Using Dynamic Frictional Energy (i.e., Friction Welding) Patents (Class 228/112.1)
  • Patent number: 8763882
    Abstract: A friction stir welding method for a metal material for longitudinally welding members to be butted and then welded with complicated shape portions in section at end portions. The friction stir welding method includes preparing members to be welded and formed with excess thickness portions and a welding tool provided with a probe; performing a first welding to the members to be welded; inserting the welding tool from the excess thickness portion to cause plastic flow of the metal material subsequent to the butt-welding; and performing a second welding.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 1, 2014
    Assignee: Suzuki Motor Corporation
    Inventor: Ryo Yamauchi
  • Patent number: 8757468
    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: January 30, 2013
    Date of Patent: June 24, 2014
    Assignee: The Boeing Company
    Inventors: Kurt A. Burton, Mike P. Matlack
  • Patent number: 8756785
    Abstract: A method of manufacturing a shaft of a surgical instrument including forming a proximal segment of the shaft to include one or more features for operably engaging the shaft to a first component of the surgical instrument, forming a distal segment of the shaft to include one or more features for operably engaging the shaft to a second component of the surgical instrument and forming an intermediate segment of the shaft. The proximal segment is welded to a proximal end of the intermediate segment; and the distal segment is welded to a distal end of the intermediate segment. The proximal and distal segments are welded to the intermediate segment such that the one or more features thereof are aligned in a pre-determined orientation relative to one another.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: June 24, 2014
    Assignee: Covidien LP
    Inventors: James D. Allen, IV, Kim V. Brandt, Monte S. Fry, Keir Hart, Daniel A. Joseph, Peter M. Mueller, Jeffrey R. Unger
  • Patent number: 8757470
    Abstract: A friction stir welding method in which a welding tool rotating around an axis is pressed against a welding target portion of workpieces supported by a backing member so that frictional heat is generated and the friction heat softens the welding target portion. The welding tool is at least partially inserted into the softened welding target portion and stirs the softened welding target portion so that the welding target portion is stir welded in a solid phase state. The friction stir welding method includes detecting a temperature of a temperature measurement point provided in the backing member, and calculating an estimated temperature of the welding tool from the detected temperature of the temperature measurement point, based on a predefined correlation between a temperature of the welding tool and a temperature of the backing member.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: June 24, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Ryoji Ohashi, Mitsuo Fujimoto
  • Publication number: 20140166731
    Abstract: The invention aims at providing a friction stir welding method which can achieve joining a butting portion to a deep location therein by reducing the load on the friction stirring device. The friction stir welding method for joining two metal members (1) using a primary joining rotary tool (F) with a stirring pin (F2) includes a primary joining process in which a rotating stirring pin (F2) is moved to the butting portion formed by butting the metal members (1) against each other and friction stir welding is carried out. In the primary joining process, only the stirring pin (F2) is brought into contact with the metal members (1).
    Type: Application
    Filed: July 26, 2012
    Publication date: June 19, 2014
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro Seo, Hisashi Hori
  • Publication number: 20140166671
    Abstract: At least one inner vessel is provided within a container for storing and/or dispensing gas under pressure to assist in filling the container with gas. The container comprises an outer vessel defining an interior space and a fluid flow control unit for controlling fluid flow into and out of the container. The inner vessel(s) defines a part of the interior space of container and is intended to hold cryogenic fluid in spaced relationship with respect to the outer vessel. Since the inner vessel is in fluid flow communication with the remaining part of the interior space, when the cryogenic fluid becomes gaseous, the container fills with gas. The inner vessel(s) has a mouth for receiving cryogenic fluid from the fluid flow control unit which is free of the fluid flow control unit.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 19, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Neil Alexander Downie, Christopher John Mercer
  • Publication number: 20140158750
    Abstract: The invention relates to a vibration dampening device (1) for the manufacture by rotational friction welding of a turbomachine rotor, said rotor comprising at least one first disc (2a) and a second disc (2b) each comprising a hub (3a, 3b) having an internal surface (4a, 4b), with the device (1) comprising at least one first clamping device (10a) configured to be positioned coaxially to the hub (3a) of the first disc (2a), comprising a pair of radially opposite jaws (11a) suited to come into contact with the internal surface (4a) of said hub (3a) of the first disc (2a).
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: SNECMA
    Inventor: Jean-Luc BOUR
  • Publication number: 20140151438
    Abstract: A system and method for repairing and/or joining together multiple lengths of tubulars using friction stir joining, and a system for manipulating the tubular so that friction stir joining may be performed while the tubular is on a reel and/or at a field site.
    Type: Application
    Filed: May 14, 2013
    Publication date: June 5, 2014
    Inventors: Rodney Dale Fleck, Bonnie Powell, Paul T. Higgins, Rod W. Shampine, Russell J. Steel, Scott M. Packer, Edward K. Leugemors, Timothy M. Lesko
  • Patent number: 8740042
    Abstract: The invention provides a friction-welded part featuring easy design as well as a method of producing said part. The friction-welded part 1 is produced by friction-welding a first member 10 and a second member 20 together. The first member 10 is made of an aluminum alloy material, having a uniform cross-section portion 11 whose cross-sectional shape and size are not changed. The second member 20 is made of an aluminum alloy material, having a uniform cross-section portion 21 whose cross-sectional shape and size are not changed. According to the invention, the uniform cross-section portions 11 and 21 are friction-welded together to form the part 1. A heat affected zone “H” caused by friction welding is formed only in the uniform cross-section portions 11 and 21. The uniform cross-section portion 11 of the first member 10, and the uniform cross-section portion 21 of the second member 20, respectively, have a cylindrical shape, preferably having the same sectional dimension.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: June 3, 2014
    Assignees: Nippon Light Metal Company, Ltd., Nikkeikin Aluminium Core Technology Company Ltd.
    Inventors: Shinichiro Sumi, Kou Mizuguchi, Hiroyuki Mochizuki, Kazuhiro Nakakura
  • Publication number: 20140144024
    Abstract: A method of welding two sheet-like work pieces, such as a web and a belt of a vehicle suspension control arm, is provided. The method includes the step of positioning one of the sheet-like work pieces against and at an angle relative to the other work piece such that the first and second work pieces are in contact with one another by a generally flat contact surface. The method continues with the step of melting with a single welding process material of the first and second work pieces across the entire width of the contact surface.
    Type: Application
    Filed: July 19, 2012
    Publication date: May 29, 2014
    Inventor: James R. Byrne, II
  • Publication number: 20140144972
    Abstract: Provided are a friction processing tool in which a service life of the tool is improved and which can reduce a labor hour for manufacturing and a manufacturing cost, and a friction processing apparatus and a friction processing method using the same. In a friction working tool 20 for softening and processing workpieces W1 and W2 of a metal material by frictional heat generated by being pressed against the workpieces while being rotated, a cylindrical tool body 21 is provided, and a distal end surface of the tool body brought into contact with the workpieces W1 and W2 is formed only by a flat shoulder surface 22. The material of the friction processing tool 20 is made of Ni-based dual multi-phase intermetallic compound alloys.
    Type: Application
    Filed: February 17, 2011
    Publication date: May 29, 2014
    Applicants: OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATION, ISEL CO., LTD., KINKI UNIVERSITY
    Inventors: Takayuki Takasugi, Yasuyuki Kaneno, Sachio Oki, Keishi Kubo, Noboru Mochizuki, Tomotake Hirata
  • Publication number: 20140131426
    Abstract: A welding tool for friction welding a workpiece, the tool including: a probe having a core including a ceramic material, the probe having a surface coating including a metallic material covering at least part of a contact zone of the probe.
    Type: Application
    Filed: October 4, 2013
    Publication date: May 15, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventors: Andrew Robert WALPOLE, Daniel CLARK
  • Publication number: 20140134449
    Abstract: In a process for friction stir welding together pieces of dissimilar material, a first piece of a second metal is overlaid onto a first piece of a first metal that is dissimilar from the second metal such that at least a portion of the first piece of second metal overlaps a portion of the first piece of first metal. The first piece of second metal has a plurality of holes therein and the holes are disposed in overlapping relationship with the portion of the first piece of first metal. Each of the holes is filled with a plug formed from the first metal. The first piece of first metal is friction stir welded to the first piece of second metal at each of the plug locations.
    Type: Application
    Filed: April 10, 2013
    Publication date: May 15, 2014
    Inventor: Wisconsin Alumni Research Foundation
  • Patent number: 8720607
    Abstract: A method for hardening a portion of the outer surface of a downhole tool body includes friction stirring the vulnerable surface of the tool. Such friction stirring generally includes rotating a friction stir weld tool in contact with the surface until a portion of the tool penetrates the tool. The friction stir weld tool is then translated (while rotating) across a predetermined region of the surface thereby creating a friction stir zone. The friction stir zone is generally considerably harder, and therefore more wear resistant, than the parent material that makes up the tool body. The resulting downhole tool includes at least one surface with a hard friction stir zone.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 13, 2014
    Assignee: Smith International, Inc.
    Inventors: Richard Davis, Brian W. Cruickshank
  • Patent number: 8714431
    Abstract: A friction welding tool having a pin and a clamping device with a counter bearing, a holddown element and a spring element. The pin has a coupling section for releasable, rotationally fixed coupling to a rotating output device of a machine tool. The counter bearing is held on the pin between the pin's coupling and engagement ends in a manner that allows the counter bearing to be axially immovable on but freely rotatable about a longitudinal axis of the pin. The holddown element surrounds the pin and is arranged on a side of the counter bearing facing the engagement end. The holddown element has a bearing surface for bearing on the workpiece arrangement. The spring element is provided between the holddown element and the counter bearing and is mounted on the pin in such a way that it is elastically slidable along the longitudinal axis of the pin.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 6, 2014
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum für Material—und Küstenforschung GmbH
    Inventors: Arne Roos, Jan Fritz, Luciano Bergmann, Jorge F. dos Santos
  • Publication number: 20140119814
    Abstract: The present application relates to a friction stir welding tool (20) for joining two adjacent work pieces (10), which work pieces comprise portions (6) to be welded and having a narrow space there between on one side, said tool having an axis of rotation, and comprising a first shoulder (1), a second shoulder (2), and a pin (3) arranged so as to connect the first and second shoulders, wherein said first shoulder has a first contact surface for friction heat generation to the work pieces to be joined during welding, said first contact surface having a first contact area, and said second shoulder has a second contact surface for friction heat generation to an opposite surface (5) of the same portions of the work pieces to be joined, said second contact surface having a second contact area, the first and second areas having different sizes, where the first area is a larger sized area than the second area.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 1, 2014
    Applicant: SAPA AB
    Inventor: Wojciech Osikowicz
  • Patent number: 8701964
    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: Grant
    Filed: December 13, 2010
    Date of Patent: April 22, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hideki Moriguchi, Yoshiharu Utsumi, Hiroka Miyazaki
  • Patent number: 8701969
    Abstract: The present invention relates to a technique for producing a jointed member by subjecting two to-be-jointed members which are contacted each other to friction stir welding. The method for producing a jointed member executes a dwelling step in which a probe is rotated only for a predetermined period at at least one of a probe starting point position which is a position of the probe for forming a joint starting point in the to-be-jointed member and a probe end point position which is a position of the probe for forming a joint end point in the to-be-jointed member.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yoshinori Kato, Kazushige Yamasu
  • Patent number: 8701968
    Abstract: The present invention provides a friction stir welder that includes a stage on which at least two material pieces to be welded are mounted and stacked, a pressing member that covers and presses end faces of the material pieces to be welded that are mounted and stacked on the stage, and a rotary tool that is inserted into the stacked material pieces to be welded while rotating, so that a plastic flow is generated at an interfacing portion as well as in the vicinity thereof between the rotary tool and the material pieces to be welded, thereby to joint the material pieces to be welded to each other.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 22, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Mitsuru Sayama, Tetsuya Miyahara, Fumiaki Fukuchi
  • Patent number: 8702919
    Abstract: Sputtering targets are described that comprise: a) a target surface component comprising a target material; b) a core backing component having a coupling surface, a back surface and at least one open area, wherein the coupling surface is coupled to at least part of the target surface component; and wherein at least part of the target surface component fits into at least one open area of the core backing component. In some embodiments, the target surface component, the core backing component or a combination thereof have at least one surface area feature coupled to or located in the back surface of the core backing component, the target surface component or a combination thereof, wherein the surface area feature increases the cooling effectiveness of the target surface component.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: April 22, 2014
    Assignee: Honeywell International Inc.
    Inventors: Stephane Ferrasse, Werner H. Hort, Jaeyeon Kim, Frank C. Alford
  • Patent number: 8695868
    Abstract: Devices and methods of welding dissimilar materials are contemplated in which an adaptor is used in an intermediate position between the dissimilar materials. Most preferred adaptors are manufactured by friction stir welding from two dissimilar materials that are identical or similar to the dissimilar materials to be welded together. Therefore, coupling of dissimilar materials in the field via the adaptors is greatly simplified as conventional welding methods can now be employed.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: April 15, 2014
    Assignee: Fluor Technologies Corporation
    Inventors: Barry Messer, Shawn Seitz
  • Publication number: 20140096735
    Abstract: An improved piston for an opposed piston internal combustion engine is provided. The piston includes a piston body that extends along an axis from a crown portion to a skirt portion with a full piston skirt and to a pin boss portion. The piston body includes a plurality of ring grooves in the crown portion and at least one ring groove in the skirt portion. A wrist pin which has a length that is longer than a maximum diameter of the piston body is joined with the piston body at the pin boss portion and extends past the pin boss portion for receiving a pair of connecting rods on opposite sides of the piston body. The piston body is a monobloc piston body which is made of one integral piece or of multiple pieces that are welded or adhered together.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 10, 2014
    Applicant: Federal-Mogul Corporation
    Inventors: Michael Weinenger, Florin Muscas
  • Publication number: 20140097230
    Abstract: A washing machine with a direct drive system including a tub, a drum rotatably mounted inside the tub, a shaft connected to the drum at a first end for transmission of a driving force of a direct drive motor, a coaxial support connected to a rear portion of the tub and having a first seat for a first bearing supporting a second end of the shaft opposite the drum, a stator secured to the coaxial support and having a plurality of magnetic cores, a rotor including permanent magnets and connected to the shaft, and a second bearing for supporting the shaft between the second end and the first end. The tub is made of polymeric material in which a second seat for said second bearing is co-molded.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: Whirlpool Corporation
    Inventors: GERD MAENTELE, ANTONIO F. CHIRIATTI, PAVOL PETRACEK, KURT WERNER
  • Publication number: 20140084044
    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: November 25, 2013
    Publication date: March 27, 2014
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hideki Moriguchi, Yoshiharu Utsumi, Hiroka Miyazaki
  • Patent number: 8678267
    Abstract: A unitized assembly comprises a fiber metal laminate having at least one additive layer deposited thereonto such as by friction stir welding. The fiber metal laminate comprises metallic and non-metallic plies and having an innermost metallic ply. The innermost metallic ply and the additive layer are each sized and configured to facilitate the generation of thermal energy sufficient to deposit the first additive layer to the innermost metallic ply during the friction stir welding process. The additive layer is sized and configured to minimize thermal loads in the innermost metallic ply during deposition thereof. The unitized assembly may be formed using a stock member such as a metallic plate from which the innermost metallic ply may be machined. The metallic and non-metallic plies may be laid up over the innermost metallic ply. The substructure elements may be machined from the metallic plate.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 25, 2014
    Assignee: The Boeing Company
    Inventors: David P. Heck, Loren J. Strahm
  • Patent number: 8678268
    Abstract: Devices and methods for friction stir welding using an anvil with a sacrificial material are disclosed. The method involves the steps of providing an anvil with a sacrificial material on the backside of the workpieces and operating a friction stir welding device to form a weld that joins the workpieces together with the sacrificial material. The anvil comprises a non-sacrificial base portion removably coupled with a sacrificial material.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: March 25, 2014
    Assignee: Fluor Technologies Corporation
    Inventors: Christopher J. Obadtich, Glenn Grant, Charles Freeman
  • Publication number: 20140076957
    Abstract: Disclosed is a friction-stir joining method for joining a first member, having a base metal covered with a substance different from the base metal, with a second member with the second member placed on the first member by moving a joining tool along a joining line having thereon a joining start point and a joining finish point. The method includes steps of inserting the joining tool into the second member at the joining start point; moving the joining tool a predetermined distance along the joining line in a direction opposite the joining finish point; causing the joining tool to turn back at a turning-back point spaced the predetermined distance from the joining start point; moving the joining tool along the joining line to the joining finish point past the joining start point; and pulling the joining tool out from the second member at the joining finish point.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Applicants: F-TECH INC., HONDA MOTOR CO., LTD.
    Inventors: Mitsuru SAYAMA, Keisuke TSUTA, Tsutomu KOBAYASHI, Shosuke OHHAMA, Tetsuya MIYAHARA, Katsumi KOMORI, Kazuhiro SEKINE, Naoki OSADA
  • Publication number: 20140077668
    Abstract: A method for friction stir welding is provided. The method may include compressing mating surfaces of first and second parts against one another in a fixture. One of the first part and the second part may include a first expendable portion and one of the first part and the second part may include a second expendable portion. A rotating pin may be inserted into the first expendable portion, directed along the joint, and removed from the second expendable portion. A conical pin with a threaded outer surface comprising one or more flat sections may be employed in the welding operations.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: Apple Inc.
    Inventors: David J. MORGENSTERN, Collin D. CHAN, Daniel M. SULLIVAN
  • Patent number: 8672212
    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 stifling pin (B2) of rotation tool (B) in plasticized region (W1) foamed in the first primary welding step.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: March 18, 2014
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Hayato Sato, Hisashi Hori
  • Publication number: 20140069985
    Abstract: A tool driving section of a friction stir spot welding device is configured to cause each of a pin member and a shoulder member to advance and retract, and is controlled by a tool driving control section. A press-fit reference point setting section sets a position where the pin member or the shoulder member contacts an object to be welded as a press-fit reference point, and the tool driving control section controls the position of the pin member with respect to the shoulder member on the basis of the press-fit reference point, thereby controlling the press-fit depth of a rotating tool press-fitted from the surface of the object to be welded. This achieves the excellent welding quality at suitable precision according to welding conditions especially in a double-acting friction stir spot welding method.
    Type: Application
    Filed: March 16, 2012
    Publication date: March 13, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki Okada, Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto
  • Publication number: 20140069984
    Abstract: System for friction stir welding of two parts which includes a welding unit which includes at least one welding head fitted with a rotating pin and a counter-bearing unit which has a support surface to support the parts against a pressure exerted by the welding head, and wherein each welding head can be moved relative to the support surface in a first direction parallel to an axis of rotation of the rotating pin and in a second direction orthogonal to the axis of rotation, and wherein the support surface can be moved in the second direction and is formed of two coaxial clamp rollers which are set apart from each other.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 13, 2014
    Inventors: Christophe MIALHE, Patrick LIEVEN, Romain DELAHAYE
  • Publication number: 20140069987
    Abstract: Process for linear transparency friction stir welding of a flange of a stiffener onto at least one panel for an aircraft, wherein a weld bead is made along the flange of the stiffener and wherein the weld bead extends in cross-section from a first lateral edge to an opposite second lateral edge of the stiffener flange. System for the implementation of the above welding process, which includes three welding heads arranged as a triangle, each of which includes a rotating pin as well as a shoulder extending at the base of said rotating pin.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 13, 2014
    Applicant: AIRBUS OPERATIONS (S.A.S.)
    Inventors: Christophe MIALHE, Patrick LIEVEN, Romain DELAHAYE
  • Publication number: 20140069986
    Abstract: A tool driving section of a friction stir spot welding device is configured to advance and retract each of a pin member and a shoulder member. A tool driving control section is configured to control the tool driving section such that an absolute value of a tool average position Tx defined by a following equation: Ap·Pp+As·Ps=Tx, where Ap is a cross-section area of a front end surface of the pin member, As is a cross-section area of a front end surface of the shoulder member, Pp is a press-fit depth of the pin member press-fitted from a front surface of an object to be welded, and Ps is a press-fit depth of the shoulder member press-fitted from the front surface of the object to be welded, is small.
    Type: Application
    Filed: March 16, 2012
    Publication date: March 13, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideki Okada, Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto
  • Publication number: 20140061185
    Abstract: The present invention refers to a method for joining at least two workpieces, the method comprising the following method steps: providing and positioning the workpieces to be joined; providing at least one joining element; heating the joining element to a temperature substantially equal to its plasticizing temperature with at least one heat source; heating the workpieces at least in the region of a joint to a predetermined reaction temperature; and applying material of the joining element to the region of the joint with a relative movement taking place between the joining element and the region of the joint.
    Type: Application
    Filed: December 9, 2011
    Publication date: March 6, 2014
    Inventor: Paul Schindele
  • Patent number: 8662372
    Abstract: A spindle head for performing friction stir welding includes concentric spindle shafts driven by stacked, coaxial motors contained within a spindle housing. The coaxial arrangement of the motors results in a more compact package. Each of the motors is concentrically arranged around one of the spindles by directly connecting a rotor of the motor to a spindle shaft. The stators of the motors are mounted on the housing and are concentrically arranged around the concentric spindle shafts.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 4, 2014
    Assignee: The Boeing Company
    Inventors: Kurt A. Burton, Mike P. Matlack, John Baumann, Herb Bommer
  • Patent number: 8657179
    Abstract: A control system for a thermal stir welding system is provided. The control system includes a sensor and a controller. The sensor is coupled to the welding system's containment plate assembly and generates signals indicative of temperature of a region adjacent and parallel to the welding system's stir rod. The controller is coupled to the sensor and generates at least one control signal using the sensor signals indicative of temperature. The controller is also coupled to the welding system such that at least one of rotational speed of the stir rod, heat supplied by the welding system's induction heater, and feed speed of the welding system's weld material feeder are controlled based on the control signal(s).
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 25, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Publication number: 20140048583
    Abstract: The invention utilizes vibration control, precision manufacturing tolerances for certain components of the system, and techniques for limiting thermal expansion of components, including passive insulation and active cooling techniques, in order to enable high speed tool rotation for Friction Stir Spot Joining of Advanced High Strength Steels.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Inventor: Masahiro Matsunaga
  • Publication number: 20140050519
    Abstract: A heating process makes a temperature of joining surfaces Wa and Ta of a pair of metal parts W and T at the start of a first joining process equal to 20% or greater, preferably, 40% or greater of a melting point of material of the metal parts W and T. The heating process makes a heating depth h of the pair of metal parts W and T at the start of the first joining process equal to 1.0 mm or greater.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: IHI Corporation
    Inventors: Naoki OIWA, Rie Sakamoto, Yasuhiro Otake, Mitsuyoshi Tsunori, Kenji Nakamura, Hiroaki Kawashima
  • Patent number: 8651361
    Abstract: A method of friction welding a workpiece and a component part is disclosed. The workpiece has a weld surface that is coextensive with at least a portion of a virtual surface, which is symmetric about an axis, and the component part includes a complementary surface that conforms to the weld surface. The method includes angularly oscillating the workpiece about the axis; urging the weld surface and the complementary surface together with a first predetermined force to create a plasticized region between the workpiece and the component part; urging the weld surface and the complementary surface together with a second predetermined force; discontinuing angularly oscillating the workpiece; urging the weld surface and the complementary surface together with a third predetermined force; and discontinuing to urge the weld surface and the complementary surface together when the workpiece and the component part coalesce.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: February 18, 2014
    Assignee: The Boeing Company
    Inventor: Zachary B. Daroff
  • Publication number: 20140045039
    Abstract: The invention relates to a method for connecting two energy storage assemblies (10) together, each energy storage assembly including a sealed metal housing, in which: a connector strip (30), which is sized so as to contact the end surface of each of the housings, is positioned on the end surfaces (24) of two housings arranged side by side; and the strip is friction-stir welded to each of the housings.
    Type: Application
    Filed: April 19, 2012
    Publication date: February 13, 2014
    Inventor: Erwan Vigneras
  • Publication number: 20140041223
    Abstract: Tenons can be installed at the ends of turbine blades by applying a solid state bonding procedure such as a friction welding technique to join the tenons to the turbine blades. The tenons can be employed to assemble the turbine blades to one or more covers for the turbine blades. The tenons can be installed in connection with the restoration of tenons for turbine buckets in steam turbines and in connection with the renovation of rotor assemblies that include turbine blades secured to a common disk, tenons located at one end of respective turbine blades and one or more covers secured to the turbine blades by means of the tenons. In instances in which tenon remnants are present at the ends of the turbine blades, tenon enlargement elements can be joined to the tenon remnants by the solid state bonding procedure. The tenon installations can be carried out in situ.
    Type: Application
    Filed: December 19, 2012
    Publication date: February 13, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Marek Wojciechowski, Marciej Jan Zarnik
  • Publication number: 20140034710
    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: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicants: BRIGHAM YOUNG UNIVERSITY, MEGASTIR TECHNOLOGIES LLC
    Inventors: Tracy W. Nelson, Carl D. Sorenson, Scott M. Packer, Paul Allen Felter
  • Publication number: 20140034709
    Abstract: A friction stir processing apparatus comprises a tool, a processing head retaining the tool, a support table retaining the workpiece, and a cylinder unit biasing the support table toward the tool. The tool having a probe projecting from a shoulder surface, for performing friction stir processing on a workpiece made of a metal material. The processing head is pressing the tool against the workpiece so as to relatively shift the tool in a processing direction. The friction stir processing apparatus comprises load control means for controlling to constantly keep the bias force of the cylinder unit so as to constantly keep pressurizing force of the tool pressing the workpiece. It is thus possible to perform friction stir processing with excellent quality even when the workpiece has a different thickness or is made of a different material.
    Type: Application
    Filed: March 27, 2012
    Publication date: February 6, 2014
    Applicant: ISEL CO., LTD.
    Inventors: Sachio Oki, Kiichi Kakei, Tomotake Hirata, Takayuki Takasugi, Yasuyuki Kaneno, Noboru Mochizuki, Takanori Uchida
  • Publication number: 20140027497
    Abstract: 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.
    Type: Application
    Filed: February 25, 2013
    Publication date: January 30, 2014
    Inventors: Raymond Rowland, Mark Wadzeck, Rodney Bong
  • Patent number: 8636194
    Abstract: A low-temperature friction-based coating method termed friction stir fabrication (FSF) is disclosed, in which material is deposited onto a substrate and subsequently stirred into the substrate using friction stir processing to homogenize and refine the microstructure. This solid-state process is capable of depositing coatings, including nanocrystalline aluminum and/or metal matrix composites and the like, onto substrates such as aluminum at relatively low temperatures. A method of making rod stock for use in the FSF process is also disclosed.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: January 28, 2014
    Assignee: Schultz-Creehan Holdings, Inc.
    Inventors: Jeffrey Patrick Schultz, Kevin Creehan
  • Publication number: 20140021244
    Abstract: A method of manufacturing coiled tubing comprises joining two portions of parent stock metal by friction stir welding. The adjoining portions of said two portions of parent stock metal are first reduced to a deformable plastic state, and then allowed to cool in such a manner that there is no re-crystallization of parent stock metal in a resulting weld.
    Type: Application
    Filed: June 10, 2013
    Publication date: January 23, 2014
    Inventor: Jon D. DuBois
  • Publication number: 20140023874
    Abstract: First and second aluminum alloy materials (2, 3), each comprised of a 5000-series aluminum alloy containing second phase particles having a diameter less than 5 ?m in a distribution density of less than or equal to 10,000 second phase particles/mm2, are welded together by abutting portions of the first and second aluminum alloy materials, and friction stir welding along the abutted portions (5) to form an integrally-welded aluminum alloy panel (1). The friction stir welding is performed using a tool (8) having a shoulder (10) under the following conditions: (i) the shoulder of the tool has a diameter (d) in the range of 3 mm?d?8 mm and (ii) the revolution number (r) of the tool is 6<r?20, wherein r is tool revolutions/length of the weld (4) in millimeters.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Applicant: SUMITOMO LIGHT METAL INDUSTRIES, LTD.
    Inventors: Toshihiko FUKUDA, Yoshikazu OZEKI
  • Patent number: 8631572
    Abstract: A method for the production of a piston for an internal combustion engine, in which a piston blank is forged, which is subsequently separated into two parts, to form an upper piston part and a lower piston part, after which the lower piston part and the upper piston part are machined and then welded to one another. Subsequently, the piston is finished. During forging of the piston blank, the top of the piston blank is partly given the shape of the underside of the upper piston part, and the underside of the piston blank is given the shape that corresponds to the interior of the lower piston part. After forging of the piston blank and before separation of the upper piston part from the lower piston part, the top of the piston blank is given the finished shape of the underside of the upper piston part by a cutting machining method.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: January 21, 2014
    Assignee: MAHLE International GmbH
    Inventors: Matthias Seifried, Kevin Speck
  • Publication number: 20140016994
    Abstract: A system includes a unit of a first part, and a proximal portion through an intermediate portion extended by a distal portion including a first extremity surface. A second part with a second portion includes a second surface to be friction welded with the extremity surface. A second portion is bordered laterally by a lateral surface and has a proximal portion, which extends through an intermediate portion extended by a distal portion. The distal portion of the second portion is carried in a malleable state during a friction welding. The intermediate portion of the second portion flares from the distal portion by the second towards and till the proximal portion of the second portion such that the bead of material from the deformation of the distal portion of the second portion during welding rubs against the lateral surface of the intermediate portion of the second portion during welding.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 16, 2014
    Applicant: SNECMA
    Inventor: Marc Jacky GANI
  • Patent number: 8627567
    Abstract: Provided is a method of producing a liquid-cooled jacket wherein deformation of a seal body can be minimized.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: January 14, 2014
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Nobushiro Seo, Shinya Makita, Hisashi Hori, Masanori Tamaishi