发明授权
- 专利标题: Electromagnetic shape calibration of tubes
- 专利标题(中): 管的电磁形状校准
-
申请号: US12434703申请日: 2009-05-04
-
公开(公告)号: US08099989B2公开(公告)日: 2012-01-24
- 发明人: John R. Bradley , Michael H. Lovell , Kevin R. Marks , Terry A. Kent , Donald W Cotton
- 申请人: John R. Bradley , Michael H. Lovell , Kevin R. Marks , Terry A. Kent , Donald W Cotton
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 代理机构: Reising Ethington P.C.
- 主分类号: B21D39/00
- IPC分类号: B21D39/00 ; B23P17/00
摘要:
Articles are often formed from a tubular workpiece in a process which does not usefully shape the ends of the tube. In an embodiment of the invention, tube ends may be mechanically reduced in cross section and then expanded against a secondary forming surface(s) using an electromagnetic force to obtain desired shapes for the tube ends and minimize scrapping of workpiece material.
公开/授权文献
- US20100024503A1 Electromagnetic shape calibration of tubes 公开/授权日:2010-02-04
信息查询