RIGIDITY IMPROVEMENT METHOD FOR PRESS-MOLDED ARTICLE, PRESS-MOLDING DIE, PRESS-MOLDED ARTICLE, AND PRODUCTION METHOD FOR PRESS-MOLDED ARTICLE

To suppress springback of the press-formed product, in improving rigidity of a press-formed product having a low rigidity shape produced by press-forming a sheet material by a rigidity adding shape to suppress springback at a time when the press-formed product is removed from a die, the rigidity add...

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Bibliographische Detailangaben
Hauptverfasser:	YAMASAKI, Yuji, KARIYAZAKI, Yuta
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	To suppress springback of the press-formed product, in improving rigidity of a press-formed product having a low rigidity shape produced by press-forming a sheet material by a rigidity adding shape to suppress springback at a time when the press-formed product is removed from a die, the rigidity adding shape is arranged to extend in a direction of crossing a displacement contour indicating a state of springback in an initial shape prior to an arrangement of the rigidity adding shape of the press-formed product.