By Solid-state Bonding (e.g., Diffusion) Patents (Class 219/78.02)
  • Patent number: 11465227
    Abstract: System and method of manufacturing high-strength bonded metal sheets for a battery cell are provided. The method comprises providing a stackup comprising a first metal sheet and a second metal sheet. The first and second metal sheets are separated by a first coating layer. The first coating layer comprises nickel-phosphide. The first metal sheet includes a first material of a first melting point and the second metal sheet includes a second material of a second melting point. The first coating layer including a third material of a third melting point. The method further comprises heating the stackup to allow crystallization of nickel in the first coating layer and remove the residual nickel-phosphide defining an enhanced coating layer. The enhanced coating layer comprises crystallized nickel for high-strength solid state bonding of the first and second metal sheets to the enhanced coating layer.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: October 11, 2022
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, THE PENN STATE RESEARCH FOUNDATION
    Inventors: Nannan Chen, Hongliang Wang, Zhongyi Liu
  • Patent number: 10988832
    Abstract: A titanium-containing structure made of a titanium material includes: a package made of a commercially pure titanium material; and a filler packed into the package, wherein an internal pressure of the package is 10 Pa or less, the pressure being an absolute pressure, and wherein the filler includes at least one selected from titanium sponge, titanium briquette, and titanium scrap, and the filler has the same type of a chemical composition of the commercially pure titanium material. This titanium-containing structure enables production of a titanium product by performing hot working and eliminating the conventional melting step and forging step.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: April 27, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yoshihisa Shirai, Hideki Fujii, Tomoyuki Kitaura
  • Patent number: 10856576
    Abstract: There is provided a cartridge for use in an aerosol-generating system, the aerosol-generating system including an aerosol-generating device, the cartridge configured to be used with the device, wherein the device includes a device housing, an inductor coil positioned on or within the housing, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil, the cartridge including a cartridge housing containing an aerosol-forming substrate and a ferrite mesh susceptor element positioned to heat the aerosol-forming substrate.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: December 8, 2020
    Assignee: Philip Morris Products S.A.
    Inventors: Oleg Mironov, Michel Thorens, Ihar Nikolaevich Zinovik
  • Patent number: 10862016
    Abstract: Provided among other things is an electrical device comprising: a first component that is a semiconductor or an electrical conductor; a second component that is an electrical conductor; and a strong, heat stable junction there between including an intermetallic bond formed of: substantially (a) tin (Sn) or a mixture of Sn and indium (In) thereof, and (b) substantially nickel (Ni). The junction can have an electrical contact resistance that is small compared to the resistance of the electrical device.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 8, 2020
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Patrick J Taylor, Sudhir Trivedi, Wendy L Sarney
  • Patent number: 10632516
    Abstract: Provided is a joint component manufacturing method for reducing occurrence of burrs upon bonding between a first member having a hole and a second member having a shaft portion and firmly bonding both members. In the method for manufacturing a joint component 100, a hole-side weak press-fit portion 112 is formed at a hole 111 of a flat plate ring-shaped first member 110. Moreover, each of a shaft-side weak press-fit portion 122 and a shaft-side strong press-fit portion 124 is formed at a shaft portion 121 of a cylindrical second member 120. The hole-side weak press-fit portion 112 and the shaft-side weak press-fit portion 122 are defined by a first weak press-fit interference Lw1 formed thinner than a first strong press-fit interference Ls1. The shaft-side strong press-fit portion 124 is defined by a first strong press-fit interference Ls1 as the minimum necessary press-fit interference for electric resistance welding upon electric resistance welding between the hole 111 and the shaft portion 121.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 28, 2020
    Assignee: Kabushiki Kaisha F.C.C.
    Inventors: Hiroshi Yamamoto, Tsuyoshi Kise, Hiroyuki Matsuno
  • Patent number: 10497637
    Abstract: A bonded body is provided that is formed by bonding a metal member formed from copper, nickel, or silver, and an aluminum alloy member formed from an aluminum alloy of which a solidus temperature is lower than a eutectic temperature of aluminum and a metal element that constitutes the metal member. The aluminum alloy member and the metal member are subjected to solid-phase diffusion bonding. A chill layer, in which a Si phase of which an aspect ratio of a crystal grain is 2.5 or less and a crystal grain diameter is 15 ?m or less is dispersed, is formed on a bonding interface side with the metal member in the aluminum alloy member. The thickness of the chill layer is set to 50 ?m or greater.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: December 3, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Nobuyuki Terasaki, Yoshiyuki Nagatomo
  • Patent number: 10497585
    Abstract: A bonded body is provided that is formed by bonding a metal member formed from copper, nickel, or silver, and an aluminum alloy member formed from an aluminum alloy of which a solidus temperature is lower than a eutectic temperature of aluminum and a metal element that constitutes the metal member. The aluminum alloy member and the metal member are subjected to solid-phase diffusion bonding. A chill layer, in which a Si phase of which an aspect ratio of a crystal grain is 2.5 or less and a crystal grain diameter is 15 ?m or less is dispersed, is formed on a bonding interface side with the metal member in the aluminum alloy member. The thickness of the chill layer is set to 50 ?m or greater.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: December 3, 2019
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Nobuyuki Terasaki, Yoshiyuki Nagatomo
  • Patent number: 9388037
    Abstract: A bonding technology is disclosed that can form an anodic, conductive bond between two optically transparent substrates. The anodic bond may be accompanied by a metal alloy, solder, eutectic and polymer bond. The first anodic bond may provide one attribute such as hermeticity, whereas the second bond may provide another attribute, such as electrical conductivity.
    Type: Grant
    Filed: January 19, 2014
    Date of Patent: July 12, 2016
    Assignee: Innovative Micro Technology
    Inventors: Benedikt Zeyen, Jeffery F. Summers
  • Patent number: 9108267
    Abstract: A pressure surface of a first metal material for receiving a pressure therethrough is fabricated to have a directional component parallel to a pressure-application direction and a directional component perpendicular to the pressure-application direction, and an electrically-conductive core is fabricated to have a surface along the pressure surface and a surface perpendicular to the pressure-application direction. An assembly comprising the first metal material, the second metal material and the core is set in a pulse electric-current bonding unit to perform a pulse electric-current bonding process.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: August 18, 2015
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Tadashi Masuoka, Akinaga Kumakawa, Shin-ichi Moriya, Tomohiro Sato, Shinichi Takei
  • Patent number: 9018560
    Abstract: A turbine component repair apparatus includes: a first die having male and female halves for clamping a first section of a turbine blade with a platform and a root portion of an airfoil, the first die having a recess shaped to receive the root portion and retain a faying surface thereof in predetermined alignment; and a second die having male and female halves for clamping a repair section which defines a tip portion of the airfoil, the second die having a second recess shaped to receive the tip portion and retain a faying surface of the tip portion in predetermined alignment. The first and second dies have mating front faces configured to align their bottom surfaces in a common plane. A alignment device is removably attached to the second die to temporarily align the repair section in the absence of the male half of the second die.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: April 28, 2015
    Assignee: General Electric Company
    Inventors: Michael Gary Krizansky, Gary R. Peters, Hai Sam
  • Publication number: 20140299582
    Abstract: A current diffusion bonding apparatus (1) includes upper and lower electrodes (11, 12), which sandwich members to be bonded (M, M) and which are electrically conductible with the members to be bonded (M, M); a power supply unit (20), which supplies a current to the electrodes (11, 12); and a pressurizing unit (30), which applies a pressure to bonding surfaces S. If a temperature T detected by a temperature sensor (45) is a first set temperature T1 or lower, the pressurizing unit (30) applies a pressure to the bonding surfaces S while restricting the displacement of the members to be bonded (M, M), and if the temperature T exceeds the first set temperature T1, the pressurizing unit (30) applies a pressure based on the elastic force of a spring (35d), which elastically deforms according to the displacement of the members to be bonded (M, M), to the bonding surfaces S.
    Type: Application
    Filed: November 4, 2011
    Publication date: October 9, 2014
    Applicant: ECO-A CO., LTD.
    Inventors: Yoshinobu Mizuno, Makoto Ito, Kozo Ohama, Hitoshi Kabasawa
  • Patent number: 8827141
    Abstract: The present invention relates to a process and a device for joining precious metal sheets (1,4) to form structural parts, and to the products (1,4) made by the process.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: September 9, 2014
    Assignee: Umicore AG & Co. KG
    Inventors: Rudolf Singer, Stefan Zeuner, Bernd Weber, Joerg Kopatz
  • Publication number: 20140198438
    Abstract: An information handling system is disclosed. The information handling system comprises a chassis including a metal base, and a metal insulation layer, and a processing unit coupled to the chassis.
    Type: Application
    Filed: January 14, 2013
    Publication date: July 17, 2014
    Inventors: Deeder M. Aurongzeb, Andrew T. Sultenfuss
  • Patent number: 8716630
    Abstract: A visually seamless method of joining a first piece of metal and a second piece of metal is described. The first piece of metal is placed in contact with an edge of the second piece of metal. In some embodiments, the edge includes a sacrificial lip. The first piece of metal forming a junction area with the edge of the second piece of metal, applying a forging force to the first piece of metal, the forging force having an effect of creating an extremely tight fit up between the first and the second pieces of metal, welding the first and the second pieces to form an assembly and forming a cosmetically enhancing protective layer on the surface of the assembly, the protective layer obscuring any visible artifacts on the surface of the assembly, the obscured visible artifacts including any discoloration or discontinuity created by the laser welding.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 6, 2014
    Assignee: Apple Inc.
    Inventors: Carlo Catalano, Derrick Jue, Brian Miehm, Takahiro Oshima, Masashige Tatebe
  • Patent number: 8552331
    Abstract: A method for producing contact materials being employed in electric/electronic circuits consists of a step 1-1 for supplying a spring base strip 1, a step 2-1 for supplying a noble metal wire 2, a seam welding step 3-1 for welding the metal wire 2 to the spring base strip after the spring base strip 1 and the noble metal wire 2 are held together, and a step 4-1 for winding a welded product. The method further includes a testing step 8-1 for determining a preciseness of a welded position and for determining a welded strength to peel the noble metal wire 2 from the spring base strip 1, which are performed between the seam welding step 3-1 and the winding step 4-1. Specimens for the testing step 8-1 are sampled at the beginning of and at the end of a production lot of the contact material.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: October 8, 2013
    Assignee: Sept. 1 Co., Ltd.
    Inventors: Yoshiaki Kasai, Kiyoshi Takizawa
  • Patent number: 8516674
    Abstract: A method for bonding airfoil sections includes aligning upper and stub airfoil sections having upper airfoil pressure and suction sides and stub airfoil pressure and suction sides respectively, pressing together upper and stub airfoil cross sections at upper and stub airfoil distal ends of the upper and stub airfoil sections respectively, and then resistance welding, preferably solid state resistance welding, the upper and stub airfoil sections together along the upper and stub airfoil cross sections by passing electrical current across the upper and stub airfoil cross sections. The upper and stub airfoil sections may be clamped between pressure and suction side upper airfoil electrodes and between the stub airfoil pressure and suction sides respectively. The method may be performed while the stub airfoil section is attached to an airfoil carrier such as a rotor disk rim, a gas turbine engine drum, or a gas turbine engine blade platform.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 27, 2013
    Assignee: General Electric Company
    Inventors: Gary Edward Trewiler, Stephen Joseph Ferrigno, Melvin Howard Wilkins, Timothy Joseph Trapp, Matthew Stewart, Gregory Christopher Firestone
  • Patent number: 8431857
    Abstract: A process for joining a brass part and a silicone carbide ceramics part, comprising steps of: providing a metal part made of brass, a ceramic part made of silicone carbide ceramics, a titanium foil and a nickel foil; bring the metal part, ceramic part, titanium foil and nickel foil into contact, with the titanium and nickel foil inserted between the metal part and ceramic part; applying a pressure of about 20 MPa˜60 MPa to the parts to be joined; and simultaneously applying a pulse electric current to the parts while the pressure is applied for heating up the parts to a temperature of about 950° C. to about 1150° C. at a rate of about 50° C./min˜300° C./min, maintaining the temperature for about 20 minutes˜40 minutes.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 30, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Wen-Feng Hu
  • Patent number: 8304683
    Abstract: A seam welding apparatus and a seam welding method perform a seaming process on workpieces of various shapes having flange sections, by preventing a welding track formed by upper and lower rotary electrodes from becoming displaced from a welding reference line established on the flange section. The seam welding apparatus includes two rotary electrodes for gripping the flange section therebetween while seam-welding the flange section, a support for synchronizing movements of the two rotary electrodes with each other in a widthwise direction of the flange section, a turning mechanism for pressing at least one of the two rotary electrodes toward the workpiece body, a roller that abuts against an end face of the flange section, and roller adjusting means for positionally adjusting the roller.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: November 6, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Eisaku Hasegawa, Shogo Matsuda, Takafumi Ikeda
  • Patent number: 8070042
    Abstract: A process for joining a stainless steel part and a silicon carbide ceramic part, comprising steps of: providing a stainless steel part, a SiC ceramic part, and a Al foil; bringing surfaces of the stainless steel part, SiC ceramic part, and Al foil into contact, with the titanium foil inserted between the metal part and ceramic part; applying a pulsed electric current to the stainless steel part, SiC ceramic part, and Al foil, heating the stainless steel part, SiC ceramic part, and Al foil to a joining temperature of about 500-650° C., and simultaneously applying a joining pressure of about 50-100 MPa to the stainless steel part, SiC ceramic part, and Al foil while the current is applied, and maintaining the joining temperature and the joining pressure for about 10-30 minutes.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 6, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Hsin-Pei Chang, Wen-Rong Chen, Huann-Wu Chiang, Cheng-Shi Chen, Wen-Feng Hu
  • Publication number: 20110232290
    Abstract: An apparatus and method for protecting an inner radial surface of a housing of a turbomachine from corrosion. The method includes tapering the inner radial surface of the housing and a corresponding outer radial surface of a corrosion-resistant liner, and heating the housing to increase a diameter of the inner radial surface of the housing. The method also includes inserting the corrosion-resistant liner at least partially into the housing, and attaching the corrosion-resistant liner to the inner radial surface of the housing a solid-state bonding process.
    Type: Application
    Filed: January 5, 2011
    Publication date: September 29, 2011
    Applicant: DRESSER-RAND COMPANY
    Inventors: Byron L. Mohr, David C. Seib
  • Publication number: 20110147862
    Abstract: In a micromechanical component having an inclined structure and a corresponding manufacturing method, the component includes a substrate having a surface; a first anchor, which is provided on the surface of the substrate and which extends away from the substrate; and at least one cantilever, which is provided on a lateral surface of the anchor, and which points at an inclination away from the anchor.
    Type: Application
    Filed: November 28, 2008
    Publication date: June 23, 2011
    Inventors: Tjalf Pirk, Stefan Pinter, Hubert Benzel, Herbert Weber, Michael Krueger, Robert Sattler, Frederic Njikam Njimonzie, Joerg Muchow, Joachim Fritz, Christoph Schelling, Christoph Friese
  • Patent number: 7655879
    Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: February 2, 2010
    Assignee: Schott AG
    Inventors: Jorg Witte, Manfred Borens, Franz-Peter Eckes, Stefen Bauer, Helmut Schoppe, Andreas Stolzenberg, Stefan Friedrich Melchior, Robert Ruehl
  • Publication number: 20090250439
    Abstract: A method for forming a clad structure utilizing a moving resistance energy source. The method forms a metallurgical bond between a cladding layer and a primary layer such that at least 2% of a cladding layer surface is metallurgically fusion bonded to a primary layer surface. The fusion bond does not extend all the way through the primary layer or the cladding layer. Either, or both, of the layers may incorporate surface texturing to reduce the contact area between the layers, and melting point suppressants may be incorporated into the method.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 8, 2009
    Inventors: DAVID WORKMAN, Fabian Orth, Timothy Stotler
  • Patent number: 7229598
    Abstract: A honeycomb body, which is composed in such a manner that a strip of corrugated foil made of heat-resistant stainless steel containing aluminum and a strip of flat foil made of stainless steel are alternately wound or laminated on each other, is incorporated into an outer cylinder made of metal and integrated into one body by means of diffusion bonding, so that a diffusion bonded metallic catalyst carrier can be formed. Surface roughness of the strip of foil after the completion of diffusion bonding is 0.001 to 2.0 ?m when it is expressed by center line average height Ra, and no sintered bridges are formed at both end portions of the diffusion bonded section in the longitudinal direction. The catalyst carrier is manufactured in a condition so that ?b, which is defined by ?b=6.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: June 12, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Yasuo Takahashi, Tadayuki Otani, Kazutoshi Iwami, Masayuki Kasuya
  • Patent number: 7038160
    Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: May 2, 2006
    Assignee: Schott Glas
    Inventors: Jorq Witte, Manfred Borens, Franz-Peter Eckes, Stefan Bauer, Helmut Schoppe, Andreas Stolzenberg, Stefan Freidrich Melchior, Robert Ruehl
  • Patent number: 6992261
    Abstract: A method of forming a sputtering target assembly and other metal articles is described. Sputtering target assemblies and metal articles are also described. The method includes bonding a sputter target to a backing plate using resistance heating or welding to bond assembly members that respectively include mating projections and grooves formed in bonding surfaces thereof.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: January 31, 2006
    Assignee: Cabot Corporation
    Inventors: Mikhail Y. Kachalov, Charles E. Wickersham, Jr.
  • Patent number: 6899265
    Abstract: Disclosed is a novel electric joining method and apparatus that can overcome the defects associated with the prior art while taking advantage of the technology for the pulse excited sintering process such as spark plasma sintering process or the hot-press joining process.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: May 31, 2005
    Assignees: Sumitomo Coal Mining Co., Ltd., Suwanetsu Kogyo Co., Ltd.
    Inventors: Yoshito Miyasaka, Masao Tokita, Hitoshi Karasawa, Fumitake Nishiyama
  • Patent number: 6814544
    Abstract: In a joining method for manufacturing a rotor blade by joining a plurality of members, the members are pressed so as to exert a predetermined pressure on the bonding interface. A pulse voltage is applied to the members to pass electric current therethrough, and the joint portion is heated by resistance heating generated at the bonding interface and in the bulk of the members to cause diffusion bonding and thereby to join the members to each other. With this method, good joining can be achieved without substantially changing the crystal structure and mechanical properties of the base metals.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: November 9, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Tsukamoto, Kunio Miyazaki, Masahisa Inagaki
  • Patent number: 6642471
    Abstract: This invention provides an improved method of projection welding which enables the sound welding of high-carbon, and high-tension low-alloy steels. A spacer is disposed between two parts to be joined by projection welding. At least one of the parts is made of a high-carbon, or high-tension low-alloy steel. The spacer is a thin sheet, or coating formed on at least one of those parts.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: November 4, 2003
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventors: Kaneyuki Imai, Ryuichi Kusanagi
  • Patent number: 6605794
    Abstract: Electrical resistance welding with low heat input in conjunction with applied forces effecting compressive forces in the weld are utilized to weld materials sensitive to hot cracking. An electrode coupled with a force applicator performs a low heat input resistance-type weld with triaxial compressive forces introduced in the weld to prevent or inhibit the formation of tensile induced cracks in the weld. This enables subsequent fusion welding overlying the initial weld without risk of hot cracking in the final weld.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: August 12, 2003
    Assignee: General Electric Company
    Inventors: Henry Peter Offer, Eric Russel Willis
  • Publication number: 20030106877
    Abstract: Disclosed is a novel electric joining method and apparatus that can overcome the defects associated with the prior art while taking advantage of the technology for the pulse excited sintering process such as spark plasma sintering process or the hot-press joining process.
    Type: Application
    Filed: January 16, 2003
    Publication date: June 12, 2003
    Applicant: SUMITOMO COAL MINING CO., LTD.
    Inventors: Yoshito Miyasaka, Masao Tokita, Hitoshi Karasawa, Fumitake Nishiyama
  • Patent number: 6552292
    Abstract: When a seat (3) (FIG. 6A) on which a wax layer (7) is formed via a melting reaction layer (5) is brought into contact with a head (2) and heated and pressed in this state, a melting reaction layer (6) forms below the wax layer (FIG. 6B). When electric current application and pressing are continued from this state, a wax which has not reacted in the wax layer (7) in the formation of the melting reaction layer (6) is discharged from between the melting reaction layers (5) and (6). When electrical current application and pressing are further continued from this state, the two melting reaction layers (5) and (6) diffuse each other. The result is that a ternary alloy bonding layer (10) containing Fe, Al, and Zn, which constitute the melting reaction layers (5) and (6) is formed between the seat (3) and the head (2) (FIG. 6D).
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: April 22, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Seiji Nomura, Satoshi Nanba, Yukihiro Sugimoto, Yukio Yamamoto
  • Patent number: 6525289
    Abstract: The piston for a magneto-rheological fluid system is manufactured from a piston skirt of a material having a high magnetic permeability and a piston plate which closes one end of the piston skirt having a low magnetic permeability and therefore must be made out of a material such as stainless steel. The piston is manufactured by placing the plate on one electrode and clamping another set of electrodes against the outer circumferential surface of the piston ring or skirt. The plate and ring are brought into contact with one another while applying a current through the piston ring and the piston plate, thereby heating interfering portions of the ring and plate and permitting the plate to be forced inside of the ring while at the same time allowing the softened or plastic portions of the ring and plate to intermingle with one another and thus form a solid state bond.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: February 25, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Venkatasubramanian Ananthanarayanan, Michael Henry Froning, Sohrab Sadri Lonbani, Janusz Pawel Goldasz, Michael Everett Hornback, Patrick Neil Hopkins, William Charles Kruckemeyer
  • Patent number: 6515250
    Abstract: Disclosed is a novel electric joining method and apparatus that can overcome the defects associated with the prior art while taking advantage of the technology for the pulse excited sintering process such as spark plasma sintering process or the hot-press joining process.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: February 4, 2003
    Assignees: Sumitomo Coal Mining Co., Ltd., Suwanetsu Kogyo Co., Ltd.
    Inventors: Yoshito Miyasaka, Masao Tokita, Hitoshi Karasawa, Fumitake Nishiyama
  • Patent number: 6417478
    Abstract: To provide an anodic bonding method which can favorably bond between members different in thermal expansion coefficient. In an anodic bonding method of applying a voltage to and bonding between a first member 10 having a bonding film 11 on a bonding surface and a second member 12 closely put on the bonding surface of the first member 10 through the bonding film 11 in a manner that the first member 10 is rendered as an anode, characterized in that: the bonding film 11 is of a metal film and the second member 12 is of a soda-lime glass, and a bonding temperature is at 100-200° C. and an application voltage is at 0.5-5.0 kV.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: July 9, 2002
    Assignee: Seiko Instruments Inc.
    Inventors: Masayoshi Shiraishi, Kiyoshi Aratake, Yasuhiro Nohara
  • Publication number: 20020011468
    Abstract: Disclosed is a novel electric joining method and apparatus that can overcome the defects associated with the prior art while taking advantage of the technology for the pulse excited sintering process such as spark plasma sintering process or the hot-press joining process.
    Type: Application
    Filed: June 4, 2001
    Publication date: January 31, 2002
    Applicant: SUMITOMO COAL MINING CO., LTD.
    Inventors: Yoshito Miyasaka, Masao Tokita, Hitoshi Karasawa, Fumitake Nishiyama
  • Patent number: 6234378
    Abstract: A method for bonding a gyroscope component to a gyroscope body using the solid liquid Inter Diffusion (SLID) process. The resulting bond structure has a larger operating range than the bonding-materials used to create to bond. Mating material layers may be added to the bond to improve bonding between the bonding materials and the component and between the bonding materials and the gyroscope body.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: May 22, 2001
    Assignee: Honeywell Inc.
    Inventors: Carol M. Ford, William P. Platt
  • Patent number: 6222150
    Abstract: The present invention provides a method for joining two metal members into a joined metal member. The method comprise steps of; applying a brazing material having a higher melting point than both the members on the surface of a first metal member and heating them to form a brazing material on said surface and a braze-diffusion layer under the brazing material in the surface area of the first member; and, then, pressing the first and another second metal members between which the brazing material is interposed during heating at a higher temperature than said melting point of the brazing material to squeeze the molten brazing material out between both the contact surfaces of both the metal members, therefor the two metal members being joined by the braze diffusion layers formed in both the surfaces into the joined metal member.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: April 24, 2001
    Assignee: Mazda Motor Corporation
    Inventors: Seiji Nomura, Satoshi Nanba, Yukio Yamamoto, Yukihiro Sugimoto, Shinya Shibata