Means To Rotate One Surface Relative To The Other About A Fixed Axis Patents (Class 228/2.3)
  • Patent number: 10449628
    Abstract: A pressure welding method and to a pressure welding device (1) are provided. The pressure welding device (1) includes a plastification device (7), an upsetting device (8) and component mountings (34, 35, 36, 37) for the components (2, 3, 3?, 4) to be welded together and a machine frame (12). The pressure welding device (1) includes a machine head (13) which is arranged so as to move on the machine frame (12). The machine head (13) includes a rotatable spindle (54) and a component mounting element (34, 35) as well as an associated spindle drive (56). The machine head (13, 14) and the spindle drive (56) are separated from each other on the machine frame (12). A controllable mass decoupling (79) including an axially tolerant coupling (80), is arranged in the drive train (57) between the fixed or moveable spindle drive (56) arranged on the machine frame (12).
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 22, 2019
    Assignee: KUKA INDUSTRIES GMBH
    Inventors: Michael Büchler, Otmar Fischer, Harald Meyer, Klaus Schneider
  • Patent number: 10265809
    Abstract: A method of joining workpieces includes locating first ends of two first workpieces in a moveable part coupling portion. The lengths of the first workpieces are measured. Any difference in length between the first workpieces is determined. Two additional workpieces are located adjacent the first ends of the first workpieces based on the determined difference in length. The first workpieces are connected to the second workpieces.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: April 23, 2019
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Christopher M. Nijakowski, Anthony F. Kehres
  • Patent number: 10232465
    Abstract: A pressure welding device (1) and a pressure welding method are provided. The pressure welding device (1) includes a plastification unit (5), a positioning and compressing unit (6), a controller (26), and an advance unit (7) for a workpiece (3) and for the process axis (13). The advance unit (7) has an open- or closed-loop controllable hydraulic advance drive (12) that is formed as an open- or closed-loop controllable electro-hydraulic direct drive for the process axis (13).
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 19, 2019
    Assignee: KUKA INDUSTRIES GMBH
    Inventors: Michael Büchler, Otmar Fischer, Klaus Schneider, Thomas Hauck
  • Patent number: 9803678
    Abstract: An arc weld stud for fastening a member to a structure with an unthreaded nut includes a weld end having an ignition tip, and a threaded portion defined by a thread configured to form a corresponding counter-thread into a smooth bore of the unthreaded nut, wherein the arc weld stud comprises a material that is harder than the material of the unthreaded nut.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: October 31, 2017
    Assignee: Akko Fastener Inc.
    Inventor: Nestor Fernandez
  • Patent number: 9446490
    Abstract: To provide a method of friction welding and an apparatus of friction welding in which a length of time for manufacturing one product is reduced as much as possible regardless of the dimension errors of works. The fast forwarding distance Lx1 is calculated for the fast forwarding by using the results of measuring the dimensions of works W1, W2 under the condition of the constant slowly forwarding distance Lx2, Thereby, for the work of a legitimate dimension and even for the work having a dimension smaller than the legitimate dimension, the elongation of the slowly forwarding distance is prevented compared with the work having the longer dimension than the legitimate dimension, and the relative proportion of the fast forwarding distance Lx1 is increased by making shorter the specified slowly forwarding distance.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 20, 2016
    Assignee: NITTAN VALVE CO., LTD.
    Inventors: Ryo Onose, Takehiro Okuno
  • Patent number: 9199333
    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: Grant
    Filed: July 28, 2013
    Date of Patent: December 1, 2015
    Assignee: 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
  • Patent number: 9186748
    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: Grant
    Filed: July 27, 2013
    Date of Patent: November 17, 2015
    Assignee: 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
  • Patent number: 9120139
    Abstract: The present invention provides a method of forming a solid projection having excellent mechanical properties on a metal member without supplying thermal energy from the outside, and a projection-forming device and a metal part having a projection manufactured thereby. The means for solving the problems is characterized in that the means is comprised of the processes of pressing the distal end 13a of the processing jig 13 having the hole-opening and a cavity 13b at the distal end against the surface of the metal member workpiece 111 and rotating the metal member workpiece 111 and the processing jig 13 in the direction relatively counter to the other to generate friction heat causing thereby plastic flow into the cavity through the hole-opening 13b.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: September 1, 2015
    Assignee: Yamanoiseiki Co., Ltd.
    Inventors: Syuichi Yamanoi, Yoshinobu Motohashi, Eitaro Yukutake
  • Patent number: 8998067
    Abstract: Tubulars are joined to each other without rotation of the tubulars. A coupling is placed between the aligned tubulars and is supported for rotation or oscillating about its longitudinal axis. The tubulars are clamped in a manner that allows a compressive force to be transmitted to the coupling as the coupling is rotated. An induction device can preheat each connection site before friction welding and/or provide heat as the connection is made and is allowed to cool down. The process can continuously create a string of casing or liner that can be run in or drilled into a wellbore.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 7, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Joerg Lehr
  • Patent number: 8967216
    Abstract: A linear friction welding system includes a power shaft defining a power shaft axis and including a first eccentric portion and a first power transfer portion, a power transfer rod engaged with the first power transfer portion, an actuator assembly operably coupled with the power transfer rod and configured to move the power transfer rod axially along the power shaft axis, a crank including a second eccentric portion operably coupled with the first eccentric portion, and a second power transfer portion engaged with the power transfer rod, the linear friction welding system configured such that axial movement of the power transfer rod causes rotational movement of the crank with respect to the power shaft about the power shaft axis, a cam follower operably connected to an outer surface of the second eccentric portion, and a ram operably connected to the cam follower and configured to vibrate along a welding axis.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: March 3, 2015
    Assignee: APCI, LLC
    Inventor: Stephen A. Johnson
  • 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
  • Publication number: 20140124564
    Abstract: The present invention is directed to a tool for friction stir welding including a base material and a coating layer formed on the base material, wherein the coating layer is formed of two or more layers, and the coating layer as a whole has a thermal permeability of 8000 J/s0.5·m2·K or less, at least one layer of the coating layer includes a hexagonal crystal system and/or an amorphous structure, at least one layer of the coating layer includes a cubic crystal system, and the coating layer has compressive stress.
    Type: Application
    Filed: May 11, 2012
    Publication date: May 8, 2014
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hideki Moriguchi, Yoshiharu Utsumi
  • Publication number: 20140123470
    Abstract: A system and method of joining at least two workpieces together using a friction rivet and a friction rivet cap that are friction stirred together after a cutting tip or cutting feature on the friction rivet cuts through workpieces and is then bonded to the friction rivet cap, and wherein the friction rivet cap may be excluded if the friction rivet includes a hollow in the cutting tip, the hollow being flared after the friction rivets cuts through the workpieces to thereby create an integral rivet cap in the end of the friction rivet.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: MEGASTIR TECHNOLOGIES LLC
    Inventor: Michael P. Miles
  • 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
  • Patent number: 8631994
    Abstract: A friction-weld interface device for improving a structural strength of an assembly includes a first component having a concave tapered surface. The friction-weld interface also includes a second component having a convex tapered surface that is complementary to and is configured to receive the concave tapered surface of the first component. The assembly is formed by friction welding the concave tapered surface to the convex tapered surface. The friction-weld interface device may be used to assemble an air-intake manifold for an internal combustion engine, wherein the air-intake manifold is at least partially joined by the process of friction welding.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: January 21, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Shawn Michael Owen
  • Patent number: 8561875
    Abstract: The invention relates to a method for shaping pipes with the steps connecting a pipe end with a coupling of a connection device for pipes, in particular a quick connector, through friction welding and controlling the region of formation of the molten mass formed during friction welding. The contamination of the inside of the pipe due to welding beads can be prevented with the aid of the invention.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: October 22, 2013
    Assignee: Veritas AG
    Inventors: Dirk Hattass, Volker Naumann, Peter Kahn
  • Publication number: 20130221070
    Abstract: A burring apparatus for a friction welding machine comprises a clamp unit provided at the front end of a horizontal main spindle, for holding work piece W1 coaxial with the main spindle, a clamp unit provided at the front end of a slide movable to and away from the main spindle in the direction of the axis of the main spindle and a doughnut-shaped cutter for shearing off a burr. Work piece W2 is moved forward together with the slide until work piece W2 comes into contact with work piece W1 so that the mated ends of work pieces W1 and W2 are friction welded together to form a joint work piece W. The burr formed on the jointed work piece W is sheared off by the cutter. The jointed work piece W is then liberated from the main spindle.
    Type: Application
    Filed: November 25, 2010
    Publication date: August 29, 2013
    Applicant: NITTAN VALVE CO., LTD.
    Inventors: Takehiro Okuno, Ryo Onose, Koji Sakane, Koichi Homma
  • Publication number: 20130140348
    Abstract: Rotary friction welding apparatus comprising a clamp having a backstop for locating a part to be welded by rotary friction welding and a lateral clamp for applying lateral loads to the part to be welded; and a forge for applying forge pressure to the part to be welded when the part is located in the clamp, the clamp securing the part to be welded through a combination of forge pressure and lateral loads. The clamp has friction elements at the interface of either the lateral clamp and/or the backstop and the part to be welded.
    Type: Application
    Filed: November 5, 2012
    Publication date: June 6, 2013
    Applicant: ROLLS-ROYCE PLC
    Inventor: ROLLS-ROYCE PLC
  • 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: 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: 20120280021
    Abstract: A method for producing an integrally bladed rotor, in particular a gas turbine rotor, comprises the following steps:—Providing a blade (12) having a lower blade foot that has a joining surface (18);—Retaining the blade (12) in a retaining unit (20); and—Exciting the blade (12) to oscillate about an axis of rotation. A device for carrying out the method comprises a retaining unit, in which blade (12) can be solidly clamped in place, and an oscillating unit (24) that transmits translational oscillations to the retaining unit in a plane substantially parallel to joining surface (18), and a fixation unit (30) for establishing the axis of rotation.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 8, 2012
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Frank Stiehler, Hans Peter Borufka, Patrick Prokopczuk
  • Patent number: 8225984
    Abstract: A welding method is provided for forming a weld joint between first and second elements of a workpiece. The method includes heating the first and second elements to form an interface of material in a plasticized or melted state interface between the elements. The interface material is then allowed to cool to a plasticized state if previously in a melted state. The interface material, while in the plasticized state, is then mixed, for example, using a grinding/extruding process, to remove any dendritic-type weld microstructures introduced into the interface material during the heating process.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: July 24, 2012
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Patent number: 8127977
    Abstract: A welding apparatus is provided for forming a weld joint between first and second elements of a workpiece. The apparatus heats the first and second elements to form an interface of material in a plasticized or melted state interface between the elements. The interface material is then allowed to cool to a plasticized state if previously in a melted state. The interface material, while in the plasticized state, is then mixed, for example, using a grinding/extruding mixer, to remove any dendritic-type weld microstructures introduced into the interface material during heating.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 6, 2012
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Patent number: 8074865
    Abstract: Gradient polycrystalline cubic boron nitride (PCBN) materials are provided as well as tools incorporating such materials.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 13, 2011
    Assignee: Smith International, Inc.
    Inventor: Xian Yao
  • Patent number: 8002163
    Abstract: A friction welding apparatus includes a first holder for holding a first work piece, a second holder for holding a second work piece, a thrust mechanism and a shaft. The thrust mechanism moves the second holder toward or away from the first holder. The shaft is connected to the first holder and the second holder for receiving thrust caused by the thrust mechanism. The shaft has a tie rod and an externally threaded member which is coaxially connected to the tie rod so that the externally threaded member is rotatable on an axis thereof. The thrust mechanism has the externally threaded member, an internally threaded member and a thrust motor. The internally threaded member is provided in either one of the first holder and the second holder and engaged with the externally threaded member. The thrust motor rotates the externally threaded member relative to the internally threaded member.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: August 23, 2011
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Izumi Machine Mfg. Co., Ltd.
    Inventors: Koichi Kawaura, Hideaki Yamaguchi
  • Patent number: 7980449
    Abstract: A welding method and apparatus are provided for forming a weld joint between first and second elements of a workpiece. The method includes heating the first and second elements to form an interface of material in a plasticized or melted state interface between the elements. The interface material is then allowed to cool to a plasticized state if previously in a melted state. The interface material, while in the plasticized state, is then mixed, for example, using a grinding/extruding process, to remove any dendritic-type weld microstructures introduced into the interface material during the heating process.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: July 19, 2011
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: R. Jeffrey Ding
  • Patent number: 7975897
    Abstract: A friction welding machine (1) has two headstocks (5, 6), two spindles (8, 9) with a spindle drive (12, 13) and a workpiece holder (22). The first headstock (5) is arranged stationarily at the frame (2). The second headstock (6) is mounted axially movably at the frame (2) and is connected to a feed drive (25). The spindles (8, 9) have different sizes, the second spindle (9) and its spindle drive (13) being designed to be smaller and weaker.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: July 12, 2011
    Assignee: KUKA Systems GmbH
    Inventors: Wolfgang Semmlinger, Otmar Fischer, Günter Zott, Rudolf Huber
  • Patent number: 7975896
    Abstract: Friction plug welding methods and systems plug a hole extending through a component part from front and back faces thereof. A sacrificial plate having an opening therethrough may be positioned against the back face of the component part with assistance from a restraint part (which is also preferably provided with a space of sufficient dept to receive a terminal end of the male plug) so that the opening is coaxially aligned with the hole to be plugged. Upon advancing a male plug of a plug rod into the hole under friction plug welding conditions, a friction weld region will therefore be formed between the male plug and defining surfaces of both the hole extending through the component part and the opening extending through the sacrificial plate. The plug rod may include an annular shoulder flange which defines a plane parallel to the front face of the component part so that flash flow from the friction welding will be displaced laterally of the hole. The male plug may be frustroconically shaped.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 12, 2011
    Assignee: Embraer—Empresa Brasileira de Aeronautica S.A.
    Inventor: Marcio Fernandes Maciel
  • Patent number: 7971463
    Abstract: An apparatus for forming a workpiece to a desired, non-planar configuration are provided. At least one friction stir forming tool, having a shoulder and a pin, is used to urge the workpiece to the desired configuration and friction stir form the workpiece. The forming tool can urge the workpiece against a contour surface of a die or a shoulder that is opposite the structural member from the tool. Thus, the forming tool plasticizes a portion of the workpiece and urges the workpiece to the desired configuration. In addition, the material properties of the workpiece can be improved by the friction stir processing.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: July 5, 2011
    Assignee: The Boeing Company
    Inventors: Robert S. Forrest, Douglas J. Waldron
  • Patent number: 7950563
    Abstract: An apparatus for bearing a tool against a workpiece includes: (a) a pneumatically driven motor unit rotating a drive shaft substantially about a longitudinal drive axis; (b) a process shaft coupled with the drive shaft for rotating the tool substantially about a longitudinal process axis; (c) a flywheel coupled with one shaft of the drive shaft and the process shaft; and (d) at least one urging unit coupled with at least one of the motor unit and the process shaft. The urging unit moves the tool with respect to the workpiece. The flywheel and the one shaft impart inertial rotational energy to the tool after the pneumatic motor achieves a predetermined rotational speed.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: May 31, 2011
    Assignee: The Boeing Company
    Inventors: John R. Hull, John A. Mittleider
  • Publication number: 20110084116
    Abstract: A friction stir welding machine is provided that is adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 14, 2011
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Ryoji Ohashi, Mitsuo Fujimoto, Shinji Koga, Atsushi Kato
  • Patent number: 7922065
    Abstract: According to one aspect of the present disclosure, a part for an article of equipment includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The first region and the second region are either directly or indirectly joined by solid state welding to form a unitary fluid conducting part. According to another aspect of the present disclosure, a method for replacing at least one fluid conducting part of an article of equipment is disclosed wherein a replacement part is provided that includes a fluid conducting first region including a corrosion resistant first material, and a fluid conducting second region including a second material. The second material is substantially identical to the material of a region of the equipment on which the replacement part is mounted. The first and second regions are either directly or indirectly joined by solid state welding to form a unitary fluid conducting replacement part.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: April 12, 2011
    Assignee: ATI Properties, Inc.
    Inventors: Richard C. Sutherlin, Brett J. Herb, Ronald A. Graham
  • Publication number: 20110073634
    Abstract: A friction stir tool is provided to perform friction stir riveting using a partially consumable pin, wherein the pin includes a cutting edge on a bottom surface thereof, wherein the tool is rotated at a first speed to enable cutting by the pin into a first material that is overlapping a second material, wherein after the pin has cut to a sufficient depth, the rotational speed of the tool is increased to thereby enable plasticization of the consumable pin, the first material, and the second material, wherein the tool is then rapidly decelerated until stopped, enabling diffusion bonding between the pin, the first material and the second material.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Applicants: Brigham Young University, MegaStir Technologies, LLC
    Inventors: Scott M. Packer, Russell J. Steel, Jonathan A. Babb, Michael P. Miles, Kent Kohkonen
  • Patent number: 7909230
    Abstract: An attaching construction includes a first member having a circular tubular welding portion at a distal end and, at a rear end thereof, a holding portion which is integral with the welding portion. The attaching construction includes a second member having an annular first positioning rib, and an annular second positioning rib inside the first positioning rib. The welding portion is positioned within the first positioning rib, and the welding portion is friction welded in place within the first positioning rib while the first member is rotated.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: March 22, 2011
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Yoshiaki Aiso
  • Publication number: 20110062219
    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: Application
    Filed: September 11, 2009
    Publication date: March 17, 2011
    Inventors: David M. Bezaire, John M. Comfort, John G. Vollmer, Mark A. Fischer
  • Patent number: 7896933
    Abstract: A hydrogen supplying apparatus equipped with a hydrogen separation membrane and a catalyst plate, which is made by forming a catalyst layer on a metal plate, wherein the metal material of the membrane is different in hardness from that of the catalyst plate. A method of producing the hydrogen supplying apparatus, which comprises: bonding a catalyst plate and a hydrogen separation membrane to each other, by friction-stir welding, wherein a welding tool is pressed towards only one of the membrane and catalyst plate, forming a reaction layer between the membrane and the catalyst plate by the frictional heat, and forming ripples in the welded interface.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 1, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akihiro Sato, Takao Ishikawa, Kinya Aota
  • Patent number: 7845544
    Abstract: In a friction stir welding method for friction stirring and welding a material by using a rotating tool having a shoulder and a pin at a front portion of a shaft portion and ejecting a cooling agent from a cooling nozzle to the tool to be cooled thereby, the cooling agent is ejected to a middle portion in an axial direction of the tool to thereby prevent thermal expansion in an axial direction of the tool.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: December 7, 2010
    Assignee: Honda Motor., Ltd.
    Inventors: Haruo Machida, Tadashi Goto
  • Patent number: 7841506
    Abstract: There is provided a method for fabricating a dual alloy structure that may in turn be machined to fabricate a rotary component such as an impeller for use in a gas turbine engine. The method provides a first titanium alloy and a second titanium alloy. The first titanium alloy displays characteristics, such as high strength, suitable for application in the bore area of an impeller. The second titanium alloy displays characteristics, such as high temperature creep resistance, suitable for use in the outer radial area of an impeller. A bore subelement is fabricated from the first titanium alloy. A body subelement is fabricated from the second titanium alloy. The bore subelement and body subelement are joined by inertia welding at a common welding surface. Each subelement and/or the resulting welded structure is heat treated to achieve a desired microstructure.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: November 30, 2010
    Assignee: Honeywell International Inc.
    Inventors: James A. Hall, Krish Krishnamurthy
  • Patent number: 7832102
    Abstract: In a link rod manufacturing method, a bracket material (14) having a ring portion and a mounting projection (15) is made by extrusion molding a material at the length corresponding to a plurality of brackets. On a forward end of the mounting projection (15), an engaging projection (17) with upper and lower steps (7a, 7a) is formed. An arm (2) is made by extrusion molding and regular-size cutting a material in a substantially I-shaped configuration which has a pair of first and second walls (20, 21) parallel extending on upper and lower sides and a third wall (22) crossing at a right angle and connecting these walls. A notch (23) is formed on an end of the third wall (22). When the engaging projection (17) is engaged with the notch (23), each of ends of the first and second walls (20, 21) on the side of ends 2a of the arm 2 is fitted onto the step (7a, 7a) and butted against a vertical wall (17b).
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: November 16, 2010
    Assignee: Yamashita Rubber Kabushiki Kaisha
    Inventors: Takanobu Ide, Yasuhiro Shimada
  • Patent number: 7780061
    Abstract: In one embodiment, a holding fixture is disclosed for locating and stabilizing substantially identical repeated units during joining of the repeated units. In another embodiment, a method is disclosed for manufacturing a structure comprising substantially identical repeated units. In still another embodiment, a welded structure is provided comprising a plurality of welded together substantially identical repeated units.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: August 24, 2010
    Assignee: The Boeing Company
    Inventors: Amy Helvey, V. Blake Slaughter
  • Patent number: 7770777
    Abstract: A portable friction forge welder that applies a direct rotational load to workpieces via a rotational actuator and a direct axial load to workpieces via an axial actuator, where the rotational actuator and the axial actuator have separate and independent power sources. The portable friction forge welder relies on a stored energy linear axial actuator or a center-hole hydraulic axial actuator to achieve high axial forces and a high torque, low rotational velocity to achieve rotational forces, enabling the welder to achieve higher quality welds using larger diameter workpieces than conventional portable friction welders. By applying a high axial force between workpieces prior to high torque rotation of the workpieces results in improved quality welds. A unique clamping device maintains a fixed positional relationship between the workpieces and includes a unique shroud that enables friction welds under a positive pressure inert atmosphere.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: August 10, 2010
    Assignee: Forge Tech, L.L.C.
    Inventor: Michael L. Miller
  • Patent number: 7748101
    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: December 20, 2005
    Date of Patent: July 6, 2010
    Assignee: IP Technologies Holdings, LLC
    Inventor: James T. Williamson
  • Patent number: 7735712
    Abstract: A rotary friction welding machine and method is disclosed. The rotary friction welding machine has a first rotating spindle and a second non-rotating spindle, where a first component of the components being connected to one another is positioned on the first spindle and a second component of the components being connected to one another is positioned on the second spindle. Several flywheel mass bodies are positioned on the rotary friction welding machine, where the flywheel mass bodies cooperate with the first rotating spindle such that at least one of these flywheel mass bodies can be brought out of operating engagement or into operating engagement with the first rotating spindle, where both the flywheel mass bodies that are in operating engagement with the first rotating spindle and the flywheel mass bodies that are out of operating engagement with the first rotating spindle are positioned on the rotary friction welding machine.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: June 15, 2010
    Assignee: MTU Aero Engines GmbH
    Inventors: Karsten Dzialas, Thomas Sparks
  • Patent number: 7685690
    Abstract: Method and apparatus are disclosed wherein a hydroformed part remains in a hydroforming die cavity under hydroforming pressure while an attachable fastener nut is operated to pierce and form a collar in the part by forced insertion of the nut into the part and wherein the nut is fastened to the collar by friction welding, friction skip welding or mechanical locking depending on the form of the fastener nut.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 30, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Mircea M. Ghiran
  • Patent number: 7686202
    Abstract: A gimbaled-shoulder friction stir welding tool includes a pin and first and second annular shoulders coupled to the pin. At least one of the annular shoulders is coupled to the pin for gimbaled motion with respect thereto as the tool is rotated by a friction stir welding apparatus.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 30, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Robert W. Carter, Kirby G. Lawless
  • Publication number: 20100038405
    Abstract: A friction-stir welding apparatus includes a friction-stir welding tool, a spindle on which the tool is located, bearings supporting the spindle for rotational movement, and a heat sink that is mounted on the spindle between the friction-stir welding tool and the bearings. This arrangement reduces and/or eliminates the need for more expensive and complex cooling means, such as a water cooled jacket having seals and a pump. Expected benefits include increased reliability and economy of operation.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 18, 2010
    Inventor: Timothy D. Garner
  • Patent number: 7661193
    Abstract: In a method for manufacturing a float valve apparatus including a valve case, an upper lid incorporated into this valve case to form a valve chamber, and a float valve liftably arranged inside the valve chamber, the upper lid being provided with a lead-out pipe connected to piping of the outside, an exhaust hole which communicates with this lead-out pipe and is opened in an inner surface of the upper lid, and a seal cap which is mounted so as to enclose this exhaust hole and forms a valve seat on which the float valve abuts, the seal cap is welded to an inner surface of the upper lid by spin welding.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: February 16, 2010
    Assignee: Piolax Inc.
    Inventor: Morihiko Kishi
  • Publication number: 20100012706
    Abstract: Provided are a method and a structure for joining members suited for reinforcement of a shape. An auxiliary member 7 is inserted into holes 9a and 9b of first and second portions 8a and 8b of the main member 6, respectively, such that the tip and base ends of the member 7 extend outwardly through the holes. The joining tool 5 is pushed, while being rotated, against the tip end of the auxiliary member 7, so that the material of the auxiliary member 7 softened due to frictional heat and plastic flow is deformed and pushed inside the main member 6 via the hole 9b. Then, the joining tool 5 is released from the main member 6 to allow into solidification the plastic flow portion of the auxiliary member 7. Further, the joining tool 5 is pushed, while being rotated, against the base end of the auxiliary member 7, so that the material of the auxiliary member 7 softened due to frictional heat and plastic flow is deformed and is pushed inside the main member 6 via the hole 9a.
    Type: Application
    Filed: December 14, 2007
    Publication date: January 21, 2010
    Applicant: Hino Motors, Ltd.
    Inventor: Hiroshi Fukuda
  • Publication number: 20100001043
    Abstract: A method and a structure for joining members are provided which are suited for reinforcement of a shape. An auxiliary member 7 is inserted into respective holes 9a and 9b of first and second portions 8a and 8b of a main member 6 such that tip and base ends of the auxiliary member 7 are in the holes 9b and 9a of the second and first portions 8b and 8a, respectively. A joining tool 5 is pushed, while rotated, on the tip end of the auxiliary member 7 to soften the portion of the auxiliary member and the second portion 8b of the main member 6 due to frictional heat and plastic flow. Then, the joining tool 5 is released from the main member 6 to allow the second portion 8b and the plastic flow portion of the auxiliary member 7 to solidify. Further, the joining tool 5 is pushed, while rotated, on the base end of the auxiliary member 7 to soften the portion of the auxiliary member and the first portion 8a of the main member 6 due to frictional heat and plastic flow.
    Type: Application
    Filed: November 9, 2007
    Publication date: January 7, 2010
    Applicant: HINO MOTORS, LTD.
    Inventor: Hiroshi Fukuda
  • Patent number: RE46925
    Abstract: A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is formed. The nozzle includes a hollow, body portion and a substantially solid, head portion defining an exit orifice. The composite electrode can be made of a metallic material (e.g., silver) with high thermal conductivity in the forward portion electrode body adjacent the emitting surface, and the aft portion of the electrode body is made of a second low cost, metallic material with good thermal and electrical conductivity. This composite electrode configuration produces an electrode with reduced electrode wear or pitting comparable to a silver electrode, for a price comparable to that of a copper electrode.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: June 26, 2018
    Assignee: Hypertherm, Inc.
    Inventors: David J. Cook, Kirk H. Ferland, Charles M. Hackett, Yong Yang, Richard W. Couch, Jr., Zhipeng Lu