发明名称 |
Metal sheet pressing method |
摘要 |
This invention provides a metal sheet pressing method of precision-pressing a metal sheet, wherein after a metal sheet (1) is partially drawn so as to form a perforated portion (1a), the perforated portion (1a) is heated by baking and after it is heated by baking, the perforated portion (1a) is pressed with press dies into an uneven-surface shape.
|
申请公布号 |
US2009078021(A1) |
申请公布日期 |
2009.03.26 |
申请号 |
US20080292320 |
申请日期 |
2008.11.17 |
申请人 |
ISHIHARA MINORU;KAYAO TOSHIO |
发明人 |
ISHIHARA MINORU;KAYAO TOSHIO |
分类号 |
B21D13/00;B21D22/26;B21D24/00;B21D31/02;B21D37/16 |
主分类号 |
B21D13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|