Using Dynamic Frictional Energy (i.e., Friction Welding) Patents (Class 228/112.1)
  • Patent number: 8420226
    Abstract: A structural member comprising at least two aluminum alloy parts displaying different property balances, said at least two parts being welded and wherein one of said parts either is (i) selected from an aluminum alloy different from the other of said at least two parts and/or (ii) is selected from an initial temper different from the other of said at least two parts, and wherein at least one of said at least two parts has been pre-aged prior to being welded, and, wherein said structural member has undergone a post-welding thermal treatment conferring a final temper to each of said at least two parts. The parts are advantageously welded by friction stir welding. Another subject of the invention is a method for manufacturing a structural member.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: April 16, 2013
    Assignee: Constellium France
    Inventors: Jean-Christophe Ehrstrom, Henri Gérard
  • Publication number: 20130087604
    Abstract: A friction stir welding tool is provided which allows for excellent wear resistance and high joining strength even in a process of joining difficult-joining materials. A friction stir welding tool of the present invention is used for a friction stir welding process and includes a base material. The base material includes a hard phase and a binder phase. The hard phase includes TiCN. The binder phase is made of an iron group metal. A mass ratio Bs of the binder phase to the base material in a region having a thickness of 20 ?m from a surface of the base material is smaller than a mass ratio Bi of the binder phase to the base material in a region beyond the thickness of 20 ?m from the surface of the base material.
    Type: Application
    Filed: December 27, 2011
    Publication date: April 11, 2013
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hideki Moriguchi, Yoshiharu Utsumi, Hiroka Miyazaki
  • Publication number: 20130082088
    Abstract: A method for repairing an aircraft component includes removing a portion of the aircraft component to create an opening within the aircraft component. The method also includes creating a patch, inserting the patch into the opening such that a welding location is defined, and coupling the patch to the aircraft component using a friction stir welding process. The friction stir welding process includes inserting a portion of a friction stir welding device into the welding location. The method also includes causing the portion of the friction stir welding device to enter an interior of the patch and removing the portion of the friction stir welding device from the patch at the ramp.
    Type: Application
    Filed: September 25, 2012
    Publication date: April 4, 2013
    Applicant: General Electric Company
    Inventor: General Electric Company
  • Patent number: 8408443
    Abstract: Modular friction welding heads and associated systems and methods are disclosed herein. A friction welding system in accordance with a particular embodiment includes a carrier fixture positioned to carry a workpiece, a head support positioned proximate to the carrier fixture, and a modular friction welding head releasably carried by the head support. At least one of the carrier fixture and the head support can have a guide structure with a constrained motion path positioned to guide relative motion between the modular friction welding head and the carrier fixture. A controller can be operatively coupled to the modular friction welding head and programmed with instructions to control the operation of the friction welding head.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 2, 2013
    Assignee: Blue Origin, LLC
    Inventors: Ray Miryekta, Christopher M. Gil
  • Patent number: 8408445
    Abstract: A vibration welding system includes a controller, welding horn, an active material element, and anvil assembly. The assembly may include an anvil body connected to a back plate and support member. The element, e.g., a piezoelectric stack or shape memory alloy, is positioned with respect to the assembly. The horn vibrates in a desirable first direction to form a weld on a work piece. The element controls any vibrations in a second direction by applying calibrated response to the anvil body in the second direction. A method for controlling undesirable vibrations in the system includes positioning the element with respect to the anvil assembly, connecting the anvil body to the support member through the back plate, vibrating the horn in a desirable first direction, and transmitting an input signal to the element to control vibration in an undesirable second direction.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 2, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Wayne W. Cai, Bongsu Kang, Chin-An Tan
  • Patent number: 8408444
    Abstract: It is an object to provide a friction stir tool excellent in productivity, high temperature strength, and wear resistance at high temperatures. The friction stir tool is formed of a Co-based alloy comprising crystal grains containing a ?? precipitate phase dispersed and precipitated therein, and a crystal grain boundary region and a precipitate phase between adjacent crystal grains, in which the precipitate phase is at least one phase selected from a ? phase, a Laves phase and a carbide phase.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: April 2, 2013
    Assignees: Hitachi, Ltd., Tohoku University
    Inventors: Seunghwan Park, Satoshi Hirano, Shinya Imano, Jun Sato, Hiroyuki Kokawa, Yutaka Sato, Kiyohito Ishida, Toshihiro Omori
  • Publication number: 20130078429
    Abstract: A friction stir welding member is formed by welding a second member to a first member in such a manner that a second member is stacked on a first member, a material property of the second member being different from a material property of the first member, a pin of a welding tool using a Friction Stir Welding technique is inserted into the second member, welding is started at one end of the second member, and the pin is pulled out at a welding terminal portion before the pin reaches the other end of the second member. A projection projecting toward the welding tool is provided integrally with the second member, the projection is formed so as to have a height that is higher than a length of the pin, and the projection is provided with the welding terminal portion.
    Type: Application
    Filed: April 9, 2012
    Publication date: March 28, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Mitsuru SAYAMA, Tsutomu Kobayashi, Tetsuya Miyahara, Shosuke Ohhama
  • Patent number: 8397928
    Abstract: A barrel made of wood, in particular oak wood, for containing a liquid, such as wine, the barrel comprising a hollow body closed by two barrel heads, each barrel head comprising an assembly of substantially rectangular wooden battens assembled parallel to one another via facing lateral faces, the barrel being characterized in that the adjacent lateral faces (101, 201) of two assembled-together battens (100, 200) are in intimate leaktight contact, with fibers of the wood of each of said battens being tangled together and held in a matrix of fused intercellular materials.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: March 19, 2013
    Assignee: Tonnellerie Taransaud
    Inventors: Vincent Lefort, Christelle Ganne-Chedeville
  • Patent number: 8397974
    Abstract: The present invention relates to tools and methods for welding, coating, repairing, or otherwise modifying the surface of a metal substrate. More specifically, embodiments of the present invention provide self-reacting friction stir welding tools which have an internal channel that allows filler materials to be added to the weld joint or otherwise friction stir processed area. Embodiments also provide friction stir tooling having upper and lower shoulders disposed at a fixed distance from one another and connected by a fixed split-pin. The tooling can be configured for automatically dispensing varying amounts of filler material into the tooling in response to variations in thickness of a substrate being processed.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: March 19, 2013
    Assignee: Aeroprobe Corporation
    Inventors: Jeffrey Patrick Schultz, Kevin Creehan
  • Patent number: 8393523
    Abstract: A method of performing ultrasonic stir welding uses a welding head assembly to include a plate and a rod passing through the plate. The rod is rotatable about a longitudinal axis thereof. In the method, the rod is rotated about its longitudinal axis during a welding operation. During the welding operation, a series of on-off ultrasonic pulses are applied to the rod such that they propagate parallel to the rod's longitudinal axis. At least a pulse rate associated with the on-off ultrasonic pulses is controlled.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: March 12, 2013
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Patent number: 8393524
    Abstract: A counter-rotating spindle includes a shoulder tool, a pin tool inserted in the shoulder tool, a first motor that is connected with the pin tool and rotates the pin tool, and a second motor that is connected with the shoulder tool and rotates the shoulder tool. The direction and the speed of the rotation for the pin tool may be selected independently from the speed and direction of rotation of the shoulder tool enabling optimization of the friction stir welding process. Counter-rotating the pin tool and the shoulder tool may improve the mixing abilities and efficiency of the pin tool and may prevent the galling effect between the pin tool and the shoulder tool. The counter-rotating spindle may be used, for example, for continuous path friction stir welding and spot welding of aluminum and its alloys, including cast alloys, as well as joining similar and dissimilar alloys.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: March 12, 2013
    Assignee: The Boeing Company
    Inventors: Kurt A. Burton, Mike P. Matlack
  • Patent number: 8393520
    Abstract: An ultrasonic stir welding system includes a welding head assembly having a plate and a rod passing through the plate. The rod is rotatable about a longitudinal axis thereof. During a welding operation, ultrasonic pulses are applied to the rod as it rotates about its longitudinal axis. The ultrasonic pulses are applied in such a way that they propagate parallel to the longitudinal axis of the rod.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 12, 2013
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Patent number: 8393519
    Abstract: The invention provides a method of assembling together two thin plane parts (1, 2) by friction welding. A main sheet (19) made of a material having high thermal conductivity is held against the parts (1, 2) for assembly. The main sheet (19) picks up the heat induced by the friction of a welding pin (5) against the parts (1, 2) for the purpose of forming the weld bead (17), and it dissipates this heat by radiation. Temperature regulation of the welding operation is obtained by the main sheet (19), ensuring that no localized excess heating occurs in the welding zone. The main sheet (19) is based on copper and presents a thickness that is less than the thickness of the parts (1, 2).
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 12, 2013
    Assignee: Eurocopter
    Inventors: Delphine Allehaux, Jean-Loup Gatti
  • Patent number: 8393521
    Abstract: A method of producing a welded assembly from a first metal part and a second metal part includes bringing the first metal part and the second metal part into contact with one another at a joint region while providing a flash ring separator adjacent the joint region configured to intercept and separate flash. After heating the joint region, the first and second metal parts are forced together to join the first metal part to the second metal part, extruding metal flash from the joint region. The extruded flash impinges on the flash ring separator, forming a flash ring having at least one indentation. During subsequent machining of the welded assembly to remove the flash ring, the flash ring may fragment at the indentation, so that it does not cause damage by becoming hung around the assembly.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 12, 2013
    Assignee: Caterpillar Inc.
    Inventors: Dennis Sachaschik, Thomas K. Yeung, Russell D. Carpenter, Frank K. Anthony, Tom G. Hamric, Joy Elaine Allen, Marlon Cobbins, Joseph Paluga
  • Patent number: 8393522
    Abstract: 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.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: March 12, 2013
    Assignee: Suzuki Motor Corporation
    Inventors: Ryo Yamauchi, Kentaro Kobari
  • Publication number: 20130056525
    Abstract: 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.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 7, 2013
    Applicant: AIRBUS OPERATIONS GMBH
    Inventor: Hartmut Ostersehlte
  • Patent number: 8387852
    Abstract: A method of making tailored blanks in accordance with one embodiment comprises the steps of: (a) friction welding first and second structural members together along a straight interface to form a weld joint, each of the first and second structural members having a respective polygonal profile that is not a parallelogram; and (b) machining the first and second structural members to form first and second curved contours that each intersect the weld joint.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: March 5, 2013
    Assignee: The Boeing Company
    Inventors: Robert R. Bevans, Edward H. Gerding
  • Publication number: 20130052474
    Abstract: A Ni-base alloy large-size member comprises a base material having strip-shaped carbide segregation, and a homogeneous modified layer formed on a welding groove surface by treatment using Friction stir processing and solution treatment. In addition, a Ni-base alloy welded structure is manufactured by welding the Ni-base alloy large-size member with other member constituting the Ni-base alloy welded structure, such as a member formed of ferrite steel or another Ni-base alloy large-size member under the condition that weld penetration depth is shallower than the thickness of the modified layer.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 28, 2013
    Inventors: Shinya IMANO, Hironori Kamoshida, Satoshi Hirano, Park Seunghwan, Takehiko Yoshida
  • Publication number: 20130043346
    Abstract: Aircraft fuselage structures have reinforcement members in the vicinity of the stringer openings formed in frame members and are rigidly lap joined to a surface region of the frame members by a friction stir weld region. Such aircraft fuselage structural components may thus be provided with plural longitudinally spaced-apart frame members defining a transversal cross-section of an aircraft fuselage section, the frame members having a plurality of stringer holes therethrough, and plural longitudinally oriented stringers each being positioned within a respective one of the stringer holes of the frame member. The reinforcement members are lap joined to corresponding surfaces of frame members in the vicinity of the stringer holes such that the reinforcement members are joined rigidly to the corresponding surfaces of the frame members by a friction stir weld region.
    Type: Application
    Filed: October 4, 2012
    Publication date: February 21, 2013
    Applicant: EMBRAER S.A.
    Inventor: EMBRAER S.A.
  • Patent number: 8376210
    Abstract: A linear friction welding system and method in one embodiment includes a first motor configured to rotate a first power shaft, a second motor configured to rotate a second power shaft, a memory including program instructions, and a controller operably connected to the first motor, the second motor, and the memory, and configured to execute the program instructions to identify a first current oscillation amplitude of a ram operably connected to the first power shaft and the second power shaft, determine a second desired oscillation amplitude for the ram, determine a minimum shift in relative angle between the first motor and the second motor to achieve the second desired oscillation amplitude, allocate the minimum shift in relative angle between the first motor and the second motor, and control the first motor and the second motor based upon the allocated minimum shift in relative angle.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: February 19, 2013
    Assignee: APCI, LLC
    Inventors: Stephen A. Johnson, Thaddeus W. Gorski
  • Patent number: 8375581
    Abstract: A method and apparatus for fixturing an airfoil stub during linear friction welding are described. Critical clamping support structures are manufactured by a direct digital manufacturing process such as direct metal laser sintering to minimize time and expense of the process.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: February 19, 2013
    Assignee: United Technologies Corporation
    Inventors: James Romanelli, Wangen Lin, Robert P. Delisle, Herbert A. Chin, James J. Moor, Jesse R. Boyer
  • Publication number: 20130037601
    Abstract: A method for forming a joint between a tube and a sheet includes forming an anvil at least within the tube, and welding the tube to the sheet in the presence of the anvil. The anvil includes an anchor which is placed within the tube near or at the joint to be formed. At least one washer is placed over the end of the anchor that is near the joint to be formed. A threaded fastener is then placed into the anchor to securely hold the anchor within the tube and to provide a backing substantial enough so that a friction stir weld can be formed. The threaded fastener and the washer can be used as a guide for the friction stir weld. Once the weld is completed, the anvil can be removed. The weld can be further processed to remove burrs and other material.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 14, 2013
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Michael R. ELLER, Zhixian LI
  • Patent number: 8371014
    Abstract: A method of forming a metallic container includes the steps of providing body and lid portions, placing the body and lid portions together, keeping portions of the body and lid portions in contact with one another, and reciprocally rotating the lid portion with respect to the body portion, thereby generating frictional heat and forming a friction weld therebetween. An apparatus for attaching the lid and body portions of a metallic container includes a base to support the body, a support assembly to support a flange of the body, and a sonitrode for contacting a flange of the lid, wherein the flanges of the lid and body are held together between the support assembly and the sonitrode. A motor reciprocally rotates the sonitrode relative to the support assembly, thereby moving the flanges relative one another to generate frictional heat and create a friction weld therebetween.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 12, 2013
    Assignee: New Sonic Technologies, LLC
    Inventor: James T. Williamson
  • Publication number: 20130032630
    Abstract: A friction stir welding repairing method for repairing a defective welding area, in which the defective welding area is defined in a predetermined welding area of a metallic housing, is described as follows. A repairing welding tool has a main portion and a stir end extending from an end of the main portion, and a diameter of the stir end is larger than a diameter of the defective welding area. The repairing welding tool is rotated and inserted to a region of the predetermined welding area adjacent to the defective welding area. The repairing welding tool is rotated and moved across the defective welding area. The repairing welding tool is pulled out of the predetermined welding area, and then the defective welding area is cooled.
    Type: Application
    Filed: December 12, 2011
    Publication date: February 7, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEI-TING WANG, CHUN-LANG LEE, YU-WEN CHIU
  • Patent number: 8360302
    Abstract: The invention relates to a method for producing integrally bladed gas turbine rotors, especially of integrally bladed turbine rotors, wherein rotating blades (10) are joined to a rotor base (11) with the intermediate disposal of an adapter (14) in such a way that first an adapter is joined to a connecting section (15) of each rotating blade to be connected to the rotor base, and that subsequently each rotating blade (10) is joined to a connecting section (16) of rotor base (11) via adapter (14) connected to said blade. According to the invention, each adapter (14) is connected to connecting section (15) of the respective rotating blade (10) by welding, each rotating blade (10) being connected to the respective connecting section of the rotor base by inductive high-frequency pressure welding via adapter (14) connected to the blade.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: January 29, 2013
    Assignee: MTU Aero Engines GmbH
    Inventor: Karl-Hermann Richter
  • Publication number: 20130011183
    Abstract: Disclosed is a joined heterogeneous material in which a carbon steel material (11) and an aluminum material (12) have joined via friction-stir welding. The region of a weld zone (15) with a low lift-up amount in a plastic flow area (17) created during friction-stir welding is located on one side of the aluminum material (12) with respect to the weld zone (15), created by a welding probe (14). The region of the weld zone (15) with a high plastic flow area (17) lift-up amount is located on the other side of the aluminum material (12).
    Type: Application
    Filed: February 21, 2011
    Publication date: January 10, 2013
    Applicant: Honda Motor Co., Ltd.
    Inventors: Takanori Yahaba, Tsutomu Kobayashi
  • Publication number: 20130009442
    Abstract: Seat pan assemblies and methods of making the same are disclosed. In one embodiment, a plastic seat pan is disclosed which encapsulates a metal front lift rod and a portion of a metal mesh seat support. Other embodiments are also disclosed.
    Type: Application
    Filed: February 9, 2012
    Publication date: January 10, 2013
    Inventor: Matthew Burnham
  • Patent number: 8348136
    Abstract: A method of performing friction stir welding is provided herein. More specifically, traditional friction stir welding requires a rotatable head that is forced against a plurality of work pieces to bond the same. The rotational and normal forces generated by the friction stir welding tool are generally reacted by a backing plate, anvil, mandrel or other mechanisms, such hardware are subject to the applied forces and are often supported with additional internal supports. Conversely, a method of performing a friction stir weld is described that omits the need for such a backing member and internal supports as it is performed using a self reacting pin tool.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: January 8, 2013
    Assignee: United Launch Alliance, LLC
    Inventors: David M. Potter, Richard K. Hansen
  • Patent number: 8342382
    Abstract: A method of determining the quality of a friction weld between two components, the method comprising joining two components together using a friction welding process, measuring the loss of length of the components as a function of time during the friction welding process, determining the double differential with respect to time of the loss in length of the components as a function of time, determining the quality of the friction weld by calculating the R2 value of the linear fit to the loss in length of the components as a function of time over a defined time period, determining the end of the defined time period by identifying the start of the final positive peak of the double differential with respect to time of the loss of length of the components as a function of time, calculating R2 from the least square difference of the linear fit over the defined time period of the loss of length of the components as a function of time and comparing the calculated value of R2 with acceptable values of R2 to determine
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: January 1, 2013
    Assignee: Rolls-Royce PLC
    Inventors: Gavin J Baxter, Mark G Horwell, Simon E Bray
  • Publication number: 20120325894
    Abstract: In the method for welding a hollow structure of the present invention, a rib is placed between a first joining member and a second joining member, and friction stir welding and fixing a place where the rib is placed between the first and the second joining member are conducted. Thus, friction stir welding is accomplished without changing the shape of an extrusion part or partly changing the shape of the extrusion part with insertion of a simply shaped rib.
    Type: Application
    Filed: June 21, 2011
    Publication date: December 27, 2012
    Applicants: Research Institute of Industrial Science & Technology, WINXEN CO., LTD., HYUNDAI ROTEM COMPANY
    Inventors: Chang-Kun CHUN, Woong-Seong Chang, Tae-Sung Roh, In-Gyu Park
  • Publication number: 20120325897
    Abstract: 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 (J1) of metal members (1,1) from the surface (12) side of metal member (1) and the second primary welding step of carrying out a friction stir welding on the abutting portion (J1) from the reverse face (13) side of the member (1), wherein in the second primary welding step, the friction stir welding is performed while penetrating a stirring pin (B2) of rotation tool (B) in plasticized region (W1) formed in the first primary welding step.
    Type: Application
    Filed: September 5, 2012
    Publication date: December 27, 2012
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hayato SATO, Hisashi Hori
  • Publication number: 20120325895
    Abstract: A multi-shouldered friction stir welding tool comprises an exterior threaded solid pin having a diameter and a length; a shoulder having a threadless inner diameter slightly larger than the diameter of the exterior threaded solid pin and at least one substantially radial threaded set screw hole; an monolithic shoulder-shank having a threadless inner diameter slightly larger than the diameter of the exterior threaded solid pin and at least one substantially radial threaded set screw hole; a pair of locking nuts having a threadless outer diameter and a threaded inner diameter operably compatable with the exterior threaded solid pin, wherein the shoulder and the monolithic shoulder-shank are capable of slidable engagement with the exterior threaded solid pin along the length of the exterior threaded solid pin to set a space slightly larger than a thickness of a work piece to be welded.
    Type: Application
    Filed: July 30, 2012
    Publication date: December 27, 2012
    Applicant: ALCOA INC.
    Inventors: Israel Stol, John W. Cobes, Trent A. Chontas, Joseph M. Fridy
  • Patent number: 8337998
    Abstract: A joined body of dissimilar metals which is produced by joining a steel material and an aluminum alloy material, wherein the steel material to be joined has a specific composition and is specified in the compositions of outer surface oxide layer and inner oxide layer and the aluminum alloy material to be joined is an Al—Mg-base or Al—Zn—Mg-base aluminum alloy having a specific composition. In the joined body of dissimilar metals, a content of Fe at a joint interface on the aluminum alloy material side is regulated, and a reaction layer of Fe and Al is formed at the joint interface of the joined body of dissimilar metals. The joined body of dissimilar metals exhibits high joint strength.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: December 25, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Mikako Takeda, Mamoru Nagao, Masao Kinefuchi
  • Patent number: 8333314
    Abstract: A structure for joining members which is suited for joining of thin members together and suited for joining of members made of different materials. The structure includes a nut, a first member superposed on the nut such that a preliminarily formed hole on the first member is contiguous with the threaded hole of the nut, and a second member superposed on the first member so as to cover the hole.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: December 18, 2012
    Assignee: Hino Motors, Ltd.
    Inventor: Hiroshi Fukuda
  • Publication number: 20120298727
    Abstract: One embodiment of a friction stir welding apparatus comprises two friction stir welding tools on a carriage. The first friction stir welding tool is capable of rotating in a first direction. The second friction stir welding tool is capable of rotating in a second direction, counter to the first direction. The first friction stir welding tool and the second friction stir welding tool are operable to weld simultaneously and in tandem along an intersection of at least two work pieces.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 29, 2012
    Applicant: ALCOA INC.
    Inventors: Israel Stol, James T. Burg
  • Patent number: 8317080
    Abstract: 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.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: November 27, 2012
    Assignee: Megastir Technologies LLC
    Inventors: Russell Kingston, Murray Mahoney, Russell J Steel, Scott M. Packer
  • Patent number: 8317079
    Abstract: A clinching method includes establishing a first layer on a second layer. The first layer has an aperture formed therein and is thinner than the second layer. A rotating punch is engaged with the second layer through the aperture in the first layer, thereby generating frictional heat and softening the second layer. The rotating punch is configured with at least a first diameter, a shoulder, and a second diameter that is larger than the first diameter. The rotating punch is pressed into the softened second layer, thereby causing at least some of the second layer to: back extrude through an annulus defined by the aperture in the first layer and at least one of the diameters of the punch; contact the shoulder of the rotating punch; and extend onto a surface of the first layer adjacent the aperture.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: November 27, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Jon T. Carter
  • Publication number: 20120292080
    Abstract: A method of manufacturing a composite conductive component comprising the steps of providing at least two blanks of metallic material, said blanks consisting of dissimilar metallic materials; placing said blanks in edge to edge or in partially overlapping relationship with one another, solid state joining said blanks to each other, by rolling or welding, so as to form a composite body, rolling said composite body along the joint over the entire width of the composite body to reduce the thickness thereof, and cutting the rolled composite body across the joint to produce at least two composite conductive components, each comprising the metallic materials of said at least two blanks and having a joint between said at least two different metallic materials. A composite conductive component comprises at least a first portion of a first metallic material and at least a second portion of a second metallic material, said first and second metallic materials being dissimilar from each other is produced by the method.
    Type: Application
    Filed: December 3, 2010
    Publication date: November 22, 2012
    Inventor: Sören Kahl
  • Publication number: 20120292541
    Abstract: A hydraulic housing of an electrohydraulic valve controller of an internal combustion engine which has a hydraulic housing body and guide cylinder for a pump piston that is joined to the hydraulic housing body. The guide cylinder is joined to the hydraulic housing body by a friction welded connection.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 22, 2012
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Andreas RINNERT, Heiko SABLOTNY, Thomas KREMER
  • Patent number: 8308051
    Abstract: A method of welding dissimilar metal materials, wherein a high melting-point material and a low melting-point material which are dissimilar metal materials having melting points different from each other are positioned to a planned welding position, and a rotatable tool is pressed to and then inserted into the high melting-point material to thereby perform a friction-stir-welding between the high melting-point material and the low melting-point material to each other. The friction-stir-welding between the high melting-point material and the low melting-point material is performed by disposing an intervening piece made from a same material as the high melting-point material between the rotatable tool and the high melting-point material.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: November 13, 2012
    Assignee: Suzuki Motor Corporation
    Inventors: Tomonobu Hatakeyama, Gouki Yotsuya
  • Publication number: 20120283031
    Abstract: A propeller shaft includes a first shaft having a yoke at one end, a second shaft slidably connected to the other end of the first shaft, and a surface treated member which is arranged at a connecting portion, at which the first shaft and the second shaft are connected to each other, and to which surface treatment for improving slidability of the second shaft with respect to the first shaft is applied. The surface treated member is formed by a substrate which is separate from the first shaft and the second shaft and to which the surface treatment has been applied. The surface treated member is arranged at the connecting portion, at which the first shaft and the second shaft are connected to each other, after the surface treatment is applied.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 8, 2012
    Applicant: JTEKT CORPORATION
    Inventors: Tomoki OGAWA, Satoshi ARAKI, Yukinobu NISHIYAMA, Yoshinori SATOU, Kazunori AOKI
  • Patent number: 8302834
    Abstract: 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 include a coating comprised of a superabrasive material, the pin and shoulder being designed to reduce stress risers, disposing a collar around a portion of the shoulder and the shank to thereby prevent movement of the shoulder relative to the shank, and incorporating thermal management by providing a thermal flow barrier between the shoulder and the shank, and between the collar and the tool.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 6, 2012
    Assignees: MegaStar Technologies LLC, Bringham Young University
    Inventors: Tracy W. Nelson, Carl D. Sorensen, Scott M. Packer, Paul Allen Felter
  • Publication number: 20120273555
    Abstract: Solid state processing is performed on a workpiece that operates alone or is a component of equipment used in various demanding, harsh and wearing environments in which failure of a product could compromise safety or the environment or otherwise result in significant cost for repair or replacement, wherein the solid state processing performed by using a tool capable of friction stir processing, friction stir mixing, or friction stir welding results in a workpiece that offers a longer life-cycle and/or improved performance and/or improved reliability as a result of the solid state processing.
    Type: Application
    Filed: October 26, 2011
    Publication date: November 1, 2012
    Applicant: MEGASTIR TECHNOLOGIES LLC
    Inventors: Richard August Flak, Scott M. Packer, Russell J. Steel, Monte E. Russell, Brian E. Taylor
  • Publication number: 20120273113
    Abstract: A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.
    Type: Application
    Filed: June 14, 2012
    Publication date: November 1, 2012
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Yuri Hovanski, Glenn J. Grant, Saumyadeep Jana, Karl F. Mattlin
  • Publication number: 20120275090
    Abstract: A metallic housing for an electronic device, the metallic housing includes a main body defining a receiving chamber for receiving electronic components and an opening communicating with the receiving chamber, and a covering plate positioned on the main body adjacent to a side of the main body. The covering plate is welded to the main body by friction stir welding and a welded region is formed on a side surface of the metallic housing such that the welded region is smooth with the main body and the covering plate. A method for making the metallic housing and an electronic device using the metallic housing is also disclosed.
    Type: Application
    Filed: June 13, 2011
    Publication date: November 1, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEI-TING WANG, YU-WEN CHIU, CHUN-LANG LEE
  • Patent number: 8286852
    Abstract: 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.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: October 16, 2012
    Assignee: Gesenkschmiede Schneider GmbH
    Inventors: Peter Kolbe, Ernst-Peter Schmitz
  • Publication number: 20120258332
    Abstract: A method of welding dissimilar metal materials, wherein a high melting-point material and a low melting-point material which are dissimilar metal materials having melting points different from each other are positioned to a planned welding position, and a rotatable tool is pressed to and then inserted into the high melting-point material to thereby perform a friction-stir-welding between the high melting-point material and the low melting-point material to each other. The friction-stir-welding between the high melting-point material and the low melting-point material is performed by disposing an intervening piece made from a same material as the high melting-point material between the rotatable tool and the high melting-point material.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 11, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Tomonobu HATAKEYAMA, Gouki YOTSUYA
  • Patent number: 8281977
    Abstract: A method of welding includes a first primary welding step of carrying out a friction stir welding on the abutting portion of metal members from a first surface of a metal member. In a second primary welding step, the abutting portion is friction stir welded from the reverse face side of the member, while penetrating a stirring pin of rotation tool in a plasticized region formed in the first primary welding step.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: October 9, 2012
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Hayato Sato, Hisashi Hori
  • Publication number: 20120248175
    Abstract: There is provided a tool for friction stir welding, which is capable of promoting temperature rise of materials to be joined during joining to achieve friction stir welding in a short time, is excellent in heat insulating property of a coating layer, and is excellent in oxidation resistance and wear resistance. A tool for friction stir welding according to the present invention is 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 one or more layers, and at least one layer of the coating layer has a thermal permeability of 5000 J/s0.5·m2·K or less.
    Type: Application
    Filed: December 13, 2010
    Publication date: October 4, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hideki Moriguchi, Yoshiharu Utsumi, Hiroka Miyazaki
  • Patent number: RE43846
    Abstract: A bonding structure for a container member is disclosed. The container member has an opening and a covering member for covering the opening. The container member and covering member are abutted with each other and bonded by a friction stir welding operation. The bonding structure for the container and covering members comprises a bonding portion and a backing member. The bonding portion of the container member and the covering member is formed by inserting a friction stir welding tool into an abutting portion of the container member and the covering member. The backing member is provided for obstructing a plastic flow of materials for the container member and the covering member when the friction stir welding operation is performed. The backing member is disposed adjacent to the bonding portion, at a side of the abutting portion that is opposite to an inserting side of the friction stir welding tool.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 11, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akihiko Sano, Yoshitaka Miura