Methods Patents (Class 219/121.64)
  • Patent number: 11565482
    Abstract: An apparatus for quality assessment of a sealing section of a package for food products. The package includes at least a robustness layer and a plastic layer. The sealing section is formed by holding a first section and a second section of the package against each other while providing heat such that the plastic layer of the first and second section melt and the first and second section adhere to each other. The apparatus includes a sample holder arranged for fixating a sample including the sealing section of the package. At least part of the sample holder is transparent, a magnification device arranged on a first side of the sample holder, and an illumination device arranged on a second side of the sample holder. Light is provided to the magnification device through the sample holder The first and second side are opposite sides of the sample holder.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 31, 2023
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Hans Hallstadius, Magnus Råbe
  • Patent number: 11548096
    Abstract: A laser beam applying unit of a laser processing apparatus for processing a wafer includes a laser oscillator for emitting a pulsed laser beam having a wavelength transmittable through the wafer, a beam condenser for converging the pulsed laser beam emitted from the laser oscillator onto the wafer held on a chuck table, a beam splitter assembly disposed between the laser oscillator and the beam condenser, for splitting the pulsed laser beam emitted from the laser oscillator to form at least two converged spots on the wafer that are spaced from each other in X-axis directions, and a mask assembly disposed between the laser oscillator and the beam condenser, for reducing the width of the converged spots on the wafer in Y-axis directions to keep the converged spots on the wafer within the width of the projected dicing lines on the wafer.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 10, 2023
    Assignee: DISCO CORPORATION
    Inventor: Kenji Furuta
  • Patent number: 11548091
    Abstract: A method of forming an assembly includes providing a metallic first workpiece having base and a first layer disposed on the base and adhering a second layer onto the first layer. One of the first and second layers is formed of a zinc-based material formed of at least a majority of zinc, and the other of the first and second layers is formed of a metallic alloying material having a melting point higher than the melting point of the zinc-based material. Preferably, the first layer is formed of the zinc-based material, and the second layer is formed of the metallic alloying material with the higher melting point. A metallic second workpiece is disposed in contact with the second layer. A welding operation is performed to join the first workpiece to the second workpiece. A welded assembly is also provided.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Pei-chung Wang, Michael J. Karagoulis, Spyros P. Mellas, Zhenke Teng
  • Patent number: 11534860
    Abstract: A method for identifying joining positions of workpieces includes capturing images of a joint by a camera, determining measurement data for the joining positions associated with a course of the joint from the images of the joint, determining a mathematical model of the joint course from a part of the measurement data, providing a curve based on the mathematical model for positioning a welding laser during a laser welding process along the curve.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 27, 2022
    Assignee: PRECITEC GMBH & CO. KG
    Inventors: Joachim Schwarz, Rüdiger Moser, David Blázquez-sánchez
  • Patent number: 11537081
    Abstract: A component of external parts for a timepiece, the component including a first silicon-based part and a second metal-based part, where one surface of the first part is welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts to each other. A method for fabrication of a component of external parts for a timepiece, by forming a first silicon-based part and a second metal-based part, mounting a surface of the first part on a surface of the second part, and welding, using laser-type electromagnetic radiation, the surface of the first part mounted on the surface of the second part, in order to secure the parts to each other.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: December 27, 2022
    Assignee: The Swatch Group Research and Development Ltd
    Inventor: Jean-Luc Bazin
  • Patent number: 11534864
    Abstract: A method for connecting two components with the aid of a laser weld seam. The two components are situated one above the other in a joining area. The first component is pressed in the direction of the second component with the aid of a clamping device. A laser beam impacts the first component on the side facing away from the second component and at least indirectly fusing material of the two components.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: December 27, 2022
    Inventors: Andreas Heider, Reiner Ramsayer
  • Patent number: 11536233
    Abstract: A fuel system includes a low-pressure fuel delivery unit and a high-pressure fuel delivery unit which has a low-pressure region and a high-pressure region such that the low-pressure region supplies fuel to the high-pressure region which supplies the fuel to a plurality of high-pressure fuel injectors. A low-pressure fuel rail supplies fuel to low-pressure fuel injectors. A low-pressure fuel injector line is connected at a first end directly to the high-pressure fuel delivery unit and receives fuel from the low-pressure region and is connected at a second end directly to the low-pressure fuel rail, thereby providing fluid communication from the low-pressure region to the low-pressure fuel rail. A device is located between the low-pressure region and the low-pressure fuel rail and reduces fuel pressure pulsations.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: December 27, 2022
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Timothy D. Spegar, Joseph G. Spakowski
  • Patent number: 11524361
    Abstract: A method for laser keyhole welding is disclosed to weld two pieces together made of a metal alloy. The method independently adjusts power in a focused center beam and power in a concentric focused annular beam. At the termination of a weld, the power of the annular beam is reduced, motion of the focused beams is stopped, the power of the center beam is increased, and the power of both beams is initially ramped down rapidly and then ramped down slowly. Increasing the power of the center beam equalizes the temperature of both pieces prior to solidification and cooling at the termination of the weld. An additional pulse of power may be applied to prevent the formation of defects or to erase any defects.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: December 13, 2022
    Assignee: Coherent, Inc.
    Inventor: Ryan Brescoe
  • Patent number: 11524458
    Abstract: The present disclosure relates to an apparatus for additively manufacturing a product in a layer-by-layer sequence, wherein the product is formed using powder particles deposited on an interface layer of a substrate. A laser generates first and second beam components. The second beam component has a higher power level and a shorter duration than the first beam component. A mask creates a 2D optical pattern in which only select portions of the second beam components can irradiate the powder particles. The first beam component heats the powder particles close to a melting point, where the particles experience surface tension forces relative to the interface layer. While the particles are heated, the second beam component further heats the particles and also melts the interface layer before the surface tension forces can act on and distort the particles, enabling the particles and the interface layer are able to bond together.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: December 13, 2022
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: James A. DeMuth, Andrew J. Bayramian, Eric B. Duoss, Joshua D. Kuntz, Christopher M. Spadaccini
  • Patent number: 11522243
    Abstract: A method of manufacturing a micro-battery is provided. The method includes forming a micro-battery device by forming a first metal anode via and a first metal cathode via in a first substrate, forming a first metal layer on a bottom side of the first substrate, forming a first battery element on a top side of the substrate, forming an encapsulation layer around the first battery element, forming trenches through the encapsulation layer and the first substrate on different sides of the first battery element, and forming a metal sealing layer in the trenches to cover at least a plurality of sidewall surfaces of the first battery element. The metal sealing layer is electrically connected to the battery element through the first metal layer and the first metal cathode via.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: December 6, 2022
    Assignee: International Business Machines Corporation
    Inventors: Qianwen Chen, Jae-Woong Nah, Bing Dang, Leanna Pancoast, John Knickerbocker
  • Patent number: 11502380
    Abstract: A rechargeable battery is produced by welding a metal foil to a contact element to make electrical contact with an electrode of the rechargeable battery. An edge region of the metal foil is brought into contact with a first surface of the contact element and welded to the contact element by applying a laser beam to a second surface of the contact element. The second surface being averted from (opposite to) the first surface of the contact element. The metal foil and further planar constituents of the rechargeable battery are wound to provide the rechargeable battery with an at least essentially cylindrical design. The contact element-is oriented at right angles to the metal foil.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: November 15, 2022
    Assignee: Monbat New Power GmbH
    Inventor: Michael Deutmeyer
  • Patent number: 11498143
    Abstract: The present invention provides a lap fillet arc welding joint including a first metal sheet, a second metal sheet, and a weld bead. A region of the first metal sheet on one end side is bent. In a first direction, a position of a tip end of the bent region of the first metal sheet overlaps a region of the second metal sheet on one end side. In a second direction, an amount of deviation between a central axis of a region connected to the bent region of the first metal sheet and a central axis of the region of the second metal sheet on one end side is ½ times or less of average sheet thicknesses of the first metal sheet and the second metal sheet. A joint portion length is two times or more of the sheet thickness of the second metal sheet.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: November 15, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Shinji Kodama, Yoshinari Ishida, Kazuki Matsuda
  • Patent number: 11491579
    Abstract: This invention provides a laser welding method in which a state where the irradiation energy density becomes excessively high by a plurality of times of irradiation with laser is not caused and a defect, such as a hole, does not occur in a workpiece. In order to achieve the object, a laser welding method for welding a plurality of workpieces by irradiating the workpieces in a stacked state with a laser beam is characterized in that, when the laser beam is reciprocatingly emitted along a fixed welding line, the irradiation positions of a start end A and a termination end A? of the irradiation are shifted away from each other so that the irradiation energy can be dispersed. Moreover, when the laser beam is emitted a plurality of times in the same direction along the fixed welding line, the irradiation positions of the start ends or/and the termination ends of the irradiation are shifted away from each other so that the irradiation energy can be dispersed.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: November 8, 2022
    Assignee: NOK CORPORATION
    Inventor: Toshihiro Shimazoe
  • Patent number: 11491577
    Abstract: A method for establishing a weld joint comprises the step of projecting an energy beam such as a laser beam (2) onto an interface area (103) between two parts (101, 102) to be joined. The beam (2) is projected onto the interface area (103) so as to produce a primary spot on the interface area (103), and the beam (2) is repetitively scanned in two dimensions in accordance with a scanning pattern so as to establish an effective spot (21) on the object, the effective spot (21) having a two-dimensional energy distribution. The effective spot (21) is displaced along a track (104) over the interface area (103) so as to progressively melt mating portions of the first part (101) and the second part (102) so as to form the weld joint (105). The effective spot (21) can feature an asymmetric energy distribution.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 8, 2022
    Assignee: ETXE-TAR, S.A.
    Inventor: José Juan Gabilondo Peñalba
  • Patent number: 11491589
    Abstract: The invention relates to a laser brazing system, comprising a braze tool having a laser configured to emit a laser beam along a radiation path, and a braze wire tool being configured to guide a braze wire along a wire path intersecting the laser beam. The system comprises a jig comprising a first alignment surface and a first blocking surface, wherein the first alignment surface is configured to be in contact with the braze wire while the first blocking surface blocks at least a first part of the emitted laser beam, and a detector arranged in the radiation path and configured to detect the emitted light of the laser beam passing the jig.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: November 8, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Fredrik Ragnarsson
  • Patent number: 11476525
    Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly which is charged with an electric current and discharged; a casing which accommodates therein the electrode assembly; a cap plate which is coupled to an opening of the casing; and an electrode terminal which is electrically connected to the electrode assembly and installed in a terminal hole of the cap plate, the electrode terminal including: a plate terminal which is disposed outside the cap plate and has a coupling hole; and a rivet terminal which is installed in the terminal hole and coupled to the coupling hole, and the plate terminal and the rivet terminal include torque resistance increasing portions which are formed at a coupling interface between the coupling hole and the rivet terminal and increase torque resistive force of the plate terminal with respect to a z-axis of the rivet terminal.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 18, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hyunsoo Lee
  • Patent number: 11471975
    Abstract: Laser welding methods include focusing laser radiation onto a first metal sheet disposed on a metal part, optionally with one or more intervening metal sheets therebetween. The laser radiation is steered to trace at least one spiral path to spot-weld together the metal parts. The laser radiation includes a center beam and an annular beam to maintain a stable keyhole. One method is tailored to weld aluminum parts, e.g., with high gas content and/or dissimilar compositions, and the laser radiation traces first an outward spiral path and then an inward spiral path. The center beam is pulsed during one segment of the inward spiral path. Another method is tailored to weld steel or copper parts having a coating at an interface therebetween, and the laser radiation traces an inward spiral path. The interface may be a zero-gap interface, or a non-zero gap may exist.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 18, 2022
    Assignee: Corelase Oy
    Inventors: Matti Närhi, Henri Pajukoski
  • Patent number: 11465239
    Abstract: A manufacturing method for a joint body having a first metal member and a second metal member joined together by causing a laser oscillation system to irradiate a surface of the second metal member placed on the first metal member with laser light to form a joint portion including a welded portion where the first metal member and the second metal member are joined together includes continuously supplying the second metal member while pressing the second metal member against the first metal member, the second metal member being a hoop material, and causing the laser oscillation system to emit the laser light.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 11, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Kenichi Watanabe, Takayuki Kimura, Liang Chen, Masao Hadano, Reiichi Suzuki
  • Patent number: 11458566
    Abstract: Systems, methods and apparatuses are used for monitoring material processing using imaging signal density calculated for an imaging beam directed to a workpiece or processing region, for example, during inline coherent imaging (ICI). The imaging signal density may be used, for example, to monitor laser and e-beam welding processes such as full or partial penetration welding. In some examples, the imaging signal density is indicative of weld penetration as a result of reflections from a keyhole floor and/or from a subsurface structure beneath the keyhole. The monitoring may include, for example, automated pass/fail or quality assessment of the welding or material processing or parts produced thereby. The imaging signal density may also be used to control the welding or material processing, for example, using imaging signal density data as feedback. The imaging signal density may be used alone or together with other measurements or metrics, such as distance or depth measurements.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 4, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Christopher M. Galbraith, Jordan Kanko, Paul J. L. Webster, Cole Van Vlack, Genevieve Elizabeth Hayes
  • Patent number: 11458568
    Abstract: According to an embodiment of the invention, a laser processing method includes a first irradiation process and a second irradiation process. In the first irradiation process, a first laser light is irradiated on a first region of a processing object including a metal. A first output value of the first laser light is 3000 W or more. In the second irradiation process, a second laser light is irradiated on the first region. A second output value of the second laser light is not less than 60% and not more than 70% of the first output value.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: October 4, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuo Sakai, Yasutomo Shiomi
  • Patent number: 11453099
    Abstract: Some implementations of a retaining ring has an inner surface having a first portion formed of multiple planar facets and a second portion that adjoins the first portion along a boundary and includes a frustoconical surface that is sloped downwardly from outside in. Some implementations of the retaining ring have a crenellated or serpentine inner surface, and/or an inner surface with alternating region of different surface properties or different tilt angles.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 27, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Steven Mark Reedy, Simon Yavelberg, Jeonghoon Oh, Steven M. Zuniga, Andrew J. Nagengast, Samuel Chu-Chiang Hsu, Gautam Shashank Dandavate
  • Patent number: 11446764
    Abstract: A method for laser keyhole welding a stack of metal foils to a metal tab is disclosed. The method independently adjusts power in a focused center beam and power in a focused annular beam to form a weld through all the foils and the tab. The annular beam provides sufficient power to heat the metal to about melting temperature, widen a mouth of a keyhole, and stabilize a melt pool. The center beam provides sufficient additional power to form the keyhole. The power of the annular beam is sustained for a longer time than the power of the center beam. A plurality of such welds is formed to provide mechanical strength and electrical conductivity.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 20, 2022
    Assignee: Corelase Oy
    Inventors: Matti Närhi, Henri Pajukoski
  • Patent number: 11389901
    Abstract: A pair of separators is overlapped and placed on a base jig and thereby positioned with each other. Respective through-holes thereof are positioned to the position of a pin hole provided in the base jig. When a main jig is pressed against the base jig to clamp the pair of separators, and a pin of a sub-jig is inserted into the pin hole to clamp the pair of separators by a head, an annular light guiding path is formed by a gap generated between an opening provided in the main jig and the head of the sub-jig, and hence a laser welding position which surrounds the through-holes is exposed. The surrounding of each through-hole is seamlessly laser-welded when the laser welding position is irradiated with a laser beam.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: July 19, 2022
    Inventors: Toshihiro Shimazoe, Kento Nagamatsu, Hiroyuki Higashi
  • Patent number: 11380509
    Abstract: Systems and methods are provided for improving thermal management strategies of a cathode assembly of an x-ray tube. In one embodiment, an x-ray tube comprises an anode assembly and a cathode assembly, wherein the cathode assembly includes one or more elements that include an internal porous section for controlling a flow of heat within the cathode assembly during operation of the x-ray tube. In this way, heat conduction to temperature sensitive aspects of the cathode assembly may be reduced, while enabling sufficient heat transfer to other parts of the cathode assembly to minimize deformation.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: July 5, 2022
    Assignee: GE Precision Healthcare LLC
    Inventors: Kevin Kruse, Thomas Murray
  • Patent number: 11371114
    Abstract: The present disclosure relates to methods for forming a golf club head assembly comprising a golf club head body and a high strength faceplate. The high strength faceplate can be heat treated. After welding the faceplate to the club head body, vibrational waves can be used to relive stress in the weld heat affected zones of the golf club body and faceplate.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: June 28, 2022
    Assignee: Karsten Manufacturing Corporation
    Inventors: Matthew W. Simone, Travis D. Milleman, Martin R. Jertson
  • Patent number: 11358238
    Abstract: A method for laser welding the end faces of joints of two connecting flanges, which are held against each other, of two connecting partners made from a steel material, of which at least one is provided with a metallic coating with an evaporation temperature that is below the melting temperature of the steel material. The method is carried out such that, for the process of laser welding, the connecting flanges of the two connecting partners are held against each other enclosing an angle that opens pointing in a direction from the joint side on which the laser is applied, as a result of which a degassing gap, which increases in the direction of heat introduction, is provided between the connecting flanges, through which degassing gap evaporation products of the coating material resulting from the introduction of heat are carried off.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: June 14, 2022
    Assignee: KIRCHHOFF AUTOMOTIVE DEUTSCHLAND GMBH
    Inventors: Jan Stuhrmann, Christian Dahmen
  • Patent number: 11351629
    Abstract: The invention relates to a method for forming a laser-welded connection, in which two parts to be joined (11; 11a, 12; 12a) are connected to one another under the effect of a laser beam (1) in a joining region (30; 30a) to form a weld (2), wherein one part to be joined (11; 11a) consists of a material transparent to laser radiation and the other part to be joined (12; 12a) consists of a material absorbent to laser radiation, and wherein the two parts to be joined (11; 11a, 12; 12a) form a receptacle (25; 25a; 25b) for a component (13; 13a; 13b; 14) separate from the parts to be joined (11; 11a, 12; 12a).
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 7, 2022
    Assignee: Robert Bosch GmbH
    Inventor: Markus Faiss
  • Patent number: 11351633
    Abstract: The invention concerns an apparatus and a method for laser processing. There is provided at least one first laser beam from at least one first optical feed fiber connected to at least one first laser device and at least one second laser beam from at least one second optical feed fiber connected to at least one second laser device. Said first and second laser beams are combined in a multi-core optical fiber. Said first core of said multi-core optical fiber has a circular cross-section, and said second core has an annular shape concentric to said first core. A composite laser beam comprising first and second output beams is directed from said multi-core optical fiber to a workpiece with overlapping elements to be welded.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 7, 2022
    Assignee: CORELASE OY
    Inventor: Jarno Kangastupa
  • Patent number: 11331752
    Abstract: Laser welding of a first metal substrate having a first planar surface and a second planar surface disposed opposite the first planar surface to a second metal substrate is performed by placing an end face of the second metal substrate proximate to the first planar surface. An input laser beam from a fiber laser is generated, and a beam delivery system is provided that is configured to receive the input laser beam and generate an output laser beam having a beam spot that moves in a predetermined pattern along a first and a second axes to irradiate a target area on the second planar surface such that the target area is positioned over an intersection region of the first planar surface where the end face is positioned proximate to the first planar surface.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 17, 2022
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Iurii Markushov, Nikolay Grezev, Maksim Murzakov
  • Patent number: 11325322
    Abstract: A process for continuous welding of a sheet of plastic material for manufacturing flexible packages, comprising a step of positioning the sheet relative to the welding device, putting ends of the sheet into contact, forming a weld by heating, pressing and cooling the ends of the sheet that are in contact, acquiring a primary temporal signal with a sensor, the primary temporal signal proportional to a thickness of the weld, transforming the primary temporal signal into a primary frequency signal and defining a low-frequency spectrum, a medium-frequency spectrum, and a high-frequency spectrum from the primary frequency signal, reconstructing a secondary low-frequency signal from the low-frequency spectrum, and determining the thickness of the weld based on the secondary low-frequency signal.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 10, 2022
    Assignee: AISAPACK HOLDING SA
    Inventors: Jacques Thomasset, Yan Gex-Collet, Gaël Bussien, François Fleuret, Yann Lepoittevin, Florent Monay
  • Patent number: 11260471
    Abstract: A method for monitoring a joining seam, in particular during joining by a laser beam, wherein in the processing direction before a processing point a joining site is measured in order to detect the position and geometry thereof, at least one position of a joining seam is determined from the position of the joining point, and in the processing direction after the processing point the joining seam is measured in order to detect the geometry thereof at the determined position. A device is also provided for carrying out said method and to a laser processing head equipped with such a device.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: March 1, 2022
    Assignee: PRECITEC GMBH & CO. KG
    Inventors: Joachim Schwarz, Stefan Birmanns
  • Patent number: 11251488
    Abstract: To provide a highly reliable battery pack having excellent manufacturability, a battery pack according to the present invention includes a stack of a plurality of battery cells 100 that each include a positive electrode lead tab and a negative electrode lead tab led out of a laminate film casing in a same direction, a coupling assisting member 300 that assists in electrically connecting adjoining battery cells 100, and a reinforcing member 200 interposed between the stacked battery cells 100. The reinforcing member 200 includes a protrusion 240 protruding in the same direction as that in which the positive electrode lead tabs and the negative electrode lead tabs of the battery cells 100 are led out. The coupling assisting member 300 includes a guide portion 340 that engages with the protrusion 240 and guides the protrusion 240 in combining the coupling assisting member 300 and the reinforcing member 200.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 15, 2022
    Assignee: Envision AESC Japan Ltd.
    Inventor: Toru Suzuki
  • Patent number: 11247284
    Abstract: A method for producing at least one hollow valve for gas exchange may include introducing a bore into a valve shaft and into a valve head to form the at least one hollow valve, measuring a depth of the bore, washing the at least one hollow valve at least once, providing the at least one hollow valve in a retaining device, orienting the retaining device together with the at least one hollow valve with respect to an associated electrode, moving the associated electrode in relation to the at least one hollow valve, inserting the associated electrode into the bore of the at least one hollow valve, enlarging the bore in a region of the valve head by electromechanical machining processes, removing the associated electrode from the at least one hollow valve, rinsing and/or preserving the at least one hollow valve, and measuring a wall thickness of a valve bottom.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 15, 2022
    Inventors: Peter Kroos, Christoph Luven
  • Patent number: 11235422
    Abstract: A method for joining together metal workpiece (12,14 or 12,150, 14) includes forming a laser weld joint (66) in a workpiece stack-up (10) that fusion welds two or more overlapping metal workpiece (12,14 or 12,150 or 14) together. The laser weld joint (66) has an initial top surface (76). Once the laser weld joint (66) is formed, the method calls for impinging the laser weld joint (66) with a laser beam (24) and moving the laser beam (24) along the initial joint (66) including the initial top surface (76). The laser beam (24) is eventually removed from the laser weld joint (66) to allow the melted upper portion (78) of the joint (66) to resolidify and provide the laser weld joint (66) with a modified top surface (84) that is smoother than the initial top surface (76). By providing the laser weld joint with a smoother modified top surface, residual stress concentration points are removed and the laser weld joint is less liable to damage seal strips.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: February 1, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yu Pan, David Yang, Wu Tao, Paolo Novelletto
  • Patent number: 11229975
    Abstract: Provided is a butt laser-welding method for a metallic member in which a laser beam is scanned so as to repeatedly cross butting surfaces of metallic members to weld the metallic members to each other. When the laser beam is scanned so as to cross the butting surfaces, the closer the laser beam comes to the butting surfaces, the more an irradiation energy density of the laser beam is increased. The bottom surfaces of the molten pools formed on the metallic members are inclined so as to descend toward the butting surfaces.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 25, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masanori Kokume, Shinichi Washizu, Yosuke Tateya, Daisuke Noritake, Yuki Kawashita, Jun Ikarashi
  • Patent number: 11229976
    Abstract: Partial welding of partially joining together two metal plates by melting at least one area inside a joining region of the metal plates is performed. After a lapse of a predetermined time from completion of the partial welding, main welding of joining together the metal plates by melting the joining region entirely is performed.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: January 25, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Hioki, Atsushi Kawakita, Shuhei Ogura, Ryosuke Kawai, Takashi Goto, Kazuho Takishita
  • Patent number: 11225990
    Abstract: A welding method includes overlapping a thin metal plate with a base material, and setting an annular welding schedule line on a welding schedule portion of the thin metal plate; forming a welding line such that a continuous irradiation with a laser light from a fiber laser is performed while moving the laser light along the welding schedule line, and while vibrating the laser light across the welding schedule line; and setting a length of the welding line such that an entire inside of the welding schedule line is welded.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: January 18, 2022
    Assignee: NIPPON MEKTRON, LTD.
    Inventors: Hiroshi Miyashiro, Yoichi Suruga, Shuhei Koyano
  • Patent number: 11220736
    Abstract: A deposition mask includes a first surface facing to the deposition target substrate, and a second surface opposite to the first surface. The deposition mask includes: an effective area in which a plurality of through holes are formed and a longitudinal direction in which one or more of the effective areas are arranged along the longitudinal direction. At least in a central area of the longitudinal direction, the deposition mask is warped to be convex on the first surface in a cross section orthogonal to the longitudinal direction.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: January 11, 2022
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Chikao Ikenaga
  • Patent number: 11219970
    Abstract: As first-time laser irradiation is performed on a workpiece, an initial nugget is formed. By emitting a laser beam for the second time at the initial nugget, a diameter of a back-side nugget portion is increased. A nugget includes a front-side nugget portion formed in a first plate, the back-side nugget portion formed in a second plate, and an annular flat surface portion. The flat surface portion is along a boundary portion between the first plate and the second plate. In a thicknesswise cross section of the second plate, a tilt angle of a peripheral surface of the back-side nugget portion is increased as a thicknesswise position of the peripheral surface approximates to a rear face of the second plate.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 11, 2022
    Assignee: NHK SPRING CO., LTD.
    Inventor: Naoki Tanaka
  • Patent number: 11213915
    Abstract: Provided is a welding method that can enhance joining quality between an upper plate and a lower plate. One aspect of the present disclosure is a joining method including joining the upper plate to the lower plate that is overlapped with the upper plate by applying energy to a top surface of the upper plate to thereby melt the upper plate and the lower plate together. A joining path designed to apply the energy to the top surface of the upper plate crosses an axis along a joining-travel direction and includes a turn-point. An amount of the energy includes a first energy applied in the vicinity of the turn-point and a second energy amount applied in an area other than the vicinity of the turn-point. The first energy amount is smaller than the second energy amount.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 4, 2022
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Toru Kobayashi, Koji Yamaguchi
  • Patent number: 11213918
    Abstract: A weld is formed in a workpiece such as a pipeline by first activating a melting device, such as a laser, to form a molten weld pool in the workpiece and then activating a welding device, such as a GMAW torch, to initiate a weld in the weld pool. The weld therefore incorporates the weld pool homogeneously. Relative movement between the activated welding device and the workpiece continues and completes the weld while the melting device remains deactivated.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: January 4, 2022
    Assignee: Acergy France SAS
    Inventor: Kouassi Gnamien Cesar-Auguste Atin
  • Patent number: 11203086
    Abstract: A laser welding method includes a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member in the in-plane direction fixed, processing is performed from the front surface of the first metal member to form on the back surface, a protrusion that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: December 21, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Keisuke Kinoshita, Kazuhiko Kagiya, Mitsuhiro Hasunuma, Shintaro Nonaka
  • Patent number: 11203084
    Abstract: Laser processing systems and methods image a multiple core array to a work surface in a multiple processing beam array. An optical system separates processing beams and converges the beams toward the work surface and focuses each beam of the array at or near the work surface. A central axis with access for filler material flow to the work surface is provided. The processing beam array and central filler material feed provide omni-directional additive laser processing capability.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: December 21, 2021
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Mustafa Coskun, Felix Stukalin, Jonathan S. Ehrmann
  • Patent number: 11203085
    Abstract: A device and associated method for joining, via a laser welder, a first workpiece to a second workpiece is described. This includes arranging the first and second workpieces in a stack, including overlapping a portion of the first workpiece with a portion of the second workpiece. The laser welder generates a first laser beam and coincidentally controls the laser welder to traverse a desired weld path that is disposed on the top surface of the first workpiece. The laser devices generates a second laser beam and coincidentally controls the laser welder to traverse the desired weld path. Generating, via the laser welder, the first laser beam includes operating the laser welder at a pulsed operation and at a first power level. Generating, via the laser welder, the second laser beam includes operating the laser welder at a continuous operation and at a second power level.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: December 21, 2021
    Assignee: GM Global Technology Operations LLC
    Inventor: Wu Tao
  • Patent number: 11185947
    Abstract: A welding structure for a metal member includes a first member containing a metal member, a second member containing a metal member, a first solidifying portion, a second solidifying portion, and a third solidifying portion. The first solidifying portion is present from a first surface to a second surface of the first member. The second solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion is shorter than the second solidifying portion. The second solidifying portion and the third solidifying portion are separated from each other in the second member.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Seiji Kumazawa, Takayuki Ashida
  • Patent number: 11179793
    Abstract: A control application implements computer vision techniques to cause a positioning robot and a welding robot to perform fabrication operations. The control application causes the positioning robot to place elements of a structure at certain positions based on real-time visual feedback captured by the positioning robot. The control application also causes the welding robot to weld those elements into place based on real-time visual feedback captured by the welding robot. By analyzing the real-time visual feedback captured by both robots, the control application adjusts the positioning and welding operations in real time.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 23, 2021
    Assignee: AUTODESK, INC.
    Inventors: Evan Atherton, David Thomasson, Heather Kerrick, Hui Li
  • Patent number: 11177144
    Abstract: Embodiments of the present disclosure provide a thermal process chamber that includes a substrate support, a first plurality of heating elements disposed over or below the substrate support, and a spot heating module disposed over the substrate support. The spot heating module is utilized to provide local heating of regions on a substrate disposed on the substrate support during processing. Localized heating of the substrate alters temperature profile. The shape of the beam spot produced by the spot heating module can be modified without making changes to the optics of the spot heating module.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: November 16, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Shu-Kwan Lau, Zhiyuan Ye, Zuoming Zhu, Koji Nakanishi, Toshiyuki Nakagawa, Nyi O. Myo, Schubert S. Chu
  • Patent number: 11168378
    Abstract: A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, tw/t0 is appropriately controlled where tw is a thickness of a thinnest portion in the joining portion and t0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: November 9, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Yasuaki Okita, Rinsei Ikeda, Seiji Nakajima, Koichi Nakagawa
  • Patent number: 11148226
    Abstract: A method of laser spot welding a workpiece stack-up (10) that includes at least two overlapping steel workpieces (12, 14, 150) is disclosed. The method includes directing a plurality of laser beams (24, 24?, 24?) at the top surface (20) of the workpiece stack-up to create a molten steel weld pool (92) that penetrates into the stack-up. The molten steel weld pool is then grown to penetrate further into the stack-up by increasing an overall combined irradiance of the laser beams while reducing the total projected sectional area (88) of the laser beams at a plane of the top surface of the workpiece stack-up. Increasing the overall combined irradiance of the laser beams may be accomplished by moving the focal points (66, 66?, 66?) of the laser beams closer to the top surface or by reducing the mean angle of incidence (86) of the laser beams so as to reduce the eccentricity of the individual projected sectional areas of the laser beams.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 19, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David Yang, Wu Tao
  • Patent number: 11139592
    Abstract: A terminal connecting method includes setting a conductor having a plurality of strands on an upper surface of a bottom portion of an electric wire crimping part of a terminal, caulking the conductor in a manner to cover the conductor, thereby crimping the conductor by a caulking portion extended from the bottom portion, and welding the plurality of strands together in a strands exposed portion of the conductor exposed from tip end edges of the caulking portion by friction between the plurality of strands and a friction tool, after caulking and crimping.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: October 5, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Shinya Warashina, Tomohiro Kako