公开(公告)号：US20170165739A1

公开(公告)日：2017-06-15

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 ,  B21J15/10

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：US20160354859A1

公开(公告)日：2016-12-08

申请号：US15236921

申请日：2016-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: B23K20/10 ,  B23K20/24 ,  B23K20/26

CPC classification number: B23K20/10 ,  B23K20/106 ,  B23K20/24 ,  B23K20/26 ,  B23K2103/42 ,  B29C65/08 ,  B29C65/82 ,  B29C65/8253 ,  B29C66/0342 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/71 ,  B29C66/7212 ,  B29C66/727 ,  B29C66/7352 ,  B29C66/73774 ,  B29C66/7392 ,  B29C66/73921 ,  B29C66/742 ,  B29C66/81425 ,  B29C66/8322 ,  B29C66/83221 ,  B29C66/91221 ,  B29C66/91231 ,  B29C66/91951 ,  B29C66/92211 ,  B29C66/92311 ,  B29C66/92431 ,  B29C66/92445 ,  B29C66/92611 ,  B29C66/929 ,  B29C66/92921 ,  B29C66/9421 ,  B29C66/9441 ,  B29C66/949 ,  B29C66/9592 ,  B29C66/961 ,  B29C66/963 ,  B29C66/964 ,  B29K2105/08 ,  B29K2307/04 ,  B29K2077/00

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.