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.

公开(公告)号：US11738479B1

公开(公告)日：2023-08-29

申请号：US17731843

申请日：2022-04-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkateshwar R. Aitharaju ,  Selina X. Zhao ,  Ritesh Dixit ,  Terrence Wathen ,  Alexander Millerman

IPC: B29C33/30 ,  B29C33/20 ,  B29B11/14 ,  B29B11/06

CPC classification number: B29C33/303 ,  B29B11/06 ,  B29B11/14 ,  B29C33/202

Abstract: A mold for molding a composite preform that has an outer edge thereabout and a plurality of tethers each attached at respective opposed ends thereof to the outer edge. The mold includes first and second mold halves defining a mold body and being configured to transition between an open position and a generally closed position, and a plurality of moveable members each having a moveable gage pin configured for being wrapped thereabout by a respective one of the tethers and a respective actuator configured for moving the moveable gage pin between a respective first position in which the respective moveable gage pin is disposed at a respective first distance from a center of the mold body and a respective second position in which the respective moveable gage pin is disposed at a respective second distance from the center of the mold body that is less than the first distance.

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.