The invention relates to a molded article, a structural member using the same, and a method for manufacturing the molded article. This molded article is a long molded article formed from a single steel plate, and comprises: a top plate part extending in the longitudinal direction; vertical wall parts extending downward from both widthwise edges of the top plate part; and a protruding portion formed in a portion of the top plate portion in the longitudinal direction by overlapping a portion extending outward from both ends of the top plate portion in the width direction and a portion extending outward from an upper end of the vertical wall portion. A recess extending in the longitudinal direction is formed in the top plate portion. The total value [alpha] of the inner surface perimeters of the top plate section and the vertical wall section in a cross-section perpendicular to the longitudinal direction of the molded article in the protruding region, and the top plate section in a cross-section perpendicular to the longitudinal direction of the molded article in the non-protruding region. The sum (beta) of the inner surface perimeter of the vertical wall portion and the inner surface perimeter of the recessed portion satisfies 1.01 < = beta/alpha < = 1.50.

    本发明涉及成型品、使用其的构造部件以及成型品的制造方法。该成型品是由一张钢板形成的长尺寸的成型品,包括:顶板部,沿着长度方向延伸;纵壁部,从上述顶板部的宽度方向两边缘朝下方延伸;突出部,通过从上述顶板部的上述宽度方向两端朝向外侧延伸的部位与从上述纵壁部的上端朝向上述外侧延伸的部位相互重叠而形成于上述顶板部的上述长度方向的一部分,在非突出区域中,在上述顶板部形成有沿着上述长度方向延伸的凹部,突出区域中的与上述成型品的上述长度方向垂直的截面中的上述顶板部与上述纵壁部的内表面周长的合计值α、以及上述非突出区域中的与上述成型品的上述长度方向垂直的截面中的上述顶板部、上述纵壁部与上述凹部的内表面周长的合计值β满足1.01≤β/α≤1.50。


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    Title :

    Molded article, structural member using same, and method for manufacturing molded article


    Additional title:

    成型品、使用其的构造部件以及成型品的制造方法


    Contributors:

    Publication date :

    2022-05-13


    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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