发明申请
- 专利标题: METHOD OF FORMING A FLANGED TUBULAR MEMBER IN HYDROFORMING
- 专利标题(中): 在压铸中形成法兰管状构件的方法
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申请号: US12360584申请日: 2009-01-27
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公开(公告)号: US20100186477A1公开(公告)日: 2010-07-29
- 发明人: Bruno Barthelemy , Ramakrishna P. Koganti , Lawrence Anderson Queener
- 申请人: Bruno Barthelemy , Ramakrishna P. Koganti , Lawrence Anderson Queener
- 主分类号: B21C37/30
- IPC分类号: B21C37/30
摘要:
A method of forming a flanged tubular member includes the steps of: positioning a tubular blank in a die; applying nominal pressure; closing the dies; and increasing pressure within the blank, thereby converting the tubular blank to a hydroformed member having the flange and a hem with a cavity therein. The die halves define: a die tubular cavity portion; a die hem cavity portion; and a die flange cavity portion. Upon closing the die halves with nominal pressure and then increasing pressure, (1) the blank is deformed within the die tubular cavity portion; (2) the flange is defined from a portion of the blank in the die flange cavity portion; and (3) at least an intermediate hem is defined in the die hem cavity portion.
公开/授权文献
- US08171769B2 Method of forming a flanged tubular member in hydroforming 公开/授权日:2012-05-08
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