Class / Patent application number | Description | Number of patent applications / Date published |
228114500 | By rotating one work surface relative to another about an axis | 31 |
20080251571 | Friction stir welding tool having a counterflow pin configuration - A friction stir welding tool having one or more tapered flats for promoting flow of weld material toward the pin terminus and one or more counter-spiraling channels or threads which for promoting flow of the weld material toward the tool shoulder. | 10-16-2008 |
20080277453 | ELEMENT MOUNTING STRUCTURE AND ELEMENT MOUNTING METHOD - An element is mounted on a carrier by removing an oxide film sufficiently. An element mounting method in which electrodes of the element are fusion bonded to electrodes of the carrier so that the element is mounted on the carrier, the method includes the steps of: positioning the electrodes of the element at electrodes of carrier respectively, one of the electrodes of the carrier is a striped electrode in an arc shape formed on a concentric circle centering one of the electrodes of the element, and another is a center electrode formed near the center location of the concentric circle; and then rubbing the striped electrode of the carrier and the electrode of the element together in a direction of the concentric circle centering the center electrode so as to fusion bond the electrodes. | 11-13-2008 |
20090001136 | Apparatus and Method for Rotational Friction Welding - A rotational friction welding apparatus and method for joining two components is disclosed. The apparatus includes a first spindle which turns and a second spindle which does not turn. A first component of the components that are to be connected together is mounted on the first, turning spindle, and a second component of the components that are to be connected together is mounted on the second, non-turning spindle, respectively, by way of a clamping device. Associated at least with the clamping device that is used to mount the first component on the first, turning spindle there is a planar toothing which for centering purposes and torque-transfer engages into a corresponding planar toothing associated with the first component. | 01-01-2009 |
20090050675 | Friction Welding Method and Components Produced From Steel and Metal Aluminide Using an Intermediary From an Ni Alloy - A method for connecting a first component from a metal aluminide or a refractory Ti alloy to a second component from steel, metal aluminide or a refractory Ti alloy, especially from a steel shaft, by friction welding is disclosed. An intermediary from an Ni alloy is inserted between the first component and the second component and friction welding is carried out. A connecting layer is produced from the intermediary and is firmly connected on both ends to the first and the second component. A turbocharger rotors and valves for internal combustion engines produced by the disclosed method is also provided. | 02-26-2009 |
20090057377 | Friction stir joining apparatus - In the friction stir joining apparatus of the present invention, a rotation control unit variably controls a rotational speed of a rotor; and a straight movement control unit controls a straight movement of the rotor so as to control a pressure applied by the rotor to the object. The tip portion of the rotating rotor is pressed against a workpiece, thus spot joining is executed. The apparatus can execute frictional stirring joining without practical trouble under simple control. | 03-05-2009 |
20090140027 | FRICTION STIR SPOT WELDING TOOL AND METHOD - A friction stir spot welding tool having a rotatably driven shank. A shoulder adjacent to one end of the shank is generally circular in shape having a concave profile while a pin having a generally triangular cross-sectional shape protrudes axially outwardly from the shoulder. To perform the spot welding operation, the shank is rotatably driven and the shoulder is plunged into the workpiece such that the pin penetrates past the workpiece interface to a predetermined depth to perform the spot weld. | 06-04-2009 |
20090159644 | MOLD AND METHOD OF MANUFACTURING THE SAME - A mold welded with a dissimilar metal member manufactured by pressingly bringing the dissimilar metal member into contact with a mold formed of copper or a copper alloy in a stationary state while rotating the dissimilar metal member at a high speed, stopping the dissimilar metal member, and providing a forced pressure larger than the pressure in the first step to the mold. The present mold solves the problems of efficient cooling and attachment of back frame. Also, a variety of problems including cutting processing loss of copper or copper alloy plate, long processing times, heat distortion and heat deterioration of copper plates, etc, can be solved. Further, welding position precision and welding strength of stud bolts can be improved. Finally, the invention concerns a mold welded with a dissimilar metal member where the mold is manufactured by the first step shown above. | 06-25-2009 |
20090224024 | Friction welding methods and friction welding apparatuses - One aspect of the present invention can include a friction welding method having a friction step for generating a friction heat by pressing the pair of works while relatively rotating the pair of works, and an upset step started before generating an approach margin at the pair of works at the friction step, restricting rotation of the pair of works relative to each other and applying an upset pressure between the pair of works. | 09-10-2009 |
20090242613 | METHOD AND APPARATUS OF FRICTION WELDING - A friction welding method includes a step of friction welding a first workpiece and a second workpiece together by pressing the first workpiece against the second workpiece relatively while rotating the two workpieces relatively, and a step of annealing the friction welded workpiece at a position adjacent to a welded portion thereof with high frequency induction heating. | 10-01-2009 |
20100001043 | METHOD AND STRUCTURE FOR JOINING MEMBERS - A method and a structure for joining members are provided which are suited for reinforcement of a shape. | 01-07-2010 |
20100089977 | FRICTION STIR WELDING OF DISSIMILAR METALS - When a friction stir weld tool penetrates the interface of two workpieces of dissimilar metal alloy materials, the resultant weld of the different alloy materials may produce a weak weld joint. Such weak joints are often experienced, for example, when attempting to form spot welds or other friction stir welds between a magnesium alloy sheet or strip and an aluminum alloy sheet or strip. It is discovered that suitable coating compositions placed at the interface of assembled workpieces can alter the composition of the friction stir weld material and strengthen the resulting bond. In the example of friction stir welds between magnesium alloy and aluminum alloy workpieces, it is found that combinations of copper, tin, and zinc, and other powders can strengthen the magnesium-containing and aluminum-containing friction stir weld material. | 04-15-2010 |
20110042445 | METHODS FOR WELDING SELF-FIXTURED PREFORMS AND ASSOCIATED METHOD - An assembly for positioning a structural assembly for friction stir welding, and a system and method for friction stir welding the structural assembly are provided. The assembly includes a substrate defining a recessed pattern therein, and at least one structural member positioned within the recessed pattern to at least partially secure the structural member therein. The structural member is positioned adjacent to the substrate and within the recessed pattern such that the substrate and structural member are formed of materials capable of being friction stir welded together. | 02-24-2011 |
20120255990 | WELDING PROCESS FOR LARGE STRUCTURES - A welding method that utilizes a friction stir welding (FSW) technique to weld large structures, for example, very large cylindrical tower sections of wind turbines. The method involves welding at least two workpieces together by metallurgically joining faying surfaces of the workpieces. The workpieces are placed together so that their faying surfaces face each other and a joint region is defined by and between the faying surfaces. The workpieces are then friction stir welded together by forcing a tool into the joint region, rotating the tool about an axis thereof to cause the tool to penetrate the joint region, and causing the tool to travel along the joint region to form a weld joint that metallurgically joins the faying surfaces and produces a welded assembly comprising the workpieces. | 10-11-2012 |
20120280021 | METHOD FOR PRODUCING AN INTEGRALLY BLADED ROTOR USING ARCUATE FRICTION WELDING, DEVICE FOR CARRYING OUT SAID METHOD, AND ROTOR PRODUCED BY MEANS OF SAID METHOD - A method for producing an integrally bladed rotor, in particular a gas turbine rotor, comprises the following steps:—Providing a blade ( | 11-08-2012 |
20130140348 | APPARATUS FOR FRICTION WELDING - Rotary friction welding apparatus comprising a clamp having a backstop for locating a part to be welded by rotary friction welding and a lateral clamp for applying lateral loads to the part to be welded; and a forge for applying forge pressure to the part to be welded when the part is located in the clamp, the clamp securing the part to be welded through a combination of forge pressure and lateral loads. The clamp has friction elements at the interface of either the lateral clamp and/or the backstop and the part to be welded. | 06-06-2013 |
20140027498 | TOOL AND METHOD FOR FRICTION STIR PROCESSING USING THE FRICTION STIR PROCESSING TOOL - A friction stir processing tool is formed from a Ni-based dual multi-phase intermetallic compound alloy containing rhenium(Re). The Ni-based dual multi-phase intermetallic compound alloy is preferably formed by casting, while gradually cooling, a melt containing all the components of the composition and is preferably heat treated after casting. Moreover, in a method for friction stir processing, a work is softened by friction heat generated when the friction stir processing tool, while rotating, is pressed against the work to be processed. The friction stir processing tool includes the Ni-based dual multi-phase intermetallic compound alloy, and therefore further high hardness is exhibited to improve abrasion resistance, so that even a long period of friction stir processing can be endured. | 01-30-2014 |
20140124564 | COATED ROTARY TOOL - The present invention is directed to a tool for friction stir welding including a base material and a coating layer formed on the base material, wherein the coating layer is formed of two or more layers, and the coating layer as a whole has a thermal permeability of 8000 J/s | 05-08-2014 |
20150097021 | SUPPORTING APPLIANCE AND BACKING ARRANGEMENT FOR USE IN FRICTION STIR WELDING - Support device ( | 04-09-2015 |
20150144680 | Method of Making Cooking Vessel with Heat Conduction - A cooking vessel is made of metal material and includes a vessel body. The vessel body has a heat conducting disc made of aluminum material. A method of making the cooking vessel contains steps of: precast molding the heat conducting disc so as to y form a plurality of ribs or circular grooves which facilitate heating after placing the cooking vessel on a stove and heating the cooking vessel by ways of the stove; clamping a vessel bottom and the heat conducting disc by using a mold on a friction welding machine and rotating the heat conducting disc; pushing the heat conducting disc toward the vessel bottom; friction welding the heat conducting disc with the vessel bottom. Thereby, the vessel bottom and the heat conducting disc are one piece formed securely. | 05-28-2015 |
20160023299 | Method of Making a Bracket Assembly for a Brake Assembly - A method of making a bracket assembly for a brake assembly. The method may include rotary friction welding a mounting flange and/or a brake wing to a camshaft tube that may receive a camshaft for actuating a brake pad assembly. Rotation of the mounting flange, brake wing, and/or the camshaft tube about the axis may be controlled to fix an angular position of the mounting flange with respect to the camshaft tube within a predetermined tolerance. | 01-28-2016 |
20160059345 | FRICTION-STIR WELDING TOOL, FRICTION STIR WELDING DEVICE, AND METHOD FOR MANUFACTURING WELDING MATERIAL - A friction-stir welding tool includes a front shoulder; a rear shoulder in contact with plate materials; and a probe penetrating the plate materials between the front and rear shoulders, the probe connecting the front shoulder and the rear shoulder to each other. The probe has a first screw part provided on at least one axial end section, and at least one of the front shoulder and the rear shoulder has a second screw part in threaded engagement with the first screw part, the threaded engagement changing so that the rear shoulder and the front shoulder approach each other along the axial direction as the front shoulder and the rear shoulder rotate relative to each other, and the threaded engagement with the first screw part linking at least one of the rear shoulder and the front shoulder with the probe. | 03-03-2016 |
20160074957 | FRICTION STIR WELDING APPARATUS AND FRICTION STIR WELDING METHOD - A friction stir welding apparatus includes: a rotating shaft, on which a thread for friction stirring is formed; and a drive unit rotatably supporting the rotating shaft. A rotating shoulder configured to rotate together with the rotating shaft to generate frictional heat between the rotating shoulder and back surfaces of workpieces is fixed to a distal end of the rotating shaft. The rotating shoulder is pushed against the back surfaces of the workpieces by a pushing mechanism. A stationary shoulder penetrated by the rotating shaft and configured to hold the workpieces in a sandwiching manner together with the rotating shoulder is non-rotatably mounted to the drive unit or a member connected to the drive unit. | 03-17-2016 |
20160074958 | Fabrication of Monolithic Stiffening Ribs on Metallic Sheets - An additive friction stir fabrication method and system is described which may be used to fabricate and join a rib to a metallic substrate or to repair a defect in a metallic substrate through extrusion. The method may be carried out with or without the addition of preformed ribs. One such method involves feeding a friction-stir tool with a consumable filler material such that interaction of the friction-stir tool with the substrate generates plastic deformation at an interface between the friction-stir tool and a metallic substrate to bond the plasticized filler and substrate together and extrude this material through a forming cavity to form a rib joined to the metallic substrate. Further described is a system for fabricating a rib joined to a metallic substrate through extrusion. | 03-17-2016 |
20160136754 | FRICTION STIR WELD PLUGS AND METHODS OF USING THEREOF - In one aspect of the disclosure, an article for filling an opening in an object includes a plug having a body, a first flange, and a second flange. The plug has a trailing end. The first flange is in contact with the body and extends away from the body. The second flange is in contact with the first flange and extends away from the first flange and the body. The second flange is configured to deform toward the body upon installation of the plug into the opening. This deformation of the second flange rotationally and translationally secures the plug in the opening and consolidates the plug in the opening. | 05-19-2016 |
20160151855 | FRICTION STIR WELDING METHOD | 06-02-2016 |
20160158878 | FRICTION WELDING METHOD - The present invention is a friction welding method for friction welding of metal members characterized by starting friction welding in a state inserting an insert material between surfaces of the metal members facing each other, wherein the insert material consists of a metal having a melting point (centigrade temperature) of 60 to 80% of the melting point (centigrade temperature) of the metal members, melting the insert material, and pushing the melted insert material out from between the pair of metal members. Due to this, the adverse effects due to high temperature heating like in the past are eliminated while a quality of joint equal to or better than the past is obtained in a short time period. | 06-09-2016 |
20160167161 | FRICTION STIRRING TOOL, FRICTION STIR WELDING DEVICE AND FRICTION STIR WELDING METHOD | 06-16-2016 |
20160175981 | SOLID STATE JOINING USING ADDITIVE FRICTION STIR PROCESSING | 06-23-2016 |
20160184922 | FRICTION POINT JOINING DEVICE AND FRICTION POINT JOINING METHOD - A friction point joining device has a rotary tool, a servo motor, a tool temperature measuring instrument, a material temperature measuring instrument, and a feedback device. The rotary tool abuts against the aluminum material side of a stacking body of the aluminum material and the galvanized steel sheet. The servo motor causes the rotary tool to rotate. The tool temperature measuring instrument measures a temperature of the rotary tool. The material temperature measuring instrument measures a temperature of a joint section between the aluminum material and the galvanized steel sheet. The feedback device is configured to execute feedback control of the servo motor on the basis of temperature information obtained from the tool temperature measuring instrument and the material temperature measuring instrument. | 06-30-2016 |
20160193689 | FRICTION STIR WELDING METHOD, FRICTION STIR WELDING DEVICE AND FRICTION STIR WELDED MATERIAL | 07-07-2016 |
20160250727 | FRICTION STIR WELDING: METHOD AND DEVICE FOR FILLING A HOLE AT THE END OF WELDING OR FOR REPAIRING A WELDING DEFECT | 09-01-2016 |