公开(公告)号：US20180133778A1

公开(公告)日：2018-05-17

申请号：US15576187

申请日：2016-06-01

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Yasuharu TANAKA ,  Misao OGAWA ,  Takashi MIYAGI ,  Toshimitsu ASO ,  Hiroyuki TANOUE ,  Ryo KURODA

IPC分类号： B21D28/26 ,  B21D22/02

CPC分类号： B21D28/26 ,  B21D22/02 ,  B21D22/20 ,  B21D22/26 ,  B21D24/16 ,  B21D53/88

摘要： This press-formed article includes: a top sheet portion; a sidewall continuing to the top sheet portion via a convex ridge line portion; a flange continuing to the sidewall via a concaved ridge line portion; and an outward flange continuing from an edge portion of the top sheet portion to an edge portion of the flange, via an edge portion of the convex ridge line portion, an edge portion of the sidewall, and an edge portion of the concaved ridge line portion, wherein in the same unit, an average thickness TAve, a minimum thickness TMin, and a maximum thickness TMax of the outward flange satisfy Equation 1 and Equation 2. 0.8×TAve≤TMin