公开(公告)号：US11548056B2

公开(公告)日：2023-01-10

申请号：US16749362

申请日：2020-01-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Susan M. Smyth ,  Bradley J. Blaski ,  Zhongxia Liu

IPC: B29C65/00 ,  B21J15/02 ,  B21J15/36 ,  B21J15/28 ,  B21J15/14 ,  B29C65/56 ,  B21J15/10

Abstract: A riveting system, for use in mechanically linking adjacent workpieces, including a rivet having a height greater than a sum of thicknesses, measured along a line of riveting, of the workpieces being linked, so that the rivet can pass fully through the workpieces. The system also includes a riveting die, which may be a separate product. The die includes a protrusion extending from a peak toward a transition point; and a trough having a trough surface. The trough surface includes a trough inner wall, extending from the transition point to a trough bottom, and a trough outer wall, extending from the trough bottom to a trough outer edge. The technology also includes computerized systems for comparing a load-displacement profile of riveting to a pre-set profile to determine whether the riveting was performed properly.

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.

公开(公告)号：US20210129453A1

公开(公告)日：2021-05-06

申请号：US16669802

申请日：2019-10-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Bradley J. Blaski ,  Athreya Nagesh

IPC: B29C65/00 ,  B29C65/08

Abstract: A method of joining includes disposing a second workpiece adjacent to a first workpiece. The method further includes identifying a determined hardness parameter of at least one of the first and second workpieces at a welding position. The determined hardness parameter is determined by at least one of estimation, calculation, and measurement. The method includes selecting a weld schedule based on the determined hardness parameter and welding the first and second workpieces together using the selected weld schedule. A welding horn includes a shank and a tip having an end face, the tip being disposed at an end of the shank and configured to contact a workpiece and to transmit energy to the workpiece. Knurls are disposed on the end face, each knurl having a distal end. A curved indenter extends from the end face beyond the distal ends of the knurls.

公开(公告)号：US10576532B2

公开(公告)日：2020-03-03

申请号：US15355695

申请日：2016-11-18

Applicant: GM Global Technology Operations LLC

Inventor： Pei-chung Wang ,  Susan M. Smyth ,  Bradley J. Blaski ,  Zhongxia Liu

IPC: B21J15/02 ,  B21J15/36 ,  B21J15/10

Abstract: A riveting system, for use in mechanically linking adjacent workpieces, including a rivet having a height greater than a sum of thicknesses, measured along a line of riveting, of the workpieces being linked, so that the rivet can pass fully through the workpieces. The system also includes a riveting die, which may be a separate product. The die includes a protrusion extending from a peak toward a transition point; and a trough having a trough surface. The trough surface includes a trough inner wall, extending from the transition point to a trough bottom, and a trough outer wall, extending from the trough bottom to a trough outer edge. The technology also includes computerized systems for comparing a load-displacement profile of riveting to a pre-set profile to determine whether the riveting was performed properly.

公开(公告)号：US20200016679A1

公开(公告)日：2020-01-16

申请号：US16034712

申请日：2018-07-13

Applicant: GM Global Technology Operations LLC

Inventor： Pei-chung Wang ,  Michael J. Karagoulis ,  Spyros P. Mellas ,  Zhenke Teng

IPC: B23K11/16 ,  C23C4/08 ,  B23K11/34

Abstract: A method to mitigate liquid metal embrittlement cracking in resistance welding of galvanized steels includes modifying at least one face of a steel member to create a first workpiece by: applying a zinc containing material in a first layer to the at least one face of the steel member; and spraying a second layer of a copper containing material onto the first layer of the zinc containing material. The at least one face of the first workpiece is abutted to a second workpiece of a steel material. A resistance welding operation is performed to join the first workpiece to the second workpiece. A temperature of the resistance welding operation locally melts the zinc containing material and the copper containing material to create a brass alloy of the zinc containing material and the copper containing material.

公开(公告)号：US10464282B2

公开(公告)日：2019-11-05

申请号：US15395978

申请日：2016-12-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Susan M. Smyth ,  Bhavesh Shah ,  Bradley J. Blaski

IPC: B23B3/30 ,  F16B17/00 ,  B32B7/14 ,  B32B3/30 ,  F16B11/00 ,  B23K20/10 ,  F16B5/08 ,  F16B5/07 ,  B32B7/12 ,  B32B37/12

Abstract: An adhesive-bonded component including a first workpiece having a first substrate and a first mating surface including a plurality of protrusions. The component also includes a second workpiece comprising a second substrate having a second mating surface contacting the first mating surface and adhesive positioned on the first mating surface. In various embodiments, the second mating surface comprises troughs receiving the protrusions of the first workpiece, and the plurality of protrusions of the first workpiece and the troughs of the second workpiece may be arranged in multiple mating patterns. The technology also includes processes of making the components.

公开(公告)号：US10105788B2

公开(公告)日：2018-10-23

申请号：US15236607

申请日：2016-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Pei-chung Wang ,  Susan M. Smyth ,  Zhongxia Liu

IPC: B32B37/00 ,  B23K20/10 ,  B23K20/26 ,  B23K20/24 ,  B29C65/08 ,  B29C65/00 ,  B29C65/82 ,  B29K105/08 ,  B29K307/04

Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.

公开(公告)号：US20180236528A1

公开(公告)日：2018-08-23

申请号：US15957976

申请日：2018-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: B21J15/14 ,  B21J15/36 ,  B21J15/26

CPC classification number: B21J15/14 ,  B21J15/025 ,  B21J15/08 ,  B21J15/12 ,  B21J15/147 ,  B21J15/26 ,  B21J15/36 ,  B29C65/002 ,  B29C65/02 ,  B29C65/08 ,  B29C65/3408 ,  B29C65/562 ,  B29C65/7841 ,  B29C66/0242 ,  B29C66/1122 ,  B29C66/21 ,  B29C66/41 ,  B29C66/73921 ,  B29C66/81423 ,  B29C66/81431 ,  B29C66/81871 ,  B29C66/8322

Abstract: A joining device includes a nose, a punch, and a die anvil. The punch is coaxially slidable within the nose. A fastener is arranged within the nose and is coaxially slidable within the nose and movable by the punch. An ultrasonic vibration is focused through the die anvil to a zone on a material assembly arranged thereon for heating the zone. The punch is configured to drive the fastener outwardly from the nose and into the material assembly at the zone.

公开(公告)号：US20180051730A1

公开(公告)日：2018-02-22

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: F16B5/04 ,  F16B19/08

CPC classification number: F16B5/04 ,  F16B19/08

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.

公开(公告)号：US09897125B2

公开(公告)日：2018-02-20

申请号：US15158839

申请日：2016-05-19

Applicant: GM Global Technology Operations LLC

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

IPC: F16B19/08 ,  F16B5/04

CPC classification number: F16B19/086 ,  F16B5/04 ,  F16B19/08

Abstract: A fastener is provided. The fastener includes a fastening portion configured to fasten a body; and a retaining portion configured to retain a portion of the body after the fastening portion is fastened to the body. The fastener apparatus may be used to attach composite body materials to a vehicle.