公开(公告)号：US09981305B2

公开(公告)日：2018-05-29

申请号：US15189560

申请日：2016-06-22

Applicant: GM Global Technology Operations LLC

Inventor： Ritesh Dixit ,  Yi-Chun Li

IPC: B21D28/00 ,  B21D28/02 ,  B21D53/88 ,  B21D22/02 ,  B21D28/10

CPC classification number: B21D53/88 ,  B21D22/02 ,  B21D28/00 ,  B21D28/02 ,  B21D28/10

Abstract: A method for manufacturing a body panel, the method includes drawing a metal sheet into a body panel, trimming a first and second portion of the body panel to form a first and second opening and a cross member. The cross member extends between the first and second openings. The method further includes trimming a portion of the cross member to form a first and a second retention tab and forming a flange in the edge of the first opening, the edge of the second opening and the first and second retention tabs. The method further includes trimming the first and second retention tabs at the edge of the first and second opening.

公开(公告)号：US20170368594A1

公开(公告)日：2017-12-28

申请号：US15189560

申请日：2016-06-22

Applicant: GM Global Technology Operations LLC

Inventor： Ritesh Dixit ,  Yi-Chun Li

IPC: B21D53/88 ,  B21D28/00

CPC classification number: B21D53/88 ,  B21D22/02 ,  B21D28/00 ,  B21D28/02 ,  B21D28/10

Abstract: A method for manufacturing a body panel, the method includes drawing a metal sheet into a body panel, trimming a first and second portion of the body panel to form a first and second opening and a cross member. The cross member extends between the first and second openings. The method further includes trimming a portion of the cross member to form a first and a second retention tab and forming a flange in the edge of the first opening, the edge of the second opening and the first and second retention tabs. The method further includes trimming the first and second retention tabs at the edge of the first and second opening.