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    Assembly and method for minimizing an overlap of a composite member riveted to another member
    31.
    发明授权
    Assembly and method for minimizing an overlap of a composite member riveted to another member 有权

    公开(公告)号：US10240624B2

    公开(公告)日：2019-03-26

    申请号：US15238438

    申请日：2016-08-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Bradley J. Blaski ,  Richard C. Janis ,  Pei-chung Wang ,  Douglas M. Linn

    IPC: F16B19/08 ,  F16B5/04

    Abstract: An assembly and method for minimizing an overlap of a composite member riveted to another member includes a first member having a first overlap area and a second member having a second overlap area. The overlap areas of the first and second members are in direct contact, thereby forming an overlapped region. The overlapped region may be thicker than the sum of the individual members. The second member includes an end defining a projection in the overlapped region. The rivet is disposed through the first member and at least partially through the second member in the projection, thereby interlocking the second member to the first member. The projections include a curved symmetrical body defining an apex. The rivet extends through the body such that a line extending from the center axis of the rivet is perpendicular to a tangent extending through the apex of the projection.

    SYSTEM AND METHOD OF ENHANCED AUTOMATED WELDING OF FIRST AND SECOND WORKPIECES
    36.
    发明申请
    SYSTEM AND METHOD OF ENHANCED AUTOMATED WELDING OF FIRST AND SECOND WORKPIECES 有权

    公开(公告)号：US20210237200A1

    公开(公告)日：2021-08-05

    申请号：US16778870

    申请日：2020-01-31

    Applicant: GM Global Technology Operations LLC

    Inventor： Pei-chung Wang ,  Spyros P. Mellas ,  Miguel A Saez ,  John P. Spicer

    IPC: B23K26/08 ,  B23K9/095 ,  B23K9/127 ,  B23K31/12

    Abstract: A system and method of enhanced automated welding of a first workpiece and a second workpiece are provided. The method comprises providing a system for intelligent robot-based welding of the first workpiece and the second workpiece. The method further comprises determining a geometrical location of the first workpiece and the second workpiece to be welded at a welding sequence based a predetermined process variable. The method further comprises adjusting the predetermined process variable based on the geometrical location of the first and second workpieces to define an actual process variable. The method further comprises welding a first portion of the first and second workpieces with the actual process variable to define a first welded portion. The method further comprises determining a weld quality of the first welded portion.

    Hybrid workpiece joining
    38.
    发明授权
    Hybrid workpiece joining 有权

    公开(公告)号：US10682684B2

    公开(公告)日：2020-06-16

    申请号：US15371695

    申请日：2016-12-07

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Guoxian Xiao ,  Dalong Gao ,  Jorge F. Arinez ,  Ningjian Huang ,  Pei-chung Wang

    IPC: B23K20/00 ,  B21J15/02 ,  B21J15/04 ,  B23K20/12 ,  B23K20/22 ,  B23K103/18

    Abstract: A method for joining a plurality of workpieces includes providing a rotating drive tool. A fastener is secured to the drive tool. The drive tool is then rotatably driven such that a distal end of the fastener rotates against a surface of the plurality of workpieces. A heated material zone is then generated on the plurality of workpieces as caused by friction from the rotation of the fastener against the surface of the plurality of workpieces. The distal end of the fastener is rotatably and axially driven through the heated material zone. Finally, the drive tool is removed from the fastener, such that when the heated material zone cools, a portion of the heated material zone is fused to the fastener.

    INSTALLATION AND DESIGN OF A RIVNUT
    39.
    发明申请
    INSTALLATION AND DESIGN OF A RIVNUT 审中-公开

    公开(公告)号：US20200096032A1

    公开(公告)日：2020-03-26

    申请号：US16139536

    申请日：2018-09-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Bradley Blaski ,  Richard C. Janis ,  Pei-chung Wang

    IPC: F16B19/10 ,  F16B5/04

    Abstract: A rivet nut (“rivnut”) installation method and a rivnut structural configuration are disclosed that can be implemented separately in conjunction with one another to serve as an anchor in and/or a workpiece at an installation location. The rivnut installation method involves inserting a rivnut onto an externally threaded mandrel, rotating the mandrel while a free end of the mandrel is in contact with the workpiece, and driving the free end of the mandrel and the rivnut through the workpiece while continuing to rotate the mandrel. The method is particularly useful when the workpiece includes one or more substrate layers composed of a low ductility material such as a polymer composite. The rivnut structural configuration includes the incorporation of an external threading onto at least a portion of a hollow shaft of the rivnut.

    SELF PIERCING RIVET WITH DUAL ATTACHMENT
    40.
    发明申请
    SELF PIERCING RIVET WITH DUAL ATTACHMENT 审中-公开

    公开(公告)号：US20190277320A1

    公开(公告)日：2019-09-12

    申请号：US15918346

    申请日：2018-03-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven Cipriano ,  Bradley J. Blaski ,  Richard C. Janis ,  Pei-chung Wang

    IPC: F16B5/04 ,  B21J15/02

    Abstract: A method of joining top and bottom layers of material according to the principles of the present disclosure includes providing a rivet having a head and a headless end, wherein a rimmed edge extends downward from the head toward the headless end, applying a layer of adhesive between the top and bottom layers and allowing the adhesive layer to at least partially cure. The method further includes piercing the top layer with a headless end of a rivet after the adhesive layer is cured, deforming the top layer with the rimmed edge and bottom layer with the headless end of the rivet, and forcing the rimmed edge and the headless end of the rivet to bend radially outward during deformation of the top and bottom layers.

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