Methods Patents (Class 219/121.14)
  • Patent number: 10399170
    Abstract: A die attachment apparatus for attaching a semiconductor die onto a substrate having a metallic surface comprises a material dispensing station for dispensing a bonding material onto the substrate and a die attachment station for placing the semiconductor die onto the bonding material which has been dispensed onto the substrate. An activating gas generator positioned before the die attachment station introduces activated forming gas onto the substrate in order to reduce oxides on the substrate.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 3, 2019
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Pingliang Tu, Zhao Yang, Jun Qi, Chun Hung Samuel Ip
  • Patent number: 10279420
    Abstract: Provided is a rapid manufacturing process of ferrous and non-ferrous parts using a plasma electron beam in which the plasma electron beam is workable even in a low vacuum pressure environment and has a relatively large radiation range, productivity of the process is improved as a high-power beam can be emitted to a ferrous and non-ferrous powder, and production costs are reduced due to low maintenance and manufacturing costs.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: May 7, 2019
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITY
    Inventors: Dong Gyu Ahn, Ho Jin Lee
  • Patent number: 10280984
    Abstract: A cup member has a cylindrical portion, a bottom portion, and a short shaft portion having a solid shaft shape and including a joining end surface at an end portion thereof. A shaft member has a solid shaft shape and includes a joining end surface at one end thereof. The joining end surfaces of the cup and shaft members are brought into abutment against each other and welded from a radially outer side to form a welded portion. At this time, center segregation is prevented from interfering with the welded portion. The cup member is formed by forging including upsetting a billet having a columnar shape successively in a plurality of stages, extruding the cylindrical portion and the short shaft portion, and ironing the cylindrical portion. In the course of the upsetting, a region of the billet corresponding to a bottom side of the cup member is narrowed.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 7, 2019
    Assignee: NTN CORPORATION
    Inventors: Jun Numamoto, Kenichi Nakano, Takuya Fujita, Akira Sera, Hiroshi Matsunaga, Tatsuro Sugiyama, Masazumi Kobayashi
  • Patent number: 10274019
    Abstract: Provided is a method of manufacturing an outer joint member of a constant velocity universal joint, which is constructed by forming a cup section having track grooves, and a shaft section, and by welding a cup member and a shaft member, the method including: forming the cup member and the shaft member of medium carbon steel; preparing a cup member having a cylindrical portion and a bottom portion integrally formed by forging, and a joining end surface in a machining step; preparing a shaft member having a joining end surface formed in a machining step; bringing the joining end surface of the cup member and the joining end surface of the shaft member into abutment against each other; welding the cup member and the shaft member by radiating a beam; and performing, after the welding, an ultrasonic flaw detection-inspection step.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 30, 2019
    Assignee: NTN CORPORATION
    Inventors: Masafumi Osugi, Tsuyoshi Ueno, Shintaro Suzuki, Hiromi Nagai, Tatsuro Sugiyama
  • Patent number: 10221895
    Abstract: A method of manufacturing an outer joint member of a constant velocity universal joint includes forming cup and shaft members using medium carbon steel, preparing, as the cup member, a cup member having cylindrical and bottom portions integrally formed, and a joining end surface formed on an outer surface of the bottom portion, preparing, as the shaft member, a shaft member having a joining end surface to be joined to the bottom portion of the cup member, and bringing the joining end surfaces of the cup and shaft members into abutment against each other. The method also includes welding the cup and shaft members from an outer side of the cup member to an abutment portion between the cup and shaft members in a radial direction of the cup member under a state in which a hollow cavity portion is formed inside the abutment portion.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: March 5, 2019
    Assignee: NTN CORPORATION
    Inventors: Shintaro Suzuki, Yoshiya Mano, Tsuneaki Hiraoka, Tatsuro Sugiyama, Masazumi Kobayashi
  • Patent number: 10201876
    Abstract: Irradiation with a laser beam is started at a welding start position of two members that are stacked together, and the output of the laser beam is set so that spatter is not generated. After the start of the irradiation, the output of the laser beam is gradually increased so that a penetration depth from an irradiated edge to a deeper location between abutting surfaces of the two members falls within a predetermined penetration depth range while the laser beam is not moved. After the output of the laser beam is gradually increased, the laser beam is moved toward a welding end position so that the penetration depth is maintained within the penetration depth range.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 12, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroki Yamamoto, Honami Ohara
  • Patent number: 10174710
    Abstract: A method for producing a piston may include aligning at least two piston components along corresponding joining surfaces, activating a laser designed for deep-welding, and aligning a laser beam with a starting point. The method may then include increasing a power density of the laser beam over a first defined path along the joining surfaces to produce a weld seam with an increasing weld seam depth, deep welding along the joining surfaces to produce a deep weld seam with a substantially constant weld seam depth up to a defined end point, and reducing the power density over a second defined path to produce a weld seam with a decreasing weld seam depth. The method may further include overwelding at least part of at least one of the first and second defined paths by a laser designed for heat conduction welding to produce at least one heat conduction weld seam.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: January 8, 2019
    Assignee: Mahle International GmbH
    Inventors: Karlheinz Bing, Daniel Mock, Mathias Petrowitsch
  • Patent number: 10105780
    Abstract: A system for and a method of controlling a filler wire and/or an heat source is provided. The system includes a high intensity energy source configured to heat at least one workpiece to create a molten puddle on a surface of the at least one workpiece. A filler wire feeder is configured to feed a filler wire into said molten puddle, and a travel direction controller is configured to advance the high intensity energy source and the filler wire in a travel direction to deposit the filler wire on the at least one workpiece. The system also includes a controller configured to move the filler wire and/or the energy source in at least a first direction during the feeding and advancing of the filler wire. At least the first direction is controlled to obtain a desired shape, profile, height, size, or admixture of a bead formed by the molten puddle.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 23, 2018
    Assignee: LINCOLN GLOBAL, INC.
    Inventor: Elliott Ash
  • Patent number: 10107338
    Abstract: Provided is a method of manufacturing an outer joint member of a constant velocity universal joint, which is constructed by welding a cup member and a shaft member, the method including: forming the cup member and the shaft member of medium carbon steel; preparing; preparing; bringing the joining end surface of the cup member and the joining end surface of the shaft member into abutment against each other; welding the cup member and the shaft member; and performing, after the welding, ultrasonic flaw detection-inspection from any one of a surface side of the cup member and a surface side of the shaft member, which has the another one of the joining end surface of the cup member and the joining end surface of the shaft member.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 23, 2018
    Assignee: NTN CORPORATION
    Inventors: Hiromi Nagai, Naoki Nakagawa, Yasuhiko Sakakibara, Tatsuro Sugiyama, Masazumi Kobayashi
  • Patent number: 10071423
    Abstract: Various embodiments of the present invention relate to a method for welding a workpiece comprising the steps of: making a first weld at a first position on said workpiece with a high energy beam, deflecting the high energy beam with at least one deflection lens for making a second weld at a second position on said workpiece, focusing the high energy beam on said workpiece with at least one focusing lens, shaping the high energy beam on said workpiece with at least one astigmatism lens so that the shape of the high energy beam on said workpiece is longer in a direction parallel to a deflection direction of said high energy beam than in a direction perpendicular to said deflection direction of said high energy beam. The invention is also related to the use of an astigmatism lens and to a method for forming a three dimensional article.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 11, 2018
    Assignee: Arcam AB
    Inventors: Johan Backlund, Tomas Lock
  • Patent number: 10071540
    Abstract: A resin-junction body includes a first resin member, a second resin member including a concave portion and laminated on the first resin member so as to contact the first resin member at a contact surface. The concave portion comprises a bottom face on a first resin member side. The resin-junction body further includes a joining layer that joins the first resin member and the second resin member and that extends from the bottom face towards the first resin member.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: September 11, 2018
    Assignee: FUNAI ELECTRIC CO., LTD.
    Inventor: Yutaka Takahashi
  • Patent number: 10058921
    Abstract: Various embodiments of the present invention relate to a method for welding a workpiece comprising the steps of: making a first weld at a first position on said workpiece with a high energy beam, deflecting the high energy beam with at least one deflection lens for making a second weld at a second position on said workpiece, focusing the high energy beam on said workpiece with at least one focusing lens, shaping the high energy beam on said workpiece with at least one astigmatism lens so that the shape of the high energy beam on said workpiece is longer in a direction parallel to a deflection direction of said high energy beam than in a direction perpendicular to said deflection direction of said high energy beam. The invention is also related to the use of an astigmatism lens and to a method for forming a three dimensional article.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: August 28, 2018
    Assignee: Arcam AB
    Inventors: Johan Backlund, Tomas Lock
  • Patent number: 10047607
    Abstract: A component for a turbocharger can include a shaft made of a first material where the shaft includes a turbine wheel end and a shaft axis; a turbine wheel made of a second material where the turbine wheel includes a shaft end and a turbine wheel axis; a weld joint formed by solidification of at least a portion of a weld pool that includes the first material and the second material, where the weld joint joins the turbine wheel end of the shaft and the shaft end of the turbine wheel and where the weld joint includes an inner radial border and an outer radial border; a reservoir disposed radially inwardly of the inner radial border of the weld joint; and a solidified portion of the weld pool disposed in the reservoir. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: August 14, 2018
    Assignee: Honeywell International Inc.
    Inventors: Michel Maurice Thirion, Brent Zollinger, Nicolas Vazeille, Marc Wilson, Didier Horlaville, Dominique Armand, Andrei Minculescu
  • Patent number: 10016958
    Abstract: Method for manufacturing sheet metal blanks, in particular hybrid sheet metal blanks, a first sheet metal part being manufactured from a first sheet metal part material, a second sheet metal part being manufactured from a second sheet metal part material, an elongate connecting sheet metal strip being provided, and the connecting sheet metal strip being connected along a first longitudinal edge to the first sheet metal part by a thermal joint, and the connecting sheet metal strip being connected along a second longitudinal edge to the second sheet metal part by means of a preferably thermal joint, characterized in that, in a first process step, the connecting sheet metal strip is connected to the first sheet metal part and, in a second process step, the connecting sheet metal strip is connected to the second sheet metal part, the first and the second process steps taking place within a production line.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 10, 2018
    Assignee: Wisco Lasertechnik GmbH
    Inventor: Gerhard Alber
  • Patent number: 9956652
    Abstract: A method for producing a rotor, particularly a turbine disk or a turbine ring for a turbine stage of a turbomachine, wherein at least the following steps are carried out: producing a blade ring (14) including a plurality of rotor blades (12), welding adapters (22) together which are disposed in the region of blade footings of the rotor blades (12), wherein at least substantially radial weld seams (30a) having predetermined welding depths are generated, disposing a rotor disk (32) or a rotor ring on the blade ring (14), and welding the rotor disk (32) or the rotor ring to the adapters (22) of the rotor blades (12), wherein at least one further weld seam (30b) is generated. A rotor, particularly a turbine disk or a turbine ring for a turbine stage of a turbomachine is also disclosed.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: May 1, 2018
    Assignee: MTU Aero Engines GmbH
    Inventor: Robert Schmidt
  • Patent number: 9956647
    Abstract: A welded assembly includes a first sheet and a second sheet. The second sheet is disposed over a portion of the first sheet and defines an overlap portion between the first and second sheets. A weld fastening the second sheet to the first sheet in the overlap area connects the second sheet to the first sheet for distributing stress uniformly across a welded portion of the overlap area.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: May 1, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Russell P. Parrish, Thomas M. Barry, Jr., Felix I Quiros-Pedraza, Harvey C. Lee, Michael A. Disori, Alison Schoolcraft
  • Patent number: 9951856
    Abstract: A sprocket assembly, formed of dissimilar materials, includes at least one tooth member made of ferrous material and a circular disk made of a light metal such as aluminum or an aluminum alloy. The circular disk supports the tooth member on an outer peripheral surface thereof. The tooth member is dissimilar-metal welded to the circular disk, either by laser welding or by electronic beam welding. Optionally, multiple individual tooth members may be fitted into notches formed in an outer periphery of the circular disk, and welded therein. A method of making a sprocket assembly is also described.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 24, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventor: Shujiro Inui
  • Patent number: 9950367
    Abstract: Various embodiments of the present invention relate to a method for welding a workpiece comprising the steps of: making a first weld at a first position on said workpiece with a high energy beam, deflecting the high energy beam with at least one deflection lens for making a second weld at a second position on said workpiece, focusing the high energy beam on said workpiece with at least one focusing lens, shaping the high energy beam on said workpiece with at least one astigmatism lens so that the shape of the high energy beam on said workpiece is longer in a direction parallel to a deflection direction of said high energy beam than in a direction perpendicular to said deflection direction of said high energy beam. The invention is also related to the use of an astigmatism lens and to a method for forming a three dimensional article.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 24, 2018
    Assignee: ARCAM AB
    Inventors: Johan Backlund, Tomas Lock
  • Patent number: 9897513
    Abstract: A method for verifying a size of an energy beam spot, said method comprising the steps of providing a first beam spot having a predetermined size and power at a first position on a work piece, varying a focus and/or astigmatism lens setting for said first beam spot until max intensity for the beam spot is detected, comparing the detected settings of said focus lens and/or astigmatism lens for said maximum intensity of the beam spot with stored settings of said focus lens and/or astigmatism lens for the beam spot with said predetermined size and power, repeating step a-c for different predetermined beam powers, repeating step a-d for different positions on said work piece, wherein said beam spot size is verified if each detected settings of said focus lens and/or astigmatism lens are deviating less than a predetermined value from corresponding stored settings of said focus lens and/or astigmatism lens.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 20, 2018
    Assignee: ARCAM AB
    Inventor: Anders Snis
  • Patent number: 9833187
    Abstract: Method for examining bone in vivo, comprises obtaining a laser beam; modulating the laser beam to insert therein photoacoustic frequencies including optical frequencies and acoustic frequencies, the acoustic frequencies being able to give rise to acoustic waves; directing the modulated beam at a bone to cause acoustic waves resulting from the beam to travel through the bone; analyzing received signals from the bone including signals resulting from the acoustic waves, to determine a mineral density and a bone quality for said bone, and thus obtain in-vivo data that can be of assistance to a doctor when diagnosing osteoporosis.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 5, 2017
    Assignee: Ramot at Tel-Aviv University Ltd.
    Inventors: Avishay Eyal, Idan Steinberg, Israel Gannot
  • Patent number: 9724785
    Abstract: A weldment member for a gas turbine engine including a forward welding member and an aft welding member. The forward welding member has an annular shape with a forward welding face formed at one end. The forward welding face has a forward radiographic marking hole formed therein. The aft welding member has an annular shape with an aft welding face formed at one end. The aft welding face has an aft radiographic marking hole formed therein. The forward welding face is aligned with the aft welding face and the forward radiographic marking hole is angularly offset from the aft radiographic marking hole.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 8, 2017
    Assignee: Solar Turbines Incorporated
    Inventors: Benjamin Richard Abraham, Jeffrey C. Brill, Daniel Patrick Weller
  • Patent number: 9714475
    Abstract: Provided is a method for obtaining a cooking vessel comprising the following steps: producing a container having an aluminum outer face and an inner face, carrying out hard anodization of at least the outer face of the container. At least one coloring step is carried out on the anodized outer face following hard anodization, said coloring step employing at least one water-soluble anthraquinone organic dye. Also provided is a culinary article or an electric cooking appliance comprising a cooking vessel obtained by the above method.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: July 25, 2017
    Assignee: SEB S.A.
    Inventors: Martin Rubio, Stephane Tuffe
  • Patent number: 9708685
    Abstract: The invention provides a hot stamped structural component (20) for an automotive vehicle, such as a B-pillar, including a first part (22) formed of a high strength steel material joined to a second part (24) formed of a high ductility steel material. The structural component (20) also includes a locally tempered transition zone (26) along the joint (28) to reduce the potential for failure along the joint (28). The transition zone (26) has strength and ductility levels between the strength and ductility levels of the remaining portions of the first and second parts (22, 24). The tempering step can be incorporated into a laser trimming cell or assembly cell, and thus the transition zone (26) can be created without adding an additional process step or increasing cycle time.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 18, 2017
    Assignee: Magna International Inc.
    Inventor: Richard Allen Teague
  • Patent number: 9687929
    Abstract: A system for and a method of controlling filler wire is provided. The system includes a high intensity energy source configured to heat at least one workpiece to create a molten puddle on a surface of the at least one workpiece. A filler wire feeder is configured to feed a filler wire into said molten puddle, and a travel direction controller is configured to advance the high intensity energy source and the filler wire in a travel direction to deposit the filler wire on the at least one workpiece. The system also includes a filler wire controller configured to move the filler wire in at least a first direction during the feeding and advancing of the filler wire. At least the first direction is controlled to obtain a desired shape, profile, height, size, or an admixture of a bead formed by the molten puddle.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 27, 2017
    Assignee: LINCOLN GLOBAL, INC.
    Inventor: Elliott Ash
  • Patent number: 9566664
    Abstract: The invention relates to a method for laser remote processing of a component on a fillet, wherein a laser beam is directed by means of a scanner device onto the component and guided over said component. The working range of the laser beam on the workpiece is illuminated with illuminating radiation and is captured by at least one image capturing unit. The illuminating radiation is directed onto the component at an angle of attack which is set depending the fillet geometry of the component. The captured image data are evaluated automatically and, with the aid of the evaluation, if appropriate, an automatic correction of the path of the laser beam is carried out.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 14, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Christian Roos, Hans Langrieger, Florian Oefele
  • Patent number: 9557619
    Abstract: Embodiments of the present disclosure relate to display devices and electronic devices incorporating a data line distribution segment between neighboring pixel electrodes. Specifically, embodiments of the present disclosure employ a uniformly distributed data line distribution segment coupled to a data line so as to cause a substantially uniform data line-to-pixel electrode capacitance with the neighboring pixel electrodes even when the data line is disposed closer to one of the neighboring pixel electrodes than the other.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: January 31, 2017
    Assignee: Apple Inc.
    Inventors: Young Bae Park, Cheng Chen, Shih Chang Chang, Zhibing Ge, John Z. Zhong
  • Patent number: 9469220
    Abstract: A vehicle seat and seat back adjustment mechanism are disclosed that provide for adjusting the angle of inclination of a seat back relative to a seat base and also permit easy entry to the area behind the seat by allowing the seat back to be released to move between an adjusted angle of inclination and a position in which the seat back is folded over the seat base. The adjustment mechanism includes at least one comfort tilt recliner mechanism and one easy entry recliner mechanism that are joined via a first interface and a second interface face each, respectively, located on the outer surfaces of the facing plates of the two mechanisms by a radial laser welding process, such that the mechanisms may be coaxially attached to the vehicle seat to permit the seat back to pivot about a single axis.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 18, 2016
    Assignee: Lear Corporation
    Inventors: Eckhard Nock, Johannes Barzen, Norbert Hertling
  • Patent number: 9452489
    Abstract: A machine and method for additive manufacturing is offered which can eliminate static electricity of a powdered material without using an inert gas to thereby prevent scattering of the material. The additive manufacturing machine (1) has a support stage (4), a first electron gun (8), and a second electron gun (9). The first electron gun (8) melts a given region of the powdered material (M1). The second electron gun (9) illuminates the surface of a given region formed by the powdered material spread tightly on the stage (4) with an electron beam (L2) that is tilted relative to the surface to eliminate static electricity of the powdered material (M1).
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: September 27, 2016
    Assignee: JEOL Ltd.
    Inventor: Kazuhiro Honda
  • Patent number: 9410842
    Abstract: A photoacoustic wave measurement device according to the present invention includes: an optical fiber that outputs pulsed light; an external spacer that is disposed between a pulsed-light output end of the optical fiber and a measurement object, and which is adapted to allow the pulsed light to pass therethrough; a piezoelectric element that receives a photoacoustic wave generated by the pulsed light from the measurement object and converts the photoacoustic wave into an electric signal; and a spacer that is disposed between the external spacer and the piezoelectric element, and which is adapted to allow the photoacoustic wave to pass therethrough. The piezoelectric element is farther from the measurement object than the pulsed-light output end. A part of the optical fiber is disposed within the spacer.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: August 9, 2016
    Assignee: ADVANTEST CORPORATION
    Inventor: Taiichiro Ida
  • Patent number: 9347770
    Abstract: A method for verifying a size of an energy beam spot, said method comprising the steps of providing a first beam spot having a predetermined size and power at a first position on a work piece, varying a focus and/or astigmatism lens setting for said first beam spot until max intensity for the beam spot is detected, comparing the detected settings of said focus lens and/or astigmatism lens for said maximum intensity of the beam spot with stored settings of said focus lens and/or astigmatism lens for the beam spot with said predetermined size and power, repeating step a-c for different predetermined beam powers, repeating step a-d for different positions on said work piece, wherein said beam spot size is verified if each detected settings of said focus lens and/or astigmatism lens are deviating less than a predetermined value from corresponding stored settings of said focus lens and/or astigmatism lens.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: May 24, 2016
    Assignee: Arcam AB
    Inventor: Anders Snis
  • Patent number: 9289842
    Abstract: A bonded structure of aluminum and copper is formed by bonding a copper workpiece and an aluminum workpiece together along a joint via an arc welding process. The copper workpiece has a first coating, having a lower melting point than copper, applied to at least a portion of it. The first coating allows the copper workpiece to be wetted and brazed, while the aluminum workpiece is melted and fused along the joint. The arc welding process involves the cyclic alternating of a first stage, in which an electric current is supplied to a welding wire as it is moved toward the workpieces, and a second stage, in which the electric current is reduced and the welding wire is moved away from the workpieces, to generate and detach a plurality of molten droplets along the joint. Each molten droplet is formed from the welding wire in the first stage.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: March 22, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Chih-Chang Chen, Corey Simone
  • Patent number: 9284848
    Abstract: A blade-disk unit for a turbine engine includes a disk and a plurality of blades which are integrally connected to the disk, a welding seam being disposed in the joining region between the blade and the disk, which welding seam is situated entirely either in the blade or in the disk.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: March 15, 2016
    Assignee: MTU AERO ENGINES GMBH
    Inventor: Karl-Hermann Richter
  • Patent number: 9242312
    Abstract: A surface of a workpiece (12) to be laser machined is protected by a surfactant film (11) form debris (15) produced during machining with a laser beam (14) by reducing adherence to the surface of debris produced by the laser machining. The surfactant film is preferably subsequently removed together with debris (151) deposited thereon.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: January 26, 2016
    Assignee: Electro Scientific Industries, Inc.
    Inventor: David Gillen
  • Patent number: 9188105
    Abstract: A driveshaft for an aircraft ram air turbine includes a substantially cylindrical elongate portion, a first end extending from the elongate portion, and a second end extending from the elongate portion opposite the first end. The first and second ends each include a substantially frusto-conical section having a curved generatrix, such that distal portions of each of the first and second ends have smaller outer diameters than an outer diameter of the elongate portion. The elongate portion provides relatively high lateral stiffness and the first and second ends provide relatively low torsional stiffness, such that the driveshaft has a lateral natural frequency higher than an operating range of the driveshaft and has a torsional natural frequency below the operating range of the driveshaft.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 17, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Stephen Michael Bortoli, Dustin L. Kaap
  • Patent number: 9174298
    Abstract: [Object] To provide a joining method for dissimilar metals which are magnesium alloy and steel and difficult to be metallurgically directly joined to each other while oxide film is present at a joining surface. [Solving Means] In order to join magnesium alloy material 1 and steel plate 2 to each other, a galvanized steel plate to which Zn—Al—Mg alloy plating (a third material) is applied is used as the steel plate 2. When joining is made, ternary eutectic melting of Al—Mg—Zn is caused, so that it is discharged together with oxide film 1f and impurities from the joining interface while Al—Mg intermetallic compound such as Al3Mg2 and Fe—Al intermetallic compound such as FeAl3 are formed, thereby joining the newly generated surfaces of the magnesium alloy material 1 and the steel plate 2 to each other through a compound layer 3 containing these intermetallic compounds.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: November 3, 2015
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Minoru Kasukawa, Shigeyuki Nakagawa, Kenji Miyamoto
  • Patent number: 9073144
    Abstract: A method for joining a first bar end-on to a second bar by means of electron beam welding at a welding point is provided. The method includes the following steps, aligning the two bars with each other along a longitudinal axis, applying a sleeve, which surrounds the welding point in the circumferential direction with respect to the longitudinal axis, welding at the welding point by means of electron beam welding, wherein an electron beam welding apparatus is made to pass along an advancing direction, along in relation to a surface of the sleeve and along the welding point, and removing the sleeve.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 7, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Martin Biesenbach
  • Patent number: 9044833
    Abstract: The invention relates to a rotor (1) of a turbomachine, in particular of an exhaust gas turbocharger, with a rotor wheel (2) which has a wheel back (3), and with a rotor shaft (4) which has an intermediate piece (5), via which the rotor shaft (4) is connected rigidly to the rotor wheel (2), the intermediate piece (5) being provided with a disk-shaped balancing plate (5A), the outside diameter (DA) of which is larger than the largest diameter (D4C) of the rotor shaft (4) and which is fixed to the wheel back (3) of the rotor wheel (2).
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 2, 2015
    Assignee: BorgWarner Inc.
    Inventor: Christian Holzschuh
  • Publication number: 20150144681
    Abstract: A method for making a tube is described in which a multi-layer billet is extruded to provide a tube having a wall comprising an inner layer metallurgically bonded to an outer layer.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 28, 2015
    Inventors: Richard C. Sutherlin, Brett J. Herb, Ronald A. Graham
  • Publication number: 20150104318
    Abstract: A turbine rotor as a turbine impeller made of a high-temperature-resistant metal alloy and a rotor shaft made of steel. The impeller hub and the rotor shaft end are connected together in a metallurgically bonded manner by way of a brazed connection. Between the end faces of the impeller hub and of the rotor shaft end, a brazing gap filled with brazing alloy is arranged concentrically with the rotation axis of the turbine rotor. A width of the soldering gap is previously determined by circularly peripheral removal of material on the end face of the impeller hub or the end face of the rotor shaft end, and the brazing connection is produced by an electron beam soldering process.
    Type: Application
    Filed: March 20, 2013
    Publication date: April 16, 2015
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Achim Koch, Timo Merenda, Philipp Mehne, Martin Thomas, Guenter Muench
  • Patent number: 9000324
    Abstract: A method of fabricating a load compressor scroll housing includes the steps of forging near net shape parts that are machined and subsequently welded together. The forged portions are machined to define specific features of the scroll housing along with the mating surfaces. An interface between top and bottom portions is defined within the volute chamber. The weld joint at the interface provides a finished surface within the volute chamber such that airflow is not adversely affected and additional machine process are not required within the volute chamber after formation of the weld joint.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: April 7, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Jeffrey L. Moore, Mark A. Fishburn, Jessica Skaar, Nagendra Narasimha Kedlaya, Donna Jane Reid
  • Publication number: 20150078905
    Abstract: A turbine rotor for an exhaust gas turbine has a turbine rotor wheel made of a highly heat-resistant metal alloy and a rotor shaft made of steel. A rotor wheel hub and a rotor shaft end are connected to each other in a metallurgical bond by way of a solder connection. The rotor shaft end and/or the rotor wheel hub is formed with a central recess, which acts as a thermal choke. A closing plug is arranged in the respective recess, forming a closed cavity with the recess and closing off the recess toward the respective end face. The solder connection is formed between the end faces of the rotor wheel hub and the rotor shaft, between the closing plug and the rotor wheel hub, and between the closing plug and the rotor shaft.
    Type: Application
    Filed: March 20, 2013
    Publication date: March 19, 2015
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Ulrike Albuzat, Günter Münch
  • Publication number: 20150043962
    Abstract: A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 12, 2015
    Inventors: Yasunobu Miyazaki, Yasuaki Naito, Kaoru Kawasaki, Takahiro Yoshinaga
  • Patent number: 8952292
    Abstract: A welding head is provided. The welding head includes a bracket and a plurality of blocks coupled to the bracket. Each of the plurality of blocks has a contact tip. The contact tips are adapted to receive an electrode. Further, at least one of the plurality of blocks is capable of variable positioning relative to the bracket.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: February 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Matthew J. Behmlander, Huijun Wang
  • Patent number: 8919633
    Abstract: According to one aspect of the invention, a method for assembling a turbine includes placing a middle layer between a first and second outer member, wherein the middle layer includes a non-continuous layer of material and the first and second outer members each include a member of continuous material and welding a primary joint between the middle layer, first outer member and second outer member, the primary joint extending through the first outer member, the middle layer and at least a portion of the second outer member. The method also includes welding a secondary joint between the middle layer and first outer member, the secondary joint extending through the first outer member and at least a portion of the middle layer.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: December 30, 2014
    Assignee: General Electric Company
    Inventors: Yan Cui, William Edward Adis, Srikanth Chandrudu Kottilingam, Dechao Lin, Michael Dennis Mack, Daniel Frederick Purdy
  • Publication number: 20140360452
    Abstract: A method for producing a hollow valve of an internal combustion engine may include providing a hollow valve stem, a valve cone, and a valve bottom; pushing the valve cone over the valve stem via a press fit, wherein the valve cone includes an outer surface transitioning to the valve stem to define a testing surface; and welding the valve cone to the valve stem via at least one of a laser beam and an electron beam, wherein the welding occurs such that no melting of the outer surface in the region of the testing surface of the valve cone occurs.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Peter Kroos, Christoph Luven, Alexander Mueller, Alexander Puck
  • Patent number: 8901454
    Abstract: In a method for controlling pulse arc welding where an arc is created between a wire and a base material, a pulse waveform different from the pulse waveform for steady-state welding is outputted when a predetermined time has passed since short-circuit welding control was started at arc start, and after a sufficiently large melt pool is formed, the pulse waveform for the steady-state welding is outputted. This reduces the generation of spatters after an arc is created and until the arc is stabilized.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 2, 2014
    Assignee: Panasonic Corporation
    Inventors: Akira Nakagawa, Atsuhiro Kawamoto, Junji Fujiwara, Masaru Kowa
  • Patent number: 8894721
    Abstract: A method for beam welding a multi-sheet work stack includes positioning a first sheet adjacent to a second sheet, and positioning a third sheet adjacent to the second sheet such that a single common welding interface is defined. An energy beam is directed onto the interface until a fusion weld forms along the interface. The third sheet may define a flange or a tab portion. The flange portion may be placed in direct contact with the first sheet along the interface, while the tab portion may be inserted into a slot of the second sheet to contact the first sheet at the interface. The beam may be a laser or ion beam. The lower melting temperature sheet may be positioned farther from the source of the energy beam than the other sheets. The welded assembly may be a battery module, with the sheets being an interconnect member and battery tabs.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: November 25, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Wayne W. Cai, Thomas B. Stoughton, Xiang Zhao
  • Publication number: 20140339204
    Abstract: An improved header assembly and corresponding port assembly comprising a tensioning member, wherein the tensioning member is isolated and separate from the weld portion and is adapted to place a threaded portion between the header assembly and port assembly in tension and maintain such tension, and thus relieve tension from the weld, before and after welding, thereby increasing the lifespan of the header and port assemblies.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: Adam Kane, Sergio Radossi
  • Publication number: 20140335145
    Abstract: The invention provides products of manufacture, e.g., biomaterials and implants, for cartilage maintenance and/or formation in-vivo, in-vitro, and ex-vivo, using nanotechnology, e.g., using nanotube, nanowire, nanopillar and/or nanodepots configured on surface structures of the products of manufacture.
    Type: Application
    Filed: July 27, 2014
    Publication date: November 13, 2014
    Inventors: Sungho JIN, Seunghan OH, Karla BRAMMER
  • Publication number: 20140315677
    Abstract: A compact planetary differential gear set includes first (130A) and second (130B) sun gears, a first set (200A) and a second set (200B) of planet gears (220), and a carrier (160) with a ring gear (190). Enmeshing gear pairs (210) are formed from one planet gear from each set. The first and second planet gear sets enmesh the first and second sun gears, respectively. The ring gear does not extend into an annular region containing the planet gears thereby allowing four or more gear pairs to compactly fit into the annular region. The carrier is a weldment and substantially encloses the sun gears and the planet gears permanently. The differential requires no fasteners or post-weld machining and may have a higher capacity, lower cost, smaller size, lower part number count, and/or lower amounts of material compared with conventional differentials. The differential is suited for motor vehicle applications.
    Type: Application
    Filed: September 4, 2012
    Publication date: October 23, 2014
    Applicant: EATON CORPORATION
    Inventor: Andrew N. Edler