- 专利标题: STRETCH FLANGE CRACK EVALUATION METHOD, METAL SHEET SELECTION METHOD, PRESS DIE DESIGN METHOD, COMPONENT SHAPE DESIGN METHOD, AND PRESSED COMPONENT MANUFACTURING METHOD
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申请号: EP20770837.1申请日: 2020-03-13
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公开(公告)号: EP3939713B1公开(公告)日: 2023-11-08
- 发明人: FUJII, Kento , SHINMIYA, Toyohisa , YAMASAKI, Yuji
- 专利权人: JFE Steel Corporation
- 当前专利权人: JFE Steel Corporation
- 当前专利权人地址: 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo 100-0011 JP
- 代理机构: Hoffmann Eitle
- 优先权: JP2019047363 20190314
- 国际公布: WO2020184712 20200917
- 主分类号: B21D22/00
- IPC分类号: B21D22/00 ; G06F30/23 ; G06F30/10
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