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| Number | Title | Issue Date |
| 7959056 | Method for joining rails by friction welding Method for the metallic joining of profiled rails in the longitudinal direction. Method includes heating rail ends to a joining temperature by pressing together faces of the rails end while simultaneously moving them relative to one another in an oscillating manner ... | 06/14/2011 |
| 7841506 | Method of manufacture of dual titanium alloy impeller There is provided a method for fabricating a dual alloy structure that may in turn be machined to fabricate a rotary component such as an impeller for use in a gas turbine engine. The method provides a first titanium alloy and a second titanium alloy. The first tita... | 11/30/2010 |
| 7441689 | Orbital friction welding method and device for carrying out said method The invention relates to an orbital friction welding method and a friction welding device for welding workpieces by means of friction welding units, wherein the workpieces are pressed against each other in the contact plane during the application of the oscillation ... | 10/28/2008 |
| 7370786 | Bonding method and bonding apparatus Disclosed are a bonding method for a semiconductor chip, which employs an ultrasonic bonding scheme that prevents wear-out of the top surface of a mount tool and ensures both high reliability and high productivity, and a bonding apparatus which is used to carry out ... | 05/13/2008 |
| 7275677 | Synchronized tubular friction welding arrangement Method and apparatus for friction welding termination elements at first and second ends (21, 23) of a cylindrical shaft (15) in alaignment with an axis. A shaft receiver (17) receives the cylindrical shaft (15), and a first chuck (70 | 10/02/2007 |
| 7267258 | Method for metallically connecting rods by oscillating friction welding The process for metallically connecting the faces of rods. Axially normal dressing at least two rod free ends, then placing the cross sectional surfaces of the rod free ends one against another under pressure. Oscillating the two rod free ends in the opposite direct... | 09/11/2007 |
| 7172105 | Apparatus for positioning pipe and tubing A counterweight assembly is especially adapted for mounting to a spinner tool allowing a workpiece to be balanced when rotated during welding or other operations. The counterweight assembly has an adjustable counterweight to provide a necessary amount of counterbala... | 02/06/2007 |
| 7147044 | Processing apparatus for continuously conveying heat pipes A processing apparatus for continuously conveying heat pipes includes a feeder and at least one processing station. The feeder includes a processing stage, which includes a feeding end and an exiting end opposite to the feeding end. A feeding direction is defined fr... | 12/12/2006 |
| 7090112 | Method and sealant for joints A joint between one or more structural members and an associated method are provided. The joint includes a friction weld joint or other connection between faying surfaces of the members, and an exothermically reacted sealant disposed in an interface defined by the f... | 08/15/2006 |
| 7090113 | Inertia welded shaft and method therefor A method is provided for assembling a shaft having a metal matrix composite mid shaft and monolithic high strength alloy forward and aft shafts. The forward and aft shafts are each inertia friction welded to separate annular transition pieces which include a barrier... | 08/15/2006 |
| 7066375 | Aluminum coating for the corrosion protection of welds A method for coating and an associated assembly including such a coating are provided. The assembly includes a workpiece defining a weld portion, such as a friction weld joint and a heat affected zone. A coating is disposed on the weld portion to at least partially ... | 06/27/2006 |
| 7055732 | Semiconductor processing apparatus including plasma-resistant, welded aluminum structures We have discovered a method of producing a complex-shaped aluminum alloy article, where welding has been employed to form the article, where an anodized aluminum coating is produced over a surface of the article including the weld joint, and where the anodized alumi... | 06/06/2006 |
| 7021519 | Friction welding In one aspect the invention provides a friction welded component and a method of manufacture for such a component, comprising friction welding a reinforcement element (10) at an end cross-section thereof to a surface of a thin walled member (12) with a... | 04/04/2006 |
| 6969238 | Tri-property rotor assembly of a turbine engine, and method for its preparation A rotor assembly of an axial flow turbine engine has a bladed ring including a ring, and a plurality of turbine blades affixed to the ring and extending radially outwardly from the ring. There is a solid state weld joint between a central disk hub and the ring of th... | 11/29/2005 |
| 6957761 | Inertia or friction welding of conical components into elliptically-shaped holes in a pipe or tube A method of joining tubular structures using friction welding is disclosed. The invention provides a method of joining a first tubular structure having a conical contact surface to a second tubular member with an elliptical contact orifice by placing the conical sur... | 10/25/2005 |
| 6938816 | Methods of manufacturing diffusion bonded products and products manufactured by such methods A method is provided for diffusion bonding a first member (20) and a second member (3) to each other. According to this method, a first joint portion (24) of the first member and a second joint portion (34) of the second member are fitted... | 09/06/2005 |
| 6915938 | Method and apparatus for reducing component vibration during inertia welding A damper for reducing vibration in a least a portion of a component during inertia welding. The damper includes a generally annular body having a spiral slot formed therein. ... | 07/12/2005 |
| 6910616 | Preforms for forming machined structural assemblies A method of constructing a preform for use in forming a machined structural assembly is provided. The method includes determining the dimensions of the machined structural assembly. First and second structural members are selected based on the predetermined dimensio... | 06/28/2005 |
| 6883700 | Turbine blade closure system A turbine blade closure system composed of a closure member capable of being friction welded in an aperture in a hollow-cast turbine blade to prevent the escape of cooling fluids from an internal cavity in the turbine blade. In one embodiment, the aperture is formed... | 04/26/2005 |
| 6779709 | Portable inertia welder A portable inertia welder is mounted in a housing so as to afford both axial and rotational movement of a shaft with flywheel weights. Rotational motion is provided by a motor affixed to the drive shaft while axial motion is provided by means of a hydraulic housing ... | 08/24/2004 |
| 6779704 | Friction stir welding of metal matrix composites, ferrous alloys, non-ferrous alloys, and superalloys using a superabrasive tool A probe for friction stir welding MMCs, ferrous alloys, non-ferrous alloys, and superalloys, as well as non-ferrous alloys, the probe including a shank, a shoulder, and a pin disposed through the shoulder and into the shank, wherein the pin and the shoulder at least... | 08/24/2004 |
| 6749518 | Inertia welded shaft and method therefor A method is provided for assembling a shaft having a metal matrix composite mid shaft and monolithic high strength alloy forward and aft shafts. The forward and aft shafts are each inertia friction welded to separate annular transition pieces which include a barrier... | 06/15/2004 |
| 6744004 | Method for welding a differential housing A method of welding an axle housing surface to a blank surface includes generated heat in one of the two components. Heat is generated from at least one of these surfaces at their interface sufficient to weld them together. The surfaces are then applied together. | 06/01/2004 |
| 6736305 | Method and apparatus for friction welding The present invention relates to rotary friction welding and non-rotary motion friction welding, providing means for controlling ductilities of the components during the welding process so as to bias the welding process in favor of a first component or to match the ... | 05/18/2004 |
| 6659331 | Plasma-resistant, welded aluminum structures for use in semiconductor apparatus We have discovered a method of producing a complex-shaped aluminum alloy article, where welding has been employed to form the article, where an anodized aluminum coating is produced over a surface of the article including the weld joint, and where the ano... | 12/09/2003 |
| 6655575 | Superplastic forming of micro components A method for forming a miniaturized shaped component. Bulk superplastic material is contacted with a flat rotating surface of a rotating tool to frictionally heat the bulk superplastic material with the bulk superplastic material positioned between the fl... | 12/02/2003 |
| 6648206 | Friction stir welding using a superabrasive tool A probe for friction stir welding MMCs, ferrous alloys, non-ferrous alloys, and superalloys, as well as non-ferrous alloys, the probe including a shank, a shoulder, and a pin disposed through the shoulder and into the shank, wherein the pin and the should... | 11/18/2003 |
| 6604668 | Multi-head friction welding method For the manufacture of miter-welded profile rod frames by friction welding, a welding apparatus with friction welding units is used with which permits the welding of all miter joints of a frame to be made concurrently within a very short period and with v... | 08/12/2003 |
| 6532655 | Method of manufacturing hollow piston for compressors A method of manufacturing a hollow piston for variable displacement swash plate compressors of air conditioning systems is disclosed. This method produces a desired hollow piston by separately forming a body and a cap and by simply machining the body and ... | 03/18/2003 |
| 6491206 | Method of making closed cavity pistons A closed cavity piston includes an elongated piston body and a separately formed piston cap having an elongated stem and head thereon. The body includes a closed end and an open end with a cavity having a bottom wall adjacent the closed end and an outer w... | 12/10/2002 |
| 6386428 | Multi-element composite object A multi-element composite object composed from first, second, and third metal components is provided, wherein the first metal and the third metal are weld incompatible. The multi-element composite object includes a first component fabricated from a first ... | 05/14/2002 |
| 6375232 | Bi-metallic union fitting for use in threaded ports A lip seal union fitting attaches to a female boss associated with a hydraulic component. The female boss includes a bore, a first threaded portion located on an inner surface of the bore and a seat. A body of the lip seal union fitting is constructed of ... | 04/23/2002 |
| 6364197 | Friction stir welding of containers from the interior An apparatus and method for friction stir welding a seam in a hollow container from the inside. The apparatus includes a weld head convertible between a retracted state to an expanded state. The retracted weld head fits through an opening in the container... | 04/02/2002 |
| 6334571 | Thin interlayer friction welding A method of welding an assembly comprising two aligned cylindrical end pieces and an interposed transverse intermediate piece, the method comprising friction welding the end pieces to the intermediate piece, where the intermediate piece is held in a cavit... | 01/01/2002 |
| 6326089 | Multi-element composite object A multi-element composite object composed from first, second, and third metal components is provided, wherein the first metal and the third metal are weld incompatible. The multi-element composite object includes a first component fabricated from a first ... | 12/04/2001 |
| 6247634 | Method and apparatus for forming a stir welded joint at meeting cylindrical edges A knock-down anvil assembly provides a rotary anvil ring inside the cylindrical end portions of tank sections to be stir welded together as a butt joint, and an external reactive roller unit is provided which bears against the outer faces of these end por... | 06/19/2001 |
| 6213379 | Friction plug welding Friction plug welding (FPW) usage is advantageous for friction stir welding (FSW) hole close-outs and weld repairs in 2195 Al--Cu--Li fusion or friction stir welds. Current fusion welding methods of Al--Cu--Li have produced welds containing varied defects... | 04/10/2001 |
| 6138896 | Superspeed inertia welding First and second superalloy workpieces are inertia welded together by rotating the first workpiece to an initial contact speed greater than about 750 surface feet per minute, and frictionally engaging under a weld load the first and second workpieces to e... | 10/31/2000 |
| 6079609 | Method of joining a member of soft magnetic material to a member of hardened material using a friction weld A method of joining a magnetic armature of an electromagnetic actuator to a shaft is provided. The method includes holding the armature stationary while spinning the shaft. The spinning shaft is then pressing against the stationary armature such that fric... | 06/27/2000 |
| 5930332 | Method for connecting a molybdenum-based alloy structure to a structure formed from a more ductile alloy, and related articles A new method for forming a joint between a molybdenum-based alloy structure and a structure formed from a more ductile alloy is disclosed. The method involves the solid-state bonding of the two structures, which can be carried out by a variety of techniqu... | 07/27/1999 |
