发明授权
- 专利标题: Forging die
- 专利标题(中): 锻造模具
-
申请号: US09720029申请日: 2001-01-18
-
公开(公告)号: US06457341B1公开(公告)日: 2002-10-01
- 发明人: Eric Wirgarth
- 申请人: Eric Wirgarth
- 优先权: SE9802310 19980629
- 主分类号: B21J1302
- IPC分类号: B21J1302
摘要:
The invention relates to a forging apparatus used for forging a heated blank (24a), which in a pre-treated operation has been given a volume essentially corresponding to that of the final product, said forging apparatus comprising upper and lower die parts (2, 16) arranged to be brought together into abutting relationship and having contacting surfaces (42a, 18b) extending transversely of the direction of movement of the die parts, whereby when the contacting surfaces (42a, 18b) are pressed together and brought into contact with one another as result of pressure exerted thereon, the blank is shaped in conformity with a die cavity defined with precision by the die parts (2, 16). The configuration of the forged component then essentially agrees with that of the desired finished component, i.e. no or at least only minimum post-treatment is required. Said contacting surfaces (42a, 18b) extending transversely of the direction of movement of the die parts are arranged to have no contact with the die cavity (25) during the forging operation.