发明授权
- 专利标题： Method for manufacturing master of die for shaping golf ball
- 专利标题（中）： 高尔夫球成型模具制作方法
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申请号： US73041申请日： 1993-06-08
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公开(公告)号： US5406043A公开(公告)日： 1995-04-11
- 发明人: Masatoshi Banji
- 申请人： Masatoshi Banji
- 申请人地址： JPX
- 专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人： Sumitomo Rubber Industries, Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX4-174692 19920608
- 主分类号： B23H7/00
- IPC分类号： B23H7/00 ; B23H9/06 ; B29C33/42 ; B23H1/00 ; B23H9/12
摘要：
A method for forming a master die from a conductive material using electrical discharge machining. The conductive material is created to have a plurality of dimples that are non-circular in a direction perpendicular to the spherical surface of a conductive material and/or in a vertical cross section. The plurality of dimples being formed by electric discharge machining using an electrode that is moved in a direction perpendicular to the surface of the material.
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