PRESS DIE FOR FORMING COMPONENT HAVING BENT PART, AND PRESS MOLDING METHOD

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-se...

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Bibliographic Details
Main Authors MATSUYAMA SHUNTARO, MIKAZUKI YUTAKA, ISOGAI EIJI
Format Patent
LanguageEnglish
Japanese
Published 14.09.2017
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Summary: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 【課題】湾曲部を有するハット型断面形状の部品をプレス成形する際に縮みフランジしわが生じる。このため、湾曲部を有し、かつ、湾曲部にフランジを有する部材を成形するプレス成形において、フランジに発生するしわを抑制するプレス金型を提供する。【解決手段】湾曲部を有し、かつ、湾曲部にフランジ10aを有するプレス部品を成形するプレス金型1において、フランジ10aを成形するフランジ成形部3に、プレス部品の縦壁を成形する縦壁部3bに対向するようにして段差部3cを形成する。【選択図】図4
Bibliography:Application Number: JP20160043779