发明授权
- 专利标题： Method of die-forming parts with improved grain structure
- 专利标题（中）： 具有改进的颗粒结构的成型部件的方法
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申请号： US3791188D申请日： 1971-10-26
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公开(公告)号： US3791188A公开(公告)日： 1974-02-12
- 发明人: DEUSSEN E
- 申请人： DEUSSEN E
- 专利权人： E Deussen
- 当前专利权人： E Deussen
- 优先权： US19228971 1971-10-26
- 主分类号： B21J5/02
- IPC分类号： B21J5/02 ; B21K1/02 ; B21K1/76
摘要：
A method of die-forming parts so that, in their final shape, they have a substantially continuous grain structure, whereby a cylindrical blank is shaped into a spherical part by drawing the grain line ends together in two polar areas, and the spherical part is reshaped into a ring of final dimensions without breaking any of the grain lines.
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