发明公开
EP1671723A2 Split die and method for production of compacted powder metal parts
无效
Mehrteilige Pressform sowie Verfahren zur Herstellung einesPresskörpersaus Metallpulver
- 专利标题: Split die and method for production of compacted powder metal parts
- 专利标题(中): Mehrteilige Pressform sowie Verfahren zur Herstellung einesPresskörpersaus Metallpulver
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申请号: EP05025535.5申请日: 2005-11-23
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公开(公告)号: EP1671723A2公开(公告)日: 2006-06-21
- 发明人: Hicklen, Edwin Scott , Kuplen, Sean , Xu, Kai , Sun, Ryan
- 申请人: Borgwarner, Inc.
- 申请人地址: 3850 Hamlin Road Auburn Hills MI 48326 US
- 专利权人: Borgwarner, Inc.
- 当前专利权人: Borgwarner, Inc.
- 当前专利权人地址: 3850 Hamlin Road Auburn Hills MI 48326 US
- 代理机构: Petruzziello, Aldo
- 优先权: US17013 20041220
- 主分类号: B22F3/03
- IPC分类号: B22F3/03
摘要:
A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder. Alternatively, relative movement may take place after the completion of filling the cavity adjacent the top die with sufficient powder to fill the part.
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