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    Systems and methods for integrated welding of metal materials
    1.
    发明授权
    Systems and methods for integrated welding of metal materials 有权

    公开(公告)号：US10888950B2

    公开(公告)日：2021-01-12

    申请号：US16026829

    申请日：2018-07-03

    Applicant: Faraday&Future Inc.

    Inventor： Farid Haddadi ,  Antonio Mercado-Perez ,  Philip Antonio Reid Bethell

    IPC: B23K11/12 ,  B23K11/11 ,  B23K11/24 ,  B23K11/30

    Abstract: A method for welding multiple workpieces together includes applying a force to the multiple workpieces, generating ultrasonic vibration, transferring the ultrasonic vibration to the multiple workpieces to breakdown an oxide layer, generating an electric current, transmitting the electric current to heat up the workpieces, and synchronizing the ultrasonic and resistance heating operations. A welding system includes an ultrasonic vibration unit that generates an ultrasonic vibration and transfers the ultrasonic vibration to multiple workpieces to breakdown an oxide layer, a resistance heating unit that generates an electric current and transmits the electric current to heat up the workpieces, a workpiece mount that includes electrodes configured to receive the generated current and/or clamp the multiple workpieces during a welding process, and a controller configured to synchronize an operation of the ultrasonic vibration unit and an operation of a resistance heating unit.

    WELDING ELECTRODE WITH RADIAL-SERRATED WELD FACE AND METHOD OF FORMING AND REFORMING WELD FACE
    2.
    发明申请
    WELDING ELECTRODE WITH RADIAL-SERRATED WELD FACE AND METHOD OF FORMING AND REFORMING WELD FACE 审中-公开

    公开(公告)号：US20200246907A1

    公开(公告)日：2020-08-06

    申请号：US16652166

    申请日：2018-10-11

    Applicant: MAGNA INTERNATIONAL INC.

    Inventor： Oleg TERNOVSKY ,  Craig James VARLEY

    IPC: B23K11/30 ,  B23K11/18 ,  B23K11/12 ,  B21D53/00

    Abstract: A welding electrode for an electric resistance welding process. The welding electrode includes a body extending along a center axis and terminating axially at a weld face for contacting a work face. The weld face defines a center along the axis and defines an outer edge spaced radially from the center. A plurality of senates are defined along the weld face. Each of the serrates projects axially away from the weld face and extends radially from the center axis to the outer edge of the weld face. A higher density of the plurality of serrates is formed proximate to the center axis than proximate to the outer circumference of the weld face. Methods for using the welding electrode and forming the senates on the welding electrode are also provided.

    Welding apparatus
    3.
    发明授权
    Welding apparatus 失效
    焊接设备

    公开(公告)号：US3765589A

    公开(公告)日：1973-10-16

    申请号：US3765589D

    申请日：1971-10-18

    Applicant: WALRAVEN T ,  DEVINE J ,  MAROPIS N ,  ELMORE W

    Inventor： WALRAVEN T ,  DEVINE J ,  MAROPIS N ,  ELMORE W

    IPC: B23K11/12 ,  B23K20/10 ,  B23K1/06

    CPC classification number: B23K11/12 ,  B23K20/106

    Abstract: Apparatus and method are disclosed for welding metal members by means of vibratory energy. Reliability of such welding apparatus is improved by provision of an anvil designed for regulated response to excitation by an ultrasonically-powered sonotrode. The anvil is mounted in an assembly which contributes appropriate support, restraint and isolation.

    Abstract translation: 公开了通过振动能量焊接金属构件的装置和方法。 这种焊接装置的可靠性通过提供设计用于通过超声功率超声波发生器激发的调节响应的砧座来改善。 砧座安装在一个有助于适当支撑，限制和隔离的组件中。

    Method and apparatus for spot welding
    4.
    发明授权
    Method and apparatus for spot welding 失效
    点焊方法及装置

    公开(公告)号：US5541382A

    公开(公告)日：1996-07-30

    申请号：US248274

    申请日：1994-05-25

    Applicant: Glen A. Taylor ,  Samuel E. Arrington, Jr.

    Inventor： Glen A. Taylor ,  Samuel E. Arrington, Jr.

    IPC: B23K11/12 ,  B23K11/31

    CPC classification number: B23K11/31 ,  B23K11/12

    Abstract: A spot welding apparatus adapted particularly for joining aluminum workpieces utilizes a twisting or vibrating motion to break up oxides on the workpiece surface for improved welding and increased welding tip life. In one embodiment, a vibration inducing device is fixed to the electrode holder of a spot welding apparatus for vibrating the electrode tip during welding. In another embodiment, a camming mechanism rotates the electrode tip of the spot welding head in response to the spot welding head contacting the workpiece surface. The electrode tip rotates or twists in a limited arc after the tip contacts the workpiece to break up oxides on the workpiece surface. The electrode tip, upon removal from the workpiece surface, reverses its rotation for subsequent spot welding and to minimize the possibility of the electrode sticking to the workpiece.

    Abstract translation: 特别适用于连接铝工件的点焊装置利用扭转或振动运动来分解工件表面上的氧化物，以改善焊接并提高焊接寿命。 在一个实施例中，将振动诱发装置固定在点焊设备的电极座上，用于在焊接过程中使电极尖端振动。 在另一个实施例中，凸轮机构响应于点焊头接触工件表面而使点焊头的电极末端旋转。 在尖端与工件接触之后，电极尖端在有限的电弧中旋转或扭转，以破坏工件表面上的氧化物。 电极尖端在从工件表面移除时反转其旋转以便随后的点焊，并使电极粘附到工件的可能性最小化。

    Pulsed heat eutectic bonder
    5.
    发明授权
    Pulsed heat eutectic bonder 失效
    脉冲热保护粘结剂

    公开(公告)号：US3790738A

    公开(公告)日：1974-02-05

    申请号：US3790738D

    申请日：1972-05-30

    Applicant: UNITEK CORP

    Inventor： LAUB J ,  GRIFFITHS D

    IPC: B23K11/12 ,  B23K20/02 ,  B23K1/02

    CPC classification number: B23K20/023 ,  B23K11/12

    Abstract: A pulsed heat hybrid semiconductor die bonding apparatus utilizing a pair of heating electrodes which bracket a die collet and contact the substrate area immediately adjacent each side of the die or chip to be bonded. A heating pulse of a predetermined magnitude and duration produces localized substrate heating via a discharge of current to the metalization under the chip. A conductivity monitor connected to the electrodes indicates the quality of the electrical contact of the heating electrodes with the substrate. Simultaneous with the substrate heating current pulse, a low frequency, unidirectional mechanical scrubbing motion is applied to the arm holding the die collet. The arm is supported in the apparatus by means of a flexure type of mounting. The combination of heating current applied to the substrate in pulses with scrubbing action precisely controls the heating and eutectic bonding of the substrate and chip, preventing subsequent unbonding or heat damage to the semiconductor die. The bonding arm mechanism accepts quickly interchangeable, floating die collet tools.

    Abstract translation: 一种利用一对加热电极的脉冲热混合半导体管芯接合装置，该对加热电极支架一个管芯夹头，并与待接合的管芯或芯片的每一侧紧邻的衬底区域接触。 预定幅度和持续时间的加热脉冲通过电流放电到片下的金属化产生局部衬底加热。 连接到电极的电导率监测器指示加热电极与衬底的电接触的质量。 与基板加热电流脉冲同时，将低频单向机械擦洗运动施加到夹持夹具的臂上。 臂通过弯曲类型的安装被支撑在设备中。 以具有擦洗作用的脉冲施加到衬底的加热电流的组合精确地控制衬底和芯片的加热和共晶接合，防止随后对半导体管芯的未结合或热损伤。 接合臂机构接受快速可互换的浮动夹头工具。

    Spot welded joint and spot welding method
    9.
    发明授权
    Spot welded joint and spot welding method 有权

    公开(公告)号：US10646949B2

    公开(公告)日：2020-05-12

    申请号：US15032106

    申请日：2015-01-30

    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

    Inventor： Fuminori Watanabe ,  Yasunobu Miyazaki

    IPC: B23K11/11 ,  B23K11/16 ,  B23K11/12 ,  B23K101/00 ,  B23K103/04

    Abstract: The present invention has as its object to provide a spot welded joint and spot welding method which raise the fracture toughness of spot welded metal to raise the strength of the spot welded joint. In the present invention, there is provided a spot welding method comprising a melt zone forming step forming a melt zone by conduction and, after the melt zone forming step, a solidification step of running a current lower than the current run in the melt zone forming step so as to cause the melt zone to solidify, wherein, in the solidification step, electromagnetic vibration is applied to the melt zone, and a frequency fV of the electromagnetic vibration, a solidification speed νS when the melt zone solidifies, and an arm interval of dendrites λD when the melt zone solidifies satisfy 0.2≤νS/(λD·fV)≤4.0.

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