发明名称 |
METHOD FOR PROCESSING A METAL WORKING MEMBER SUCH AS AN EXTRUSION DIE; METHOD FOR EXTRUDING A PRODUCT USING SAID PROCESSED DIE |
摘要 |
A molten residual layer formed on a surface 26 of an electric-discharge machined portion 12 of a metal molding member 1 is eliminated by using a tool 70 made by a wire discharge grinding method. According to the wire discharge grinding method, a minute tool which high in processing accuracy and high in hardness can be obtained. Since the molten residual layer formed on a surface 26 of the portion 12 due to the electric-discharge machining is eliminated by using the tool, the molten residual layer can be eliminated uniformly with high accuracy. |
申请公布号 |
EP1487596(A1) |
申请公布日期 |
2004.12.22 |
申请号 |
EP20030745006 |
申请日期 |
2003.03.26 |
申请人 |
SHOWA DENKO K.K. |
发明人 |
HIRAMOTO, KIMIHISA;HAMANO, HIDEMITSU |
分类号 |
B23H1/04;B21C25/00;B21C25/02;B21C25/10;B23H1/00;B23H7/26;B23H9/00;B23H9/02;B23P15/24;(IPC1-7):B21C25/10 |
主分类号 |
B23H1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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