Title:
プレス成形方法およびプレス成形装置
Document Type and Number:
Japanese Patent JP6705449
Kind Code:
B2
Abstract:
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 T Ave , a minimum thickness T Min , and a maximum thickness T Max of the outward flange satisfy Equation 1 and Equation 2. 0.8 × T Ave ¤ T Min < T Ave T Ave < T Max ¤ 1.2 × T Ave
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Inventors:
Koji Tanaka
Ogawa Misao
Takashi Miyagi
Toshimitsu Aso
Hiroyuki Tagami
Ryo Kuroda
Ogawa Misao
Takashi Miyagi
Toshimitsu Aso
Hiroyuki Tagami
Ryo Kuroda
Application Number:
JP2017521975A
Publication Date:
June 03, 2020
Filing Date:
June 01, 2016
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21D22/26; B21D22/20; B21D24/00; B21D24/16
Domestic Patent References:
| JP5569661B2 | ||||
| JP2015081036A | ||||
| JP4438468B2 | ||||
| JP2009255116A | ||||
| JP2012051005A |
Foreign References:
| WO2015053036A1 | ||||
| WO2014148618A1 |
Attorney, Agent or Firm:
Sumio Tanai
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi
Mitsuo Teramoto
Tomoo Katsumata
Hiroshi Yamaguchi