发明名称 |
Method of producing press-forming punch and die |
摘要 |
An economical method of producing a press-forming die is disclosed wherein a master die and a master punch are relatively reciprocated to produce a press-formed panel. A working surface of the master die is cut down by a predetermined cutting depth, and the press-formed panel is fitted over the master punch. While a second blank sheet having a thickness equal to the cutting depth of the master die working surface is placed between the master die and the press-formed panel fitted over the master punch, the master die and punch are relatively reciprocated whereby the second blank sheet is press-formed into a die panel. A back-up material such as high-strength cement is then applied to the rear surface of the die panel whereby a press-forming die is produced. A method of producing a press-forming punch is also disclosed.
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申请公布号 |
US6474196(B2) |
申请公布日期 |
2002.11.05 |
申请号 |
US20010783357 |
申请日期 |
2001.02.14 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
WATANABE TEIJI;NAKAMURA MASAFUMI;NAKAMURA YOSHIKAZU |
分类号 |
B21D24/00;B21D37/20;B23P15/24;(IPC1-7):B21K5/20 |
主分类号 |
B21D24/00 |
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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