01-21-2010 |
| 20100051595 | PORTABLE WELDING WIRE FEED AND CONTROL SYSTEM AND METHOD - A welding system is provided that includes a wearable wire feeder. The wearable wire feeder includes a control unit configured to generate a control signal and a wire drive responsive to the control signal. Another welding system is provided that includes a wearable wire feeder that includes a wire drive, a circuit configured to control a welding parameter, and a battery coupled to the circuit, the wire drive, or a combination thereof. In another embodiment, a welding system is provided that includes a wire drive, a control unit configured to control the wire drive and a gas control configured to control flow of a gas. A method is also provided that includes generating a control signal within a wearable wire feeder and driving a welding wire within the wearable wire feeder in response to the control signal. | 03-04-2010 |
| 20100108655 | METHOD AND DEVICE FOR PERMANENTLY CONNECTING COMPONENTS OF HEAT- MELTABLE, METALLIC MATERIALS - The invention relates to a method for permanently interconnecting components from a heat-meltable metal material, using a robot-controlled welding unit for carrying out a hybrid welding process. According to the method, a high performance metal active gas welding process (high performance MAG) is carried out. A component ( | 05-06-2010 |
| 20100176106 | Carriage for Automating Welding, Brazing, Cutting and Surface Treatment Processes - This invention relates to a welding carriage operable to drive across a surface of a work piece having a joint to be welded. The welding carriage comprises a number of wheels, where each wheel is pivotal around an axle and where each wheel is a magnetic wheel; the welding carriage further comprises means for supporting a welding device wherein at least one of the wheels can be flexed inwardly or outwardly so that the welding carriage can travel over curved surfaces. The welding carriage can travel over magnetizable surfaces having any direction, e.g. orientation in space. The welding carriage can carry a laser sensor arrangement arranged to detect the position as well as the direction of a joint to be welded, so that the welding carriage is applicable for performing fully automated welding. | 07-15-2010 |
| 20100176107 | SYSTEM AND METHOD FOR ELECTROSLAG WELDING SPLICED VERTICAL BOX COLUMNS - A system and method for welding spliced vertical box columns with an electroslag welding system. The system includes a welding fixture having opposing, paired and positionally adjustable welding shoes, run-off tabs, and sumps affixed at the junction of box columns to be spliced. A distributed control electroslag welding system, articulating boom, welding torch and consumable guide tube oscillator feed provide molten flux within the shoes filling from the sump to the run-off tab. | 07-15-2010 |
| 20100176108 | WELDING METHOD FOR T-JOINT - In a plate assembling step, a gap ( | 07-15-2010 |
| 20100200554 | WELDING EQUIPMENT AND WELDING METHOD - Welding equipment includes a torch for irradiating a laser beam, wire feeding means for feeding a filler wire, and tracking means for controlling the moving tracks of the torch and the wire feeding means so as to make the moving tracks follow a welding line. The tracking means has a contactor provided so as to be advanceable/retractable for making contact with a joint object resiliently. The torch and the wire feeding means are moved so as to follow the welding line by touching the contactor of the tracking means resiliently to the joint object while feeding the filler wire to a welding portion and irradiating that portion with the laser beam, thereby joining the joint objects. | 08-12-2010 |
| 20100206861 | PRESSURE WELDING MACHINE AND PRESSURE WELDING METHOD - A pressure welding method is provided and a pressure welding machine ( | 08-19-2010 |
| 20100219172 | Process For Reducing The Loss Of Backing Gas When Welding Pipe - The present invention provides for a process for welding pipes together utilizing a cover device that has a gutter-shaped portion that is arranged on the plan of joint of the pipes to be welded together. By arranging the cover device such that the gutter-shaped portion faces and covers a portion of the plan of joint formed by the abutment of the ends of the pipes to be welded together, it is possible to eliminate or minimize the waste of gas that is utilized to create an internal gas backing. | 09-02-2010 |
| 20100224609 | COLD METAL TRANSFER GAS METAL ARC WELDING APPARATUS AND METHOD OF OPERATION - A cold metal transfer (CMT) contact tip has a substantially copper-free contact surface defining a wire passage. The CMT contact tip is used with a CMT welding apparatus having a weld wire and a wire feeder for feeding and oscillating the weld wire forward and backward through the wire passage where the weld wire shares a concentric axis with the wire passage. | 09-09-2010 |
| 20100224610 | SYSTEM FOR TRACKING AND ANALYZING WELDING ACTIVITY - A system and a method for tracking and analyzing welding activity. Dynamic spatial properties of a welding tool are sensed during a welding process producing a weld. The sensed dynamic spatial properties are tracked over time and the tracked dynamic spatial properties are captured as tracked data during the welding process. The tracked data is analyzed to determine performance characteristics of a welder performing the welding process and quality characteristics of a weld produced by the welding process. The performance characteristics and the quality characteristics may be subsequently reviewed. | 09-09-2010 |
| 20110006047 | METHOD AND SYSTEM FOR MONITORING AND CHARACTERIZING THE CREATION OF A MANUAL WELD - A method and system for monitoring and characterizing the creation of a manual weld is disclosed. The system generally includes a welding gun having a target, an imaging system, a processor, and a display. During the creation of a manual weld, the imaging system captures a plurality of images of the target. The processor analyzes the plurality of images of the target to calculate a plurality of position and orientation characteristics associated with the manipulation of the welding gun during the welding process. The display illustrates at least one of the plurality of position and orientation characteristics to provide feedback regarding the creation of the weld. In one embodiment, the disclosed method and system may be utilized as a tool for training welders. | 01-13-2011 |
| 20110062132 | Automated Assembly Method for a Motor Vehicle - A method of automated assembly for a motor vehicle is disclosed. The method includes a step of automatically determining weld characteristics according to weld location information. The method further includes a step of generating an automated weld program according to the weld characteristics and a step of controlling a welding robot according to the automated weld program. | 03-17-2011 |
| 20110073579 | METHOD OF MANUFACTURING A STRUCTURE AT A SURFACE OF A METAL WORK PIECE - The invention relates to a method of manufacturing a structure ( | 03-31-2011 |
| 20110073580 | METHOD TO MONITOR THE LIFE OF THE CONTACT TIP IN ROBOTIC OR AUTOMATIC GMAW - A method of monitoring contact tip useful life in a welding torch includes measuring at least one of welding current (I) and welding voltage (V) of the contact tip mounted in the welding torch. Deterioration of the contact tip is quantified based on one or both of (i) a decrease of the welding current and increase of a standard deviation of the welding current (sd_I), and (ii) an increase of the welding voltage. Deterioration of the contact tip may be quantified by calculating an index of contact tip life (ITL) based on the welding current and standard deviation of the welding current and/or by calculating a reference index of contact tip life (ITL_v) based on the welding voltage. | 03-31-2011 |
| 20110114615 | SYSTEMS, METHODS, AND APPARATUSES FOR MONITORING WELD QUALITY - An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications. | 05-19-2011 |
| 20110114616 | WELDING SYSTEM WITH LOCKOUT MECHANISM - Embodiments of a welding system including a controller adapted to implement a lockout mechanism are provided. The controller may be adapted to selectively activate a learn mode and a use mode of a component of the welding system. When the learn mode is activated, the controller receives an allowable data set and stores the allowable data set to memory. When the use mode is activated, the controller receives an operational data set, references the allowable data set to check if the operational data set is allowable, logs the operational data set and enables the component of the welding system to operate when the operational data set is allowable, and disables the component of the welding system when the operational data set is not allowable. | 05-19-2011 |
| 20110155711 | ADAPTIVE CONTROL OF ARC WELDING PARAMETERS - A laser sensor to scan the weld joint either before welding begins as a pre-weld scanning operation or in real time during welding to provide adaptive control of the arc welding parameters. A “line” type laser sensor device projects a laser line within a fixed operating window. The line laser produces a reflective position of anything that the laser line “sees” within the operating window. By triangulation, the exact distance an object is from the laser can be measured at any point along the “line” of the laser. Certain parts of the weld bevel are targeted for measurement. The measurements are stored in an electronic storage medium and a data processor. The stored measurements and data processor are used in conjunction with automated welding equipment to adjust the welding parameters as required. Because the exact joint/weld geometry is then known for every portion of the weld, the welding equipment can then respond or “adapt” to variations in the weld joint between the work pieces. | 06-30-2011 |
| 20110155712 | PIPE ELEMENT WITH A TRIMMED EDGE FOR WELDING ONTO A CARRIER - The present disclosure relates to a pipe element with a trimmed edge for welding onto a carrier, wherein the trimmed edge is cut from a base tube so that the pipe element can be arranged on the surface of the carrier and welded to it along the trimmed edge, wherein the trimmed edge has a first cam with which the pipe element can be placed on the surface of the carrier. It is further provided that the trimmed edge has at least one second cam with which it can be placed on the surface of the pipe element, so that an air gap remains between the surface of the carrier and the trimmed edge in a region lying between the first cam and the second cam. | 06-30-2011 |
| 20110204035 | DEVICE AND METHOD FOR CONTACTING A WELDING ROD AND CONTACT SHEEL - The invention relates to a device and a method for contacting a welding wire ( | 08-25-2011 |
| 20110210110 | Method and Apparatus for Automated Welding - A method of welding plate joints during construction or repair of a structure. The method includes the steps of: (a) positioning a series of plates forming a structure component next to one another to form a series of joints for welding; (b) positioning a welding system on or adjacent to the series of plates, the welding system including a platform with an articulating welding arm positioned thereon, wherein the articulating arm comprises a welding head and a joint sensor; (c) directing the articulating arm with a controller to detect a first joint with the joint sensor; (d) beginning to weld the first joint; (e) adjusting the position of the welding head to track the weld joint based on data from the joint sensor; and (f) repositioning the articulating arm and positioning the welding head adjacent a second weld joint to begin welding the second joint. | 09-01-2011 |
| 20110220630 | WELDING WIRE FEEDER WITH MULTIMOTOR STANDARD - A welding wire feeder having a multiple motor drive standard is provided. The welding wire feeder may be coupled to one of a plurality of electric motor assemblies, and a user may select the electric motor assembly to be used from a menu of electric motor assemblies on a user interface or may enter customized configuration parameters for the electric motor assembly on the user interface. The control circuitry of the welding wire feeder may then be properly configured backed upon which electric motor assembly is selected or based upon the customized configuration parameters entered. | 09-15-2011 |
| 20110253691 | STAINLESS STEEL FLUX-CORED WELDING WIRE FOR WELDING OF ZINC-COATED STEEL SHEET AND ARC WELDING METHOD OF ZINC-COATED STEEL SHEET USING SAME - A stainless steel flux-cored welding wire for zinc-coated steel sheet welding use which gives a weld zone where no zinc embrittlement cracking occurs and the corrosion resistance and ductility are excellent and which is good in weld work efficiency and a welding method using the same, the welding wire characterized in that total amounts of elements which are included as metals or alloy compositions in the sheath and flux are, by mass % with respect to a total mass of the welding wire, C: 0.01 to 0.05%, Si: 0.1 to 1.5%, Mn: 0.5 to 3.0%, Ni: 7.0 to 10.0%, and Cr: 26.0 to 30.0%, an F value is 30 to 50 in range, further, the wire contains, as slag forming agents, in the flux, by mass % with respect to the total mass of the wire, TiO | 10-20-2011 |
| 20110259863 | METHOD OF WELDING COIL END OF STATOR OF ELECTRIC ROTATING MACHINE - A method of welding a plurality of conductors to form a winding extending through an annular stator core. The conductors are inserted into slots formed in the stator core to have coil ends extending outside an end surface of the stator core. A plurality of pairs of the coil ends are arranged in diagonal arrays extending diagonally with respect to a radial direction of the stator core. The method inserts a first electrode into a gap between adjacent two of the diagonal arrays and then brings a second electrode close to one of the adjacent two of the diagonal arrays to arc-weld, the pairs of the coil ends. This welding method enables the welding of the coil ends arrayed in the above layout efficiently while keeping the electrical insulation between the pairs of the coil ends. | 10-27-2011 |
| 20110266268 | IN SITU ADJUSTMENT OF IMPLANTABLE COMPONENTS CONNECTED BY AN IMPLANTABLE ELECTRICAL CONNECTOR - A method for in situ electrical connection of implantable components. A first implantable component is electrically coupled to a first connector half, and a second implantable component is electrically coupled to a second connector half. The method comprises mating the first and second connector halves with one another; and forming at least one readily severable unitary contact between the first and second connector halves. | 11-03-2011 |
| 20110278274 | ARC WELDING TORCH HAVING A VARIABLE ELECTRODE RECEIVER - An arc welding torch having a variable electrode receiving aperture including a number of discrete wedges guided within a conical interior surface of a housing to enable the use of electrodes of various diameters without changing components of the torch. An adjusting collar engages the wedges and forms an adjustable opening for an electrode to be inserted therein. Rotation of a tailpiece of the torch handle adjusts the position of the wedges and secures the electrode in position. | 11-17-2011 |
| 20110278275 | ARC WELDING METHOD AND ARC WELDING APPARATUS - An arc welding apparatus welds a bracket held by a welding head to a pipe by arc welding. A hollow tubular member is provided in the bracket, which tubular member is formed in a hollow conical shape or funnel, so that the diameter thereof increases from the bracket to an open mouth therein. The open mouth of the tubular member of the bracket held by the welding head is pulled up from a condition of being in contact with the pipe, an electric arc is generated between the mouth of the tubular member and the pipe to effect melting, and the open mouth is pressed against the pipe, whereupon the bracket is welded to the pipe. | 11-17-2011 |
| 20110290772 | METHOD FOR ARC WELDING WITH A DUAL GAS FLOW, WITH A CENTRAL FLOW CONTAINING ARGON AND HYDROGEN, AND WITH A SHEATH FLOW INCLUDING ARGON AND EITHER CARBON DIOXIDE OR OXYGEN - The invention relates to an arc welding method that implements an arc welding torch provided with an electrode, in which a central gas flow is supplied so as to contact the electrode and an annular gas flow is supplied on the periphery of said first gas flow. The central gas flow contains only argon and hydrogen (H2), the hydrogen content being 2 to 8 vol %. The sheath gas flow only contains argon and 1.8 to 3 vol % of carbon dioxide (CO2) or 0.9 to 1.5 vol % of oxygen (O2). The method is used for welding parts made of steel, in particular stainless steel or carbon steel, as well as steel coated with zinc or aluminium or any other material for preventing the corrosion of said steel. | 12-01-2011 |
| 20110297656 | WELDING CONTROL - A welding device applies weld material between two work pieces such that the work pieces are connected mechanically with one another. The welding device includes a welding head and a central element. The welding head performs a welding action during transport thereof along an operating direction between the work pieces. Two primary sensor members are arranged on the central element upstream of the welding head relative to the operating direction. The sensor members register geometric properties of a spacing between the work pieces in which spacing the weld material is to be applied. Each sensor member is configured to maintain contact with a respective wall of the two work pieces adjoining the spacing while allowing variation of lateral distances between the central element and the adjoining wall. This is accomplished by the sensor members being pivotally attached to the central element via at least one pivoting axis oriented essentially perpendicular to the operating direction. | 12-08-2011 |
| 20120031886 | OFFLINE TEACHING METHOD - A three-dimensional rectangular coordinate system is set in which the direction of a weld line is the Y direction, a direction perpendicular to a surface of a material to be welded is the Z direction, and a direction perpendicular to the Y direction and the Z direction is the X direction. A coordinate system A of X | 02-09-2012 |
| 20120043307 | ARC WELDING METHOD AND APPARATUS FOR ARC WELDING - An electric arc welding method is provided, wherein an electrode assembly comprises at least two fusible continuous electrodes acting on a workpiece for generating a weld pool via electric arcs, wherein the at least two electrodes are arranged in sequential order relative to a welding direction and laterally separated relative to each other, wherein steps are performed of monitoring at least one stability parameter (Stab_par) for each electrode of the electrode assembly; determining if one electrode of the electrode assembly violates a stability criterion (Crit); separating at least temporarily the one electrode violating the stability criterion (Crit) from one or more adjacent electrodes when a violation of the stability criterion (Crit) of the one electrode is detected. | 02-23-2012 |
| 20120067859 | Method and Apparatus For Welding With Reduced Spatter - A method and apparatus for reducing spatter is disclosed. A welding gun, which can be an integrated part of a welding system, includes a device, such as a solenoid or motor and roller, to slow, stop or reverse the wire. The device is activated in response to feedback indicative of a short, a short that is about to form, or the imminent clearing of a short. The detection of the short, forming of a short, or clearing of a short is in response to feedback based on current and/or voltage. Output current can also be reduced. | 03-22-2012 |
| 20120103956 | WEB CONFIGURATION SYSTEM FOR CUSTOMIZING WELDING SYSTEMS - Embodiments of the present disclosure are also directed to a web-configuration system that includes at least one processor and one or more tangible, machine-readable media at least collectively including or storing instructions executable by the at least one processor. The instructions include a module configured to limit configuration options for a welding system based on user selection of a power source for the welding system, a module configured to calculate a weld cable size for the welding system based on the user selection of the power source and user selection of an input voltage, a module configured to assign weld cable characteristics based on the weld cable size and a user selected cable length, and a module configured to assemble a welding system order based at least on the user selection of the power source and the weld cable characteristics. | 05-03-2012 |
| 20120111845 | FUME EXTRACTION SYSTEM WITH AUTOMATIC FUME HOOD POSITIONING - The fume extraction system ( | 05-10-2012 |
| 20120152925 | WELDING WIRE FEEDER WITH IMPROVED WIRE GUIDE - A wire guide for use in a welding wire feeder is provided. The wire guide may consist of a pair of vertical pins mounted to a wire drive assembly to form a slit through which welding wire is guided toward a set of drive rolls. Another embodiment may consist of a generally conical piece with oblong entrance and exit ends mounted to the wire drive assembly. | 06-21-2012 |
| 20120175357 | ENERGY CONVERSION METHOD AND APPARATUS, AND WELDING DEVICE - The invention relates to a method and an apparatus for converting the energy of an energy storage ( | 07-12-2012 |
| 20120193335 | METHOD AND DEVICE FOR MANUFACTURING TITANIUM OBJECTS - This invention relates to a method and reactor of manufacturing an object by solid freeform fabrication, especially an object made of titanium or titanium alloys. The reactor of production of an object of a weldable material by solid freeform fabrication comprises a reactor chamber which is closed to the ambient atmosphere, wherein the reactor is given a design such that all adjacent wall elements forming the reactor chamber are joined with an obtuse angle (larger than 90°), the actuator located below the reactor chamber is given a design such that the actuator protrudes into the reactor chamber through an opening at the bottom of the reactor chamber holding the support substrate inside the reactor chamber, the opening is sealed by at least one elastic gas impermeable membrane which is gas tight attached to the reactor wall at the opening and to the actuator, the actuator located outside the reactor chamber is given a design such that the actuator protrudes into the reactor chamber through an opening at the side of the reactor chamber holding the high energy plasma transferred arc welding torch with wire feeder of the weldable material inside the reactor chamber, the opening is sealed by the at least one elastic gas impermeable membrane which is gas tight attached to the reactor wall at the opening and to the actuator, and the reactor is equipped with at least one closable gas inlet located at the lowest level of the reactor chamber and at least one closable gas outlet located at the highest level of the reactor chamber. | 08-02-2012 |
| 20120199567 | ARC WELDING CONTROL METHOD - In a method for controlling pulse arc welding where an arc is created between a wire and a base material, a pulse waveform different from the pulse waveform for steady-state welding is outputted when a predetermined time has passed since short-circuit welding control was started at arc start, and after a sufficiently large melt pool is formed, the pulse waveform for the steady-state welding is outputted. This reduces the generation of spatters after an arc is created and until the arc is stabilized. | 08-09-2012 |
| 20120205360 | Computer Aided Beam Fabrication Machine - A beam working apparatus, includes opposed vice assemblies for holding and rotating a beam about a long axis thereof and a number of gantries that are arranged for translational motion along the beam. At least one tool head mount is provided fast with each of the gantries for a tool for working upon the beam. A number of motors are provided to selectively rotate the vice assemblies and move the gantries in order that the apparatus can be operated by a computerized control system. | 08-16-2012 |
| 20120234813 | METHOD FOR PROVIDING REAL-TIME MONITORING OF CONTACT TIP PERFORMANCE - A method for tracking contact tip deterioration in real time in accordance with the present invention includes establishing a reference that relates welding parameters during welding production to contact tip life; monitoring welding parameters of a contact tip during use; comparing the monitored welding parameters to the reference; providing real-time feedback to an operator; and predicting contact tip failure from the comparison. | 09-20-2012 |
| 20120248082 | LARGE PANEL ASSEMBLY WELDING SYSTEM AND METHOD - A system for welding large panel assemblies is provided. The system includes at least one transport track extending along an area in which a panel to be welded will be placed. A movable support structure is mounted to move along the transport track. A welding robot is supported by the support structure and configured to move to welding locations where welds are to be completed between a part and the panel. A pressing component is supported by the support structure and configured to press the part toward the panel. A welder is coupled to the welding robot for executing welds at the welding locations, and a control system is configured to command operation of the support structure, the pressing component, the robot, and the welder to execute the welds. | 10-04-2012 |
| 20120255940 | ARC WELDING METHOD AND ARC WELDING DEVICE - A method for arc welding can control the increase slopes of the short-circuit current and the inflection point of the increase slopes in the welding start period to be smaller than in the steady-state welding period. Thus, the increase slopes of the short-circuit current and the inflection point are made different between the welding start period and the steady-state welding period, thereby reducing sputtering in the welding start period. | 10-11-2012 |
| 20120298645 | METHOD AND ASSEMBLY FOR THE ELECTRICALLY CONDUCTIVE CONNECTION OF WIRES - A method and assembly for the electrically conductive connection of a bundle of wires having an insulation, wherein the insulation is at least partially removed by means of ultrasonic effects. In order to ensure high mechanical strength in a good electrically conductive connection, according to the invention the insulation of the wires is removed in a first step by means of plastic-ultrasonic welding and the wires are bonded in a second step by means of metal-ultrasonic welding or resistance welding. | 11-29-2012 |
| 20120298646 | METHOD AND APPARATUS FOR INSTALLING A REFRACTORY MATERIAL TO A SURFACE - A method and apparatus for installing a refractory material to a surface by inserting a nozzle and a neck of a welding gun through a channel in a refractory material, positioning the refractory material on the surface using the welding gun, firmly pushing the welding gun into the channel of the refractory material until the nozzle of the welding gun, an anchor embedded in the refractory material and the surface are in contact, welding the anchor of the refractory material to the surface with the welding gun, and removing the nozzle and the neck of the welding gun from the channel in the refractory material. | 11-29-2012 |
| 20120312795 | TWO-ELECTRODE WELDING METHOD - In a two-electrode welding method of the present invention, a leading electrode is used to perform gas-shielded arc welding and a trailing electrode is an energized filler. A trailing electrode wire protrudes from a guide lead or guide tip and is energized from an energizing tip. The distance between a welding surface and the energizing tip is 100 mm or more and 1500 mm or less. The distance between electrodes is 10 mm or less. The electric current of the leading electrode is 250 A or more, and the electric current of the trailing electrode is 10 A or more and 50% or less of the electric current of the leading electrode. The feeding speed of the trailing electrode wire is 20% or more and 50% or less of the feeding speed of the leading electrode wire. | 12-13-2012 |
| 20130001210 | METAL CORED WELDING METHOD AND SYSTEM - Methods and systems are disclosed for utilizing metal cored welding wire electrodes with forced movement of the electrode and arc. The electrode may be moved by a motion control assembly in a welding torch. The arc is established only between the sheath of the metal cored welding wire and the workpiece (or weld puddle), providing a unique transfer mode for enhanced deposition, travel speeds, and other weld and process characteristics. | 01-03-2013 |
| 20130068744 | ARC WELDING CONTROL METHOD AND ARC WELDING APPARATUS - In an arc welding control method of repeating a short circuit and an arc to perform welding, control is carried out to conduct a welding current having a first polarity for a short circuit period, and a first commutation to commutate the welding current from the first polarity to be a polarity of the welding current for the short circuit period to a second polarity to be opposite to the first polarity is carried out for an arc period subsequent to the short circuit period. Furthermore, control is performed to carry out a second commutation to commutate the welding current from the second polarity to the first polarity for the arc period in which the first commutation is executed. Consequently, it is possible to reduce an energy input amount to a base metal, thereby suppressing burn-through in welding of a thin plate. | 03-21-2013 |
| 20130075380 | WELDING SYSTEM AND METHOD UTILIZING CLOUD COMPUTING AND DATA STORAGE - A welding system or an enterprise using welding systems can communicate with cloud-based resources for the provision of services and products to facilitate the welding operations. The communications may be via wired or wireless media, and may be direct, or through other components, such as enterprise networks, peripheral devices, and so forth. The cloud-based resources may provide for storage of data, particularly welding data, processing of data, welding protocols, specifications and processes, financial transactions for the purchase, licensing or use of welding-related products and services, welding training, and so forth. | 03-28-2013 |
| 20130087543 | APPARATUS AND METHOD FOR POST WELD LASER RELEASE OF GAS BUILD UP IN A GMAW WELD - A system and method is provided where a work piece is welded at high speeds with minimal porosity and spatter. In embodiments, the work piece is welded with an arc welding process to create a weld puddle and the weld puddle is irradiated by a energy beam downstream of the arc welding operation, such that high welding speeds are attained. The high energy heat source is positioned downstream of the welding operation to input energy into the weld puddle to change its shape or characteristics to optimize bead shape and/or bead quality. | 04-11-2013 |
| 20130119040 | SYSTEM AND METHOD FOR ADAPTIVE FILL WELDING USING IMAGE CAPTURE - A computer obtains a first image including a first portion of a first edge and a first portion of a second edge, wherein distance between the first portion of the first edge and the first portion of the second edge forms a first width of a seam between the first edge and the second edge. The computer obtains a second image including a second portion of the first edge and a second portion of the second edge, wherein distance between the second portion of the first edge and the second portion of the second edge forms a second width of the seam between the first edge and the second edge. The computer determines a parameter for a welding torch to weld a joint for joining the first edge and the second edge along the seam based at least in part on the first image and the second image. | 05-16-2013 |
| 20130126501 | ARC WELDING METHOD, ARC WELDING DEVICE AND ARC WELDING MAGNETIC FIELD STRENGTH ADJUSTMENT METHOD - A magnetic field is generated in a workpiece in a direction orthogonal to the joining direction, and as a result of the Lorentz force resulting from the magnetic field and the current between the plasma torch and the workpiece, the front tip side of the arc is bent forward in the direction of advancement of the plasma torch and welding is performed. The magnetic field strength of the welded part is adjusted by changing the relative positions of the plasma torch and a butting portion of the workpiece. | 05-23-2013 |
| 20130126502 | DEVICE AND METHOD FOR APPLYING ELECTRIC DISCHARGE ON OPTICAL FIBER - A device for applying electric discharge on an optical fiber by electrodes is comprised of a first driving mechanism for controllably driving the electrodes in a first direction perpendicular to an axial direction of the optical fiber; and a second driving mechanism for controllably and synchronously driving the electrodes in a second direction perpendicular to the axial direction of the optical fiber but not identical to the first direction. | 05-23-2013 |
| 20130126503 | Portable Weld Cooling Systems - Portable weld cooling systems include a plurality of weld cooling instruments operable to combine to provide cool air to a weld area created by a weld fusion machine, and a portable cabinet comprising a transportation section and a storage section, the transportation section operable to facilitate the movement of the portable cabinet and the storage section being configured to store the plurality of weld cooling instruments when the portable cabinet is moved, wherein one or more of the plurality of weld cooling instruments may be removed from the storage section when combined to provide cool air. | 05-23-2013 |
| 20130175249 | METHOD AND APPARATUS FOR BALANCING AN ELECTRODE ARM OF A WELDING DEVICE WITH DETERMINATION OF DIFFERENTIAL BALANCE PRESSURE - A method for balancing an electrode arm ( | 07-11-2013 |
| 20130180970 | RESISTANCE WELDING A POROUS METAL LAYER TO A METAL SUBSTRATE - An apparatus and method are provided for manufacturing an orthopedic prosthesis by resistance welding a porous metal layer of the orthopedic prosthesis onto an underlying metal substrate of the orthopedic prosthesis. The resistance welding process involves directing an electrical current through the porous layer and the substrate, which dissipates as heat to cause softening and/or melting of the materials, especially along the interface between the porous layer and the substrate. The softened and/or melted materials undergo metallurgical bonding at points of contact between the porous layer and the substrate to fixedly secure the porous layer onto the substrate. | 07-18-2013 |
| 20130186873 | Electro-Hydraulic Rivet and Method of Riveting and Welding Parts - A method of riveting two metal parts through a hole with an electro-hydraulic riveting tool. The electro-hydraulic riveting tool includes a tube that is inserted in the hole and an electrode that is inserted within the tube. A liquid is contained within the tube and the electrode is immersed in the liquid. A stored charge is discharged through the electrode to create a shockwave within the fluid that forms the tube into a rivet structure and creates solid state weld between the rivet flanges and the parts that are joined. | 07-25-2013 |
| 20130228560 | IN-PROCESS WELD GEOMETRY METHODS & SYSTEMS - In-process weld geometry methods and systems are discussed, enabled, and provided. Some embodiments include in-process welding devices to compensate for error associated with detected weld penetration depth. Exemplary devices can generally include an ultrasonic energy source, an ultrasonic receiving sensor, and a controller. The ultrasonic energy source can be disposed to generate ultrasonic energy through a first specimen being welded to a second specimen. A weld seam can be used to join the first specimen to the second specimen. The ultrasonic sensor can be disposed on an opposite side of the weld seam from the ultrasonic energy source, and configured to detect ultrasonic energy propagated from the first specimen side of the weld seam to the second specimen side of the weld seam. The controller can be disposed to receive data from the ultrasonic sensor, configured to determine time of flight signal data corresponding to arrival of the ultrasonic energy detected by the ultrasonic sensor, and configured to compare the determined time of flight signal data to a model to compute error associated with the determined time of flight signal data due to a dynamic welding environment. Other aspects, embodiments, and features are claimed and described. | 09-05-2013 |
| 20130270244 | SYSTEMS AND METHODS FOR TUBULAR WELDING WIRE - A tubular welding wire includes a granular core and a metal sheath encircling the granular core. Furthermore, the metal sheath includes at least approximately 0.3% manganese by weight and at least approximately 0.05% silicon by weight. | 10-17-2013 |
| 20130270245 | Method and Apparatus For Welding - A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode. | 10-17-2013 |
| 20130277346 | CATALYST SUBSTRATES AND METHOD OF FORMING USING CAPACATIVE DISCHARGE WELDING - A fixture for welding a substrate using capacitive discharge welding includes a support plate having a receiving portion. A back plate that is generally planar is positioned adjacent a rear wall of the support plate and perpendicular thereto, wherein the support plate and back plate are made from a non-conductive material. Another fixture for welding a substrate includes a pair of support plates having a cut-out forming a receiving portion. A back plate that is generally planar is positioned adjacent a rear wall of one of the support plates, wherein the support plate and back plate are made from a non-conductive material. A method of welding a substrate using capacitive discharge welding is also provided. | 10-24-2013 |
| 20130319988 | SYSTEM AND METHOD FOR PAIRING WELDING DEVICES - Systems and methods for pairing welding devices in a welding system. In one method, the method includes sending a pairing request from a first welding device to a second welding device. The method also includes receiving, at the first welding device, a response to the pairing request from the second welding device. The second welding device is physically connected to the first welding device. The pairing request or the response includes a change in welding power, welding consumables, or any combination thereof The method includes pairing the first welding device and the second welding device after the first welding device receives the response to the pairing request from the second welding device. | 12-05-2013 |
| 20140021185 | METHOD AND SYSTEM FOR THE PRODUCTION OF REINFORCING DOWEL BASKETS FOR CONTRACTING-EXPANDING JOINTS - Systems and methods for producing dowel baskets from dowel side frames and transverse dowel rods. The dowel side frames are introduced at a top location of the production system, where there is initially introduced a first dowel rod and subsequently, with successive stepwise advancements, the remaining dowel rods are introduced. The dowel side frames with the dowel rods advance on guides that may rotate the dowel side frames relative to the axes of the longitudinal wires so as to impart a desired inclination angle φ relative to the rods. In following, with continuous stepwise advancements, the dowel rods are alternately welded, each to one of the opposed dowel side frames. Transverse wires are welded on the longitudinal wires to impart rigidity to the dowel basket. Subsequently, mass-produced dowel baskets may be stacked in groups. | 01-23-2014 |
| 20140042140 | WELDING PROCESS FOR REPAIR OF THICK SECTIONS - A double-sided tribrid welding technique and apparatus for root pass welding of narrow groove welds. The welding technique utilizes three welding devices. A welding apparatus on a backside of the weld joint may strike an arc on the backside of the weld joint; a welding apparatus on a narrow groove side of the weld may strike an arc within the narrow groove weld joint, while the remaining welding apparatus is a laser that can help establish a keyhole as a common pool of molten metal at the root without burning through the root. Once the arcs are struck substantially simultaneously and the laser is energized, the welding heads move simultaneously, the arc welders assisting in maintaining pre-heat temperature, while minimizing distortion and cracking. Adjusting arc weld parameters provides deformation on completion of the root pass so as to compensate for distortion due to metal shrinkage in subsequent passes. | 02-13-2014 |
| 20140048524 | HOT-WIRE CONSUMABLE WITH EMBEDDED ID TAG - A system and method for using filler wire with embedded information is provided. The filler wire includes a sheath comprising a first filler material and a core that is defined by the sheath. The core includes a second filler material and at least one integrated circuit module. The at least one integrated circuit module includes at least information about the filler wire. In some embodiments, the at least one integrated circuit module is configured for at least one of read operations and write operations that are done using a remote device. | 02-20-2014 |
| 20140061174 | HEATING ROD AND METHOD FOR PRODUCTION THEREOF - This disclosure relates to a method for producing a heating rod for a vehicle heating apparatus, said method comprising the following steps: arranging at least one PTC element and at least one contact element in a tube, which is formed from sheet metal and is open along a longitudinal side; welding portions of the sheet metal that bear against one another by means of a weld seam running in the longitudinal direction of the tube. This disclosure also relates to such a heating rod. | 03-06-2014 |
| 20140131334 | Gas tungsten arc welding using arcing-wire - In gas tungsten arc welding (GTAW), the achievable deposition rate of the filler wire is coupled with the arc energy and the mass of the molten metal in the weld pool. In this invention, a side arc is added into the GTA (gas tungsten arc) between the wire and the same tungsten that establishes the GTA with the work-piece. While its anode provides a GMAW (gas metal arc welding) melting mechanism to completely melt the wire at high speeds, the undesirable dependence of deposition rate on the weld pool mass is also eliminated. As a result, the deposition rate is increased and the ability to provide desirable deposition rate and base metal melting/penetration freely without coupling is established for the GTAW. | 05-15-2014 |
| 20140158672 | METHOD OF WELDING A WELD STUD TO A WORKPIECE AND OF CHECKING THE STRENGTH OF THE WELDED JOINT - A method of welding a weld stud to a workpiece and of checking the strength of the welded joint includes the steps of providing a tool, a workpiece, and a weld stud, the weld stud including a shank and a polygonal shaped head; welding the weld stud onto the workpiece; applying the tool to the polygonal shaped head section of the stud; applying a predetermined test torque to the weld stud with the tool; and checking the welded joint for satisfactory acceptance of the test torque. | 06-12-2014 |
| 20140190951 | WELD DAMMING AND BACKING - The present disclosure is directed to methods for damming and backing welds. In one embodiment, a method of welding a workpiece is provided in which the workpiece includes a first section, a second section, and a weld groove disposed therebetween. Opposing edges of the first and second sections are positioned adjacent to each other and at least partially form a bottom of the weld groove. A silicon dioxide weld dam is abutted against a terminal end of the workpiece relative to a weld direction. The weld dam is positioned at a weld joint termination point to prevent molten metal from flowing through a terminal end opening of the groove at the weld joint termination point. The first and second sections are welded together along opposing edges in the weld direction up to the weld joint termination point. Finally, the dam is removed, exposing the terminal end of the workpiece. | 07-10-2014 |
| 20140197148 | STRUCTURE AND METHOD OF BONDING COPPER AND ALUMINUM - A bonded structure of aluminum and copper is formed by bonding a copper workpiece and an aluminum workpiece together along a joint via an arc welding process. The copper workpiece has a first coating, having a lower melting point than copper, applied to at least a portion of it. The first coating allows the copper workpiece to be wetted and brazed, while the aluminum workpiece is melted and fused along the joint. The arc welding process involves the cyclic alternating of a first stage, in which an electric current is supplied to a welding wire as it is moved toward the workpieces, and a second stage, in which the electric current is reduced and the welding wire is moved away from the workpieces, to generate and detach a plurality of molten droplets along the joint. Each molten droplet is formed from the welding wire in the first stage. | 07-17-2014 |
| 20140263246 | Gas Phase Alloying for Wire Fed Joining and Deposition Processes - Gas is introduced into molten metal during an additive metal fabrication process and/or during a metal fusion process. The gas may comprise a process gas that flows through a tubular feed wire. The amount of process gas introduced can be controlled to vary the composition and/or material properties of metal deposits formed from a molten metal. Material properties such as yield strength, hardness, and fracture toughness can be increased or decreased in specific regions to provide material property gradients that closely correspond to expected requirements of components fabricated utilizing additive and/or fusion processes. | 09-18-2014 |
| 20140263247 | SYSTEMS AND METHODS FOR NETWORKING, CONFIGURATION, CALIBRATION AND IDENTIFICATION OF WELDING EQUIPMENT - Methods and systems for using near field communication (NFC) protocol and logic to calibrate welding operations and systems are described. Further, methods and systems for using NFC logic and tags are described for networking, calibrating and linking components that comprise welding systems. | 09-18-2014 |
| 20140263248 | METAL CORED WELDING WIRE THAT PRODUCES REDUCED MANGANESE FUMES AND METHOD - Various embodiments of a metal cored wires and methods are disclosed. In one embodiment of the present invention, a metal cored wire comprises a metal sheath and a metal-powder core material comprising manganese particles. The manganese particles are coated with a coating material to reduce the manganese fumes and exposure during welding. | 09-18-2014 |
| 20150021308 | WELDING METHOD HAVING A MAGNETIC WELDING CLAMPING DEVICE - A method is provided in which two parts ( | 01-22-2015 |
| 20150076130 | FLUX CORED WELDING ELECTRODE FOR 5-9% NICKEL STEEL - A flux cored welding electrode for welding a 5-9% nickel steel workpiece by a flux cored arc welding (FCAW) process comprises a particulate core and a metal sheath surrounding the particulate core, wherein chemical composition of the metal sheath and the chemical composition of the particulate core are selected so that the weld deposit composition produced by the welding electrode comprises ≦0.15 C, ≦6.0 Mn, ≦1.0 Si, ≦0.025 P, ≦0.020 S, 12.0-20.0 Cr, ≧55.0 Ni, 5.5-7.5 Mo, 1.2-1.8 Nb+Ta, ≦12 Fe, ≦0.3 Cu and 0.5-4.0 W. | 03-19-2015 |
| 20150129567 | WELDING SYSTEM WITH SPATTER PROTECTION ASSEMBLY - The invention described herein generally pertains to a system and method for protecting welding system components from welding spatter emitted during welding operations. | 05-14-2015 |
| 20150298234 | SYSTEMS AND METHODS FOR BONDING AN IMPLANTABLE MEDICAL DEVICE - Techniques and tools for bonding components of an implantable medical device are disclosed. Such techniques may be implemented to bond components of a battery of the implantable medical device that may include a cover, a case, an electrode assembly and a feedthrough pin for forming one of the anode or cathode terminals. The implantable medical device includes a battery that is enclosed in a housing to supply power to other electrical components of the device and to generate stimulation pulses for functions such as therapy delivery and sensing by the device. | 10-22-2015 |
| 20150298241 | HYBRID JOINT PROJECTIONS - The invention relates to the manufacture of hybrid joints more particularly to the manufacture of joints between parts made of differing materials and most particularly to the manufacture of a metallic component comprising a plurality of preformed projections which penetrate composite fabric within a composite part. Particularly there is a method of forming an array of projections on a surface of a metallic component, the method including the steps of bringing at least one preformed projection into at least close proximity to the surface of the component and causing a portion of the projection and a portion of the component in the region of an intersection thereof to at least partially melt, and causing them to be joined together. | 10-22-2015 |
| 20150343548 | METHOD FOR JOINING WIRE - A method of joining wire includes preparing a first discrete region of a first wire at a first end of the first wire. The prepared first discrete region is welded to a component to form a joint such that material of the prepared first discrete region at least partially thickens the joint. The component is one of a second end of the first wire, an end of a second wire, or a non-wire component. The joint may be heat treated according to a three-stage heat treatment process. Mechanical stress may be induced in the joint during the heat treatment so that the joint is subjected to thermo-mechanical processing. | 12-03-2015 |
| 20150360325 | STICK ELECTRODE - The exposed metal tip of the strike end of an SMAW welding electrode is covered with a protective coating formed from a binder and metal particles. Because metal particles rather than graphite particles are used to provide electrical conductivity to this protective coating, flare-up of the arc when initially struck is eliminated substantially completely. In addition, the potential for weld porosity problems is also eliminated, because the metal particles of the inventive electrode do not produce CO | 12-17-2015 |
| 20150375331 | SYSTEM AND METHOD FOR CONTROLLING WIRE FEED SPEED - A method of controlling a welding system includes providing a welding wire to a welding torch at a first wire feed speed, providing a pulsed power output to the welding wire via a contact point of the welding torch, determining, utilizing a sensing system, a contact-point-to-work-distance (CPWD) between the contact point and a workpiece, and changing, utilizing a controller, the wire feed speed of the welding wire to a second wire feed speed based at least in part on the determined CPWD. | 12-31-2015 |
| 20150375332 | NON-CONTACT LAMINAR FLOW DRAWN ARC STUD WELDING NOZZLE AND METHOD - A plurality of screens can be supported within a nozzle assembly and positioned so that gas from a housing manifold flows through the plurality of screens and into a flash shield nozzle. The flash shield nozzle can include a partial-parabolic-shaped portion. A distal end of a collet holding the stud during welding can extend past the distal end of the flash shield nozzle and any other component of the nozzle assembly to maintain a gap between a workpiece the stud is being welded to and the nozzle assembly so that no component of the nozzle assembly contacts the workpiece during stud welding. Related methods can include welding a stud to a workpiece including an obstruction or welding impediment. | 12-31-2015 |
| 20160001403 | WELDING FILLER MATERIAL FOR BONDING DIFFERENT KIND MATERIALS, AND METHOD FOR PRODUCING DIFFERENT KIND MATERIAL WELDED STRUCTURE - Provided are a welding filler material for bonding different kind materials that improves joint strength and reduces cracks at the bonded part in different kind material bonding of an aluminum material or an aluminum alloy material and a steel material and has difficulty to break at the time of the wire drawing process, and a method for producing a different kind material welded structure. The welding filler material is formed by containing at least 1.0% by mass to 6.0% by mass of Si and 0.01% by mass to 0.30% by mass of Ti with a remainder being aluminum and inevitable impurities. Alternatively, the welding filler material is formed by filling a flux into a sheath material so that the filling rate is 2.0% by mass to 20.0% by mass relative to the mass of the whole wire, where the sheath material is formed of an aluminum alloy that contains at least 1.0% by mass to 6.0% by mass of Si and 0.01% by mass to 0.30% by mass of Ti with the remainder being aluminum and inevitable impurities. An aluminum material or an aluminum alloy material and a steel material are welded with each other using one of these welding filler materials. | 01-07-2016 |
| 20160039034 | SYSTEM AND METHOD OF MARKING A WELDING WORKPIECE - An embodiment of a system includes a marking tool configured to apply one or more markers on a first surface of a workpiece for a live welding session. The one or more markers have known geometric properties that may facilitate determination of the first surface and a weld joint. An embodiment of a method includes applying a first set of one or more markers to a first surface of a workpiece, detecting the applied first set of one or more markers with a camera, and determining, via processing circuitry coupled to the camera, at least one of the first surface of the workpiece and a weld joint based at least in part on the detected first set of one or more markers. | 02-11-2016 |
| 20160082541 | SYSTEMS AND METHODS FOR WELDING ZINC-COATED WORKPIECES - A welding system includes a welding power source configured to provide pulsed electropositive direct current (DCEP), a gas supply system configured to provide a shielding gas flow that is at least 90% argon (Ar), a welding wire feeder configured to provide tubular welding wire. The DCEP, the tubular welding wire, and the shielding gas flow are combined to form a weld deposit on a zinc-coated workpiece, wherein less than approximately 10 wt % of the tubular welding wire is converted to spatter while forming the weld deposit on the zinc-coated workpiece. | 03-24-2016 |
| 20160151853 | METHOD FOR WELDING DISSIMILAR METALS, DISSIMILAR METALLIC BUSBAR MANUFACTURED USING SAME, AND SECONDARY BATTERY COMPRISING SAME | 06-02-2016 |
| 20160158893 | WELDING DEVICE AND METHOD OF WELDING AUTOMOBILE PARTS - A welding device provided for welding automobile parts received in a pallet to a vehicle body includes: an aligner configured to grip and align the parts received in the pallet; a mover configured to move the aligner to take out the parts and let the taken out parts adhere to an installation position of the vehicle body; and a welding machine configured to weld the adhering portion between the parts and the vehicle body. | 06-09-2016 |
| 20160175971 | SYSTEMS AND METHODS FOR MEASURING CHARACTERISTICS OF A WELDING CABLE WITH A LOW POWER TRANSCEIVER | 06-23-2016 |
| 20160175977 | SYSTEM AND METHOD FOR COMMUNICATION WITH WELDING GAS LINE | 06-23-2016 |
| 20160193679 | MEASUREMENT OF THREE-DIMENSIONAL WELDING TORCH ORIENTATION FOR MANUAL ARC WELDING PROCESS | 07-07-2016 |
| 20160375518 | Method for welding pipelines from high-strength pipes with controllable heat input - The invention relates to the field of construction, particularly to welding of above- and underground high-strength pipelines with controlled heat input. Application of the invention will increase the load-bearing capacity of the pipelines made with the use of butt-welded pipes, pipe spools, pipe strings. The method includes joining of two or more cylindrical metal pipes, pipe spools and pipe strings by the welded ring butt with the use of the arc welding for the whole perimeter of the pipe. Criteria for a high-quality welded joint include optimal selection of parameters of the welding thermic cycle. The suggested welding method allows to have the optimal structure, high strength and viscoplastic properties in areas of the welded joint, to provide for the required load-bearing capacity of the pipeline and its reliability during operation. | 12-29-2016 |
| 20180021871 | PROCESS AND APPARATUS FOR WELDING WORKPIECE HAVING HEAT SENSITIVE MATERIAL | 01-25-2018 |
| 20080264923 | WELDING SYSTEM AND METHOD WITH IMPROVED WAVEFORM - Provided is a welding system and method for controlling a welding system with an improved waveform. In accordance with one aspect of the present invention, a welding system waveform is calibrated such that the welding transfer regularly occurs during short circuits, comprising applying a voltage and a current to a welding electrode, applying an increased voltage and an increased current to the welding electrode, increasing the current to the welding electrode when a short circuit is detected, and maintaining the increased current applied to the welding electrode until a desired time expires after the short circuit is detected or until the short circuit clears, whichever occurs first. | 10-30-2008 |
| 20090026188 | Cold-Metal-Transfer Welding Process and Welding Installation - The invention relates to a cold metal transfer welding process, in which the welding process is defined by the cyclic alternation of an arc phase and a short-circuit phase. According to the invention, during an arc phase, a welding rod is displaced towards the workpiece until it makes contact with the latter and during the short-circuit phase the welding rod displacement is reversed and the welding rod is then moved away from the workpiece. The welding current and/or the welding voltage are controlled during the arc phase in such a way that the welding rod melts, forming a droplet and that during the short-circuit phase a breaking of the short-circuit is suppressed by means of the welding current. The invention also relates to a welding installation for carrying out the welding method. The aim of the invention is to achieve optimal welding results using the smallest possible number of settings. To achieve this, a displacement frequency of the welding rod is set as a welding parameter by means of a control organ, the frequency being used to define the number of arc phases and short-circuit phases per second, and at least one additional welding parameter is set. A control unit determines, sets and controls all other welding parameters that are required to achieve the predefined displacement frequency. | 01-29-2009 |
| 20090120921 | Method and Apparatus for Welding - The invention relates to a welding method and apparatus. According to the method between the welding wire and the base material an arc ( | 05-14-2009 |
| 20090127242 | Control method for arc welding apparatus and arc welding apparatus - A control method for an arc welding apparatus having a function of prohibiting detection of neck based on a change amount of welding voltage and an arc welding apparatus using the method. Thus, since neck determination can be carried out accurately by preventing wrong detection of neck, it is possible to reduce the occurrence of spatter. | 05-21-2009 |
| 20090212034 | DUAL POWER PIN CONNECTOR ASSEMBLY FOR A MIG WELDING MACHINE - A dual power pin connector assembly for connecting both a MIG welding gun and a spoolgun to a welding machine. The dual power pin connector is comprised of a busbar portion that electrically and mechanically couples the positive output terminal of the welding machine power supply to a wire drive for the MIG welding gun. The connector is further comprised of an integral quick release assembly/clamping portion that electrically and mechanically connects the positive power supply terminal to a power supply cable for the spoolgun. The clamping portion receives and retains a power pin coupled to one end of the spoolgun power cable in a receptacle that is manually tightened and loosened. | 08-27-2009 |
| 20090230108 | WELDING METHOD AND WELDED ARTICLE - Disclosed is a welding method of carrying out an alternating current arc welding by switching polarities of a voltage applied between a wire | 09-17-2009 |
| 20090242534 | Method for Welding a Workpiece - The invention describes a method for welding a workpiece ( | 10-01-2009 |
| 20090261085 | PURE AR GAS SHIELDED WELDING MIG FLUX-CORED WIRE AND MIG ARC WELDING METHOD - A pure Ar-MIG welding wire for welding steel according to the present invention is formed of a flux-cored wire. The flux-cored wire is formed in the manner that a formation formed by welding a carbon steel hoop into a pipe shape or a seamless pipe is used as an outer sheath, the outer sheath is filled with a flux, and a wire drawing process is performed. The flux accounts for 7 to 27 mass % of the total wire mass. The wire contains graphite in the amount of 0.16 to 2.00 mass % on the basis of the total wire mass and iron powder in the amount of 20 mass % on the basis of the total flux mass. According to the construction, neither expensive metal resource nor a greenhouse effect gas is used, slag and fume generation is inhibited, and a weld joint having a high static tensile strength and fatigue strength can be obtained. | 10-22-2009 |
| 20090302016 | WELDING PROCESS USING DIRECT CURRENT ("DC") ELECTRIC WELDING MACHINE - This invention concerns an improvement in a welding process using direct current (DC), basically comprehending the increase of voltage, in the conventional welding machine 70-80 volts, to 90 volts. Thus, the electric welding arc becomes stable and mild, without warming the electrode excessive and reducing sprinkles and penetration, with only a capillary melting. | 12-10-2009 |
| 20090321401 | Method and System to Increase Heat Input To a Weld During a Short-Circuit Arc Welding Process - A method and a system to increase heat input to a weld during an arc welding process. A series of electric arc pulses are generated between an advancing welding electrode and a metal workpiece using an electric arc welding system capable of generating an electric welding waveform to produce the electric arc pulses. A cycle of the electric welding waveform includes a pinch current phase providing an increasing pinch current level, a peak current phase providing a peak current level, a tail-out current phase providing a decreasing tail-out current level, and a background current phase providing a background current level. At least one heat-increasing current pulse of the cycle is generated, providing a heat-increasing current level, during the background current phase, where the heat-increasing current level is above the background current level. The cycle of the electric welding waveform with the at least one heat-increasing current pulse may be repeated until the arc welding process is completed. | 12-31-2009 |
| 20090321402 | METHOD TO IMPROVE THE CHARACTERISTICS OF A ROOT PASS PIPE WELD - A method and a system for forming a root pass weld for a root pipe joint. A substantially periodic electric welding waveform is generated and a series of electric arc pulses are generated between an advancing welding electrode and a root pipe joint in response to the electric welding waveform. The electric welding waveform includes a base cycle having a background current phase providing a background current level, a peak current phase providing a peak current level, a tail-out current phase providing a decreasing tail-out current level, and at least one heat-increasing current pulse during the background current phase providing a heat-increasing current level being above the background current level. | 12-31-2009 |
| 20100059493 | INDUCTION HEATED, HOT WIRE WELDING - A hot wire welding process. An induction coil is used to preheat the filler metal wire prior to its entering the welding puddle/arc region. An induction coil is placed in close proximity to the welding arc. The filler wire is guided and supported by a delivery guide so that the filler wire passes through the center of, and is insulated from, the induction coil. The induction coil induces a current flow in the filler wire. The current produces heat as a result of the electrical resistivity of the filler wire. The heat produced raises the temperature of the filler wire just before it is fed into the weld arc region, thus reducing the energy required from the welding arc to melt the filler metal wire into the weld puddle. | 03-11-2010 |
| 20100089889 | Method And Apparatus For Controlling A Welding System - A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit responsive to the feedback. | 04-15-2010 |
| 20100102048 | Methods and Apparatus for Welding - Embodiments of methods and apparatus for welding are provided. According to one embodiment, an apparatus may include a torch body supporting an electrode at least partially extending from the torch body, the electrode having a longitudinal central axis therethrough. The apparatus may also include a heat transfer block spaced apart from the electrode and at least partially intersecting the longitudinal central axis. An electric arc may be generated between the electrode and the heat transfer block. | 04-29-2010 |
| 20110017718 | METHOD FOR CONTROLLING A WELDER - The invention relates to a method for controlling a welder comprising a fusible electrode, wherein the values of the welding parameters required for a welding process are stored in a storage device and are saved as so-called characteristic curves ( | 01-27-2011 |
| 20110204034 | WIRE FEED SPEED REFERENCED VARIABLE FREQUENCY PULSE WELDING SYSTEM - A pulsed waveform welding operation is implemented by reference to a commanded wire feed speed set by an operator. The wire feed speed is set on a wire feeder, and a signal representative of the commanded wire feed speed is applied to a power supply. The power supply control circuitry references a look-up table in which pulsed waveform parameters are provided based upon wire feed speed. The parameters may include multiple parameters such as pulse frequency, peak current, background current, and current ramp rates. The control circuitry commands power conversion circuitry to generate the commanded waveform as a function of the commanded wire feed speed. | 08-25-2011 |
| 20110248012 | ARC WELDING METHOD AND ARC WELDING APPARATUS - A consumable electrode arc welding method includes: setting an optimal voltage and an increasing slope of a short circuit current to correspond to a setting current; feeding a consumable electrode wire; and alternately generating a short circuit condition and an arc condition, thereby carrying out welding, wherein the short circuit current is controlled by changing the increasing slope of the short circuit current according to a difference between the setting voltage and the optimal voltage when the setting voltage is different from the optimal voltage. With this, the increasing slope of the short circuit current and the current value corresponding to the inflection point of the short circuit current are automatically changed. | 10-13-2011 |
| 20130056454 | APPARATUS AND METHODS FOR REDUCING THE AMBIENT MAGNETIC FIELD STRENGTH TO FACILITATE ARC WELDING - Apparatus for reducing the strength of an ambient magnetic field in a weld region comprises a magnetic field generator ( | 03-07-2013 |
| 20130213948 | METHOD AND SYSTEM TO INCREASE HEAT INPUT TO A WELD DURING A SHORT-CIRCUIT ARC WELDING PROCESS - A method and a system to increase heat input to a weld during an arc welding process. A series of electric arc pulses are generated between an advancing welding electrode and a metal workpiece using an electric arc welding system capable of generating an electric welding waveform to produce the electric arc pulses. A cycle of the electric welding waveform includes a pinch current phase providing an increasing pinch current level, a peak current phase providing a peak current level, a tail-out current phase providing a decreasing tail-out current level, and a background current phase providing a background current level. At least one heat-increasing current pulse of the cycle is generated, providing a heat-increasing current level, during the background current phase, where the heat-increasing current level is above the background current level. The cycle of the electric welding waveform with the at least one heat-increasing current pulse may be repeated until the arc welding process is completed. | 08-22-2013 |
| 20130264323 | PROCESS FOR SURFACE TENSION TRANSFER SHORT CIRUIT WELDING - The invention described herein generally pertains to a method for improved necking detection of weld beads in welding processes involving surface tension transfer short circuit welding in which at least one threshold value which is used to detect the event of necking is dynamically updated for each welding cycle in a welding waveform based on characteristics of the preceding cycle. | 10-10-2013 |
| 20130327749 | METHOD AND SYSTEM TO START AND USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR WELDING ALUMINUM TO STEEL - A method and system to weld or join workpieces of different materials employing a high intensity energy source to create a weld puddle and at least one resistive filler wire which is heated to at or near its melting temperature and deposited into the weld puddle. | 12-12-2013 |
| 20140124493 | RADIO FREQUENCY IDENTIFICATION (RFID) TOGGLE SWITCH - The invention described herein generally pertains to a system and method for managing a Radio Frequency Identification (RFID) system by employing a switching means to at least a portion of at least one RFID tag in order to activate or deactivate such RFID tag. The switching means allows the transmission of data between an RFID tag and RFID reader to be controlled. | 05-08-2014 |
| 20140246413 | INTEGRATED ELECTRODE DRYER - A welding system includes a welder configured to output power to form an arc between a stick electrode and a workpiece. The welder includes a compartment configured to receive and store additional stick electrodes, and the welder is configured to heat the additional stick electrodes stored in the compartment. | 09-04-2014 |
| 20140353299 | HAND-TURNABLE WELDING CABLE CONNECTION - A hand-turnable welding cable connection includes a welding cable portion and a cooperable welding torch portion. The welding cable portion includes a receiver having an opening defined by an inner, generally cylindrical surface. A slit extends through the receiver. A fastener extends across the slit generally transverse to a longitudinal axis of the receiver and partially protrudes into the opening. The welding torch portion includes a tubular member having a generally cylindrical outer surface. A transverse, circumferentially extending groove is formed on the outer surface of the tubular member. The groove may extend generally 90 degrees around the outer surface. A flat portion is formed on the outer surface of the tubular member. The flat surface extends longitudinally from an end of the groove toward an end of the tubular member. The welding torch portion is insertable in the welding cable portion, and the fastener engages the groove. | 12-04-2014 |
| 20150144609 | WELDING OR CUTTING POWER SUPPLY USING PHASE SHIFT DOUBLE FORWARD CONVERTER CIRCUIT (PSDF) - A technique for dynamically adjusting an output voltage for a welding or cutting operation is provided. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits. The present disclosure provides methods and systems for increasing synchronized duty cycles in a pair of forward converter circuits in response to increasing output voltage demand then changing a phase shift between the duty cycles in response to further increases in output voltage demand. The present disclosure provides a controller designed to receive input signals and generate output pulse width modulation signals that control the duty cycle width and phase shift of the outputs of the forward converter circuits in response to these signals. Methods of accommodating for the time needed for the transformer core to reset via leading edge or lagging edge compensation are provided. | 05-28-2015 |
| 20150328709 | SYSTEM AND METHOD FOR HOT WIRE TIG POSITIONED HEAT CONTROL - The invention described herein generally pertains to a system and method related to energizing a welding wire based on a location of an electrode at an edge on a workpiece. An edge detector can be configured to identify an edge on the workpiece during a welding operation and a controller can be configured to mange a temperature of a puddle formed by the electrode by adjusting one or more welding parameters. The welding parameters can be, but are not limited to, an energizing of the welding wire, a wire feed speed, a temperature of a high intensity heat source (e.g., arc, a sub arc, a tungsten inert gas (TIG) arc, a metal inert gas (MIG) arc, a laser, a plasma arc, a metal core, or a flux core), movement speed, among others. | 11-19-2015 |
| 20160151851 | WELDER GENERATOR ENGINE SPEED CONTROL | 06-02-2016 |
| 20160158867 | WELDING ASSEMBLY FOR HIGH-BANDWIDTH DATA COMMUNICATION - A welding or cutting system is provided that uses welding cables between a wire feeder and a power supply for high-speed data communications between the wire feeder and the power supply. A system designed as discussed herein eliminates the need for voltage and/or current sense leads for communication arc voltages/currents detected at the welding operation. | 06-09-2016 |
| 20160158868 | WELDING ASSEMBLY FOR HIGH-BANDWIDTH DATA COMMUNICATION - A welding or cutting system is provided that uses welding cables between a wire feeder and a power supply for high-speed data communications between the wire feeder and the power supply. A system designed as discussed herein eliminates the need for voltage and/or current sense leads for communication arc voltages/currents detected at the welding operation. | 06-09-2016 |
| 20160175968 | METHOD AND APPARATUS FOR PROVIDING WELDING AND AUXILIARY POWER | 06-23-2016 |
| 20100147818 | WELDED METAL LAMINATE STRUCTURE AND METHOD FOR WELDING A METAL LAMINATE STRUCTURE - An improved method for welding a laminated metal structure is presented herein. In one embodiment, the method includes: placing the laminated structure against a second work piece, feeding a consumable metal cored wire electrode to the weld zone, feeding a stream of shielding gas to the weld zone, and melting the consumable metal cored wire electrode. If the weld joint is a plug weld, the method also includes forming a plug hole in one of the work pieces, melting the consumable metal cored wire electrode along the circumference of the plug hole, and thereafter progressively spiraling the welding gun inwards towards the center of the plug hole to fill it with the melted electrode. The method may also include determining if melting the electrode is causing sputtering, and delaying spiraling the welding gun inwards until the sputtering subsides. A welded laminate metal structure is also provided herein. | 06-17-2010 |
| 20100163541 | PROCESS FOR MANUFACTURING LEAD TERMINAL FOR CAPACITOR - A process for manufacturing a leadfree lead terminal for capacitor, in which whisker generation can be avoided. There is provided a process for manufacturing a lead terminal for capacitor, comprising bringing metal wire ( | 07-01-2010 |
| 20130161303 | FLUX-CORED WELDING WIRE FOR CARBON STEEL AND PROCESS FOR ARC WELDING - Arc welding is performed with a flux-cored welding wire using pure Ar shielding gas with a pulsed current having a peak current of 340 to 540 A and a peak current time of 0.7 to 2.5 ms as a welding current, in which the wire includes a carbon-steel sheath and contains, on a mass percent basis, 0.02% to 0.15% C, 0.30% to 1.50% Si, 0.70% to 2.30% Mn, 0.010% to 0.100% S, 0.01% to 0.18% Ti, 0.030% or less P, and 0.15% or less Cr, with respect to the total mass of the wire, in which the wire has a flux content of 10.0% to 30.0%, the flux has a S content of 0.030% to 0.600%, and the wire satisfies [S | 06-27-2013 |
| 20130233839 | SYSTEMS AND METHODS FOR WELDING ELECTRODES - The invention relates generally to welding and, more specifically, to electrodes for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core. The core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight. Furthermore, the carbon source is selected from the group: carbon black, lamp black, carbon nanotubes, and diamond. | 09-12-2013 |
| 20130270246 | WELDING SOLID WIRE AND WELD METAL - The objective of the present invention is to provide a similar-metal-composition welding solid wire, and weld metals therefor, with which both excellent bead shape and high ultralow-temperature toughness for the weld joints can be achieved when welding 9% Ni steels together by means of a high-efficiency MIG welding method. A fixed ratio of a REM and O are included in a similar-metal-composition welding solid wire of a 9% NI steel base material, and oxygen is supplied in a trace amount in a range that does not hinder the ultralow-temperature toughness of the weld joint ( | 10-17-2013 |
| 20130334189 | WELDING WIRE AND WELDING METHOD - A welding wire is formed from a hoop having an inner surface and formed from a metal material, a core wire having a surface and formed from a metal material, and an alkaline metal compound. The hoop metal material and the core wire metal material are different from each other. A composition of the welding wire is divided into the hoop metal material and the core wire metal material. The alkaline metal compound is disposed between the inner face of the hoop and the surface of the core wire. An amount of the alkaline metal compound is from more than 10 ppm to 1000 ppm based on a weight of the welding wire. | 12-19-2013 |
| 20140061175 | SYSTEMS AND METHODS FOR WELDING ELECTRODES - The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core, in which the sheath includes less than approximately 0.06% carbon by weight. The core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight. | 03-06-2014 |
| 20140138366 | SELF-ADJUSTING WIRE FOR WELDING APPLICATIONS - Disclosed are self-adjusting wires, methods of making these self-adjusting wires, and thermal joining processes (such as gas metal arc welding or laser brazing) and other processes using these self-adjusting wires. The wires have a core of a metal or metal alloy suitable as a joining material in the joining process and an exterior layer of a shape-memory alloy, which may be continuous about the exterior of the core or discontinuous such as a longitudinal strip or strips. The shape-memory alloy of the self-adjusting wire is “trained” to a straight-wire shape in its austenite phase. In using the self-adjusting wire in a process, a bent end of the self-adjusting wire is straightened by heating the self-adjusting wire above the austenite phase transition temperature of the shape-memory alloy. | 05-22-2014 |
| 20140138367 | SELF-ADJUSTING CLAD WIRE FOR WELDING APPLICATIONS - Disclosed are self-adjusting wires, methods of making these self-adjusting wires, and thermal joining processes (such as gas metal arc welding or laser brazing) and other processes using these self-adjusting wires. The wires have an outer layer of a metal or metal alloy suitable as a joining material in the joining process and a core of a shape-memory alloy. The outer layer may be continuous about the exterior of the core or discontinuous such as a longitudinal strip or strips. The shape-memory alloy of the self-adjusting wire is “trained” to a straight-wire shape in its austenite phase. In using the self-adjusting wire in a process, a bent end of the self-adjusting wire is straightened by heating the self-adjusting wire above the austenite phase transition temperature of the shape-memory alloy. | 05-22-2014 |
| 20150321295 | LLT WELDING CONSUMABLES - The core of a metal cored welding electrode is formulated with a specific Cr/Ni-rich or Cr/Mn-rich composition. The welds produced when this electrode is used for welding high strength steels exhibits sufficient fatigue resistance so that subsequent PWHT or other post-weld treatment procedures is unnecessary. | 11-12-2015 |
| 20160039051 | ALUMINUM DEOXIDIZING WELDING WIRE - Provided is a welding method and electrodes (wires) with aluminum as a primary deoxidizer and a basic flux system for joining a workpieces with weld metal of comparable strengths and enhanced toughness. For instance, provided is a welding wire, comprising an aluminum content configured to act as a primary deoxidizer, and an overall composition configured to produce a weld deposit comprising a basic slag over a weld bead, wherein the aluminum content is configured to kill the oxygen in the weld pool, and wherein the oxygen comprises oxygen provided by a shielding gas or produced by heating of welding filler materials. Further provided is a welding method comprising arc welding a workpiece using an electrode having aluminum as a primary deoxidizer under a gas shield to produce a bead of weld deposit and a basic slag over the weld bead. | 02-11-2016 |
| 20160158865 | ARC SPOT WELDED JOINT AND MANUFACTURING METHOD THEREOF - In an arc spot welded joint manufacturing method in which two steel sheets configured by high strength steel having a component carbon content of 0.07% by mass or greater are overlapped, and the sheets are lap welded together in a spot pattern. The method includes a first welding pass in which a second steel sheet on the lower side is melted up to a back face side, and first weld metal is formed including a first reinforcement portion, and a second welding pass in which a second weld metal including a second reinforcement portion is formed over the first weld metal, such that the heights of the first reinforcement portion or the second reinforcement portion is formed at t/5 or greater with respect to the sheet thickness t of the steel sheets, and the average weld bead diameter is formed at from 3t to 10t. | 06-09-2016 |
