Using Dynamic Frictional Energy (i.e., Friction Welding) Patents (Class 228/112.1)
  • Patent number: 8950650
    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: Grant
    Filed: March 16, 2012
    Date of Patent: February 10, 2015
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Hideki Okada, Hajime Kashiki, Kazumi Fukuhara, Mitsuo Fujimoto
  • Patent number: 8950651
    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: Grant
    Filed: October 23, 2013
    Date of Patent: February 10, 2015
    Assignee: IHI Corporation
    Inventors: Naoki Oiwa, Rie Sakamoto, Yasuhiro Otake, Mitsuyoshi Tsunori, Kenji Nakamura, Hiroaki Kawashima
  • Publication number: 20150028082
    Abstract: In some implementations of ignition-free welding in at least one fastener is attached to a container that resides within a hazardous environment. The fasteners are then used to secure a fill zone to the container. The chamber then receives a sealing material for the purpose of sealing a leak without having to remove the hazardous material.
    Type: Application
    Filed: July 27, 2013
    Publication date: January 29, 2015
    Applicant: Forge Tech, Inc.
    Inventors: Michael Lee Miller, Daniel J. Rybicki, Mathew A. Rybicki, Lawrence J. Povse, Kenneth R. Vejr, Andre S. Todd, John M. Griffin
  • Publication number: 20150028083
    Abstract: In some a friction welding apparatus includes a vacuum chamber which prevents combustion in a vicinity of a tank, the vacuum chamber formed from a flexible seal between the tank and a housing and a magnetic apparatus that encompasses a perimeter of a damaged area of the tank and a friction welding motor operably coupled to the vacuum chamber.
    Type: Application
    Filed: July 28, 2013
    Publication date: January 29, 2015
    Applicant: Forge Tech, Inc.
    Inventors: Michael Lee Miller, Daniel J. Rybicki, Mathew A. Rybicki, Lawrence J. Povse, Kenneth R. Vejr, Andre S. Todd, John M. Griffin
  • Publication number: 20150022950
    Abstract: The invention relates to a cover for covering a tubular element of a first electrical energy storage assembly (20), said cover comprising a covering wall (50). The cover is characterised in that it comprises a radially extending electroconductive tongue (60, 70) comprising a contact face (71) intended to come into contact with a second adjacent storage assembly in order to electrically connect the two storage assemblies.
    Type: Application
    Filed: August 29, 2012
    Publication date: January 22, 2015
    Inventor: Erwan Vigneras
  • Publication number: 20150022949
    Abstract: The invention relates to a module comprising at least two electrical energy storage assemblies (20), each storage assembly comprising: a tubular element (21) comprising a so-called side face (23), and at least one cover (50) for covering one of the ends of the tubular element. Said module is characterised in that it also comprises a connecting body (60) for electrically connecting the two assemblies, the connecting body comprising at least one portion, each portion being separate from at least one of the storage assemblies (20), and the connecting body extends between the two storage assemblies such that the height of each storage assembly connected to the connecting body is equal to the height of a storage assembly that does not have a connecting body.
    Type: Application
    Filed: August 29, 2012
    Publication date: January 22, 2015
    Inventor: Erwan Vigneras
  • Patent number: 8936187
    Abstract: A connecting method of a single core electric wire to a stranded electric wire which can prevent a contact resistance from increasing is provided. The connecting method includes a tube inserting process that a single core wire and a twisted wire are respectively inserted from openings and of a tubular joint terminal having a single core wire inserting part from an end part to a prescribed position in an interior side and a twisted wire inserting part from the other end part to the single core wire inserting part in the interior side, and a metallic bond process that an end face contacts under pressure with an end face and the single core electric wire is rotated in a twisting direction of the twisted wire to metallically bond the end faces.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: January 20, 2015
    Assignee: Yazaki Corporation
    Inventor: Fumie Hino
  • Patent number: 8936186
    Abstract: There is provided a tool for friction stir welding having excellent wear resistance and chipping resistance. The tool for friction stir welding according to the present invention includes a base material, the base material includes a first hard phase, a second hard phase and a binder phase, the first hard phase is formed by WC particles, the second hard phase is formed by a compound of one or more metals selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W and one or more elements selected from the group consisting of nitrogen, carbon, boron, and oxygen, or a solid solution of the compound (except for WC), the binder phase is formed by an iron group metal, and the second hard phase is higher than or identical to the first hard phase in terms of volume ratio.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: January 20, 2015
    Assignees: Sumitomo Electric Industries, Ltd., Osaka University, Osaka Municipal Technical Research Institute
    Inventors: Hiroka Aoyama, Hideki Moriguchi, Yoshiharu Utsumi, Hidetoshi Fujii, Yoshiaki Morisada
  • Patent number: 8926176
    Abstract: A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 6, 2015
    Assignee: PGI International, Ltd.
    Inventors: Peter Mark Middleton, Larry A. Quick
  • Publication number: 20140374405
    Abstract: The invention relates to a method for joining two essentially metal sheet-type workpieces. In said method. the edge regions of the workpieces to be joined are placed at a distance from one another, at least one wire-shaped filler material is introduced into a zone between the edge regions before or during the joining process, and edge regions and the filler material are then heated to a predefined joining temperature by at least one first frictional element that moves in relation to the edge regions and the filler material, are subjected to a certain contact pressure, and are joined while being deformed.
    Type: Application
    Filed: November 9, 2012
    Publication date: December 25, 2014
    Inventor: Paul Schindele
  • Publication number: 20140369741
    Abstract: A joining process and a joined article are disclosed. The joining process includes positioning an article having a base material, and friction joining a pre-sintered preform to the base material. The pre-sintered preform forms a feature on the article. The joined article includes a feature joined to a base material by friction joining of a pre-sintered preform.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Yan CUI, Srikanth Chandrudu KOTTILINGAM, Brian Lee TOLLISON, Dechao LIN, David Edward SCHICK
  • Publication number: 20140367452
    Abstract: A method of friction stir welding is provided. The method includes providing a stir tool configured to rotate about and move along a stir tool axis and includes a pin with a pin axial end surface and a pin tapered surface that extends radially outwardly from the pin axial end surface. The method further includes providing the first member with a first member faying surface and defining a normal line that is normal to the first member top surface, is perpendicular to a longitudinal axis, and extends through a reference point. The method further includes providing the second member with a second member faying surface and forming a joint interface between the first and second members. The method further comprises contacting the rotating pin with the second member faying surface, the stir tool axis being disposed at a side tilt angle upon contact.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: Guru P. Dinda, Michael D. Gray, Richard E. Miller
  • Patent number: 8910851
    Abstract: A system and method for modifying a work piece surface of high melting temperature materials such as Advanced High Strength Steels, wherein a friction stir welding tool may include cutting elements located on the outside diameter of a collar assembly, wherein the collar assembly may be retrofitted for existing friction stir welding tools, or may be designed as a custom attachment for a new hybrid friction stir welding tool, wherein the surface of the work piece may be modified by removing detrimental flash and burr created during operation of the friction stir welding tool.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 16, 2014
    Assignee: MegaStir Technologies LLC
    Inventors: David Rosal, Paul T. Higgins, Russell J. Steel, Scott M. Packer, Jeremy Peterson, Steve W. Larsen, Samuel C. Sanderson, Jonathan A. Babb
  • Publication number: 20140361069
    Abstract: A friction stir processing tool having a shoulder, which is implemented on a body, and which has a friction surface for pressing against at least one workpiece at least partially provided with a surface coating, and a friction reducing unit for reducing the friction resistance between the surface coating and the friction surface.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 11, 2014
    Inventors: Juegren SILVANUS, Tommy BRUNZEL
  • Publication number: 20140360650
    Abstract: A friction stir processing tool for friction stir processing includes a shoulder for pressing against a workpiece surface and a pin, which protrudes beyond the shoulder and can be driven to rotate, for plasticizing introduction into at least one workpiece to be processed. The shoulder has an interruption opening on a circumferential region, so that the shoulder is not led around the entire circumference of the pin.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 11, 2014
    Inventors: Juergen SILVANUS, Tommy BRUNZEL
  • Patent number: 8899468
    Abstract: Disclosed is a friction stir welding tool (10) equipped with a probe (13) and a holder (16). At the tip of the probe (13) there is a pin part (11) and at the base there are probe-side protrusions (24) and probe-side recesses (25). At the tip of the holder (16) there are holder-side recesses (27) which mate with the probe-side protrusions (24), and holder-side protrusions (28) which mate with the probe-side recesses (25). External force applied to the probe (13) is transmitted from the probe-side protrusions (24) to the holder-side recesses (27) and from the probe-side recesses (25) to the holder-side protrusions (28).
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 2, 2014
    Assignees: Honda Motor Co., Ltd., Saga Tekkohsho Co., Ltd.
    Inventors: Tetsuya Miyahara, Mitsuru Sayama, Shosuke Ohhama, Daisuke Fukunaga, Hiroyuki Matsufuji
  • Patent number: 8893954
    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: January 24, 2014
    Date of Patent: November 25, 2014
    Assignee: Aeroprobe Corporation
    Inventors: Jeffrey Patrick Schultz, Kevin D. Creehan
  • Patent number: 8893951
    Abstract: An apparatus for friction stir welding includes a rotatably drivable pin having a drive end and a free end; a cylindrical engaging portion provided between the drive end and the free end and including a circumferential surface for engagement with one or more workpieces; and first and second shoulder elements arranged concentrically around the pin and positioned on respective sides of the of the engaging portion adjacent the drive end and the free end, respectively. The first and second shoulder elements include respective first and second bearing surfaces facing the engaging portion and extending perpendicularly to the axis of rotation. The mechanical and thermal loading of the pin and the thermal loading of the workpieces are reduced by merit of the second shoulder element being connected to the pin so as to be freely rotatable about the axis of rotation.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: November 25, 2014
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH
    Inventors: Jorge F. dos Santos, Jakob Hilgert
  • Patent number: 8881964
    Abstract: A method of welding including forming a filler material of a first oxide dispersoid metal, the first oxide dispersoid material having first strengthening particles that compensate for decreases in weld strength of friction stir welded oxide dispersoid metals; positioning the filler material between a first metal structure and a second metal structure each being comprised of at least a second oxide dispersoid metal; and friction welding the filler material, the first metal structure and the second metal structure to provide a weld.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: November 11, 2014
    Assignee: UT-Battelle, LLC
    Inventor: Weiju Ren
  • Publication number: 20140325842
    Abstract: The apparatus and method allows multiple components to be simultaneously bonded to a central shaft or tube using linear friction welding in a single welding process. The method involves simultaneously pressing the work pieces radially against the central shaft or tube at the desired locations while the shaft is vibrated axially. The weld is facilitated by the use of a linear friction welding machine, which includes a number of fixtures and press assemblies to hold and press the various work pieces against the central shaft or tube and a vibrating assembly for vibrating the central shaft or tube.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 6, 2014
    Inventor: Stephen A. Johnson
  • Publication number: 20140326781
    Abstract: A linear friction welding method and linear friction welding apparatus for joining two work pieces. The method involves vibrating a third weld component, or “coupon” between the two principle work pieces under a welding pressure. Friction between the coupon and work pieces causes the material at the weld surfaces to plasticize. Abruptly halting the vibration and pressing the work pieces against the coupon under a final load or forging pressure sets the weld interface.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 6, 2014
    Inventor: Stephen A. Johnson
  • Publication number: 20140326392
    Abstract: A welding tool for joining at least two workpieces at a joining region by friction stir welding includes a tool pin arranged along one axis of the welding tool, for applying frictional heat to the workpieces. The welding tool also includes a shoulder surrounding the tool pin, for separating the joining region from the surrounding area. The shoulder is moveable essentially parallel to the axis of the welding tool.
    Type: Application
    Filed: June 1, 2012
    Publication date: November 6, 2014
    Applicant: EADS Deutschland GmbH
    Inventors: Juergen Silvanus, Erich Forster, Eric Tauscher
  • Patent number: 8875976
    Abstract: The present invention relates to tools and methods for disposing, coating, repairing, or otherwise modifying the surface of a metal substrate using frictional heating and compressive/shear loading of a consumable metal against the substrate. Embodiments of the invention include friction-based fabrication tooling comprising a non-consumable member with a throat and a consumable member disposed in the throat, wherein consumable filler material is capable of being introduced to the throat in a continuous manner during deposition using frictional heating and compressive/shear loading of the filler material onto the substrate. Preferred embodiments according to the invention include such tools operably configured for applying a force or displacement to the filler material during deposition.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Aeroprobe Corporation
    Inventors: Jeffrey Patrick Schultz, Kevin Creehan
  • Patent number: 8875980
    Abstract: In a friction stir welding apparatus, workpiece fixing surface plates (3a, 3b) are installed on a framework (1). In addition, a welding apparatus main body (8) including a bobbin tool (5) having a probe (5a) protruding upward from a gap (4), a spindle (6) configured to attach the bobbin tool (5) to an upper end section thereof, and a spindle driving apparatus (7) configured to pivot the spindle (6) is movably installed at the framework (1) in a longitudinal direction of the gap (4) via linear guide mechanisms (9) installed at both sides of the welding apparatus main body (8). Further, a moving apparatus (10) is installed to move the welding apparatus main body (8) in the longitudinal direction of the gap (4). According to the friction stir welding apparatus, since the welding apparatus main body (8) is supported by the framework (1) via both of the linear guide mechanisms (9), a large welding reaction force can be sufficiently received.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 4, 2014
    Assignee: IHI Corporation
    Inventors: Hiroshi Saito, Naoki Oiwa, Rie Sakamoto, Tadafumi Kanayama, Satoshi Yamanaka
  • Publication number: 20140318685
    Abstract: An apparatus for use in a friction stir operation, such as friction stir welding (FSW) or friction stir processing (FSP). The apparatus may have a rotating tool adapted to be plunged into a material, where the material is susceptible to being softened by heating. The rotating tool may further be adapted to be advanced along a surface of the material. An optical energy generating subsystem may be used to heat a portion of the material using optical energy as the tool is advanced along the material.
    Type: Application
    Filed: October 16, 2012
    Publication date: October 30, 2014
    Inventors: Joseph C. Farmer, Alexander M. Rubenchik, Raymond J. Beach, Robert J. Deri, Edward I. Moses, Bassem S. El-Dasher, Sarath K. Menon, Terry McNelley
  • Publication number: 20140312099
    Abstract: A friction stir welding tool for welding of metallic plates and especially steel plates. The friction stir welding tool is made of cemented carbide comprising WC grains in a binder phase and wherein the welding tool is at least partly coated with a surface coating comprising Al2O3.
    Type: Application
    Filed: November 9, 2012
    Publication date: October 23, 2014
    Inventors: Stefan Ederyd, Henrik Nordenstrom
  • Patent number: 8857695
    Abstract: 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.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 14, 2014
    Assignees: Osaka Prefecture University Public Corporation, Kinki University, Isel Co., Ltd
    Inventors: Takayuki Takasugi, Yasuyuki Kaneno, Sachio Oki, Tomotake Hirata, Noboru Mochizuki
  • Patent number: 8857696
    Abstract: The tool for friction stir welding is a tool adapted to operatively engage a tube and a tubesheet to form a sealed joint. The tool has two components. The first component is a shoulder having orthogonal faces for simultaneously engaging the sheet and the tube, the shoulder defining a bore terminating in an aperture at the junction of the faces. The second component is a stir welding probe that is insertable into the bore and has an end exiting the aperture at the end of the bore. A forging pressure urges the shoulder against the junction of the tube and tubesheet. The probe is rotated about its axis, penetrating the tube and tubesheet and generating heat through friction to weld the tube to the tubesheet, while the shoulder is rotated about the tube so that the weld forms a seal about the circumference of the tube.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 14, 2014
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Nesar Merah, Fadi A. A. Al-Badour, Abdelrahman Nasr Shuaib, Abdelaziz Bazoune
  • Publication number: 20140299581
    Abstract: The invention relates to a method for welding rotors for power generation such as gas turbines, steam turbines, and generators having a plurality of rotor discs arranged along a rotor axis. The method includes providing said discs with a weld seam preparation. The weld seam preparation includes a root, a first, gap-like welding section adjoining the root in radial direction, and a second, gap-like welding section adjoining the first welding section in radial direction. The method further includes melting the root by means of a first welding process; making a weld in the first welding section by means of a second welding process; and filling up the second welding section by means of a third welding process.
    Type: Application
    Filed: March 31, 2014
    Publication date: October 9, 2014
    Inventors: Sorin KELLER, Werner Martin Balbach, Claus Paul Gerdes
  • Patent number: 8851357
    Abstract: An apparatus and method for removing weld flash from a structural assembly are provided. The apparatus generally includes a tool with a head that defines an edge and first and second opposite surfaces disposed at an angle converging toward the edge. A shaft, which extends from the first surface of the head, is configured to be engaged to a shaft holder of an actuation device so that the head extends from the actuation device and is configured to lift the flash from a surface of the assembly as the tool is moved in a path along a surface of the assembly with the edge contacting the flash.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: October 7, 2014
    Assignee: The Boeing Company
    Inventors: Christopher H. Swallow, Ryan L. Hanks
  • Patent number: 8852365
    Abstract: An aluminum alloy comprises aluminum, magnesium, scandium, and an enhancing system. The magnesium is from about 0.5 percent to about 10.0 percent by weight based on the aluminum alloy. The scandium is from about 0.05 percent to about 10.0 percent by weight based on the aluminum alloy. The enhancing system is from about 0.05 percent to about 1.5 percent by weight based on the aluminum alloy.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: October 7, 2014
    Assignee: The Boeing Company
    Inventors: Krishnan K. Sankaran, Kevin T. Slattery
  • Patent number: 8844796
    Abstract: Disclosed herein is a method of making a structure by ultrasonic welding and superplastic forming. The method comprises assembling a plurality of workpieces comprising a first workpiece including a first material having superplastic characteristics; ultrasonically welding the first workpiece to a second workpiece, to form an assembly; heating the assembly to a temperature at which the first material having superplastic characteristics is capable of superplastic deformation, and injecting a fluid between the first workpiece and the second workpiece to form a cavity between the first workpiece and the second workpiece.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: September 30, 2014
    Assignee: The Boeing Company
    Inventor: Kevin T. Slattery
  • Patent number: 8840006
    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: Grant
    Filed: September 18, 2013
    Date of Patent: September 23, 2014
    Assignees: Honda Motor Co., Ltd., F-Tech Inc.
    Inventors: Mitsuru Sayama, Keisuke Tsuta, Tsutomu Kobayashi, Shosuke Ohhama, Tetsuya Miyahara, Katsumi Komori, Kazuhiro Sekine, Naoki Osada
  • Patent number: 8833633
    Abstract: There is provided a tool for friction stir welding having excellent wear resistance and chipping resistance. The tool for friction stir welding according to the present invention is a tool for friction stir welding used in friction stir welding processing, wherein the tool for friction stir welding includes a base material, the base material includes a first hard phase and a binder phase, and has a thermal conductivity of 45 W/m·K or less, the first hard phase is formed by WC particles, and the binder phase is formed by an iron group metal and is included in the base material at a volume ratio of 8% by volume or more and 28% by volume or less.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 16, 2014
    Assignees: Sumitomo Electric Industries, Ltd., Osaka University, Osaka Municipal Technical Research Institute
    Inventors: Hiroka Miyazaki, Hideki Moriguchi, Yoshiharu Utsumi, Hidetoshi Fujii, Yoshiaki Morisada
  • Publication number: 20140248510
    Abstract: Friction stir welding is performed in the following manner. In the state in which a probe is rotated in a predetermined rotation direction, the probe is inserted into a flange of a rear sub frame, thereby starting friction stir welding to weld the flange of the rear sub frame and a flange of a front sub frame positioned on the inner side of the rear side of a vehicle. The probe is sequentially moved along the direction of arrow R1?arrow R2 (predetermined direction). When the probe reaches the end point of the direction indicated by arrow R2, the probe is inserted into the flange on the outer side across a protruding portion disposed between the flanges. Then, the probe is sequentially moved in the direction of arrow R4?arrow R5?arrow R6, which is opposite to the direction of arrow R1?arrow R2.
    Type: Application
    Filed: September 3, 2013
    Publication date: September 4, 2014
    Applicant: HONDA MOTOR CO., LTD
    Inventors: Mitsuru Sayama, Tetsuya Miyahara, Shosuke Ohhama, Tsutomu Kobayashi
  • Patent number: 8820610
    Abstract: The present invention provides a qualitatively-stable functionally gradient material precursor having gradient material composition, as well as a production method of the functionally gradient material precursor, at low cost. Further, the present invention provides a functionally gradient material having gradient material composition, or having both gradient material composition and gradient porosity, so as to achieve high-functionality; as well as a production method of the functionally gradient material. A functionally gradient material precursor is formed by the steps of: forming plural kinds of metal foam precursors, each obtained by performing heat treatment on a metal member so that a plurality of pores are generated within the metal member, by making the material composition of the metal member different; and friction stir welding the plural kinds of metal foam precursors. Further, a functionally gradient material is formed by performing heat treatment on the functionally gradient material.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 2, 2014
    Assignees: National University Corporation Gunma University, Shibaura Institute of Technology
    Inventors: Yoshihiko Hangai, Takao Utsunomiya
  • Patent number: 8814027
    Abstract: The present invention provides an economic rotation tool for joining a pair of metal members which form an inner corner by abutting the pair of metal members (1) each other, and a joining inner corner method using the same. The rotation tool for joining the pair of metal members which form an inner corner (1) by abutting the pair of metal members each other to perform friction stir welding on an inner corner portion formed by abutting a pair of metal members against each other comprising: a stirring pin (3) to be inserted into the inner corner portion; and a base block (2) supporting the stirring pin (3) and to be brought into contact with one and the other of the pair of metal members respectively, wherein the base block (2) includes: a body portion (4) having a taper shape; and a shoulder portion (5) formed detachably at a tip of the body portion, and the body portion (4) and the shoulder portion (5) are penetrated by the stirring pin (3).
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: August 26, 2014
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 8814026
    Abstract: A friction stir welding includes a main body for holding a tool and a hot air and cool air separating unit. The separating unit is disposed at the main body and separates a supplied gas into hot air hotter than the gas and cool air cooler than the gas in a tube portion and ejects the cool air from a first end of the tube portion and ejects hot air from a second end of the tube portion. The hot air is supplied to a front side of a movement direction of the tool in the surface of the work piece from a tool side of the friction stir welding apparatus and the cool air is supplied to a rear side of the movement direction of the tool in the surface of the work piece from the tool side of the friction stir welding apparatus.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 26, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Yoshinori Kato
  • Patent number: 8800844
    Abstract: A hole in a metal workpiece is filled by friction plug welding. The weld between the workpiece and the plug is reinforced by a weld land in the workpiece that surrounds one end of the plug. The weld land is formed by extruding a portion of the plug into a cavity in an anvil used in the welding process.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: August 12, 2014
    Assignee: The Boeing Company
    Inventors: David M. Bezaire, John M. Comfort, John G. Vollmer, Mark A. Fischer
  • Patent number: 8800847
    Abstract: A method for controlling friction stir welding is provided. The method may include initiating friction stir welding and determining the position of a friction stir welding tool and at least one part being welded. The method may also include adjusting the position of the friction stir welding tool while friction stir welding based at least in part on the positions of the tool and at least one of the parts. The position of the parts may be determined downstream of the friction stir welding tool in order to prospectively account for the position of the parts. Accordingly, the position of the friction stir welding tool may be dynamically adjusted during friction stir welding to account for part movement. Related systems and computer code are provided.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 12, 2014
    Assignee: Apple Inc.
    Inventors: Alfredo Castillo, Umakaran Nemallan
  • Publication number: 20140217154
    Abstract: Friction Stir Welding (FSW) devices and methods for simultaneously welding both sides of an arcuate joint are described. The FSW method includes the step of operating a FSW tool and an anvil on the exterior surface of the joint and simultaneously operating another FSW tool and anvil on the interior surface of the joint. The anvils are positioned in a juxtaposing manner to the FSW tools, and move in tandem with the FSW tools, thus providing a supporting force to the FSW tools during their operation.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Inventors: Christopher J. Obaditch, Karly Moore, Gary Cannell, Glenn Grant
  • Publication number: 20140220372
    Abstract: A unitized assembly may comprise a fiber metal laminate and at least one additive layer. The fiber metal laminate may have non-metallic plies bonded to metallic plies and may include an innermost metallic ply. The at least one additive layer may be deposited onto the innermost metallic ply by friction stir welding.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicant: The Boeing Company
    Inventors: David P. Heck, Loren J. Strahm
  • Publication number: 20140212681
    Abstract: A joining process and a joined article are disclosed. The joining process includes positioning an article having a base material, and friction welding a pre-sintered preform to the base material. The pre-sintered preform forms a feature on the article. The joined article includes a feature joined to a base material by friction welding of a pre-sintered preform.
    Type: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yan CUI, Srikanth Chandrudu KOTTILINGAM, Brian Lee TOLLISON, Dechao LIN, David Edward SCHICK
  • Patent number: 8789273
    Abstract: A method for producing a piston of an internal combustion engine, designed as a one-piece cooling channel piston. The piston includes an upper part and a lower part supported by corresponding circumferential joining bosses together forming a joining zone. In order to produce a bonded joint of the upper part and the lower part, the joining bosses are connected by means of multiorbital friction welding in the region of a rotationally symmetrical or rotationally asymmetrical joining zone.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: July 29, 2014
    Assignee: KS Kolbenschmidt GmbH
    Inventors: Michael Albert Janssen, Gerhard Luz, Volker Gniesmer, Steffen Stork, Martin Weissert
  • Publication number: 20140202404
    Abstract: A monobloc piston assembly for an internal combustion engine is provided. The piston assembly includes a piston body which extends along an axis and is formed of at least two pieces of material which are joined together at least one friction weld joint which extends continuously through an annular shape around the axis. One of the pieces has an upper surface with a combustion bowl having a rotationally asymmetrical shape around the axis formed therein. Another of the pieces has a dome-shaped receiving surface which is rotationally symmetrical around the axis for slidingly receiving a portion of a connecting rod.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: Federal-Mogul Corporation
    Inventors: Michael Weinenger, Florin Muscas
  • Publication number: 20140203067
    Abstract: A welding tool for connecting at least two workpieces at a connection region by friction stir welding includes a shoulder that separates the connection region from the surroundings. The shoulder is designed as a molding tool to mold during the friction stir welding.
    Type: Application
    Filed: June 1, 2012
    Publication date: July 24, 2014
    Applicant: EADS Deutschland GmbH
    Inventors: Juergen Silvanus, Erich Forster, Eric Tauscher
  • Patent number: 8783366
    Abstract: A method for routing an electrical conductor through a sub-surface channel in substantially any suitable metallic article of manufacture includes friction stir welding a cap in a groove formed in a surface of the article so as to form the sub-surface channel. An electrical conductor is then routed through the channel. The channel may further include a substantially tubular conduit formed therein with the electrical conductor being routed through the conduit. The friction stir weld zone formed during friction stir welding is generally harder and more wear resistant that the article body.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: July 22, 2014
    Assignee: Smith International, Inc.
    Inventor: Richard Davis
  • Patent number: 8777089
    Abstract: A method is disclosed for controlling a process in which a component 4 is moved relative to another component 6 such that at least one of the components 4, 6 experiences a reduction in magnitude in at least one dimension. Such processes may include for example friction welding. The method comprises monitoring energy input to the process and adjusting an input parameter for the process based on the monitored energy input. The monitoring of energy input is performed before any reduction in component magnitude has begun to take place.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: July 15, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Stephen M. Beech, Michael D. Rowlson, Simon E. Bray, Gavin J. Baxter, Amar M. Varia
  • Patent number: 8770464
    Abstract: A method for manufacturing welded lap joints comprising the following steps: Providing of two components each having at least one base; allocating the components in such a way that the bases face each other and the components overlap in an overlapping area, which extends at least partially over both components; joining the components by welding in the overlapping area such that a weld joint is formed, wherein at the edge of the overlapping area non welded areas are formed; removing of the non welded areas whereby outer cutting areas are formed at the components, which are arranged at obtuse angles to the overlapping area.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: July 8, 2014
    Assignee: Airbus Operations GmbH
    Inventors: Marco Pacchione, Juergen Silvanus
  • Patent number: 8763881
    Abstract: A method for applying a wear reducing material to a tool used in a wellbore operation that includes welding a hardfacing alloy to a surface of the tool, wherein the welding comprises friction stirring the alloy into the tool's surface is disclosed. Methods of welding a preformed sleeve or width of wear reducing material using friction stirring are also disclosed.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 1, 2014
    Assignee: Smith International, Inc.
    Inventors: Madapusi K. Keshavan, Russell J Steel, Cary A. Roth, Shelton W. Alsup