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    SELF-ADJUSTING CLAD WIRE FOR WELDING APPLICATIONS
    12.
    发明申请
    SELF-ADJUSTING CLAD WIRE FOR WELDING APPLICATIONS 审中-公开
    自适应焊接线用于焊接应用

    公开(公告)号：US20140138367A1

    公开(公告)日：2014-05-22

    申请号：US14076648

    申请日：2013-11-11

    Applicant: GM Global Technology Operations LLC

    Inventor： Jing Zhang ,  Pei-Chung Wang ,  David Yang

    IPC: B23K35/02

    CPC classification number: B23K35/0261 ,  B23K35/0255 ,  B23K35/0266 ,  B23K35/30 ,  B23K35/302 ,  B23K35/3033 ,  B23K35/3053 ,  B23K35/3066 ,  B23K35/3073 ,  C22C9/01 ,  C22C9/02 ,  C22C9/04 ,  C22C19/03 ,  C22C38/04 ,  C22C38/08 ,  C22F1/08 ,  C22F1/10

    Abstract: Disclosed are self-adjusting wires, methods of making these self-adjusting wires, and thermal joining processes (such as gas metal arc welding or laser brazing) and other processes using these self-adjusting wires. The wires have an outer layer of a metal or metal alloy suitable as a joining material in the joining process and a core of a shape-memory alloy. The outer layer may be continuous about the exterior of the core or discontinuous such as a longitudinal strip or strips. The shape-memory alloy of the self-adjusting wire is “trained” to a straight-wire shape in its austenite phase. In using the self-adjusting wire in a process, a bent end of the self-adjusting wire is straightened by heating the self-adjusting wire above the austenite phase transition temperature of the shape-memory alloy.

    Abstract translation: 公开了自调整线，制造这些自调整线的方法，以及使用这些自调节线的热接合工艺（例如气体金属电弧焊或激光钎焊）等工艺。 电线具有适合作为接合过程中的接合材料的金属或金属合金的外层和形状记忆合金的芯。 外层可以围绕芯的外部连续或不连续，例如纵向条或条。 自调整丝的形状记忆合金在其奥氏体相中被“训练成”为直线形状。 在使用自调整线的过程中，通过将自调整线加热到形状记忆合金的奥氏体相变温度以上，自调整线的弯曲端部被拉直。

    Fastening assembly
    14.
    发明授权
    Fastening assembly 有权

    公开(公告)号：US11047417B2

    公开(公告)日：2021-06-29

    申请号：US16157602

    申请日：2018-10-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Pei-Chung Wang ,  Bradley J. Blaski ,  Steven Cipriano ,  Mark O. Vann

    IPC: F16B33/00 ,  F16B25/10 ,  C23F13/00 ,  F16B39/282 ,  F16B19/10

    Abstract: A fastening assembly includes a panel, a fastener and a primary anode insert. The panel defines an aperture and the fastener includes a shaft portion disposed within the aperture. The primary anode insert may be disposed adjacent to a reaction region of the fastener. Alternatively, the fastening assembly may include a fastener and a primary anode insert. The fastener includes a shaft portion which is configured to be disposed within at least two aligned component apertures. The primary anode insert may be also be disposed adjacent to a reaction region of the fastener.

    Resistance spot welding method
    15.
    发明授权
    Resistance spot welding method 有权

    公开(公告)号：US10189113B2

    公开(公告)日：2019-01-29

    申请号：US14690888

    申请日：2015-04-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Guoxian Xiao ,  Pei-Chung Wang ,  Jorge F. Arinez ,  Joseph Clifford Simmer

    IPC: B23K11/16 ,  B23K11/00 ,  B23K11/11 ,  B29C65/34 ,  B29C65/64 ,  B23K103/16 ,  B23K103/00 ,  B29C65/48 ,  B29C65/00

    Abstract: A resistance spot welding method can be used to join polymeric and metallic workpieces together and includes the following steps: (a) placing an electrically conductive coating between a polymeric workpiece and a metallic workpiece, wherein the metallic workpiece has a textured surface facing the polymeric workpiece; (b) piercing the polymeric workpiece with first and second electrically conductive pins of a welding electrode assembly; (c) applying electrical energy to the first and second electrically conductive pins so that an electrical current flows through the first electrically conductive pin, the electrically conductive coating, and the second electrically conductive pin in order to at least partially melt the polymeric workpiece and the electrically conductive coating, thereby forming a weld pool; and (d) cooling the weld pool to form a solid weld nugget in order to establish a mechanical interface lock between the solid weld nugget and the textured surface.

    Methods for joining components by heat staking
    19.
    发明授权
    Methods for joining components by heat staking 有权

    公开(公告)号：US10099423B2

    公开(公告)日：2018-10-16

    申请号：US14634752

    申请日：2015-02-28

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Pei-Chung Wang ,  Bradley J. Blaski

    IPC: B29C65/30 ,  B29C65/60 ,  F16B5/04 ,  B29C65/00 ,  B29C65/18 ,  B29C65/34 ,  B29C65/64 ,  F16B43/00

    Abstract: The present technology discloses methods for joining a first workpiece and a second workpiece through a heat stake, and products formed thereby. The first workpiece has an aperture configured to receive a stud positioned on a second workpiece. The system is formed by applying energy to the first workpiece using electrodes, which indirectly heats the stud, at least partially softening material of the stud. Pressure is then applied to the softened material of the stud, and causing the material to form according to a predetermined geometry. After pressure is released, the stud forms a stake forming an interlocked joint connecting the workpieces.

    METHOD OF RIVETING INVOLVING ULTRASONIC PULSES
    20.
    发明申请
    METHOD OF RIVETING INVOLVING ULTRASONIC PULSES 审中-公开

    公开(公告)号：US20180207711A1

    公开(公告)日：2018-07-26

    申请号：US15413524

    申请日：2017-01-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Pei-Chung Wang ,  Bradley J. Blaski ,  Richard C. Janis ,  Susan M. Smyth

    IPC: B21J15/02 ,  B21J15/12

    CPC classification number: B21J15/12 ,  B21J15/025 ,  B21J15/043 ,  B21J15/08 ,  B21J15/147 ,  B21J15/36 ,  F16B5/04 ,  F16B19/086 ,  F16B19/1054

    Abstract: A method of riveting a first substrate and a second substrate with a rivet includes delivering a first ultrasonic pulse to a respective exterior surface of the first substrate at a predefined target area, via an ultrasonic device. The first ultrasonic pulse is configured to soften the first substrate at a first softening temperature. The method includes attaching a crust layer on a rivet head of the rivet. A second ultrasonic pulse is delivered to the predefined target area to soften the crust layer at a second softening temperature, via the ultrasonic device. A surface profile of the crust layer is fashioned via compression of a horn inner cavity of the ultrasonic device over the crust layer. The crust layer is cooled to harden into a seal configured to prevent entry of moisture between the rivet and the respective exterior surface of the first substrate, thereby reducing galvanic corrosion.

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