Class / Patent application number | Description | Number of patent applications / Date published |
219073000 | Slag (e.g., submerged arc) | 66 |
20090261073 | SYSTEM AND METHODS OF USING VARIABLE WAVEFORM AC ARC WELDING TO ACHIEVE SPECIFIC WELD METAL CHEMISTRIES - A system and methods for overlaying metal in an arc welding operation to achieve a resultant weld metal chemistry of the resultant weld metal. Various combinations of DC+/DC− balance settings and DC offset settings for an AC Waveform of an arc welding overlaying process may be correlated to resultant chemistries of resultant weld metals. The correlations may be subsequently used to select a combination of a balance setting and an offset setting for an AC waveform that results in a desired weld metal chemistry for an arc welding overlaying process using an overlay metal and a base substrate metal. | 10-22-2009 |
20100133239 | Submerged Arc Narrow Gap Welding With Oscillating Electrode - There is described a method for submerged-arc narrow-gap welding, in which the wire electrode is set in oscillating motion in the gap in order to produce a first bead, the arc moving backwards and forwards between one of the workpiece edges and a middle section of the gap so that the first bead does not extend from the first to the second workpiece edge. | 06-03-2010 |
20100163530 | Dual Dual Welder - An apparatus and method to create a plurality of parallel joints by providing a carriage which traverses along the joints. The carriage has two or more welding tips for each joint. Alignment of the welding tips with the joints is maintained by rollers secured to the carriage. These rollers traverse along the surfaces of the work piece. The work pieces are secured on a pair of turntables having a common access of rotation which is parallel with the joints. The joints in both the top and bottom of the header can be created by rotating the work pieces in to the bottom side once the welds in the topside have been completed. | 07-01-2010 |
20110036814 | SUBMERGED ARC WELDING METHOD WITH MULTIPLE ELECTRODES FOR STEEL MATERIAL - Steel is subjected to multiple-electrode submerged arc welding with three or more electrodes in which a direct-current power source is used to supply current to a first electrode, the welding by the first electrode is carried out at a current density of 250 A/mm | 02-17-2011 |
20110042355 | FEEDING SYSTEM FOR A WELDING WIRE FOR A SUBMERGED WELDING PROCESS - A system for submerged arc welding, having a container in which welding wire is stored so as to be available for welding, a welding torch, a guiding system for guiding the welding wire from the container towards the welding torch, and a feeder for moving the welding wire from the container through the guiding system towards the welding torch, the guiding system using at least one rolling element for guiding the welding wire. A method of operating a submerged arc welding system, wherein a first supply of welding wire and a second supply of welding wire are provided, the first and the second supplies each having a forward end and a rearward end, wherein the rearward end of the first supply is welded to the forward end of the second supply such that a weld is formed which can be fed through the submerged arc welding system. | 02-24-2011 |
20110100961 | WELDING PROCESS FOR PRODUCING ROTATING TURBOMACHINERY - A method for welding dissimilar metals involved selecting a steel having approximately 1-3 weight % chromium (Cr) content and a first coefficient of thermal expansion at a predetermined first temperature for a first part [ | 05-05-2011 |
20110198317 | HYBRID WELDING WITH MULTIPLE HEAT SOURCES - A method of welding a joint includes directing a first output from a high energy density heat source, such as a laser, against a first side of the joint. The method further includes directing a second output from an arc welding heat source, such as a gas metal arc welding torch, against a second side of the joint. The first output produces a keyhole surrounded by a molten metal pool which extends from the first side of the joint toward the second side of the joint. In some embodiments a third output from a second arc welding heat source may also be directed at the first side of the joint. A second molten metal pool produced by the arc welding heat source joins with the first molten metal pool and the third molten metal pool to form a common molten metal pool which solidifies to form the weld. | 08-18-2011 |
20120024822 | COMBINATION WELDING METHOD USING COMBINATION OF GAS METAL ARC WELDING AND SUBMERGED-ARC WELDING AND COMBINATION ARC WELDING MACHINE - Provided are a combination welding method and a combination arc welding machine thereof having excellent construction efficiency and preventing a deterioration of toughness of a HAZ by maintaining the current density of each of gas metal arc welding and submerged-arc welding within an appropriate range at the time of welding a steel plate by the combination of the gas metal arc welding using multielectrodes and the submerged-arc welding using multielectrodes. The gas metal arc welding is performed using two or more electrodes, a wire for welding having a wire diameter of 1.4 mm or more is used in the first electrode of the gas metal arc welding, and a current density of the first electrode is set to 320 A/mm | 02-02-2012 |
20120043304 | MELT TYPE HIGH BASICITY FLUX FOR SUBMERGED ARC WELDING USE - High basicity melt flux for submerged arc welding use which is used when preparing high strength weld metal and gives sound, high toughness weld metal free of top slag-in is provided. The melt flux for submerged arc welding use which is used when welding the seams of UO pipe for pipeline use having a tensile strength of a base material of 800 MPa to 1200 MPa is melt flux for submerged arc welding use characterized by containing, by mass%, CaO: 5.0% to 25.0%, MgO: 1.0% to 5.0%, Al | 02-23-2012 |
20120111837 | IN-SERVICE WELD REPAIRS USING METAL ARC WELDING UNDER OIL (MAWUO) OF PIPELINES, TANKS, AND VESSELS - Apparatus and methods of repairing an in-service pipeline, tank, and/or vessel are provided. Generally, a metal arc welding under oil process employing an automated metal arc welding setup with a continuous wire feed is utilized. The process may be used in connection with a smart pig to perform in-situ internal repairs of in-service pipelines, tanks, and/or vessels. For example, a pipeline pig or other device is contemplated that employs an internal power supply, a navigation system, and a metal arc welding under oil system that is able to travel vast distances within a pipeline to reach pipeline segments that are either buried underground, under highways, or underwater making access very difficult. Once at its desired location, the pipeline pig performs in-situ welding or other internal repairs to the in-service pipeline. The disclosed apparatus and methods provide great flexibility to the repair of pipelines, tanks, and/or vessels. | 05-10-2012 |
20120187093 | FILLER MATERIAL FOR WELDING - A filler material for welding is characterized by the following chemical composition (amounts in % by weight):
| 07-26-2012 |
20120193327 | BONDED FLUX AND SOLID WIRE FOR SUBMERGED ARC WELDING, AND METHOD FOR SUBMERGED ARC WELDING OF STEEL FOR LOW TEMPERATURE SERVICE - Disclosed is a bonded flux and a solid wire for submerged arc welding, and a method for submerged arc welding of a low-temperature steel each of which gives a weld bead (weld metal) having excellent low-temperature fracture toughness with satisfactory weldability. The bonded flux includes 23-43% of MgO, 11-31% of Al | 08-02-2012 |
20120199559 | SUBMERGED ARC WELDING SYSTEM WITH PRESSURIZED FLUX DELIVERY AND WELDING TORCH - A submerged arc welding system includes a robot having a first arm connected to a second arm, and at least one wire supply. A welding torch is connected to a first end of the second arm of the robot. A wire motor is mounted to a second end of the second arm of the robot. The wire motor moves wire from the wire supply along a wire path to the welding torch. The system further includes a flux supply and a flux delivery system configured to move flux from the flux supply along a flux path to the welding torch. | 08-09-2012 |
20120234798 | CLADDING APPLICATION METHOD AND APPARATUS USING HYBRID LASER PROCESS - Disclosed is a method for affixing a metal cladding to a metal base. The method includes: heating the metal cladding and a surface of the metal base with a heating device to create a molten metal pool having molten metal cladding layered upon molten metal base material in the metal base; stabilizing a temperature gradient of the molten metal pool with a laser beam directed into the molten metal pool; and cooling the molten metal pool to affix solidified cladding to the metal base. | 09-20-2012 |
20120241414 | EQUIPMENT AND PROCEDURE FOR THE AUTOMATED MANUFACTURE OF TUBULAR STRUCTURES - Equipment and procedure for the automated manufacture of tubular structures of any size and of polygonal geometry of any number of sides, the said equipment containing a central axis ( | 09-27-2012 |
20120273466 | METHOD AND APPARATUS FOR HEAVY PLATE JOINING WITH HYBRID LASER AND SUBMERGED-ARC WELDING PROCESS - A welding system and method is provided for welding heavy plate, where the method and device include using a laser which directs a beam to a first weld puddle to weld at least a portion of a work piece and a welding torch to direct a first welding electrode to the first weld puddle while the beam is being directed to the weld puddle. The welding torch deposits the first welding electrode to create a first weld bead. A flux nozzle is employed to deposit a welding flux onto the weld bead, and a submerged arc welding torch is used to direct a submerged arc filler metal to the weld bead to create a second weld bead through a submerged arc welding process, where the submerged arc welding process melts a portion of the first weld bead to consume the melted portion into the second weld bead. | 11-01-2012 |
20120305531 | Automatic Welding Method - An automatic welding method includes a preliminary step and a joining step. The preliminary step is configured to place a metal object having a multi-dimensional curved weld zone on a platform, and to clamp a welding torch with a welding torch clamping device. The joining step is configured to generate a relative movement between a tip of the welding torch and the multi-dimensional curved weld zone of the metal object, and to electrify the welding torch to weld the metal object by way of short circuiting arc transfer. An angle difference between a reference position and an instant position of the welding torch is 0 to 135 degrees when the welding torch welds the metal object, so as to keep the slag from spraying, wherein the welding torch is at the reference position when the tip thereof is pointed straight down towards the ground. | 12-06-2012 |
20140299580 | METHOD FOR WELDING ROTORS FOR POWER GENERATION - The invention relates to a method for welding rotors for power generation having a plurality of rotor discs arranged along a rotor axis. The method includes providing forged and NDT tested rotor discs and machining the discs for weld seam preparation. The weld seam preparation has an inner narrow TIG welding gap and an adjoining outer SAW welding gap. The method further includes stapling the discs on top of each other; and checking the run-out of the stapled discs relative to each other and as a whole and, if necessary, adjusting the staple. In addition the method includes melting the root of the weld without weld filler using TIG welding; increasing the weld height by narrow gap TIG welding with parent metal weld filler to allow tilting of the rotor in horizontal position; tilting the rotor in horizontal position; finalizing the welding by filling the outer SAW welding gap using SAW welding; and checking the welds of the rotor by NDT using ultrasonic testing. A weld seam preparation machining step that includes preparing an optimized transition geometry of TIG welding gap to SAW welding gap transition with a first opening having a first opening angle and a second opening having a second opening angle greater than said first opening angle. | 10-09-2014 |
20140346149 | SUBMERGED ARC WELDING METHOD FOR STEEL PLATE - Disclosed is a submerged arc welding method capable of an attempt to enhance toughness of a welded zone with low heat input and an attempt to decrease a weld reinforcement height by suppressing excessive melting of a wire, and capable of achieving a deep depth of penetration and a wide bead width. In the submerged arc welding method, a first electrode at the head in a welding direction has a wire diameter of 2.0 to 3.2 mm and a current density of 145 A/mm | 11-27-2014 |
20140367365 | Method to make fillet welds - For fillet welding, sufficient amounts of metal must be deposited in order to make welds with sufficient sizes. In conventional submerged arc welding (SAW), the heat input is proportional to the amount of metal melted and is thus determined by the required weld size. In order to reduce the needed heat input, Double-Electrode SAW (DE-SAW) method is used for fillet joints. To minimize the heat input required to produce the welds with required geometry and sizes, a gap is introduced between the panel and the tee forming a modified fillet joint design. The use of the gap improves the ability of DE-SAW to produce the required weld beads at reduced heat input and penetration capability. Major parameters including the gap, travel speed and heat input level have been selected/optimized/minimized to produce required fillet weld beads with a minimized heat input based on qualitative and quantitative analyses. | 12-18-2014 |
20150122781 | SYSTEM AND METHOD FOR SELECTING WELD PARAMETERS - The welder interface described above may increase synergy with the welding system for the user. The welder interface receives input parameters of a desired weld from a user and advises a weld process and weld variables for producing the desired weld. The welder interface may be integral with a component of the welding system, or a separate component that may be coupled with the welding system. The welder interface may utilize data from a look-up table, neural network, welding procedure system, or database to advise the weld process and weld variables. The user may utilize the welder interface to simulate the weld process and the effect of the weld variables on a simulated weld. The user may modify the input parameters prior to producing a weld, and the user may modify the weld variables after reviewing the results of the produced weld for subsequent welding applications. | 05-07-2015 |
20150129559 | High Strength Weld Metal for Demanding Structural Applications - Weld metals and methods for welding ferritic steels are provided. The weld metals have high strength and high ductile tearing resistance and are suitable for use in strain based pipelines. The weld metals are comprised of between 0.03 and 0.08 wt % carbon, between 2.0 and 3.5 wt % nickel, not greater than about 2.0 wt % manganese, not greater than about 0.80 wt % molybdenum, not greater than about 0.70 wt % silicon, not greater than about 0.03 wt % aluminum, not greater than 0.02 wt % titanium, not greater than 0.04 wt % zirconium, between 100 and 225 ppm oxygen, not greater than about 100 ppm nitrogen, not greater than about 100 ppm sulfur, not greater than about 100 ppm phosphorus, and the balance essentially iron. The weld metals are applied using a power source with pulsed current waveform control with <5% CO | 05-14-2015 |
20150290752 | FORMING PROCESS FOR HOT FORMING A STEEL SHEET OF A ROTOR BLADE TO BE PRODUCED FOR A WIND ENERGY PLANT - The present invention concerns a forming process for hot forming of a steel sheet of a rotor blade to be produced of a wind power installation, including the steps heating the steel sheet in a furnace while the steel sheet is lying on a hearth bogie, displacing the heated steel sheet with the hearth bogie from the furnace into a pressing apparatus for the hot forming operation, transloading the heated steel sheet in the pressing apparatus from the hearth bogie on to a form bogie having a counterpart form and pressing the steel sheet by at least one pressing punch which presses on the steel sheet in such a way that it is formed between the pressing punch and the counterpart form and in particular assumes the shape of the pressing punch and the counterpart form. | 10-15-2015 |
20150306694 | SUBMERGED ARC WELDING METHOD FOR STEEL PLATE - The present invention provides a submerged arc welding method attempting to enhance toughness of a welded zone with low heat input and capable of achieving deep penetration and a sufficiently wide bead width in welding a thick material at a weld speed of 3 m/min or less. In the submerged arc welding method, a first electrode at the head in a welding direction has a wire diameter of 3.9 to 4.1 mm, two electrodes are arranged on both sides holding a weld line therebetween at the tail end in the welding direction, the wire tip positions of the two electrodes on a surface of the steel plate are arranged on the same line vertical to the weld line, and a distance W (mm) between each of the wire tip positions and the weld line is 5 to 20 mm. | 10-29-2015 |
20160045983 | METHOD OF LASER PROCESSING OF VOLATILE ALLOYS - The present invention relates to flux compositions and methods for laser processing volatile alloys. A flux composition contains a metal oxide, a metal silicate, or both; a shielding agent which forms at least one gas upon heating; and a plasma-generating agent, but not a metal fluoride. A process involves applying an energy beam ( | 02-18-2016 |
20160144440 | Welding Method for the Shielding of Hardened Wearing Elements in Hoppers, Buckets or Other Similar Equipment - The invention consists in a welding method for hardened wearing elements such as straps, retaining walls, blocks and various forms of shielding plates used in hoppers, ladles and any component that needs to be protected with hardened wearing elements, which prevents stress in the binding welded between the straps and allows joining straps with very little spacing between them so that no wearing grooves are formed. The method comprises placing two straps separated by a minimum space on the base plate to be welded; separating the straps to be welded allowing a minimum of 0.5 to 5 mm; welding with a welding bead; using discontinuous welding beads; applying the welding bead on the side edges of the straps and discontinuing the welding bead in areas close to the space between two straps. | 05-26-2016 |
20160175993 | FLUX FOR SUBMERGED ARC WELDING | 06-23-2016 |
219730100 | Including electroslag welding | 14 |
20090090699 | System and Method for Electroslag Welding Spliced Vertical Columns - A system and method for welding spliced vertical 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 columns to be spliced. A distributed control electroslag welding system, welding torch, and consumable guide tube oscillator feed provide molten flux within the shoes filling from the sump to the run-off tab. | 04-09-2009 |
20090294407 | AIR-COOLED COPPER SHOES FOR ELECTROSLAG WELDING APPLICATIONS - Adjustable articulated air-cooled copper welding shoes, capable of being controlled between 800 to 1000 degrees Fahrenheit during Electroslag welding operations, result in faster welds, smaller heat affected zone in the workpieces welded, and less base metal dilution. The shoes thus provide a smaller weld grain structure and stronger bonds in the weld fusion zone. | 12-03-2009 |
20090294408 | AIR-COOLED COPPER SHOES FOR ELECTROSLAG WELDING APPLICATIONS - Opposing, paired and positionally adjustable air cooled welding shoes, run-off tabs, and sumps affixed at the junction of workpieces to be welded with an Electroslag welding system. The air-cooled shoes are capable of being controlled between 800 to 1000 degrees Fahrenheit, resulting in faster welds, smaller heat affected zone in the workpieces welded, and far less base metal dilution. These significant results provide a smaller weld grain structure and much stronger bond in the weld fusion zone. | 12-03-2009 |
20090308846 | SYSTEM AND METHOD FOR VERTICAL MOMENT CONNECTION - A system for narrow-gap electroslag-welded moment connections welded between vertical column flanges includes vertical column doubler plates with top and bottom stiffeners and horizontal beam side plates aligned with the doubler plates to carry the moment load through the vertical support columns. An embodiment includes an elliptical radius in each side plate. Disclosure of an automated modular method for narrow-gap electroslag-welded moment connections is included. | 12-17-2009 |
20100308019 | ELECTROSLAG WELDING WITH VARIABLE BALANCE, CONSTANT POTENTIAL, ALTERNATING CURRENT, SQUARE WAVE WELDING POWER SUPPLY - A DC balanced square wave power source, controlled in a constant voltage mode, for ESW and ESW-NG welding systems and methods can be matched with variable speed wire electrode feeders, multiple guide tubes, articulated air-cooled cooper welding shoes, and multiple pass ESW welding systems, thus gaining the following advantages, namely, controlling weld bead shape, reducing base metal dilution, reducing total heat input into the parent material, and reduction or elimination of any DC magnetic field in the weld cavity. | 12-09-2010 |
20110120977 | Alloy, Overlay, and Methods Thereof - An alloy comprising about 0.5 weight percent to about 2 weight percent carbon, about 15 weight percent to about 30 weight percent chromium, about 4 weight percent to about 12 weight percent nickel, up to about 3 weight percent manganese, up to about 2.5 weight percent silicon, up to about 1 weight percent zirconium, up to about 3 weight percent molybdenum, up to about 3 weight percent tungsten, up to about 0.5 weight percent boron, up to about 0.5 weight percent impurities, and iron. | 05-26-2011 |
20110168676 | METHOD AND APPARATUS FOR WELDING WITH CURTAIN ELECTRODES AND STRIP ELECTRODES - A system and method of welding is provided where a first welding power supply provides a first welding waveform to a strip electrode for welding a work piece and a second welding power supply provides a second welding waveform to at least one curtain electrode for welding the work piece. The at least one curtain electrode is positioned adjacent to a side of said strip electrode during welding. | 07-14-2011 |
20120118859 | ELECTROSLAG WELDING WITH ALTERNATING ELECTRODE WELD PARAMETERS - Technologies related to electroslag welding are generally disclosed. | 05-17-2012 |
20130306602 | NI-BASE ALLOY WELD METAL, STRIP ELECTRODE, AND WELDING METHOD - A weld metal contains Cr: 28.0% to 31.5% by mass, Fe: 7.0% to 11.0% by mass, Nb and Ta: 1.5% to 2.5% by mass in total, C: 0.015% to 0.040% by mass, Mn: 0.5% to 4.0% by mass, N: 0.005% to 0.080% by mass, Si: 0.70% by mass or less (and more than 0%), Al: 0.50% by mass or less, Ti: 0.50% by mass or less, Mo: 0.50% by mass or less, Cu: 0.50% by mass or less, B: 0.0010% by mass or less, Zr: 0.0010% by mass or less, Co: 0.10% by mass or less, P: 0.015% by mass or less, and S: 0.015% by mass or less, the remainder being Ni and incidental impurities. | 11-21-2013 |
20140001160 | SUBMERGED ARC WELDING SYSTEM WITH PRESSURIZED FLUX DELIVERY AND WELDING TORCH | 01-02-2014 |
20140209571 | HYBRID LASER PLUS SUBMERGED ARC OR ELECTROSLAG CLADDING OF SUPERALLOYS - A method for cladding of superalloy materials. A layer of powder ( | 07-31-2014 |
219730110 | For coating | 3 |
20130140278 | DEPOSITION OF SUPERALLOYS USING POWDERED FLUX AND METAL - A method for depositing superalloy materials. A layer of powder ( | 06-06-2013 |
20130140279 | LASER RE-MELT REPAIR OF SUPERALLOYS USING FLUX - A method of repairing service-induced surface cracks ( | 06-06-2013 |
20140353285 | HIGH BORON HARDFACING ELECTRODE - Electrodes for depositing hardfacing alloys containing boron, carbon, chromium, manganese, and silicon on the surface of metal components that are subjected to high thermal and mechanical stresses. The deposited hardfacing alloys have from about 2.5 to about 14.0 atomic weight percent boron and have a hardness on the Rockwell “C” scale of at least about 65 HRC in the first layer of the weld deposit. | 12-04-2014 |
219730200 | With granular flux supply | 25 |
20090188895 | SUBMERGED ARC WELDING APPARATUS AND METHOD FOR SUBMERGED ARC WELDING - A submerged arc welding apparatus | 07-30-2009 |
20100288734 | CONTROLLED WELD POOL VOLUME CONTROL OF WELDING PROCESSES - A new method of process control for fusion welding maintains a controlled weld pool size or volume, for example in some applications a substantially constant weld pool size or volume. The invention comprises a method of linking machine and process variables to the weld pool size or volume in real time, thereby enabling constant weld pool volume control. The invention further comprises a method of using thermal inverse models to rapidly process real-time data and enable models-based control of welding processes so as to implement constant weld pool volume control. | 11-18-2010 |
20110011835 | SUBMERGED ARC WELDING SYSTEM WITH PRESSURIZED FLUX DELIVERY AND WELDING TORCH - A submerged arc welding system. In one embodiment, the submerged arc welding system includes a robot, a flux supply distal from the robot, and at least one wire supply distal from the robot. The system also includes a welding torch connected to the robot, a wire path connecting the wire supply to the welding torch, and a flux path connecting the flux supply to the welding torch. A flux delivery system is configured to move flux from the flux supply to the welding torch. At least one vent is disposed on the flux path adjacent the welding torch, to evacuate air from the flux path. | 01-20-2011 |
20110073569 | WELDING SYSTEM WITH POWER LINE COMMUNICATION - Various welding systems that provide communication over auxiliary or weld power lines are provided. The disclosed embodiments may include a multi-process welding power supply that is communicatively coupled to a pendant via an auxiliary conduit that facilitates the exchange of data and power between components of the welding system. In some embodiments, the pendant may also include auxiliary outlets that allow an operator to power auxiliary devices at the weld location. The disclosed embodiments further include a pendant with a wire spool and wire feeder drive circuitry that is configured to activate spooling during MIG welding. Embodiments are provided that also allow for bidirectional data communication over a power line in networked welding systems. | 03-31-2011 |
20110089144 | DEVICE FOR HANDLING POWDER FOR A WELDING APPARATUS - A welding device for powder welding is described, which comprises a welding head for transportation of at least one welding electrode to a welding area, and a powder transportation device for transportation of powder from a container to the welding area. The powder transportation device comprises at least a first pipe which at a first end has an opening which is arranged to be placed in the container in order to transport fluxing agent from the container. The powder transportation device comprises at least a first ejector which is connected to the second end of the first pipe and which is arranged to transport powder from the container via the first pipe using pressurized gas. | 04-21-2011 |
20110108527 | METHOD OF ARC WELDING ROOT PASS - A method for root pass welding steel plate and pipe is provided that uses pulse arc welding having a current pulse waveform exhibiting a low constant background current and fixed frequency. The welding process may be performed without a backer or backing material. | 05-12-2011 |
20110290763 | Device and Method for Powder Handling for Welding Apparatus - A welding device ( | 12-01-2011 |
20120012559 | HEAT INPUT CONTROL FOR WELDING SYSTEMS - A heat input control method for a welding system includes the step of receiving data encoding a desired heat input range having heat input values included between an upper limit and a lower limit. The method also includes the step of receiving data encoding a desired change to a level of a first weld variable of a set of weld variables. Further, the method includes determining a change to a level of a second weld variable of the set of weld variables. The determined change to the level of the second weld variable is suitable to maintain a heat input of a welding operation within the desired heat input range. | 01-19-2012 |
20120097643 | DEVICE FOR HANDLING POWDER FOR A WELDING APPARATUS - A welding device for powder welding is described, which comprises a welding head for transportation of at least one welding electrode to a welding area, and a powder transportation device for transportation of powder from a container to the welding area. The powder transportation device comprises at least a first pipe which at a first end has an opening which is arranged to be placed in the container in order to transport fluxing agent from the container. The powder transportation device comprises at least a first ejector which is connected to the second end of the first pipe and which is arranged to transport powder from the container via the first pipe using pressurized gas. | 04-26-2012 |
20120181255 | FLUX ENHANCED HIGH ENERGY DENSITY WELDING - A method of shielding a weld. The method includes melting a substrate to form a weld pool using a high energy density welding technique of plasma arc welding, laser beam welding, or electron beam welding; and delivering a flux to the weld pool to produce a slag effective to shield against atmospheric contaminants. | 07-19-2012 |
20130256276 | SYSTEM AND METHOD FOR SUBMERGED ARC WELDING - This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW. | 10-03-2013 |
20130299461 | SYSTEM AND METHOD FOR SUBMERGED ARC WELDING - This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the gas flow and the welding wire and to deliver the gas flow and the welding wire near the welding arc during SAW. | 11-14-2013 |
20130299462 | SYSTEMS AND METHODS FOR USING FLUORINE-CONTAINING GAS FOR SUBMERGED ARC WELDING - This disclosure relates generally to welding, and more specifically, to submerged arc welding (SAW). In an embodiment, a welding system includes a gas supply system configured to provide a fluorine-containing gas flow. The system also includes a wire supply system configured to provide welding wire, and a flux supply system configured to provide flux near a welding arc during submerged arc welding (SAW). The system further includes a welding torch assembly configured to receive the fluorine-containing gas flow and the welding wire and to deliver the fluorine-containing gas flow and the welding wire near the welding arc during the SAW. | 11-14-2013 |
20140339201 | FLUX SYSTEM TO REDUCE COPPER CRACKING - A granular flux formulated to reduce copper cracking in a weld bead. The granular flux forms a slag during a welding process that inhibits or prevents migration of molten copper migration through the slag. | 11-20-2014 |
20150027993 | FLUX FOR LASER WELDING - Flux compositions adapted for use in laser welding, repair and additive manufacturing applications. Flux compositions contain 5 to 60 percent by weight of an optically transmissive constituent, 10 to 70 percent by weight of a viscosity/fluidity enhancer, 0 to 40 percent by weight of a shielding agent, 5 to 30 percent by weight of a scavenging agent, and 0 to 7 percent by weight of a vectoring agent, in which the percentages are relative to a total weight of the flux composition. Also disclosed are processes involving melting of a superalloy material in the presence of a disclosed flux composition to form a melt pool covered by a layer of molten slag, and allowing the melt pool and the molten slag to cool and solidify to form a superalloy layer covered by a layer of solid slag. | 01-29-2015 |
20150041440 | SUBMERGED ARC WELDING SYSTEM WITH PRESSURIZED FLUX DELIVERY AND WELDING TORCH - A submerged arc welding system includes a robot having a first arm connected to a second arm, and at least one wire supply. A welding torch is connected to a first end of the second arm of the robot. A wire motor is mounted to a second end of the second arm of the robot. The wire motor moves wire from the wire supply along a wire path to the welding torch. The system further includes a flux supply and a flux delivery system configured to move flux from the flux supply along a flux path to the welding torch. | 02-12-2015 |
20150102016 | LASER METALWORKING OF REFLECTIVE METALS USING FLUX - Methods for laser processing of reflective metals. A reflective metal ( | 04-16-2015 |
20160023304 | METHOD FOR FORMING THREE-DIMENSIONAL ANCHORING STRUCTURES ON A SURFACE - A method including: forming a melt pool ( | 01-28-2016 |
20160144448 | TUNGSTEN SUBMERGED ARC WELDING USING POWDERED FLUX - A tungsten submerged arc welding process wherein a non-consumable electrode ( | 05-26-2016 |
219730210 | For deposition welding | 6 |
20140061165 | METHOD AND ARRANGEMENT FOR BUILDING METALLIC OBJECTS BY SOLID FREEFORM FABRICATION - This invention relates to a method and arrangement for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, wherein the deposition rate is increased by supplying the metallic feed material in the form of a wire and employing two gas transferred arcs, one plasma transferred arc for heating the deposition area on the base material and one plasma transferred arc for heating and melting the feed wire. | 03-06-2014 |
20150027994 | FLUX SHEET FOR LASER PROCESSING OF METAL COMPONENTS - A flux sheet ( | 01-29-2015 |
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