Invention Grant
US06843089B2 Method of producing surface features in sheet metal using superplastic forming
有权
使用超塑性成形法生产钣金中的表面特征的方法
- Patent Title: Method of producing surface features in sheet metal using superplastic forming
- Patent Title (中): 使用超塑性成形法生产钣金中的表面特征的方法
-
Application No.: US10278600Application Date: 2002-10-23
-
Publication No.: US06843089B2Publication Date: 2005-01-18
- Inventor: Paul Edward Krajewski , George M. Barton , Gary A. Kruger
- Applicant: Paul Edward Krajewski , George M. Barton , Gary A. Kruger
- Applicant Address: US MI Detroit
- Assignee: General Motors Corporation
- Current Assignee: General Motors Corporation
- Current Assignee Address: US MI Detroit
- Agent Kathryn A. Marra
- Main IPC: B21D26/02
- IPC: B21D26/02 ; B21D53/88 ; B23P17/00
Abstract:
The present invention provides a method of embossing or imprinting patterns in the surface of a sheet metal article using superplastic forming at suitable SPF temperatures. A template having a pattern is interposed between a forming tool and a sheet metal blank. Gas pressure is applied to the sheet metal blank. This pressure forces the sheet metal against the surface of the lower forming tool having the template there between. The sheet metal blank is stretch formed according to the contours of the surface of the lower forming press and the template. The embossed and shaped sheet metal part is then removed from the forming tool.
Public/Granted literature
- US20040079129A1 Method of producing surface features in sheet metal using superplastic forming Public/Granted day:2004-04-29
Information query
