The invention relates to a method for manufacturing a molded article, a molded article, and a structural member using the same. The manufacturing method is a method for manufacturing a long molded article formed from a single steel plate, the molded article including a top plate portion, a vertical wall portion, a flange portion, and a protruding portion, the cross-sectional circumference of a cross-section perpendicular to the longitudinal direction of the molded article in a protruding region being longer than the cross-sectional circumference of a cross-section perpendicular to the longitudinal direction of the molded article in a non-protruding region, and the cross-sectional circumference of the cross-section perpendicular to the longitudinal direction of the molded article being greater than the cross-sectional circumference of the cross-section perpendicular to the longitudinal direction of the molded article. The manufacturing method comprises: a first step for obtaining a deformed steel plate by deforming a raw material steel plate such that the deformed steel plate has a long shape; the deformed steel plate comprises two vertical wall part equivalent parts which are the two vertical wall parts, a top plate part equivalent part which is the top plate part, and a protruding part equivalent part which is the protruding part. The cross-sectional circumference of a cross-section in a first region formed as the protruding region is longer than the cross-sectional circumference of a cross-section in a second region formed as the non-protruding region. And a second step for forming the molded article by molding the deformed steel sheet, in which the protruding part is formed by overlapping at least a part of the protruding part-corresponding part.

    本发明涉及成型品的制造方法、成型品以及使用其的构造部件。该制造方法是由一张钢板形成的长尺寸的成型品的制造方法,该成型品包括顶板部、纵壁部、凸缘部以及突出部,突出区域的与成型品的长度方向垂直的截面的截面周长比非突出区域的与成型品的长度方向垂直的截面的截面周长长,该制造方法包括:第1工序,是通过使原料钢板变形而得到变形钢板的工序,使上述原料钢板变形为:上述变形钢板具有长尺寸形状,上述变形钢板包括成为两个上述纵壁部的两个纵壁部相当部、成为上述顶板部的顶板部相当部、以及成为上述突出部的突出部相当部,在上述变形钢板的长度方向上,成型为上述突出区域的第1区域中的截面的截面周长比成型为上述非突出区域的第2区域中的截面的截面周长长;以及第2工序,对上述变形钢板进行成型而形成上述成型品,在上述第2工序中,通过使上述突出部相当部的至少一部分重叠来形成上述突出部。


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    Title :

    Method for producing molded article, molded article, and structural member using same


    Additional title:

    成型品的制造方法、成型品以及使用其的构造部件


    Contributors:

    Publication date :

    2022-06-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B62D MOTOR VEHICLES , Motorfahrzeuge



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