Class / Patent application number | Description | Number of patent applications / Date published |
219121450 | Welding | 24 |
20080217303 | OPTICAL FIBER FUSION SPLICE DEVICE FOR USE IN CONFINED SPACES - Optical Fiber Fusion Splice Device that includes a receiving mechanism, internal chamber, alignment mechanism and circuitry, and an optical welding module. The receiving mechanism is operable to receive a pair of optical fibers that have been prepared for splicing. An internal chamber serves to isolate the optical fibers from an external environment. An alignment circuitry and mechanism aligns the first optical fiber to the second optical fiber within the internal chamber, wherein a welding module optically welds or fuses the aligned optical fibers. This welding module may employ an arc between a pair of electrodes, or other device such as an Edison coil, to heat and fuse the optical fibers. The internal chamber may be coupled to an evacuation system or positive displacement system in order to evacuate or pump volatile or contaminant-containing gases from the internal chamber prior to fusing the aligned optical fibers. | 09-11-2008 |
20080245775 | Method of automatically detecting the wear of a welding electrode - An automated method for detecting the wear of a non-consumable electrode of an arc welding torch and for automatically replacing or remachining the electrode when it is eroded with a fresh electrode includes the following steps: a) the number of strikes performed by the electrode in question, and possibly the arc time of the electrode and the strike time for establishing the arc, is measured or counted during welding; b) the value of at least one of the wear-indicating parameters determined in step a) is compared with at least one preset respective reference value; and c) the eroded electrode is replaced with a fresh or sharpened electrode when the value of at least one of the wear-indicating parameters is equal to or exceeds at least the preset respective reference value. | 10-09-2008 |
20110163075 | TWO-ELECTRODE ARC WELDING DEVICE AND TWO-ELECTRODE ARC WELDING METHOD - A two-electrode arc welding device and two-electrode arc welding method are provided for performing welding with improved penetration performance using two non-consumable electrodes. In a two-electrode arc welding device | 07-07-2011 |
20140021174 | METHOD FOR REINFORCING WELDING TIP AND WELDING TIP - In order to extend a lifetime of a welding tip in a simple way, a surface reinforcing layer | 01-23-2014 |
20140124486 | Laser Welding Assembly And Method - A hybrid laser arc welding assembly including a gas metal arc welding torch and a laser arc welding laser head. The torch and laser head are disposed adjacent one another and aimed at targets of a pair of work pieces spaced from one another such that the melted material produced by the torch overlaps with the melted material produced by the laser head, and therefore, the torch and laser head combine to create a hybrid laser arc weld to join the work pieces. The laser head is adjustable dynamically relative to the work-pieces to optimize the hybrid laser arc weld. | 05-08-2014 |
20140190945 | PLASMA WELDING APPARATUS FOR GUIDE THIMBLE AND GUIDE THIMBLE END PLUG OF NUCLEAR FUEL ASSEMBLY - Disclosed is a plasma welding apparatus for a guide thimble and guide thimble end plug of a nuclear fuel assembly, which includes: a welding chamber ( | 07-10-2014 |
20140374391 | 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 | 12-25-2014 |
20150021301 | SYSTEM FOR CONVERTING ELECTRIC ENERGY INTO THERMAL ENERGY - A system for transferring electrical energy to thermal energy which comprises two electrodes separated by a distance along the axis joining them and able to create field lines defining a zone of influence when subjected to a potential difference, an electrical power supply device for these electrodes, which is able to provide the potential difference, and a device for triggering an electric arc between these two electrodes. The triggering device comprises a device for emitting a laser pulse, a device for focusing the pulse at N focusing points situated in the zone of influence of the two electrodes, with a peak power density of the pulse per focusing point of greater than 1 GW/cm | 01-22-2015 |
20170235053 | FUSION SPLICER | 08-17-2017 |
219121460 | Methods | 15 |
20080217304 | MEDICAL IMPLANT AND METHOD FOR THE PRODUCTION THEREOF - A medical implant such as a cardiac pacemaker or a defibrillator is assembled from a first element and a second element, which each have a surface. The first element and the second element are connected to one another in a joining step in the particular connection area of the first element and of the second element which forms at least a partial area of the particular surface. In a plasma activation step to be performed before the joining step, at least the connection area of the first element and/or at least the connection area of the second element is activated in a low-pressure plasma or in a plasma generated at atmospheric pressure. | 09-11-2008 |
20080296269 | TIG WELDING EQUIPMENT AND TIG WELDING METHODS - The TIG welding methods of the present invention include generating an electric arc between an electrode and an object to weld the object, wherein a first shielding gas including an inert gas flows toward the welded object surrounding the electrode, a second shielding gas containing an oxidative gas flows toward the welded object along a periphery of the first shielding gas, and the concentration of the oxidative gas in the second shielding gas is set such that the oxygen concentration in the welded metal portion of the welded object is within a range of 70 to 220 wt. ppm. | 12-04-2008 |
20080314877 | Plasma Keyhole Welding of Hardenable Steel - The invention describes a process for producing a weld seam ( | 12-25-2008 |
20100133241 | METHOD AND DEVICE FOR PLASMA TAP HOLE WELDING - In connection with plasma tap hole welding, in which a plasma jet ( | 06-03-2010 |
20100237049 | Preheating temperature during remelting - A method of welding a component is provided. The component is welded using a preheating temperature of the component below 500° C. and above 400° C., wherein no material is added to an area to be welded. | 09-23-2010 |
20110017712 | PLASMA WELDING PROCESS AND OUTER GAS FOR USE IN THE PLASMA WELDING PROCESS - An outer gas for plasma welding of the present invention is used in plasma welding of a stainless steel with use of a plasma welding torch in which an insert tip ( | 01-27-2011 |
20110210102 | PLASMA WELDING TORCH, AND WELDING METHOD USING PLASMA WELDING TORCH - A plasma welding torch that can be reduced in size more than in conventional cases. When an inert gas G such as argon gas is supplied to an outer circumferential space around a non-consumable electrode | 09-01-2011 |
20110226744 | Method For Regulating Energy Input of a Pulsed Arc Plasma During a Joining Process and Apparatus - The disclosure provides a method and apparatus for regulating an energy input of a pulsed arc plasma during a joining process by detecting first measurement signals for a first temporal response of emission light from an arc plasma in a first spectral range with a first photodiode, which has a sensitivity maximum at a first wavelength, detecting second measurement signals for a second temporal response of emission light from an arc plasma in a second spectral range, which is at least partially different from the first spectral range, with a second photodiode having a sensitivity maximum at a second wavelength that is different from the first wavelength, generating control signals by comparing the first measurement signals and the second measurement signals, and regulating an energy source, which is configured to provide energy in pulsed form for the arc plasma in accordance with the control signals. | 09-22-2011 |
20120145681 | PLASMA TORCH AND PLASMA-ARC WELDING METHOD - A plasma torch | 06-14-2012 |
20120261389 | HYBRID WELDING APPARATUS AND SYSTEM AND METHOD OF WELDING - A hybrid welding apparatus, and a system and method for welding at least two adjacent components having a large gap of approximately 3.0 millimeters that results in a full-penetration weld is provided. The welding system includes a hybrid welder having a defocused laser beam, an electric arc welder, and at least one bridge piece adjacent to one or more of the at least two adjacent components. The defocused laser beam and the electric arc welder are arranged and disposed to direct energy onto the at least two adjacent components to create a common molten pool operable to provide a full penetration weld to bridge the gap at a high constant weld speed, thereby joining the two adjacent components with a weld. | 10-18-2012 |
20140131325 | Method to plasma arc weld and full-position pipe weld - This invention is to plasma arc weld using a keyhole mode to build a partially-penetrated keyhole and then a melt-in mode to finally reach the full penetration before switching to the base period. The full penetration is thus established during the peak period in two stages: keyhole stage and then melt-in stage. While the keyhole stage helps reduce the heat inputs and weld puddles, the melt-in stage finishes the full penetration at reduced impacts from the plasma jets producing the desired weld bead geometry and regularity. The duration of the melt-in stage is automatically determined using arc signals to assure the full penetration. In comparison with keyhole PAW, bead geometry and regularity are significantly improved with slightly increased net heat inputs. In comparison with melt-in PAW and GTAW, the net heat input is reduced approximately forty percent. | 05-15-2014 |
20140312011 | MONITORING METHOD FOR PLASMA ARC WELDING AND PLASMA ARC WELDING DEVICE - The method of monitoring keyhole welding with a plasma arc includes the step of measuring output voltages when welding is performed with a constant current, and the step of finding peak frequencies and distributions of welding voltages by analyzing frequencies of the welding voltages which correlate to a molten weld pool (P) vibration among the output voltages measured. The method also includes the step of identifying the peak frequencies that correlate to the molten weld pool (P) vibration, and the step of comparing the identified peak frequencies with a frequency range and determining whether the welding is good or bad. Thus, whether or not good keyhole welding is carried out can be determined with excellent precision by simply comparing the peak frequency that correlates to the molten weld pool (P) vibration with the frequency range. | 10-23-2014 |
20140312012 | PLASMA ARC WELDING METHOD AND PLASMA ARC WELDING DEVICE - Provided is a plasma arc welding method for continuously welding a welding target part of a welding workpiece while forming a keyhole weld on the welding target part of the welding workpiece using a plasma arc. A pulse current is used for a welding current, and the pulse frequency of the pulse current is controlled so as to be a frequency that is synchronized with a weld pool (P) during the welding. With this approach, vibration of the weld pool during keyhole welding can be controlled so as to synchronize with the pulse frequency of the pulse current. As a result, when the plasma arc keyhole welding is performed, a stable penetration bead having a desired height can be reliably obtained without hanging or irregularity. | 10-23-2014 |
20150367455 | WELDING WIRE FOR FE-36Ni ALLOY - The invention concerns a welding wire intended for use in welding together parts of parts consisting of F3-36Ni alloy. The welding wire consists of an alloy comprising, in wt. %:
| 12-24-2015 |
20160016266 | WELDING PROCESS WIRE FEEDER ADAPTER - A welding system may include a wire feeder configured to receive power from a welding power supply. The wire feeder may also be configured to provide wire, gas flow, and electrical current flow for a gas metal arc welding (GMAW) process. Further, the welding system may include an adapter that couples to the wire feeder to provide the gas flow for an alternative welding process. | 01-21-2016 |