发明授权
- 专利标题: PRESS-FORMING METHOD
- 专利标题(中): 压制方法
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申请号: EP13871898.6申请日: 2013-01-16
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公开(公告)号: EP2946845B1公开(公告)日: 2017-06-28
- 发明人: UCHIYAMA, Shigeru , TANAKA, Yasuharu , MIYAGI, Takashi , OGAWA, Misao
- 申请人: Nippon Steel & Sumitomo Metal Corporation
- 申请人地址: 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人地址: 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 代理机构: Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 国际公布: WO2014112056 20140724
- 主分类号: B21D53/88
- IPC分类号: B21D53/88 ; B21D22/26 ; B21D22/21
摘要:
A press-forming method which press-forms a final shaped article which comprises a top sheet part, vertical wall parts, and flange parts and which has at least one bent part in a longitudinal direction, which method forms the top sheet part, vertical wall parts, bent part, and flange parts, includes a first shaping process of bending a flange part at an intersecting part until an angle of the flange part with a horizontal line becomes ± 1 in a plane which includes a horizontal line which connects an intersecting part of a vertical wall part and a flange part and a center of curvature of the bent part and which is vertical to the high strength steel sheet and a second shaping process of additionally bending the flange part after the first shaping process at the intersecting part until the angle of the flange part with the horizontal line becomes ± 2 in that plane, makes the additional bending angle ² of ± 1 -± 2 predetermined ranges, and thereby reduces the warping and torsion of the final shaped article.
公开/授权文献
- EP2946845A1 PRESS-MOLDING METHOD 公开/授权日:2015-11-25
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