Title:
湾曲部を有する部品を成形するプレス金型
Document Type and Number:
Japanese Patent JP6662113
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a press die capable of suppressing wrinkles generated on a flange, in press molding for molding a member having a bent part, and having a flange on the bent part, because shrink flange wrinkles are generated when press molding a component having a hat-shaped cross-sectional shape having a bent part.SOLUTION: In a press die 1 for molding a press part having a bent part, and having a flange 10a on the bent part, a step part 3c is formed so as to face to a vertical wall part 3b for molding a vertical wall of the press part, on a flange molding part 3 for molding the flange 10a.SELECTED DRAWING: Figure 4
Inventors:
Eishi Isogai
Shuntaro Matsuyama
Yutaka Mikazuki
Shuntaro Matsuyama
Yutaka Mikazuki
Application Number:
JP2016043779A
Publication Date:
March 11, 2020
Filing Date:
March 07, 2016
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21D22/26; B21D24/00
Domestic Patent References:
| JP2015142928A | ||||
| JP2016002560A |
Foreign References:
| US4185488 |
Attorney, Agent or Firm:
Koji Hagiwara
Tetsuo Kanamoto
Tetsuo Kanamoto