The invention provides a manufacturing method of a body frame and a body frame, which do not depend on countermeasures based on material upgrading, reinforcer and plate thickness increase and the like, and can easily ensure the tolerance load required by the body frame. A manufacturing method of a body frame (10) includes a pre-strain step of press molding a wavy shape portion in the body frame (10) to apply pre-strain after any press molding to mold the body frame (10).

    本发明提供一种车架的制造方法和车架,不依赖于基于材料的升级、加强件及板厚增加等的对策,而容易确保车架所要求的耐受载荷。在车架(10)的制造方法中,在用于对车架(10)进行成型的任意一次冲压成型之后,进行冲压成型出赋予预应变的波形形状(21)的预应变工序。


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    Title :

    Manufacturing method of body frame and body frame


    Additional title:

    车架的制造方法和车架


    Contributors:

    Publication date :

    2020-09-22


    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 / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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