A deformed part in a case in which the application of a collision load causes bending deformation in a structural member for an automobile body having a hardness distribution (strength distribution) composed of a quenched part, a base metal hardness part, and a transition part in a longitudinal direction is used as the base metal hardness part to avoid plastic strain concentration in the quenched part. This structural member for an automobile body has a hollow steel main body having a rectangular cross section. The main body includes a quenched part, a base metal hardness part, and a transition part in this order, in at least a part thereof in an axial direction. The length (L) of the transition part as related to the axial direction satisfies the relationship of 0.006 (mm -1 ) < LA/I ¤ 0.2 (mm -1 ) in a case in which the cross-sectional area of the main body is (A) and the moment of inertia of area is (I).


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    Title :

    STRUCTURAL MEMBER FOR AUTOMOBILE BODY


    Additional title:

    STRUKTURELLES ELEMENT FÜR AUTOMOBILKAROSSERIE
    ÉLÉMENT STRUCTUREL POUR CARROSSERIE D'AUTOMOBILE


    Contributors:

    Publication date :

    2018-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C21C Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl , PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL / F27D Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind , DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / B62D MOTOR VEHICLES , Motorfahrzeuge / B23K Löten , SOLDERING OR UNSOLDERING



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