发明名称 |
Method for predicting an amount of dimensional accuracy defect at the time of press-forming metal sheet |
摘要 |
A method in which engineers having no experience and technical storage can preliminarily easily and accurately predict an amount of dimensional accuracy defect which occurs at the time of press-forming a metal sheet before press-forming without having expertise such numerical value simulations and mathematics. In predicting an amount of dimensional accuracy defect at the time of press-forming a metal sheet, as a stress-strain relationship, an elastic-perfectly plastic solid model having a fixed stress value after being yielded is adopted and a value which is equal to or less than a tensile strength and exceeds a yield strength is used as an apparent yield strength.
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申请公布号 |
US6915244(B2) |
申请公布日期 |
2005.07.05 |
申请号 |
US20000733905 |
申请日期 |
2000.12.12 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
发明人 |
YAMANO TAKAYUKI;IWAYA JIRO |
分类号 |
B21D5/00;B21D22/00;(IPC1-7):G06F17/10 |
主分类号 |
B21D5/00 |
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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