发明申请
- 专利标题: METHOD FOR PRODUCING PRESS-FORMED PRODUCT
- 专利标题(中): 生产压制产品的方法
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申请号: US13877105申请日: 2011-09-30
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公开(公告)号: US20130199258A1公开(公告)日: 2013-08-08
- 发明人: Junya Naitou , Keisuke Okita , Shushi Ikeda
- 申请人: Junya Naitou , Keisuke Okita , Shushi Ikeda
- 申请人地址: JP Kobe-shi ,Hyogo
- 专利权人: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人地址: JP Kobe-shi ,Hyogo
- 优先权: JP2010-222938 20100930
- 国际申请: PCT/JP2011/072666 WO 20110930
- 主分类号: B21D37/16
- IPC分类号: B21D37/16 ; B21D22/20
摘要:
There is provided a useful method for producing a press-formed product without making the structure of a press tool complicated, which product has favorable formability in a level so as to be able to be produced by deep drawing, and which product is produced by press-forming a thin steel sheet with a punch and a die, in which the thin steel sheet is heated to a temperature not lower than an Ac3 transformation point thereof, and the press-forming is then started, wherein the forming is carried out so that a temperature difference in the thin steel sheet is adjusted to be not higher than 200° C. at a stage when the thin steel sheet has reached one third of a forming height.
公开/授权文献
- US09358602B2 Method for producing press-formed product 公开/授权日:2016-06-07
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