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    Blind flow screw joining of materials
    2.
    发明授权
    Blind flow screw joining of materials 有权

    公开(公告)号：US10675671B2

    公开(公告)日：2020-06-09

    申请号：US15488233

    申请日：2017-04-14

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

    IPC: B21J15/02 ,  F16B13/02 ,  F16B19/10 ,  B21J15/04 ,  B21J15/14 ,  F16B25/00

    Abstract: A two-part mechanical fastener comprising an elongated body with a bore slidably carrying a mandrel adapted to interferingly engage the body is described. The fastener body has one or more protuberances on its exterior surface. In an aspect, the protuberances form a thread. The fastener is adapted to form an opening in, and penetrate, a stack of two or more workpieces. To secure the workpieces in the workpiece stack and form a robust joint, the fastener body is deformed by the mandrel, expanding the body, so that a body end engages a surface of the workpiece stack and the one or more protuberances are brought into engagement with the walls of the opening. Methods of using such a fastener to secure non-ferrous or polymer-based sheet-like workpieces to one another are disclosed.

    Nondeterministic assembly system and method
    5.
    发明授权
    Nondeterministic assembly system and method 有权

    公开(公告)号：US11059534B2

    公开(公告)日：2021-07-13

    申请号：US16223218

    申请日：2018-12-18

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dalong Gao ,  Ningjian Huang ,  Richard C. Janis

    IPC: B62D65/02 ,  B23P19/04

    Abstract: A method of assembling a manufactured item without a guide rail and an assembly system are provided. The method includes disposing a base item on an unmanned independent vehicle system, moving the unmanned independent vehicle system to an assembly station, and attaching an additional item to the base item. The assembly system includes a number of unmanned independent vehicle systems, each unmanned independent vehicle system having at least one wheel. Each unmanned independent vehicle system is configured to be loaded with a base item. A number of assembly stations are provided, each being configured to complete at least one assembly operation. Each unmanned independent vehicle system is configured to independently move to multiple of the assembly stations to have a different assembly operation performed at each assembly station, resulting in additional items being attached to each base item to form each manufactured item.

    Assembly and method for minimizing an overlap of a composite member riveted to another member
    8.
    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.

    Installation and design of a rivnut
    9.
    发明授权
    Installation and design of a rivnut 有权

    公开(公告)号：US11092184B2

    公开(公告)日：2021-08-17

    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.

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