Class / Patent application number | Description | Number of patent applications / Date published |
219117100 | Methods | 75 |
20080210666 | Joined component, in particular a pilot boss for a force transfer device, method for manufacture of a continuous material connection and a force transfer device - A joined component, in particular a rotation symmetrical component for connecting to another second joined component into a unit for creating a continuous material, non-disengageable connection through compression welding, comprising a joined surface and a joint portion, provided at the joined surface, for contacting the other, second joined component. A recess for receiving weld bead material is provided at the joined surface around the joint portion. | 09-04-2008 |
20080290073 | Single Weld Head - A welding apparatus includes a single weld head, a weld power supply, a conductive fixture plate, a data acquisition card, and a computer. The single weld head includes one or more electrodes, one or more actuating devices in operative communication with the electrodes, and one or more force control devices in operative communication with the actuating devices. The weld head is in communication with a weld power supply. The weld power supply welds articles in accordance with a computer program running on a computer. The computer is in communication with the weld power supply, the force control device, and the data acquisition card. The computer is capable of receiving, evaluating, and storing welding data received from the data acquisition card. The apparatus further includes a switch in communication with the weld power supply, the electrodes, the conductive fixture plate, and the data acquisition card. | 11-27-2008 |
20080308533 | SPOT WELDING SYSTEM AND METHOD FOR ADJUSTING WELDING-GUN CLOSING SPEED - A spot welding system including a welding gun with an electrode pair actuated by a servo-motor, a robot carrying the welding gun or objective workpieces and operating to change the relative positions and orientations of the welding gun and the workpieces, and a gun motion controller controlling the servo-motor to actuate the electrode pair to open or close. The gun motion controller includes a motion commanding section outputting a motion command to the servo-motor in accordance with a speed set-value designating a closing speed of the electrode pair, and a set-value adjusting section automatically adjusting the speed set-value to an appropriate value. The set-value adjusting section includes a force-data obtaining section obtaining force data representing, in a time-series manner, the pressurizing force generated in the electrode pair when the servo-motor actuates the electrode pair to close in accordance with the motion command, and an appropriate-value computing section determining the appropriate value of the speed set-value based on pre-convergence transient data in the force data. | 12-18-2008 |
20090026177 | Device and Method For Controlling Welding Angle - An object of the invention is to provide a device and a method for controlling a welding angle which is capable of resolving restrictions occurred when a conventional float type welding angle control device is used to manufacture a welded pipe, and giving full play to the ability of such a float type welding angle control device, by adopting a new mechanism for supporting and adjusting a fin roll. When the welding angle is controlled by inserting the fin roll between opposing edges of a band steel at a position located in an upstream side of squeeze rolls, the fin roll is attached to a link mechanism in which two arms are coupled so as to be pivotable within a plane defined by a pipe manufacturing line direction and a perpendicular direction thereof, and positions of gripping points of the arms are changed to adjust a position of the fin roll within the plane. Not only the mechanism of the device is simplified and an installation space can be reduced, but also the usage environment of the device and burdens for the maintenance work are considerably improved. | 01-29-2009 |
20090078684 | METHOD FOR PRODUCING A DIGITAL RIGHTS FILE DESCRIPTION - The welding of a tight envelope is performed in two stages ( | 03-26-2009 |
20090090700 | JOINING METHOD - A joining method of the present invention includes conducting friction-stir-welding of members to be joined, to form a joint; and then conducting melt-welding or resistance-welding of the joint, wherein the friction-stir-welding of members to be joined is conducted while flowing an inert shielding gas, or the melt-welding or resistance-welding of the joint is conducted while applying an ultrasonic wave. | 04-09-2009 |
20090127232 | WELD ELECTRODE FOR ATTRACTIVE WELD APPEARANCE - Weld faces of electrodes for resistance spot welding are formed with a suitable area of protrusions and/or intrusions. The size, shape, and elevation or depths of the protrusions or intrusions are determined for the formation of suitable spot welds in and between metal workpieces such as aluminum or steel panels for vehicle bodies. The protrusions or intrusions are also conceived and used to form an image on at least a visible surface of the welded article to produce an attractive appearance on the surface of the welded sheet. | 05-21-2009 |
20090139966 | SEAM WELDING - A process is provided for scam welding advanced high strength steel sheets together. Respective end portions of first and second advanced high strength steel sheets are placed in overlapping contact with one another, and subjected to first and second weld passes. In the first weld pass, a seam welder including weld electrodes operate at a first-pass applied current and a first-pass pressure and are moved relative to the overlapping end portions at a first-pass carriage speed to establish a weld seam containing a weld nugget with a martensite phase. In the second weld pass, the weld electrodes operate at a second-pass applied current and a second-pass pressure and move relative to the weld seam at a second-pass carriage speed selected to fuse microcracks, lap openings, and porosity in the seam, relieve the residual stress in the joint, and temper the martensite phase of the weld nugget, and thereby form a weld joint. | 06-04-2009 |
20090145885 | METHOD FOR SOLDERING TWO ELEMENTS TOGETHER USING A SOLDER MATERIAL - This method for soldering or hybridizing two components ( | 06-11-2009 |
20090152245 | METHOD TO ESTIMATE THE EFFECT OF WELD LOCATION ON WELD STRENGTH - A method to diagnose a failed weld in a welding process includes monitoring a location of a weld created on a plurality of work pieces, diagnosing the weld as a failed weld based on said location with respect to a closest edge of one of the work pieces, and identifying said failed weld based on the diagnosing. | 06-18-2009 |
20090184093 | HIGH TEMPERATURE FINE GRAIN ALUMINUM HEATER - An aluminum heated substrate support suitable for use in high temperature substrate processing systems and method for fabricating the same are provided. In one embodiment, an aluminum heated substrate support can include an aluminum body, a stem coupled to the body and a heating element disposed in the body. The body has an average grain size less than about 250 μm. In some embodiments, the stem to body joint is a fully penetrated lap weld that promotes service life of the substrate support. | 07-23-2009 |
20090250441 | Bolt hole repair technique - A method of hole defect repair includes removing one or more defects at or near a desired hole in a part by removing a portion of the part proximate the desired hole in a series of chain link patterns, and welding a filler material to the part after removing the chain link pattern portion of the part. | 10-08-2009 |
20090250442 | JOINING OF DIFFICULT-TO-WELD MATERIALS - The present invention discloses a process for joining materials. The process can include providing a first component with a first joint face and a second component with a second joint face. The first component, second component, and bonding layer can be assembled such that the first joint face is oppositely disposed from the second joint face with the bonding layer located at least partially therebetween. Heat can be applied to the first joint face and the second joint face with the bonding layer therebetween. In this manner, wetting and possibly slight dissolving of the first joint face and the second joint face can be afforded, with at least part of the bonding layer being vaporized. In addition, the first joint face can come into intimate contact with the second joint face and form a bond interface, with the first component being bonded to the second component across the bond interface. | 10-08-2009 |
20090261077 | HEAT TREATMENT HOLDER AND HEAT TREATMENT APPARATUS AND METHOD - The object of the present invention is suppression of a cost increase of a heat treatment holder as well as achievement of equalization of heater output and improvement of thermal efficiency by broadening the selection scope of materials of the heat treatment holder (particularly, materials of the resistance heating element). In the present invention, in the case of performing heat treatment on an object to be treated, as a heat treatment holder that holds the object to be treated and heats the object to be treated by undergoing resistance heating by carrying electric current from an external source, one is used that is formed by a resistance heating material having a specific resistance higher than a base material of the resistance heating element being mixed in the base material. | 10-22-2009 |
20090294411 | SYSTEM FOR AND METHOD OF PROJECTION WELD-BONDING WORKPIECES - A system for and method of projection weld-bonding a plurality of workpieces, includes the steps of securing at least one adhesive layer having a plurality of projections embedded therein intermediate the workpieces, and engaging the workpieces with a resistance welding apparatus such that only the projections fuse to form the weld pool, and the layer cures to form an adhesive seal around the welds, together the adhesive layer and projections cooperatively forming a reinforced joint. | 12-03-2009 |
20090302009 | ELECTRODE FOR SPOT WELDING - Spot welding electrodes with generally dome shaped welding faces are provided with surface features for welding both aluminum alloy sheet assemblies and steel sheet assemblies. A raised circular plateau is formed on the central axis of the dome and, in one embodiment, a suitable number of round bumps are formed in concentric spacing from adjacent the circumference of the plateau toward the circular edge of the welding face. For welding steel workpieces the plateau mainly serves as the engaging feature of the electrode. Both the plateau and concentric bumps are used in penetrating light metal surfaces for suitable current passage. In another embodiment, the domed surface is shaped with concentric terraces for engagement with the workpieces. | 12-10-2009 |
20090302010 | Resistance welding method and welded structure - Two or more superposed plates and a thin plate are resistance-welded by: placing, on the two or more superposed plates, the thin plate whose thickness is less than each of the two or more superposed plates; placing a welding auxiliary member on the thin plate; making one of a pair of electrodes abut on the welding auxiliary member, and making the other of electrodes abut on a bottom surface of a lowest plate of the two or more superposed plates; and resistance-welding the two or more superposed plates and the thin plate to one another by the pair of electrodes. | 12-10-2009 |
20100032415 | Repair Methods Involving Conductive Heat Resistance Welding - Repair methods involving conductive heat resistance welding includes repairing a crack of a gas turbine engine component using a conductive heat resistance welding technique and a welding technique other than conductive heat resistance welding. | 02-11-2010 |
20100044348 | METHOD AND APPARATUS FOR INSTALLING AN INSULATION MATERIAL TO A SURFACE AND TESTING THEREOF - A method and apparatus for installing an insulation material to a surface by inserting a nozzle and a neck of a welding gun through a channel in an insulation material, positioning the insulation material on the surface to be insulated using the welding gun, firmly pushing the welding gun into the channel of the insulation material until the nozzle of the welding gun, an anchor embedded in the insulation material and the surface are in contact, welding the anchor of the insulation material to the surface with the welding gun, and removing the nozzle and the neck of the welding gun from the channel in the insulation material. A method and apparatus for testing the integrity of a weld between an anchored insulation material, a surface and a nozzle of a welding gun. A special tool for testing the integrity of the weld between the anchored insulation material and a surface. | 02-25-2010 |
20100051591 | OPERATION CONTROLLER AND CONTROL METHOD OF ELECTRODE IN ELECTRIC RESISTANCE WELDING - Provided are an operation controller of an electrode and a control method therefor in electric resistance welding, which are capable of automatically inhibiting advancement of the electrode when an operating time period of a supply rod becomes abnormally longer. A part ( | 03-04-2010 |
20100072177 | PRESSURE VESSEL FABRICATING METHOD - Rib plates are provided in an interior of a box-shaped pressure vessel, and the rib plates are joined to inner surfaces of walls of the pressure vessel in such a state that the rib plates are kept erected by welding being applied to the walls of the pressure vessel from the outside thereof. | 03-25-2010 |
20100084380 | CONDUCTIVE STUD WELDING - A method for welding a first workpiece with a joining element, wherein the joining element and the first workpiece consist at least partially of a metal, includes moving the joining element relative to the first workpiece during welding and at the same time pressing the joining element against the first workpiece. This method for welding a joining element with a material permits a reliable firmly-bonded connection between joining element and workpiece, when the workpiece consists of a composite material or has low rigidity, and is achieved by generating an electrical current between workpiece and joining element during mechanical contact of the joining element with the first workpiece. | 04-08-2010 |
20100102038 | EXTERNAL CORROSION PROTECTION FOR UNDERGROUND PIPES - A method for establishing or restoring electrical continuity between metal pipe sections in pipeline rehabilitation according to embodiments of the present invention includes, from an inside of a pipe having first and second pipe sections, removing a layer of the first pipe section at a first location, removing a layer of the second pipe section at a second location, electrically connecting a spanner at the first location and the second location, deploying a tubular liner along the inside of the pipe, injecting grout between the tubular liner and the inside of the pipe, and distributing the grout between the tubular liner and the inside of the pipe, wherein a first radial distance from the inside of the pipe to the innermost extent of the spanner is less than or equal to a second radial distance from the inside of the pipe to the tubular liner. | 04-29-2010 |
20100126970 | WELDING APPARATUS AND WELDING METHOD - A welding apparatus includes a first electrode tip; a second electrode tip opposing the first electrode tip; and an electrically conductive part which is provided so as to be freely interposed between the second electrode tip and a work and ensures electrical conduction between the second electrode tip and the work when the electrically conductive part is interposed between the second electrode tip and the work, the electrically conductive part including an electrically conductive member one side of which opposes the work with a presence of a void space from the work when the electrically conductive member is interposed between the second electrode tip and the work, and against which the second electrode tip is abutted on another side thereof, and a pair of electrically conductive abutment members which are provided integrally with the electrically conductive member in such a manner as to extend toward the work, and distal ends of which are abutted against the work, a position of abutment of the electrically conductive member against the second electrode tip being positioned between the pair of abutment members. | 05-27-2010 |
20100140228 | Resistance welding quality determination method and resistance welding quality determination apparatus - A resistance welding quality determination method comprises: a step of detecting a voltage value applied to a welding electrode of a resistance welding machine; a step of detecting a current value supplied to the welding electrode; a step of calculating a welding resistance value based on the voltage value and the current value; a step of correcting the welding resistance value based on a change amount of a contact resistance value between the work and the welding electrode during welding of a work; and a step of determining welding quality of the work based on a corrected welding resistance value obtained by correcting the welding resistance value. | 06-10-2010 |
20100163532 | METHOD OF DETECTING DUST AND METHOD OF PREVENTING ERRONEOUS DETERMINATION OF DUST DETECTION - A method of detecting dust includes: a first step of monitoring a resistance value welding and determining if a variation amount of the resistance value per unit time is equal to or more than a first threshold; a second step of monitoring the resistance value after the first step and determining if a variation amount of this resistance value per unit time is equal to or less than a second threshold; a third step of determining if a difference value between a resistance value for calculating the variation amount equal to or more than the first threshold and a resistance value for calculating the variation amount determined equal to or less than the second threshold is equal to or more than a third threshold; and a fourth step of determining that dust is generated when the difference value is equal to or more than the third threshold. | 07-01-2010 |
20100176094 | HEATER COIL FOR GAS SENSOR, DETECTING ELEMENT FOR GAS SENSOR, CATALYTIC COMBUSTION GAS SENSOR, AND MANUFACTURING METHOD OF CATALYTIC COMBUSTION GAS SENSOR - A lead portion ( | 07-15-2010 |
20100243614 | METHOD OF REPAIRING HOLES USING CONDUCTIVE HEAT RESISTANCE WELDING - A method of repairing a hole in a work piece includes mechanically constraining donor plates against a work piece. Constraint plates keep donor plates flush against the work piece during conductive heat resistance welding. By constraining the donor plates, the molten mixture produced by conductive heat resistance welding cannot escape the hole and a weldment substantially free of voids is formed. | 09-30-2010 |
20100243615 | WELDING APPARATUS AND METHODS - A welding apparatus comprises a first electrode; a second electrode opposite the first electrode, the second electrode being movable toward and away from the first electrode; a third electrode; a fourth electrode opposite the third electrode, the fourth electrode being movable toward and away from the third electrode; a first transformer winding adapted to be coupled to a power source; a second transformer winding electromagnetically coupled to the first transformer winding and the first and second electrodes; and a third transformer winding electromagnetically coupled to the first transformer winding and the third and fourth electrodes; the first transformer winding substantially evenly transferring current to the second transformer winding and the third transformer winding when energized by the power source, such that the first and second electrodes are energized substantially simultaneously with the third and fourth electrodes. | 09-30-2010 |
20100243616 | RESISTANCE WELDING METHOD AND RESISTANCE WELDING APPARATUS - A resistance welding apparatus includes a welding gun having a first electrode tip serving as a first welding electrode, a second electrode tip serving as a second welding electrode, and a current branching electrode. The current branching electrode has an annular shape and is disposed in surrounding relation to the first electrode tip. The first electrode tip and the current branching electrode abut against a thinnest workpiece disposed on an outermost side of a stacked assembly that is resistance-welded by the resistance welding apparatus, and have opposite polarities to each other. When an electric current is passed from the first electrode tip to the second electrode tip and through the stacked assembly, a branched electric current flows from the first electrode tip to the current branching electrode. | 09-30-2010 |
20100258536 | FORMING AND RE-FORMING WELDING ELECTRODES WITH CONTOURED FACES - A method is disclosed for using welding electrodes with a spherically-domed welding face having concentric contoured features formed into the face for better contact with workpiece surfaces. The concentric contoured features may be initially formed by rotating a cutting tool with a contoured cutting edge, the cutting edge being in engagement with the electrode face. A similar practice may be followed to re-create the weld face surface geometry if it becomes eroded or malformed during welding use. A suitable tool may have a blade-like geometry, with a mounting portion for supporting and positioning the tool in a rotating holder and a cutting edge. The cutting edge may have a contour complementary to that of the weld face and extend at least from the center of the weld face to at least the radial extent of the concentric contoured features. | 10-14-2010 |
20100270272 | METHOD AND MONITORING DEVICE FOR WELDING BY MEANS OF A POSITIONING DEVICE - In a method and device for automated welding using a positioning device, in particular a welding robot, a welding pose is occupied by the positioning device in a regulated manner, and the welding pose is flexibly held during the closing of an electrode holder, during the welding process and/or during the opening of the electrode holder. | 10-28-2010 |
20100288737 | SYSTEM FOR DETECTING WELD NUT ORIENTATION - A weld gun system for detecting the orientation of a weld nut relative to the metallic component to which it is to be welded prior to welding is disclosed. The system includes a lower electrode having a weld location pin, an upper electrode having a central circular recess formed therein, a fluid supply fluidly connected to the central circular recess of the upper electrode, and a pressure switch also fluidly connected to the central circular recess of the upper electrode. Once the weld nut is captured between the electrodes the fluid flows from the fluid supply into the central circular recess of the upper electrode. If the weld nut is in proper orientation the fluid continues to flow to the pressure switch and the weld occurs. If the weld nut is not in proper orientation the fluid does not flow to the pressure switch but is instead vented from the central circular recess and the weld does not occur. | 11-18-2010 |
20100326965 | SEAM WELDING APPARATUS AND SEAM WELDING METHOD - A seam welding apparatus and a seam welding method perform a seaming process on workpieces of various shapes having flange sections, by preventing a welding track formed by upper and lower rotary electrodes from becoming displaced from a welding reference line established on the flange section. The seam welding apparatus includes two rotary electrodes for gripping the flange section therebetween while seam-welding the flange section, a support for synchronizing movements of the two rotary electrodes with each other in a widthwise direction of the flange section, a turning mechanism for pressing at least one of the two rotary electrodes toward the workpiece body, a roller that abuts against an end face of the flange section, and roller adjusting means for positionally adjusting the roller. | 12-30-2010 |
20110079587 | WELDING HEAD FOR A MACHINE FOR THE FORMATION OF METAL MESH, RELATIVE WELDING METHOD AND MACHINE FOR THE FORMATION OF METAL MESH USING SAID WELDING HEAD - A welding head for the formation of a metal mesh includes longitudinal wires ( | 04-07-2011 |
20110094999 | APPLICATION OF SURFACE RELIEF TO SPOT WELDING ELECTRODES - The workpiece-contacting surface of the spot welding electrode may be suitably modified to incorporate a desired shape or form, generally comprising a depressed region outlining a recognizable shape, to form aesthetically-pleasing or functional features in the surface of a workpiece during resistance spot welding. Methods for creating the desired form in the spot welding electrode including abrasion, upsetting, and electrical discharge machining are disclosed. Preferably the electrode face is shaped and subsequently redressed during welding operations at the welding station. | 04-28-2011 |
20110155701 | APPARATUS AND METHOD FOR CONSOLIDATION WELDING - The present application discloses an apparatus for consolidation welding of an electrical conductor, in particular to an electrical terminal, preferably for resistance-monitored circuitry in a motor vehicle, having a bottom welding tool, on which a conductor section to be consolidated can be arranged, as well as three movable welding tools, whereby with a movable welding tool, which has two translational degrees of freedom, a width of the conductor section to be consolidated can be variably adjusted with reference to the bottom welding tool, and the other two movable welding tools can be moved in such a way that they seal off a compression chamber delimited by the width of the conductor section to be consolidated in a direction of its perimeter. | 06-30-2011 |
20110210098 | CONTROL OF A WELDING DEVICE - A method for operating a welding device ( | 09-01-2011 |
20110215073 | Method and device for mirrors position adjustment of a solar concentrator - The present invention consists of developing a technology with different processes to realize an optimal solar approach using a solar concentrator where distance screws are used that, when moving, allow the positioning of the mirrors whereby the reflected solar beam is directed to a focal point; the advantage of these processes is that each movement of the screws involves adjusting the position of all the neighboring mirrors, which allow a perfect alignment and adjustment of the mirrors. | 09-08-2011 |
20120006793 | SPINAL CORD STIMULATION PADDLE LEAD AND METHOD OF MAKING THE SAME - In one embodiment, a method of fabricating an implantable stimulation paddle comprises: providing a sheet of conductive material coupled to a first insulative layer; laser removing portions of the conductive material to form a pattern of conductive material, the pattern of conductive material including a plurality of isolated metal traces; providing a second insulative layer over the pattern of conductive material so that the pattern of conductive material is interposed between the first and second insulative layers; and exposing portions of the metal traces to form electrodes on the paddle for delivering electrical stimulation. | 01-12-2012 |
20120006794 | METAL CONNECTING METHOD AND METAL CONNECTING DEVICE - [Problem] To provide a metal connecting method and a metal connecting device to prevent a shot-circuit between the core wire and the shield portion by preventing the insulating inner coat from melting, and to surely connect the shield portion and the conductive member to each other. | 01-12-2012 |
20120012562 | METHOD FOR MACHINING WORKPIECE - A method for machining at least one workpiece with multiple process includes providing a positioning assembly and at least two machining devices, positioning the at least one workpiece on the positioning assembly, positioning the positioning assembly on one of the at least two machining devices and machining the at least one workpiece, and transferring the positioning assembly together with the at least one workpiece on other different machining devices for undergoing different machining processes. | 01-19-2012 |
20120018408 | METHOD FOR MONITORING AND MAINTAINING A RESISTANCE WELDING APPARATUS - A method of monitoring and maintaining a weld cap which is executing successive resistance welds on a plurality of workpieces includes measuring a first weld indentation formed during a first resistance weld and measuring a second weld indentation formed during a second resistance weld. The measured first and second weld indentations are compared with a severe threshold. If either of the measured first or second weld indentations is greater than the severe threshold, an abnormal condition is signaled. The method may include tip dressing the weld cap based upon the signaled abnormal condition. The method may further include determining a degradation rate between the first resistance weld and the second resistance weld. The degradation rate is the time differential between the measured first and second weld indentations, and either a first or a second tip dressing schedule is chosen based upon the determined degradation rate. | 01-26-2012 |
20120024826 | METHOD FOR WELDING TWO COMPONENTS - A method for welding two components is disclosed. In an embodiment, the method includes the following process steps. The two components are positioned such that the joining surfaces are opposite each other, at a short distance from each other. A high-frequency electrical current is conducted through the two components, heating the components at least in the region of the joining surfaces. The two components are pressed against each other such that the two joining surfaces are welded together. | 02-02-2012 |
20120074104 | RESISTANCE WELDING METHOD AND DEVICE THEREFOR - Disclosed are a resistance welding method for welding a stack of three or more works and a device therefor. A stack is formed in such that the thinnest work having the smallest thickness among the works is placed in the outermost position. The stack is held between a first welding electrode and a second welding electrode. A pressing member is brought into contact with a location of the thinnest work different from the location with which the first welding electrode is in contact, and the pressing member is caused to press the stack from the thinnest work side. In a state that the pressing force exerted on the stack by the first welding electrode and the pressing member is balanced with the pressing force exerted on the stack by the second welding electrode, current is applied between the first welding electrode and the second welding electrode. | 03-29-2012 |
20120132624 | ELECTRIC RESISTANCE WELDING DEVICE, ELECTRODE THEREFOR, AND WELDING METHOD - A device is provided in which a pressing electrode ( | 05-31-2012 |
20120152910 | WELDING GROUND CONNECTION SYSTEM AND METHOD - A grounding system is provided for welding applications. The system comprises a pair of contacts that are brought into close grounding contact with a workpiece, and a measurement circuit coupled to the contacts. The contacts may be urged into intimate contact with the workpiece by a biasing structure that pulls the contacts tightly against the workpiece. The measurement circuit may include a center-tap transformer having a secondary coupled to a ground lead and to the contacts. A primary winding of the transformer is coupled to an oscillator that executes a measurement test. The system may provide an indication of the quality of the ground in the form of an operator perceptible notification, a digitized value, or any other suitable form. | 06-21-2012 |
20120152911 | AUTOMATED ASSEMBLY AND WELDING OF STRUCTURES - A system for automated assembly and welding is disclosed. The system includes a pallet for receiving incoming workpieces; a workpiece holder having a plurality of electromagnets; a handling robot configured to transport incoming workpieces from the pallet to the workpiece holder; and a controller in communication with the workpiece holder and the handling robot. The controller is configured to determine an orientation of a workpiece positioned on the workpiece holder, and to selectively adjust an activation state of one or more electromagnets of the workpiece holder based upon the orientation of the workpiece. A method of assembling and welding workpieces is also disclosed. | 06-21-2012 |
20120168409 | Method and Arrangement for the Operation of Welding Controllers - A resistance welding device is disclosed in which one and the same operator control device can be used to flexibly operate a plurality of welding controllers simultaneously or a plurality of operator control devices can be used to flexibly operate only one and the same welding controller simultaneously. | 07-05-2012 |
20120181256 | WELDING METHOD AND APPARATUS - A method and an apparatus for joining first and second sheet metal parts includes a support where the first and second parts are positioned with an edge of the second part surrounded by a beading flange of the first part. A joining electrode is positioned adjacent to the beading flange and a counter-electrode is positioned adjacent to the second part. An abutment of a tong-type welding apparatus in placed in contact with the support, and the joining electrode and the abutment are urged toward one another to press or clamp the beading flange between the joining electrode and the support. An electric current is applied to the beading flange using the joining electrode and the counter-electrode to weld the parts together. | 07-19-2012 |
20120217227 | METHOD OF INTRODUCING COMPRESSIVE STRESS IN A WELDED JOINT - A method of introducing compressive stress in a weld joint having at least one weld toe is provided. The method includes the step of covering the weld toe of the welded joint with a resistance wire. The method also includes the step of heating the weld toe by the resistance wire, where the weld toe is heated to a selected temperature. The method includes the step of maintaining the weld toe at the selected temperature for a selected amount of time. The method includes the step of removing the resistance wire from the weld toe. The method includes the step of quenching the weld toe with a cooling medium. Compressive stress is introduced to the weld toe during quenching. | 08-30-2012 |
20120234799 | WELDING ELECTRODE AND METHOD OF FORMING A RESISTANCE SPOT WELD JOINT - A welding electrode includes an electrode holder and an electrode cap removably attached to the holder and having a central longitudinal axis. The cap includes a body having an end, and a welding surface that is substantially smooth and free from any grooves defined therein, and has a first diameter of from about 7 to 10 mm, a first radius of curvature, and a second radius of curvature that is different from the first radius. The cap includes a skirt portion extending away from the body and configured to bear against the holder. The skirt portion has a first face that is substantially parallel to the axis and spaced apart from the surface. The body has a second face interconnecting the first face and the surface, and the body tapers from the first face to the surface. A method of forming a resistance spot weld joint is also disclosed. | 09-20-2012 |
20120292293 | METHOD OF MANUFACTURING AN INFLATOR - A method of manufacturing an inflator comprises the following steps: Providing a casing ( | 11-22-2012 |
20120318774 | Process For Friction Welding Blades To The Drum Of An Axial Compressor And A Corresponding Device - The present disclosure provides a process and a device for the orbital friction welding of blades to the drum of an axial compressor. The process consists of holding the drum on a cradle via an indexing table, the cradle being able to pivot and vertically movable so as to present different regions of its outer surface parallel to the plane of orbital motion of the blade. The blade is held in the orbital motion device by a clamping device. The inner surface of the drum is braced by supports carried by a core fixed to the cradle. The drum comprises a series of protrusions which have a blade-shaped cross section. These protrusions form faying surfaces for the blades. The blades have a plate to ensure they are satisfactorily clamped by the clamping device. | 12-20-2012 |
20120325782 | METHOD AND SYSTEM FOR DETERMINING WELDING SEQUENCES - A system for determining a welding sequence is disclosed. The system may have a welding sequence generator configured to create an initial population of welding sequences based on a user-generated constraint. The system may also have a welding simulator configured to simulate welding for at least one welding sequence in the initial population of welding sequences to model distortion for the at least one welding sequence. The welding sequence generator may be further configured to receive the distortion for the at least one welding sequence in the initial population from the welding simulator, determine whether a merit value derived from at least the distortion for the at least one welding sequence satisfies one or more predetermined criteria, output the at least one welding sequence as a potential welding sequence if the merit value satisfies the predetermined criteria. | 12-27-2012 |
20130062319 | HEAT PIPE WATERLESS RESISTANCE WELDING ELECTRODE - An apparatus for resistance welding with a welder includes a heat pipe including a hollow tube and a weld electrode fitted around a portion of the heat pipe. The weld electrode and heat pipe are conductively coupled to conduct heat across an inner surface of the weld electrode. | 03-14-2013 |
20130082033 | METHODS OF MANUFACTURING LARGE-AREA SPUTTERING TARGETS USING INTERLOCKING JOINTS - In various embodiments, joined sputtering targets are formed at least in part by spray deposition of the sputtering material and/or welding. | 04-04-2013 |
20130153544 | WELDING METHOD AND WELDING DEVICE - A resistance welding device is provided with a lower tip and an upper tip that serve as welding tips, and pressing rods that serve as pressing members. The upper tip and the pressing rods press a stacked body, which is to be welded, from the metallic plate side, which is the outermost member of the stacked body. The lower tip presses the stacked body from the lowermost metallic plate side. In this state, and electric current is conducted from the upper tip to the lower tip. | 06-20-2013 |
20130186869 | COUPLER INSTALLATION DEVICE - A device comprises a frame, a plurality of fingers, and an integrated slide hammer to drive a coupler onto a first pipe. The device may drive the coupler backwards onto a second pipe. The device may position the coupler for fusion without having to remove the device for the backward driving of the coupler. The device may be used above ground or in a trench. | 07-25-2013 |
20130200048 | WELD FACE DESIGN FOR SPOT WELDING - A welding electrode for use in engaging an aluminum alloy workpiece during a spot welding process has a weld face that includes a base surface and a plurality of circular ridges that project outwardly from the base surface. The circular ridges are blunted, and their presence on the weld face provides the first welding electrode with several useful capabilities, including the ability to establish better mechanical and electrical contact with the aluminum alloy workpiece. | 08-08-2013 |
20130327745 | RESISTANCE SPOT WELDING MANUFACTURE AND METHOD OF FORMING SAME - A method of forming a resistance spot welding manufacture includes sandwiching a third metal layer between first and second metal layers to form a workpiece. The second layer has a surface defining an embossed region. The first layer has a first thickness, the third layer has a third thickness, and the second layer has a second thickness that is less than the first and third thicknesses so that a ratio of the first thickness to the second thickness is greater than about 2:1. The method includes positioning the workpiece between a first and second electrode so that the workpiece is disposed in electrically-conductive relationship with the first and the second electrodes, and applying an electrical current through the first electrode to concurrently melt the first and third layers and the surface at the embossed region to join the first and second layers to the third layer and form the manufacture. | 12-12-2013 |
20140124485 | RESISTANCE SPOT WELDING METHOD FOR A LAP-JOINT OF MULTI-METAL SHEETS - A resistance spot welding method for a lap joint multi-metal sheets which may improve the welding efficiency and nugget quality comprises: coating a joining zone of one of two mutually facing surfaces of two adjacent metal sheets with an active agent with high resistivity to form a welding region, and clamping the welding region with an upper welding electrode and a lower welding electrode and providing an electric current into the welding region. The active agent with high resistivity generates high heat energy to melt the joining zone and join the two adjacent metal sheets. The active agent with high resistivity has a resistivity much greater than a resistivity of each of the two metal sheets, and the active agent with high resistivity consists of multi-component powders and an organic solvent. | 05-08-2014 |
20140175065 | Welding-Current Control Method of the Resistance Welding Machine and Welding-Current Control Device - In spot welding, the condition tolerance for applying a large current in a short time into an aluminum alloy plate or the like is narrow, and also nugget crack sometimes occurs in spot welding. In the case of a mild steel plate, the expulsion sometimes occurs, and thereby a poor weld portion is formed. Due to a pickup removal operation from an electrode tip, the operating ratio is reduced. Here, a PAM control method is employed for raising or dropping a rectified and smoothed voltage E | 06-26-2014 |
20160028294 | MANUFACTURING METHOD FOR SEGMENT COIL - A manufacturing method for a segment coil according to the invention includes forming an assembled wire by bundling a plurality of element wires, forming a stranded wire by twisting the assembled wire, forming a rectangular conductor by rolling the stranded wire, and forming a segment coil by cutting the rectangular conductor into a given length and bending the cut rectangular conductor. Before the rectangular conductor is bent, the plurality of element wires is fastened at a position where the coil end portion of the segment coil is formed. | 01-28-2016 |
20160136752 | PROJECTION BOLT WELDING METHOD - Provided is a projection bolt welding method, which involves welding a projection bolt to a steel sheet component by electric resistance welding. The projection bolt includes a shank, a circular enlarged diameter portion, and a welding projection including an initial fusion portion with a tapered portion and a main fusion portion. A ratio of a volume of the initial fusion portion to a volume of a portion of the steel sheet component having the same diameter as a diameter of the initial fusion portion is selected, or a ratio of a circular area of the initial fusion portion to a sheet thickness of the steel sheet component is selected. | 05-19-2016 |
219118000 | Particular material (e.g., dissimilar, aluminum) | 10 |
20090065484 | Welding polymeric panels to metal surfaces - A joining portion of a polymeric component, such as a vehicle door panel, may be welded (for example, a spot weld) to a metal component, such as a mating vehicle panel, using a molded-in-place metallic welding insert. The welding insert is shaped to provide welding surfaces at both surfaces of the joining portion of the plastic component and to conduct a welding current between the surfaces. When the workpieces are assembled for welding, opposing spot welding electrodes bear against the outer surfaces of the metal part and the metal insert in the plastic part. A spot welding operation produces a weld nugget between the facing surface of the metal part and the metal insert anchored in the plastic part. Continuous seam welds or a series of stitch seam welds may be made using suitably shaped welding inserts. | 03-12-2009 |
20090272721 | Athmosphere-Controlled Bonding Apparatus, Bonding Method, and Electronic Device - In a bonding apparatus for bonding under pressure a pressure-bonding portion, the concentration of water in a pressure-bonding portion atmosphere inside the apparatus is set smaller than that in an atmosphere outside the apparatus, thereby enabling pressure bonding under low-temperature and low-pressure conditions. In this case, the amount of adsorbed water on each surface of a bonding metal terminal and a to-be-bonded metal terminal forming the pressure-bonding portion is set to 1×10 | 11-05-2009 |
20100044349 | METHOD OF WELDING ALUMINUM SHEETS - Disclosed herein is a method of welding aluminum sheets, including: supplying aluminum sheets overlapping each other between an upper electrode and a lower electrode; supplying thin metal sheets plated on both sides thereof with nickel (Ni) between the upper electrode and an upper aluminum sheet and between the lower electrode and a lower aluminum sheet, respectively; and supplying power to the upper and lower electrodes and then welding the aluminum sheets. | 02-25-2010 |
20100176095 | METHODS AND DESIGNS FOR FORMING JOINTS BETWEEN METALLIC MEMBERS - Disclosed are methods and structures for joining metallic members. A welding material can be used between two metallic members that comprise different metals. The different metals can normally form brittle intermetallic compounds when welded to one another, and the welding material can inhibit the formation of the brittle intermetallic compounds. | 07-15-2010 |
20100258537 | WELDING LIGHT METAL WORKPIECES BY REACTION METALLURGY - Aluminum alloy workpieces and/or magnesium alloy workpieces are joined in a solid state weld by use of a reactive material placed, in a suitable form, at the joining surfaces. Joining surfaces of the workpieces are pressed against the interposed reactive material and heated. The reactive material alloys or reacts with the workpiece surfaces consuming some of the surface material in forming a reaction product comprising a low melting liquid that removes oxide films and other surface impediments to a welded bond across the interface. Further pressure is applied to expel the reaction product and to join the workpiece surfaces in a solid state weld bond. | 10-14-2010 |
20100282718 | WELDING ASSEMBLY AND ASSOCIATED METHOD FOR WELDING AND HEAT TREATING METALS AND METAL ALLOYS - A welding assembly including a current generator, a first electrode electrically coupled to the current generator, the first electrode including a first engagement surface, and a second electrode electrically coupled to the current generator, the second electrode including a second engagement surface and defining a recess in the second engagement surface. | 11-11-2010 |
20120292294 | CLADDING MATERIAL FOR LEADS AND METHOD OF WELDING CLADDING MATERIAL FOR LEADS - A cladding material for a lead capable of inhibiting foreign matter from remaining on a surface can be obtained. The cladding material ( | 11-22-2012 |
20140151342 | 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. | 06-05-2014 |
20140246408 | METHOD OF DIRECT RESISTANCE WELDING - SELF BRAZING OF ALUMINUM TO MOLYBDENUM PIN - A direct welding process for joining a current collector to a terminal pin in the construction of electrochemical cells is described. The resistance welding process utilizes increased current combined with an applied force to bond dissimilar metals with a melting temperature differential of preferably more than 500° C. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices. | 09-04-2014 |
20160008912 | CURRENT SCHEDULE FOR OPTIMIZED REACTION METALLURGICAL JOINING | 01-14-2016 |