公开(公告)号：US20210086290A1

公开(公告)日：2021-03-25

申请号：US16580289

申请日：2019-09-24

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Pei-chung Wang ,  Tae Hwa Lee ,  Bradley J. Blaski

IPC分类号： B23K20/10 ,  B29C65/08

摘要： Apparatus are provided for ultrasonic welding of a workpiece of one or more components. The apparatus includes a horn configured to contact the workpiece and to transmit energy to the workpiece. The horn includes a shank and a tip disposed at an end of the shank facing the workpiece. The tip has a face that has a tip radius forming a curved surface at the face. A knurl is formed on the face across the curved surface.

公开(公告)号：US20240157426A1

公开(公告)日：2024-05-16

申请号：US17984388

申请日：2022-11-10

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Joshua L. Solomon ,  Lu Huang ,  Hui-Ping Wang ,  Nathan Sigmund ,  Tae Hwa Lee ,  Blair E. Carlson

IPC分类号： B21D22/02

CPC分类号： B21D22/02

摘要： A forming tool has an upper portion composed of an upper forming die arranged between a first clamping element and a second clamping element, and a lower portion composed of a lower forming die arranged between a third clamping element and a fourth clamping element. The first clamping element and the third clamping element cooperate to exert a first clamping force on a workpiece; and the second clamping element and the fourth clamping element cooperate to exert a second clamping force on the workpiece. The upper forming die cooperates with the first and second clamping elements and the lower forming die cooperates with the third and fourth clamping elements to exert a lateral force on the workpiece when the first and second clamping forces are being exerted on the workpiece and when a vertical compressive force is being exerted upon the upper forming die and the lower forming die.

公开(公告)号：US10981245B2

公开(公告)日：2021-04-20

申请号：US16580289

申请日：2019-09-24

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Pei-chung Wang ,  Tae Hwa Lee ,  Bradley J. Blaski

IPC分类号： B23K20/10 ,  B29C65/08 ,  B23K101/36

摘要： Apparatus are provided for ultrasonic welding of a workpiece of one or more components. The apparatus includes a horn configured to contact the workpiece and to transmit energy to the workpiece. The horn includes a shank and a tip disposed at an end of the shank facing the workpiece. The tip has a face that has a tip radius forming a curved surface at the face. A knurl is formed on the face across the curved surface.