The invention relates to a side wall inner plate for a vehicle. The side wall inner plate comprises a side wall inner plate body, wherein the side wall inner plate body adopts an annular structure; a B column body is arranged on one side of the annular structure; an A column body is arranged on the upper side of the annular structure; the side wall inner plate is characterized in that a main body part of the side wall inner plate body is formed by an ultrahigh-intensity steel thermal forming technology and is a martensitic structure with the intensity of 1,300-1,500MPa; the upper surface of the A column body is a flange face hasped with a top cover; the flange surface is a ferrite and pearlite structure or a bainite structure which is obtained by slow cooling in the ultrahigh-intensity steel thermal forming technology and has the intensity of 500-700MPa; a first reinforcement plate is arranged in an intersection region of the A column body and the B column body; a second reinforcement plate is arranged above a windshield mounting hole on the A column body. According to the side wall inner plate, the flange face hasped with the top cover is changed into a soft region, so that the toughness can be enhanced, and the effect of partially absorbing energy can be achieved; meanwhile, the intensity of the intersection region of an A column and a B column is guaranteed; furthermore, in frontal impact, the A column cannot be bent.


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    Titel :

    Side wall inner plate


    Beteiligte:
    SUN CAI (Autor:in) / CHEN YANG (Autor:in) / LI XIANGRONG (Autor:in) / YANG YUNLONG (Autor:in)

    Erscheinungsdatum :

    2015-05-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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