Class / Patent application number | Description | Number of patent applications / Date published |
228114000 | With treating other than heating | 28 |
20100096438 | JOINING METHOD AND FRICTION STIR WELDING METHOD - A method of welding that realizes enhancements of airtightness and watertightness at weld area: and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding comprising the first primary welding step of carrying out a friction stir welding on the abutting portion (J | 04-22-2010 |
20100163604 | METHOD OF AND APPARATUS FOR SPLICING METAL STRIPS - A method of splicing a trailing end of a downstream metal strip to the leading end of an upstream metal strip. The method has the steps of overlapping the leading end of the upstream strip with the trailing end of the downstream strip, and thereafter friction welding the overlapping ends together at a plurality of spots at which respective spot welds are thereby formed. | 07-01-2010 |
20100181369 | METHOD OF WELDING HEATED LOG SEGMENTS IN AN ALUMINUM EXTRUSION PROCESS - A method of processing heated metal logs in a metal extrusion process. The remainder of each log is attached to the succeeding log. Specifically, the abutted ends of the two log segments are aligned with a saw. The saw is actuated to simultaneously remove material from both of the abutted ends. The cut ends are friction welded together through relative rotation of the log segments. The process creates a heated log column that is effectively endless, eliminating log remainders. | 07-22-2010 |
20100213245 | METHOD OF WELDING TUBULAR COMPONENTS - Two tubular components ( | 08-26-2010 |
20110062219 | Reinforcement of Friction Plug Welds - A hole in a metal workpiece is filled by friction plug welding. The weld between the workpiece and the plug is reinforced by a weld land in the workpiece that surrounds one end of the plug. The weld land is formed by extruding a portion of the plug into a cavity in an anvil used in the welding process. | 03-17-2011 |
20110068150 | Friction Stir Weld Assembly And Associated Method For Mitigating Distortion In A Friction Stir Weld Joint - A method of mitigating distortion in a friction stir weld joint as well as an associated friction stir weld assembly for mitigating distortion in a friction stir weld joint are provided. In this regard, a workpiece having a friction stir weld joint and associated distortion may be provided. Force may then be selectively applied to the workpiece along at least a portion of friction stir weld joint. The application of force induces plastic deformation along at least the portion of the friction stir weld joint in order to reduce the distortion of the workpiece. Force may be applied, for example, by moving a roller, such as a hardened cylindrical roller having chamfered edges, along at least a portion of the friction stir weld joint in order to apply a compressive force. | 03-24-2011 |
20110089223 | METHOD OF MAKING A CONTROL ARM - In a method of making a control arm, a middle piece is held in a mounting of a rotary friction welding machine so as to be constraint against rotation and movement in an axial direction. End pieces are rotated in synchronism on opposite ends of the middle piece so as to rub friction welding sites of the end pieces and friction welding sites on the middle piece on one another to initiate a friction welding process. After releasing the middle piece, the friction welding sites are compressed through axial displacement of at least one of the end pieces. | 04-21-2011 |
20110132971 | METHOD OF FRICTION WELDING OF A PISTON HAVING A COOLING DUCT - A method of friction welding a head part to a skirt part of a piston having a hollow cooling duct in which the internal connection surface of the first part to be welded is reciprocally arranged with an internal connection surface of the second part to be friction welded, so that they form a unsymmetrical contact area, so that the resulting weld of the first and the second parts produces a weld bead that is located predominantly outside of the hollow cooling duct. The unsymmetrical contact area can be formed by chamfered, angled edge surfaces that produce, for example, a wedge-shaped space, or partially matched, inter-fitting surfaces that remain out of contact and produce a gap at sides facing the hollow space. | 06-09-2011 |
20110198389 | Friction Welding Apparatus - This invention relates to a friction welding apparatus, and more particularly, but not exclusively, to a modular friction welding apparatus suitable for in-situ reparation of blind holes in pipes. The friction welding apparatus includes a frame assembly, a spindle assembly for holding a friction welding consumable; and a drive assembly for driving a spindle of the spindle assembly. The spindle assembly and the drive assembly are releasably securable to the frame assembly so as to form a modular friction welding apparatus, and the frame assembly is furthermore removable securable to an object to be welded. | 08-18-2011 |
20110198390 | METHOD FOR PRODUCING OR REPAIRING INTEGRALLY BLADED GAS TURBINE ROTORS - The invention relates to a method for producing integrally bladed gas turbine rotors, especially of integrally bladed turbine rotors, wherein rotating blades ( | 08-18-2011 |
20120160899 | PISTON ROD MANUFACTURING METHOD - A piston rod manufacturing method for manufacturing a piston rod by joining together respective end surfaces of a rod main body and a rod head, includes a first step of hollowing out respective axial center portions of the rod main body and the rod head from the respective end surfaces thereof in order to remove impurities caused by center segregation, and a second step of joining together the respective end surfaces of the rod main body and the rod head by friction welding. | 06-28-2012 |
20120181324 | JOINING METHOD AND JOINING TOOL - A joining method of a pair of workpieces, each workpiece having a non-flat portion and an abutting surface continuous to the non-flat portion, wherein the method provides an extension portion on each of the workpieces, the extension portion having a surface continuous with the non-flat portion and the abutting surface and projecting outward from the workpiece, and holding the workpieces so as to form a joining line between the non-flat portions of the respective workpieces by bringing the abutting surfaces thereof into contact with each other. Also disclosed is a joining tool having a substantially cylindrical shoulder portion and a projection projecting outward from a tip surface of the shoulder portion. | 07-19-2012 |
20120325896 | Joining Method and Friction Stir Welding Method - A method of welding that realizes enhancements of airtightness and watertightness at a weld area and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding including the first primary welding step of carrying out a friction stir welding on the abutting portion (J | 12-27-2012 |
20120325897 | Joining Method and Friction Stir Welding Method - A method of welding that realizes enhancements of airtightness and watertightness at weld area and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding including the first primary welding step of carrying out a friction stir welding on the abutting portion (J | 12-27-2012 |
20130037602 | FRICTION STIR WELDING METHOD OF METALLIC HOUSING - A friction stir welding method of manufacturing a metallic housing including electronic device housing is described as follow. A first workpiece and a second workpiece made of metal are provided. The first workpiece is attached to the second workpiece. A joining tool is provided, which includes a shaft shoulder and a stir pin extending from a friction surface of the shaft shoulder. A diameter of the shaft shoulder is in a range from about | 02-14-2013 |
20130056525 | PRESSING A WELD USING THE FRICTION AGITATION WELDING PROCESS FOR BETTER SURFACE ADJUSTMENT - A friction agitation welding process for the joining of abutting plate-shaped workpieces consisting of an aluminium alloy, wherein a rotating Bobbin tool is moved along a weld between the two plate-shaped workpieces during feed, exerting a first and a second contact pressing force on first and second sides, respectively, and wherein said Bobbin tool is subjected to an additional axial force during its movement along the weld to plastically deform the area of the created welding seam such that the welding seam is pressed towards one side of the plate-shaped workpieces while forming a welding seam elevation protruding opposite from the workpiece surface. | 03-07-2013 |
20130068825 | MATERIAL SURFACE MODIFICATION USING FRICTION STIR WELDING HYBRID PROCESS - A system and method for modifying a work piece surface of high melting temperature materials such as Advanced High Strength Steels, wherein a friction stir welding tool may include cutting elements located on the outside diameter of a collar assembly, wherein the collar assembly may be retrofitted for existing friction stir welding tools, or may be designed as a custom attachment for a new hybrid friction stir welding tool, wherein the surface of the work piece may be modified by removing detrimental flash and burr created during operation of the friction stir welding tool. | 03-21-2013 |
20130098973 | METHODS TO FABRICATE FULLY ENCLOSED HOLLOW STRUCTURES USING FRICTION STIR WELDING - A method is taught for creating a hollow sphere that is created by joining two cylinders together that have a semispherical hollow formed in the ends being joined together, wherein a metallic reinforcing disk is inserted at an interface between the two ends of the cylinders, wherein the two cylinders and reinforcing disk are joined using friction stir welding to create an inner sphere from the two hemispherical hollows that is bisected by the metallic reinforcing disk, and wherein the joined cylinders and reinforcing disk are machined to thereby create an outer spherical surface that is centered around the inner sphere. | 04-25-2013 |
20130206818 | SYSTEM AND METHOD FOR HOLDING MATERIALS HAVING ARCUATE SURFACES IN PLACE FOR FRICTION STIR WELDING OR PROCESSING - A system and method for holding a friction stir processing material in place on a substrate having a curved surface for the purpose of mixing the friction stir processing material into the curved substrate using a solid-state process, wherein the system includes selecting one of a variety of mechanical means of attaching the friction stir processing material to the substrate that will enable friction stir processing to be performed that is economical, efficient and safe. | 08-15-2013 |
20130206819 | PROCESS FOR CONNECTING TWO AIRCRAFT FUSELAGE SEGMENTS BY MEANS OF FRICTION TWIST WELDING - A process for connecting two aircraft fuselage segments and a reinforcing profile arranged in the joint region of the two aircraft fuselage segments by friction twist welding using a rotating tool, wherein a cover plate is brought onto the aircraft fuselage segments to be connected above the joint regions and after the friction twist welding the remainder of the cover plate is milled off. This makes it possible to overcome significantly greater gap tolerances in the edges to be connected so that the dimension tolerance requirements for the aircraft fuselage segments can be reduced. Furthermore, a smooth surface can be achieved in the welding region. | 08-15-2013 |
20130233910 | Joining Method and Friction Stir Welding Method - A method of welding that realizes enhancements of airtightness and watertightness at weld area and a method of welding and method of friction stir welding that attain an enhancement of welding operation efficiency/speed. There is provided a method of welding including the first primary welding step of carrying out a friction stir welding on the abutting portion (J | 09-12-2013 |
20130240609 | Welding in Preparation for Superplastic Forming - A component is formed by welding a plurality of sheets of metal to form a blank with a number of weld nuggets, placing the blank between a die section and a lid section, heating the die section to heat the blank, and introducing a pressurized gas between the lid section and the die section to press the blank into a mold in the die section to form a component. The number of weld nuggets has a desired thickness ratio between about 1.1 to about 1.25 such that the plurality of sheets of metal and the component formed have a number of characteristics that are substantially the same. | 09-19-2013 |
20130299561 | FRICTION STIR JOINING OF CURVED SURFACES - A system and method for joining curved surfaces such as pipes by obtaining pipes having additional rough stock material on the pipe ends, the rough stock material being precision machine processed to prepare complementary face profiles on each of the curved surfaces and then performing friction stir joining of the pipes to obtain a joint that has fewer defects than joints created from conventional welding. | 11-14-2013 |
20140027497 | Method of Manufacturing Coiled Tubing Using Multi-Pass Friction Stir Welding - A method for manufacturing a long length of coiled metal tubing or the like using friction stir welding. Successive lengths of metal strip are friction stir welded using a three-pass welding technique to eliminate any edge defects in the resulting strip. The method includes one or more three-pass friction stir welding routines, each of which includes a first pass performed using a tool having a first rotational direction and a spiral bit pattern corresponding to the first rotational direction; a second pass using a tool having a second rotational direction and a spiral bit pattern corresponding to the second rotational direction; and a third pass using a tool having said second rotational direction and a spiral bit pattern corresponding to the second rotational direction. | 01-30-2014 |
20140034711 | PRESSING A WELD USING THE FRICTION AGITATION WELDING PROCESS FOR BETTER SURFACE ADJUSTMENT - A friction agitation welding process for the joining of abutting plate-shaped workpieces consisting of an aluminium alloy, wherein a rotating Bobbin tool is moved along a weld between the two plate-shaped workpieces during feed, exerting a first and a second contact pressing force on first and second sides, respectively, and wherein said Bobbin tool is subjected to an additional axial force during its movement along the weld to plastically deform the area of the created welding seam such that the welding seam is pressed towards one side of the plate-shaped workpieces while forming a welding seam elevation protruding opposite from the workpiece surface. | 02-06-2014 |
20150336205 | JOINING METHOD FOR FORMING A JOINT STRUCTURE OF DIFFERENT MATERIALS - A joining method for forming a joint structure of different materials includes steps of: providing a steel member and a light metal member stacked on each other and to be joined together by friction stir welding in a non-melted state; applying a coating to the steel member; and joining the steel member and the light metal member together by rotatingly pushing a rotation tool into a joint portion of the light metal member with the steel member, generating friction heat and having the joint portion of the light metal member softened and plastically flow under the friction heat. | 11-26-2015 |
20160076376 | METHOD OF REPLACING DAMAGED AEROFOIL - A method is provided of replacing a damaged blade of an integrally bladed rotor assembly including a disc and a plurality of blades extending outwardly from a rim of the disc. The method includes the steps of: removing the damaged blade to leave a blade repair stub projecting from the rim; locating sacrificial supports at the underside of the rim beneath the repair stub, the supports projecting axially beyond the trailing and leading edges of the rim; depositing metal around the trailing and leading edges of the repair stub, the deposited metal, supported by the sacrificial supports, projecting axially beyond the trailing and leading edges of the rim; attaching a replacement blade to the repair stub by linear friction welding; and removing excess deposited metal, upset metal from the linear friction welding, and the sacrificial supports. | 03-17-2016 |
20180021880 | METHOD OF MANUFACTURING A MULTI-ALLOY AEROSPACE COMPONENT | 01-25-2018 |