Not only a reduction in the load resistant performance of a structural member in a vehicle body having a quenched portion with a tensile strength of 1,470 MPa or greater, but also a reduction in the shock absorbing performance associated with the HAZ softening by welding are suppressed. In a joining structure (10) for a member in a vehicle body in which a first member (11) that is made of steel, has a closed hollow cross-section having no outward flange, and is provided with a quenched portion having a tensile strength of 1,470 MPa or greater, a base material portion having a tensile strength of less than 700 MPa, and a transition portion (17) between the quenched portion (16) and the base material portion (18) in a longitudinal direction thereof, and a second member (12) that is made of steel and overlaps the first member (11) are welded to each other in an overlapping portion, the overlapping portion exists over the base material portion (18) from the quenched portion (16) of the first member (11) through the transition portion (17), and a welding portion (13) formed by welding exists in the transition portion (17) or the base material portion (18) in the first member (11).


    Access

    Download


    Export, share and cite



    Title :

    Joining structure for member in vehicle body


    Contributors:

    Publication date :

    2018-09-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / 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 / B23K Löten , SOLDERING OR UNSOLDERING / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



    JOINING STRUCTURE OF VEHICLE BODY MEMBER

    ASAKAWA MOTOYASU | European Patent Office | 2016

    Free access

    JOINING STRUCTURE FOR MEMBER IN VEHICLE BODY

    YOSHIDA MICHITAKA / TOMIZAWA ATSUSHI / UEMATSU KAZUO | European Patent Office | 2017

    Free access

    Vehicle member joining structure and vehicle member joining method

    MINEI TAICHI | European Patent Office | 2018

    Free access

    VEHICLE MEMBER JOINING STRUCTURE AND VEHICLE MEMBER JOINING METHOD

    MINEI TAICHI | European Patent Office | 2016

    Free access

    JOINING STRUCTURE FOR MEMBER IN MOTOR VEHICLE BODY

    European Patent Office | 2018

    Free access