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7525067 |
Dual wire welding torch and method
A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient...
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7507933 |
Method for fabricating a rotor shaft
A method for fabricating a rotor shaft using a welding process. The method includes positioning a first rotor shaft section adjacent a second rotor shaft section, and using a submerged arc welding...
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7498543 |
Method for joining or repairing metal surface parts
A method of joining or repairing metal surface structures. Joinder and/or repair of metal or metal-polymer laminate panels may be carried out using so-called “cold metal transfer” gas metal arc...
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7495193 |
Pipe seam tack welding methods and apparatus using modified series arc welding
Welders and methods are presented for short-circuit arc welding a workpiece using a modified series arc welding configuration with two electrodes via a sequence of welding cycles, in which each...
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7485829 |
Method of producing solid wire for welding
A method for efficient production of a welding solid wire free of copper plating. The method consists of drawing by means of roller dies with the help of a dry solid lubricant for drawing which is...
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7485826 |
Wire-guide nozzle assembly for a robotic TIG welding torch
The invention relates to a wire-guide/nozzle assembly ( 11, 13 ) for an electric arc welding torch, comprising at least one nozzle ( 11 ) for delivering gas and at least one wire-guide system ( 13...
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7408130 |
YAG laser induced arc filler wire composite welding method and weldimg equipment
A combined welding method with a filler wire using both a YAG laser and an electric arc, and a combined welding device with a filler wire using both a YAG laser and an electric arc. The welding is...
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7388170 |
Preparing a protective gas mixture for arc joining
This invention provides a method for on-site production of a protective gas mixture for arc joining, in particular for arc welding. Gaseous argon is removed from a liquid argon supply and helium is...
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7380384 |
Layout for shop window construction, as well as a window frame, glazed door and/or similar, composed of such a layout
A layout for shop window construction includes a dormant frame and an opening frame of a closed tubular section defining an internal volume, the opening or dormant frames appearing in the form of...
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7371994 |
Buried arc welding of integrally backed square butt joints
Buried arc welding is employed to fuse together a first component, a second component, and a third component or an underlying portion of the second component, the first and second components in...
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7312416 |
Apparatus and methods for underwater welding
A lower housing having a lower chamber and a welding opening is fixed about an underwater weld site. The lower housing includes an upper opening, the lower housing being filled with water upon...
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7307238 |
Determining quality of a stick electrode
A method of measuring the quality of a stick electrode used in forming the root bead of a pipe joint, which electrode has a wire diameter, a length substantially greater than 12 inches and an upper...
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7304268 |
Method for rating stick electrodes for pipe welding
Stick welding electrode rating and ranking procedures are provided for determining stackability performance of stick electrodes for pipe welding operations. The rating technique involves...
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7297900 |
Bypass weld torch
Methods of arc welding and an arc welding assembly comprise a power source configured to provide a welding current, and a single weld housing. The weld housing comprises a welding torch, which...
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7288737 |
Laser/MIG hybrid welding process with a high wire speed
Methods for hybrid laser/MIG welding processes. A bevel formed between the edges of material to be welded together is partially filled with molten metal. The molten metal is delivered in the form...
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7253377 |
System and method of joining overlapping workpieces
An improved fusion welding system having a perforating device and a heating combination is adapted for welding in tandem a set of adjacent overlapping workpieces. The system preferably includes a...
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7214899 |
Process for the continuous production of longitudinally welded metal tubes
A process for the continuous production of longitudinally welded metal tubes where a metal strip ( 1 ) is drawn from a strip supply and gradually shaped into a slit tube in a shaping station ( 2 )....
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7211765 |
Shielding gas and arc-welding method
The invention relates to a shielding gas for use in the arc welding of metallic work pieces. The invention further relates to a process for the arc welding of metallic work pieces using consumable...
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7189941 |
Process for making heterogeneous joints under shielding gas
In joining heterogeneous materials that differ in their melting points, a shielding gas mixture with active gas content is utilized. In particular, the shielding gas mixture contains helium and...
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7180030 |
Method for rating and/or ranking welding electrodes
Methods are disclosed for rating a welding electrode and/or for ranking two or more electrodes with respect to gas tracking effects in gas shielded flux cored arc welding processes. The methods...
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7173215 |
Method for evaluating and/or comparing welding consumables
Methods and systems are disclosed for characterizing a welding consumable, such as flux or an electrode, and/or for comparing two or more welding consumables for use in narrow gap deep groove...
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7170032 |
Process for welding
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...
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7161109 |
Gas metal arc welding of coated steels and shielding gas therefor
This invention relates to a method for gas metal arc welding of coated steels, and a shielding gas therefor, in which the method comprises:
(a) forming an arc between a consumable wire...
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7148445 |
Process for manufacturing a tie rod housing
A process for manufacturing a tie rod housing formed of a tie rod head ( 1 ) and a shaft element ( 2 ) fastened thereto. The tie rod head ( 1 ) receives its final shape by a mechanical machining...
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7138602 |
Method and apparatus for welding with mechanical arc control
A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source...
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7138600 |
Automatic pulse plasma welding method and apparatus for forming lap joint between membrane sheets
Disclosed herein is an automatic pulse plasma welding method and apparatus for forming a lap joint between membrane sheets, which applies plasma welding to a lap joint between membrane sheets to...
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7122762 |
Implementation system for continuous welding, method, and products for the implementation of the system and/or method
Apparatus and method for use with a welding system. The apparatus and method provides a fluid bath which allows a welding nozzle of the welding system to be dipped into, for example, a friction...
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7108152 |
Fryer vats having strengthened vat welds and methods of manufacturing such fryer vats
A method of manufacturing a fryer vat includes the step of welding together side portions and a main portion of a fryer vat, in which the step of welding includes the step of forming a plurality of...
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7091448 |
Welding electrode and method for reducing manganese in fume
A cored electrode for arc welding, said electrode having a core in which the fill material includes a manganese-containing composite particle.
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7091447 |
Local heatsink welding device and welding method thereof
Provided is a local heatsink welding device and a method of welding using the same. The local heatsink welding device includes a welding torch disposed above welds of two pieces of a base metal...
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7091442 |
Welding apparatus and method for welding overlapping coated sheets
A welding apparatus spot welds an upper sheet and a lower sheet together. A substantially semi-circular hole or notch is formed at an edge of the upper sheet at the desired location of spot...
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7009139 |
Method and apparatus for composite YAG laser/arc welding
A combined YAG laser/arc welding apparatus performs a welding operation with a large depth of fusion and a deep fusion at a high efficiency. The welding apparatus includes an arc electrode which...
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7005607 |
Welding method, welding device, welded joint, and welded structure
A welding method is disclosed for butt welding a first base material 1 and a second base material 2 with each other. To also permit stable and efficient formation of a bead in the form of a...
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6969826 |
Welding process
A process for repairing a compressor rear frame of a gas turbine engine. The process entails removing a seal flange from the inner casing wall of the frame to define an annular face on the casing...
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6927361 |
Surface oxide weld penetration enhancement method and article
A method for welding iron-based or nickel-based superalloy assemblies into a unitary article. First, the assemblies are heated in an air atmosphere, at a rate suitable to minimize geometric...
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6919534 |
Welded joints in high strength, heat resistant steels, and a welding method therefor
A welding method and a welded joint for high strength, temperature resistant steels produce the same strength as the base metal in the welded joint, thereby resolving strength problems in the heat...
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6906281 |
Method for laser welding of metal
A method of welding at least two metal sheets protected by a zinc coating that has a low vaporizing temperature. The metal sheets are placed on top of each other and a head of a welding machine is...
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6888088 |
Hardfacing materials & methods
A method for applying wear resistant material to a substrate, the substrate comprised of material with a substrate coefficient of thermal expansion, the method including applying the wear resistant...
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6884964 |
Method of weld repairing a component and component repaired thereby
The method of repairing a metal alloy component, and the resulting repaired component. The method involves machining the component surface to remove a defect, and then placing in the resulting...
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6884963 |
Apparatus and method for welding duplex stainless steel
Arc welding of duplex stainless steel tubing is accomplished using a non-pulsed electric arc and a high refractory weld flux. Weld beads, uniform throughout their lengths, and having a duplex phase...
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6870119 |
Modular steel concrete reinforcement system
A method of welding reinforcement steel bars (rebar) and assembly of fusion-welded rebar into panel assemblies that are self-stabilizing to withstand the rigors of transport to and positioning...
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6861617 |
Method of reducing distortion by transient thermal tensioning
A method to minimize the distortion, such as buckling, caused in the welding of thin plate by utilizing transient thermal tensioning to induce areas of residual tensile stress. Distortion of such...
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6828526 |
Gas metal buried arc welding of lap-penetration joints
A method of welding continuous or intermittent lap-penetration joints using a gas metal buried arc (GMBA) welding process. A first component is GMBA welded to an underlying second metal component,...
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6768974 |
Method for determining a model for a welding simulation and model thereof
A method for determining a model for a welding simulation, and the associated model. The method includes the steps of determining a history annihilation model of a material being welded,...
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6753504 |
Method for welding together two parts which are exposed to different temperatures, and turbomachine produced using a method of this type
In a method for welding together two parts ( 12, 13 ), especially of a turbomachine, which are exposed to different temperatures, of which the first part ( 12 ) consists of a steel and the second...
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6713722 |
Rotor and method for welding an element of a rotor
A method of forming a rotor comprises the step of welding a rotor element. The weld metal comprises: from 0.04 to 0.1% carbon, from 0 to 0.5% silicon, from 0.1 to 0.6% manganese, from 0 to 0.01%...
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6707003 |
Method and system for solving a problem arising during a welding operation or the like
A method and a system for diagnosing and/or solving, in particular remotely, a given technical problem likely to arise before, during or after a heat treatment operation on metals, in particular in...
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6693252 |
Plasma MIG welding with plasma torch and MIG torch
Methods and apparatuses for plasma MIG welding or TIG MIG welding are disclosed. They include a plasma or TIG torch for following along a weld path by a MIG torch (or the order may be reversed). A...
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6664509 |
Method for securing sheet piles
A method for securing two sheet piles includes interlocking the two sheet piles by utilizing sheet pile interlocks having an axial groove formed between the sheet pile interlocks. The method...
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6649870 |
System and method facilitating fillet weld performance
The present invention provides a welding system and methodology to facilitate an improved fillet weld. The system includes an arc welding subsystem providing a fillet weld that joins one or more...
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