- 专利标题: Method for manufacturing press formed product
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申请号: US16957122申请日: 2018-12-17
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公开(公告)号: US11511330B2公开(公告)日: 2022-11-29
- 发明人: Shunsuke Tobita , Toyohisa Shinmiya , Yuji Yamasaki
- 申请人: JFE Steel Corporation
- 申请人地址: JP Tokyo
- 专利权人: JFE Steel Corporation
- 当前专利权人: JFE Steel Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: RatnerPrestia
- 优先权: JPJP2017-247992 20171225
- 国际申请: PCT/JP2018/046409 WO 20181217
- 国际公布: WO2019/131289 WO 20190704
- 主分类号: B21D22/26
- IPC分类号: B21D22/26 ; B21D19/00 ; B21D37/16
摘要:
A press formed product is disclosed. A method for manufacturing the press formed product is a method for manufacturing the press formed product including applying press processing including stretch flange forming to a single metal sheet of one sheet material after performing shearing processing of the metal sheet to manufacture the press formed product. When a region where a stretch flange crack is estimated to be likely to occur when the single metal sheet is press formed by the press processing is set as a stretch flange crack region, the press processing is applied after heating and cooling the end surface of the metal sheet positioned in the stretch flange crack region and at least the end surface in the end surface and the vicinity thereof in the single metal sheet after the shearing processing.
公开/授权文献
- US20200346269A1 METHOD FOR MANUFACTURING PRESS FORMED PRODUCT 公开/授权日:2020-11-05