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| Number | Title | Issue Date |
| 8153934 | Saw flux system for improved as-cast weld metal toughness A granular flux having controlled amounts of titanium and boron to facilitate in the formation of a weld metal having a high toughness without requiring refinement of the weld metal by reheating the weld metal, and enabling the slag to be easily removed from the wel... | 04/10/2012 |
| 7915566 | Weld filler, use of the weld filler and welding process The invention relates to a weld filler and to a use of a weld filler which significantly improves the weldability of some nickel-based superalloys and includes the following constituents (in wt %): 17.5%-20.0% chromium (Cr) 10.0%-12.0% cobalt (Co) 9.0%-10.5% molybde... | 03/29/2011 |
| 7884305 | Weld bead shape control Disclosed are techniques and compositions for arc welding consumables such as electrodes that reduce the energy otherwise required for the welding. Particularly, the techniques and electrode compositions can reduce the extent of contamination of weld metal in an arc... | 02/08/2011 |
| 7786407 | Process for capillary electric welding of low and high alloy steels, hardened or not, and bimetals, for the obtainment of a determined texture, without thermal treatment Patent of Invention for PROCESS CAPILLARY ELECTRIC WELDING OF LOW AND HIGH ALLOY STEELS, HARDENED OR NOT, AND BI-METALS, FOR THE OBTAINMENT OF A DETERMINED TEXTURE, WITHOUT THERMAL TREATMENT, in which the first layer (1) is used to line the bevel and its root... | 08/31/2010 |
| 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 an assembly of the profiles defining the closed tubular section, the p... | 06/03/2008 |
| 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 butting relationship along a butting joint and the third component or un... | 05/13/2008 |
| 7335849 | Stud welding method A method of welding a stud 15 to a base material 14, both made of magnesium or magnesium alloy, comprising; a first step of disposing the stud 15 having a projection 28 at an end portion thereof to have a gap to the base material 14; | 02/26/2008 |
| 7333343 | Titanium crash survivable memory unit A high strength, light weight crash survivable memory unit (CSMU). The CSMU includes memory storage devices surrounded by a heat resistive material. A housing surrounds the heat resistive material. The housing includes a plurality of panels that include Titanium. Tw... | 02/19/2008 |
| 7285747 | Flux assisted gas tungsten arc welding utilizing consumable inserts for ultra low profile welding applications A speedy method of welding in a tight space using a single pass is provided using a technique which involves the use of a particularly shaped, flux treated consumable insert to provide deep weld penetration by a GTAW machine which is compact and fits the narrow spac... | 10/23/2007 |
| 7244904 | Metal-protective gas-joint with changeable polarity A method of gas-shielded metal arc joining using a consumable electrode having an alternating polarity (GMA-AC). A shielding gas containing helium is used to improve process stability and working speed. ... | 07/17/2007 |
| 7241970 | Ternary gas mixture which can be used in the braze welding of galvanized parts A method of brazing galvanized metal parts such as those used for motor vehicle elements or container components. The parts are joined together to create a brazed joint by using at least one electric arc, a metal filler wire, and a gas shield. The gas shield contain... | 07/10/2007 |
| 7241971 | Laser/arc hybrid welding process for ferritic steels A method and an apparatus for a hybrid laser beam and electric arc welding process. A laser beam, an electric arc, a shielding gas and a consumable welding wire are used to create a weld on a steel work piece by melting the welding wire. The weld contains 30 to 1000... | 07/10/2007 |
| 7235757 | Device for tightly fastening at least two members A device for clamping at least two components for use in friction stir welding supports the components and holds the components in place using a plurality of channels placed under vacuum for clamping of the components during friction stir welding. Both sides of a we... | 06/26/2007 |
| 7217905 | Weld filler metal that reduces residual stress and distortion A filler metal including not more than about 0.1% C, not more than about 1.0% Si; not more than about 0.8% Mn; from about 10.5% to about 13.0% Cr; from about 0.65% to about 4.0% Ni; from about 10(% C) to about 1.5% Ti; not more than about 0.5% each of N, S, P, Mo, N... | 05/15/2007 |
| 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 electrodes, whereby a shielding gas stream is supplied to the work pi... | 05/01/2007 |
| 7208695 | Welding shield gas and welding method A welding shield gas comprising an inert gas and nitrogen gas, where the concentration of the nitrogen gas is 1 to 95 vol %; or comprising an inert gas and a helium gas, where the concentration of the helium gas is 35 to 95 vol %; or comprising an inert gas, nitroge... | 04/24/2007 |
| 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 active gasses in the vpm range (0.005 to 0.5% by volume). These shieldin... | 03/13/2007 |
| 7115221 | Method for producing graphite powder with an increased bulk density A method for increasing the Scott density of synthetic and/or natural graphite powders of any particle size distribution, preferably of highly-pure graphite, by subjecting the graphite powder to an autogenous surface treatment. The powder is used, in particular, for... | 10/03/2006 |
| 7087853 | Method for joining porous metal structures and structure formed thereby A method for joining weldable metal structures and compound structure formed using the method are disclosed herein. The method includes steps of abutting a first structure to a second structure along an edge to form a seam. The two structures are then welded togethe... | 08/08/2006 |
| 7075033 | Low cost titanium welding method Method of welding titanium using gas metal arc welding procedure where the shielding for the weld included torch shielding gas only and no trailing or backup shielding. The technique used here is a departure from known titanium welding specifications wherein extensi... | 07/11/2006 |
| 7071438 | Gas composition for arc welding The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consis... | 07/04/2006 |
| 7052559 | Welding flux for use in arc-welding of stainless steels, method of welding stainless steel members using the welding flux A welding flux for use in welding stainless steel parts to increase welding penetration, consisting essentially a base material obtained from manganese peroxide (MnO2), and an activator selected from a material group that includes zinc oxide (ZnO), silico... | 05/30/2006 |
| 7038163 | Use of helium/nitrogen gas mixtures in up to 12 kW laser welding Binary gas mixture for welding using a laser beam of up to 12 kW, consisting of 30% to 60% nitrogen by volume, the remainder (up to 100%) being helium. Application of this gas mixture to the welding of steel, stainless steel or titanium. ... | 05/02/2006 |
| 7026576 | Welding wire and welding method using the wire A welding wire contains 0.025 mass % or less C, 1.3 mass % or less Si, 2.0 mass % or less Mn, 10 to 25 mass % Cr, 0.04 to 0.2 mass % N, Al and Ti in amounts (mass %) satisfying the relationship: e−800(x−0.05)2×e−300(y... | 04/11/2006 |
| 7022939 | Through weld for aluminum or aluminum alloy base metals by using high-density energy beams This invention provides a new through weld method to carry out welding of a base metal made of aluminum or that of aluminum alloy using high energy beams wherein a shield gas ambience (an inert gas ambience) to cover a welding site in a submerged-scar is formed, eve... | 04/04/2006 |
| 7015417 | Workpiece welding process A laser light L is emitted from a laser light source 6 to workpieces 1, 2, to form a laser molten weld pool 3, and immediately thereafter, an arc molten weld pool 4 is formed using an arc welding machine 7; thereby plates 1, 2 | 03/21/2006 |
| 6969818 | Tandem welding shielding gases A shielding gas for gas shielded metal-arc welding or brazing with multiple (in particular 2) wire electrodes, one common melting bath, and multiple power sources. Such shielding gases contain, for example, a small percentage of carbon dioxide or doping gas and poss... | 11/29/2005 |
| 6953508 | High strength steel weld having improved resistance to cold cracking and a welding method A welding method includes performing welding to form a weld metal consisting essentially of, in mass %, | 10/11/2005 |
| 6933468 | Aluminum metal-core weld wire and method for forming the same An aluminum metal-core weld wire, the sheath being aluminum, the metal-core having a composition that contains primarily metallic alloying powders e.g. Manganese nitride and/or barium. A method for manufacturing aluminum metal-core wire, the method including deposit... | 08/23/2005 |
| 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 distortion, to a temperature in the range of about 1400F (760C) to about 200... | 08/09/2005 |
| 6921444 | Method of locally heating a part to reduce strength and increase ductility for subsequent manufacturing operation A method of performing manufacturing operations on a workpiece made of a high strength alloy is disclosed in which a local area of a workpiece is heated to micro-structurally soften the local area. The local area of the workpiece becomes softened and more ductile. A... | 07/26/2005 |
| 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 passed over the sheets. The head of the welding machine is configured... | 06/14/2005 |
| 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 structure and desirable profile are produced by single pass orbital ... | 04/26/2005 |
| 6855913 | Flux-cored wire formulation for welding A weld wire having a core composition comprising a combination of graphite and a compound of potassium is disclosed. The combination of graphite and the compound of potassium in the core composition does not exceed approximately 5% by weight, making it possible for ... | 02/15/2005 |
| 6835913 | Hardsurfacing welding wire and process A welding wire comprising a flux core having a core composition alloyed with a combination of alloying elements is described. The alloying elements comprise Cr and N, wherein the flux core comprises between 10% and 50% of the total weight of the weld wire. A metal s... | 12/28/2004 |
| 6825442 | Tailor welded blank for fluid forming operation A tailor welded blank for use in a fluid-forming operation includes a first sheet element having a physical characteristic with a first value and a second sheet element having the physical characteristic with a second value different from the first value. The first ... | 11/30/2004 |
| 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 part (13) consists of a nickel-base alloy which conta... | 06/22/2004 |
| 6730876 | Highly ductile reduced imperfection weld for ductile iron and method for producing same The art has experienced difficulty obtaining “sound” welds with high-nickel welds above the second pass. Particular problems are tension anomalies and sub-optimal interweld pass fusion at higher order passes of the weld wire, along with undesirably high heat lev... | 05/04/2004 |
| 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% sulphur, from 0 to 0.03% phosphorous, from 1.9 to 2.6% chromium, from 0... | 03/30/2004 |
| 6706992 | Welding apparatus and method for welding overlapping coated sheets A welding apparatus spot welds two or more overlapping sheets having a coating, such as zinc coated steel or aluminum alloy with an oxide coating. A hole is formed in the upper sheet at the desired point of spot welding. A clamping cup of a plasma arc passes surroun... | 03/16/2004 |
