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432results about "Welding electrode features" patented technology
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Virtual reality pipe welding simulator
A simulator facilitates virtual welding activity of pipe and open root weld joints. The simulator may include a logic processor based system operable to execute coded instructions for generating an interactive welding environment that emulates welding activity on a section of virtual pipe having at least one virtual weld joint. It also includes a display connected to the logic processor based system for visually depicting the interactive welding environment, wherein the display depicts the section of virtual pipe. A mock welding tool is provided for performing virtual welding activity on the at least one weld joint in real time where one or more sensors are adapted to track movement of the input device in real time for communicating data about the movement of the input device to the logic processor based system.
Owner:LINCOLN GLOBAL INC
Plasma processing device, plasma torch and method for replacing components of same
InactiveUS6320156B1Simplifies taskAvoid connection failurePlasma welding apparatusWelding/cutting media/materialsCouplingTorch
The object is to facilitate replacement of consumable parts, such as the electrode, nozzle, or the like, in a plasma torch, whilst suppressing any increase in structural complexity or cost. An electrode 103, insulating guide 105 and nozzle 107 are fit together installed in a retainer cap 113. By means of O-rings 193, 195, 197, the electrode 103, insulating guide 105, nozzle 107 and retainer cap 113 are coupled together by a coupling force which allows the components to be pulled apart and separated manually. By attaching the retainer cap 113 to the torch main unit and detaching the retainer cap 113 from same, the electrode 103, insulating guide 105 and nozzle 107 can be attached and detached to and from the torch main unit, simultaneously.
Owner:KOMATSU LTD
Gas-Cooled Plasma Arc Cutting Torch
ActiveUS20080217305A1Dampening motionPlasma welding apparatusWelding/cutting media/materialsTorchEngineering
A method and apparatus for a gas-cooled plasma arc torch. Components of the torch can include an electrode, nozzle and a shield, each of which can be gas-cooled. The nozzle can be disposed relative to the electrode and can include a generally hollow conductive body and a cooling gas flow channel defined by at least one fin disposed about an exterior surface of the body, the body providing a thermal conductive path that transfers heat between the nozzle to the cooling gas flow channel during operation of the torch. The shield can be disposed relative to the nozzle and can include a generally hollow conductive body and a cooling gas flow channel defined by at least one fin disposed about an exterior surface of the body, the body providing a thermal conductive path that transfers heat between the shield to the cooling gas flow channel during operation of the torch.
Owner:HYPERTHERM INC
Plasma torch with corrosive protected collimator
ActiveUS20070084834A1Welding/cutting media/materialsWelding electrode featuresTorchPlasma arc welding
To protect the collimator of a transferred plasma arc torch from premature failure due to corrosion, an anti-corrosive covering is applied on the exposed face surface and a portion of the inner exit bore of the collimator. The specification describes several methods for producing the collimator for a plasma torch having an anti-corrosive coating or cladding on the exposed surfaces thereof, including electroplating, electroless plating, flame spraying, plasma spraying, plasma transferred arc, hot isostatic pressing and explosive cladding.
Owner:PHOENIX SOLUTIONS CO
Welding electrode for aluminum sheets
InactiveUS6861609B2Good welding performanceCurvature of the face is more pronouncedOhmic-resistance electrodesPressure electrodesEngineeringAlloy
A design of copper welding electrode is disclosed. The electrode can be used in successive spot welding operations on assembled aluminum alloy sheet parts of widely varying thicknesses, e.g., from 0.9 to 4+ mm. The electrode has a round body terminating in a truncated cone with a crowned face. The face has a diameter of about eleven millimeters up to the diameter of the body and the radius of the crowned face is about twenty to thirty millimeters. The dimensions and shape of the electrode provide robust welding performances despite varying part thicknesses and off angle electrode positioning, and the textured surface provides good electrical contact.
Owner:GM GLOBAL TECH OPERATIONS LLC
Process for welding
InactiveUS7170032B2Long electrode lifeEvacuating shieldingWelding/cutting media/materialsElastomerShielding gas
A welding process for non-stainless steel workpieces using GTAW equipment and hydrogen containing shield gas on a first root pass is improved by using a shield gas delivery system comprising hoses or conduits made of elastomeric material having a moisture permeability coefficient of less that 275, preferably less than 100, and using a tungsten electrode composition comprising at least tungsten and lanthanum oxide, and preferably tungsten, lanthanum oxide, yttrium oxide and zirconium oxide. Preventing moisture permeation through the elastomeric hoses delivering hydrogen containing shield gas eliminates expulsion of fused weld metal during second pass filler welding over the root pass weld. Electrode life is enhanced using the tungsten compounds.
Owner:JV IND CO LLC
Process for welding
InactiveUS20050109735A1Long electrode lifeEvacuating shieldingWelding/cutting media/materialsElastomerShielding gas
A welding process for non-stainless steel workpieces using GTAW equipment and hydrogen containing shield gas on a first root pass is improved by using a shield gas delivery system comprising hoses or conduits made of elastomeric material having a moisture permeability coefficient of less that 275, preferably less than 100, and using a tungsten electrode composition comprising at least tungsten and lanthanum oxide, and preferably tungsten, lanthanum oxide, yttrium oxide and zirconium oxide. Preventing moisture permeation through the elastomeric hoses delivering hydrogen containing shield gas eliminates expulsion of fused weld metal during second pass filler welding over the root pass weld. Electrode life is enhanced using the tungsten compounds.
Owner:JV IND CO LLC
Sub-micron adjustable mount for supporting a component and method
InactiveUS7126078B2Control deformationOhmic-resistance electrodesElectrode featuresEngineeringLateral movement
An arrangement is provided including an electrode extending to an electrode tip for contacting a workpiece. A welding configuration of the electrode tip is established by exposing the electrode tip to a selected welding environment for use in forming a weld having a target set of weld parameters. An electrode passage is defined in a biasing force arrangement supporting at least a portion of the length of an elongated, flexible electrode and to limit lateral movement sufficient to transfer at least a portion of a resilient force to the electrode tip so that the tip resiliently contacts the weld region. The electrode passage limits induced lateral flexing to an extent which transfers an amount of the resilient force to the first end portion of the electrode that is sufficient to provide for formation of a weld between the support arrangement and the workpiece.
Owner:DEMERS JOSEPH R
Welding wire positioning system
Owner:LINCOLN GLOBAL INC
System and method for selecting weld parameters
InactiveUS20150122781A1Good synergyProgramme controlWelding/cutting media/materialsEngineeringWelding process
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.
Owner:ILLINOIS TOOL WORKS INC
Weld electrode for attractive weld appearance
ActiveUS8222560B2High thermal and electrical resistivityHigh melting pointOhmic-resistance electrodesPressure electrodesSpot weldingVisible surface
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.
Owner:GM GLOBAL TECH OPERATIONS LLC
Gas-cooled plasma arc cutting torch
ActiveUS8089025B2Dampening motionPlasma welding apparatusWelding/cutting media/materialsSpray nozzleTorch
A method and apparatus for a gas-cooled plasma arc torch. Components of the torch can include an electrode, nozzle and a shield, each of which can be gas-cooled. The nozzle can be disposed relative to the electrode and can include a generally hollow conductive body and a cooling gas flow channel defined by at least one fin disposed about an exterior surface of the body, the body providing a thermal conductive path that transfers heat between the nozzle to the cooling gas flow channel during operation of the torch. The shield can be disposed relative to the nozzle and can include a generally hollow conductive body and a cooling gas flow channel defined by at least one fin disposed about an exterior surface of the body, the body providing a thermal conductive path that transfers heat between the shield to the cooling gas flow channel during operation of the torch.
Owner:HYPERTHERM INC
Thermal synthesis apparatus
InactiveUS20040208805A1Smoothly accelerateExpand smoothlyHydrogenCarbon monoxideNuclear engineeringReaction zone
An apparatus for thermal conversion of one or more reactants to desired end products includes an insulated reactor chamber having a high temperature heater such as a plasma torch at its inlet end and, optionally, a restrictive convergent-divergent nozzle at its outlet end. In a thermal conversion method, reactants are injected upstream from the reactor chamber and thoroughly mixed with the plasma stream before entering the reactor chamber. The reactor chamber has a reaction zone that is maintained at a substantially uniform temperature. The resulting heated gaseous stream is then rapidly cooled by passage through the nozzle, which "freezes" the desired end product(s) in the heated equilibrium reaction stage, or is discharged through an outlet pipe without the convergent-divergent nozzle. The desired end products are then separated from the gaseous stream.
Owner:BATTELLE ENERGY ALLIANCE LLC
Apparatus and method for a liquid cooled shield for improved piercing performance
ActiveUS8389887B2Extended service lifeQuality improvementIndirect heat exchangersPlasma welding apparatusMolten metalMaterials science
Owner:HYPERTHERM INC
Electrode for spot welding
ActiveUS8525066B2Readily re-shapedOhmic-resistance electrodesWelding/cutting media/materialsSheet steelSpot welding
Owner:GM GLOBAL TECH OPERATIONS LLC
Nozzle with exposed vent passage
ActiveUS8338740B2Limit available spaceProlong lifeElectric discharge tubesElectric arc lampsTorchEngineering
A nozzle for a plasma torch can include a body that has an inner surface, an outer surface, a proximal end, and an exit orifice at a distal end. The nozzle can also include a liner surrounded by the inner surface of the body. The liner can include a proximal end and an exit orifice at a distal end adjacent the exit orifice of the body. The nozzle can include at least one vent passage formed in the body. The vent passage can have an inlet formed in the inner surface of the body and an outlet formed in the outer surface of the body. The vent passage can be disposed between the proximal end of the body and the proximal end of the liner. The plasma arc torch can include a configuration that allows for increased electrode life and nozzle life for a vented high current plasma process.
Owner:HYPERTHERM INC
Method and system for hot wire welding
InactiveUS20020117489A1Welding/cutting media/materialsWelding electrode featuresPower flowWelding power supply
A hot wire welding method and system rely upon a welding torch with a non-melting electrode, a melting metal filler wire that is fed into a weld puddle created by welding arc, a microprocessor controller for controlling (i) current of the main welding arc, (ii) filler wire feed speed, and (iii) hot wire current for heating the filler wire. The method and system also rely upon a main welding power supply for supplying the main welding arc and a secondary DC supply for supplying the hot wire current. The hot wire current is automatically controlled by the microprocessor to supply the correct amount of current to the filler wire in response to changes in wire feed speed.
Owner:ARNDT TONY LEE +2
One-piece consumable assembly
InactiveUS8395076B2Minimizes numberFinish quicklyPlasma welding apparatusWelding/cutting media/materialsEngineeringTorch
An apparatus and method of manufacturing a plasma torch consumable is disclosed. The invention includes at least two of a tip, a shielding cup, an electrode, and a swirl ring being integral to form a unitary one-piece assembly prior to being attached to the torch. Such a construction minimizes the number of parts that must be handled and orientated when connecting the consumable assembly to a plasma torch.
Owner:ILLINOIS TOOL WORKS INC
Consumable electrode arc welding method and consumable electrode arc welding device
ActiveUS20120074114A1Uniform beadImproved arc stabilityWelding/cutting media/materialsWelding electrode featuresMechanical engineeringElectric arc
If a short circuit does not occur during deceleration of a wire feed speed in forward feed of a welding wire before the wire feed speed reaches a predetermined wire feed speed, a cyclic change is stopped and the wire feed speed is constantly controlled at the first feed speed. If a short circuit occurs during forward feed at the first feed speed, deceleration from the first feed speed starts, and the cyclic change is resumed for welding. This achieves uniform weld bead without increasing spatters even if any external disturbance such as change of distance between a tip and base material occurs.
Owner:PANASONIC CORP
Cooling apparatus and plasma processing apparatus having cooling apparatus
InactiveUS7000416B2Save energyManagement moreSemiconductor/solid-state device manufacturingIndirect heat exchangersEngineeringRefrigerant
a cooling apparatus 110 comprises a primary refrigerant circulating circuit which allows a primary refrigerant CW1 whose temperature is adjusted by a heat exchanger 138 to circulate through an electrode to adjust a temperature of the electrode, a secondary refrigerant circulating circuit which supplies a secondary refrigerant CW2 to the heat exchanger to adjust the temperature of the primary refrigerant, and a freezing circuit 140 which has a first heat exchanger 141 interposed in the secondary refrigerant circulating circuit and which adjust a temperature of the secondary refrigerant by a tertiary refrigerant. The temperature of the primary refrigerant is adjusted by the secondary refrigerant without adjusting the temperature using the freezing circuit. When a temperature of the primary refrigerant is set higher than that of the secondary refrigerant, the temperature of the primary refrigerant can be adjusted only by the secondary refrigerant. Only when the temperature of the primary refrigerant is set lower than that of the secondary refrigerant, the temperature of the secondary refrigerant is adjusted by the freezing circuit and thus, it is possible to save energy.
Owner:TOKYO ELECTRON LTD
Wire feed speed adjustable welding torch
InactiveUS6841752B2Adjustable speedWelding/cutting media/materialsWelding electrode featuresWire rodEngineering
Owner:WARD JOSEPH J
Apparatus and Method for a Liquid Cooled Shield for Improved Piercing Performance
ActiveUS20090230095A1Extended service lifeCut quality of plasmaIndirect heat exchangersPlasma welding apparatusTorchMolten metal
A shield for a plasma arc torch that pierces and cuts a metallic workpiece producing a splattering of molten metal directed at the torch, the shield protecting consumable components of the plasma arc torch from the splattering molten metal. The shield can include a body, a first surface of the body configured to be contact-cooled by a gas flow, a second surface of the body configured to be contact-cooled by a liquid flow, and a seal assembly configured to be secured to the body and disposed relative to the second surface configured to retain the liquid flow contact-cooling the second surface.
Owner:HYPERTHERM INC
Methods for treating superalloy articles, and related repair processes
A method is described, for treating a superalloy substrate which includes at least one cavity containing adherent metal oxide material on its surface. A short-pulsed, high repetition rate laser beam is directed against the cavity surface for a period of time sufficient to remove substantially all of the adherent metal oxide material. The laser beam is characterized by a peak power density in the range of about 10 megawatts / cm2 to about 10 gigawatts / cm2. In another embodiment, a high-power, short-pulsed, high repetition rate laser beam is directed to a region on the substrate which includes the cavity, under laser operational conditions which are capable of cutting into the superalloy material; so that a boundary region is formed within the substrate, which encloses the cavity. The cavity can be a crack in a turbine blade, and the crack can be repaired after treatment, by welding, or by another suitable technique.
Owner:GENERAL ELECTRIC CO
Dielectric devices for a plasma arc torch
ActiveUS20070262060A1Decreasing damaging interactionGood operating visionPlasma welding apparatusWelding/cutting media/materialsDielectricVisibility
Apparatus and methods for thermally processing a workpiece include directing a plasma arc to the workpiece and using a dielectric shield or dielectric coating to protect a forward portion (e.g., a torch head) of a plasma arc torch. The dielectric shield or dielectric coating covers a nozzle disposed within the torch head and protects the nozzle from the effects of slag and double arcing. The shield also improves operator visibility due to the spatial relationship between the dielectric shield and the nozzle.
Owner:HYPERTHERM INC
Welding process
Owner:GENERAL ELECTRIC CO
Dielectric devices for a plasma arc torch
ActiveUS8097828B2Decreasing damaging interactionGood operating visionPlasma welding apparatusWelding/cutting media/materialsVisibilityDielectric
Apparatus and methods for thermally processing a workpiece include directing a plasma arc to the workpiece and using a dielectric shield or dielectric coating to protect a forward portion (e.g., a torch head) of a plasma arc torch. The dielectric shield or dielectric coating covers a nozzle disposed within the torch head and protects the nozzle from the effects of slag and double arcing. The shield also improves operator visibility due to the spatial relationship between the dielectric shield and the nozzle.
Owner:HYPERTHERM INC
Joint product between steel product and aluminum material, spot welding method for the joint product, and electrode chip for use in the joint product
InactiveUS20090011269A1High bonding strengthLow costOhmic-resistance electrodesOther manufacturing equipments/toolsReaction layerSpot welding
To provide a joint product of a steel product and an aluminum material, and a spot welding method for the joint product, ensuring that spot welding with high bonding strength can be performed. In one embodiment, a steel product 1 having a sheet thickness t1 of 0.3 to 3.0 mm and an aluminum material 2 having a sheet thickness t2 of 0.5 to 4.0 mm are joined together by spot welding to form a joint product of a steel product and an aluminum produce. In this joint product, the nugget area in the joint part is from 20×t20.5 to 100×t20.5 mm2, the area of a portion where the thickness of the interface reaction layer is from 0.5 to 3 μm is 10×t20.5 mm2 or more, and the difference between the interface reaction layer thickness at the joint part center and the interface reaction layer thickness at a point distant from the joint part center by a distance of one-fourth of the joint diameter Dc is 5 μm or less. According to this construction, there can be provided a dissimilar material joint product with excellent bonding strength, which can be formed by an existing spot welding apparatus at a low cost without newly using other materials such as clad material or without newly adding a separate step, and a spot welding method for the dissimilar material joint product.
Owner:KOBE STEEL LTD
Weld electrode for attractive weld appearance
ActiveUS20090127232A1High thermal and electrical resistivityHigh melting pointOhmic-resistance electrodesPressure electrodesSheet steelSpot welding
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.
Owner:GM GLOBAL TECH OPERATIONS LLC
MIG-plasma welding
A welding system comprises a combined torch that includes a consumable electrode and a non-consumable electrode positioned so that their respective axes form an acute angle and so that arcs initiated from the electrodes intersect a workpiece plane to define an impingement point distance D, and a magnetic mechanism coupled to the torch and used for controlling the distance D during welding. The magnetic mechanism may be a magnetic shield inserted between the electrodes, or a separate magnetic device, e.g. a permanent magnet or electromagnet.
Owner:WELDOBOT
Interchangeable plasma nozzle interface
ActiveUS7759599B2Increase flexibilityEasy to usePlasma welding apparatusWelding/cutting media/materialsSpray nozzleElectrical connection
The present invention provides a standard interface for providing mechanical location, mechanical orientation, electrical connections, and water chamber seals for the exchange of a variety of plasma forming nozzles each associated with a specific plasma plume characteristic. The flexibility of the nozzle attachment is improved over prior designs by providing a standard exterior nozzle configuration and nozzle clamping assembly on the plasma gun so that multiple nozzles configurations (giving different plasma flow properties) can easily be used with the same devices. The joining of the nozzle to the receptacle forms a channel for cooling liquid to flow from the plasma gun through the nozzle to a return path in the plasma gun and creates an electrical contact between the plasma gun and the nozzle.
Owner:SULZER METCO (US) INC
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