The invention discloses a high-strength front longitudinal beam assembly which comprises a front longitudinal beam formed by welding a front longitudinal beam inner plate and a front longitudinal beamouter plate, the front longitudinal beam is welded to a front wall side inner plate, the front longitudinal beam inner plate is formed by welding at least two sections of a first inner plate and a second inner plate in the length direction, and the second inner plate is welded to the front wall side inner plate; and the first inner plate and the second inner plate respectively correspond to the crumple area and the safety area of the front longitudinal beam. By the adoption of the forming method, the front longitudinal beam inner plate is divided into at least two sections in the length direction, the size needing to be machined when the front longitudinal beam part made of the high-strength material is formed is reduced, and machining and forming of the part are facilitated; in addition,the first inner plate and the second inner plate with different strengths can be obtained through different material selection or different heat treatment modes; the first inner plate is located in the crumple area of the front longitudinal beam, the second inner plate is located in the safety area of the front longitudinal beam, and therefore the requirements for the structural strength of the two inner plates are different, machining can be convenient when the two inner plates are divided into two different parts, and machining cost is reduced.

    本发明公开了一种高强度的前纵梁总成,包括由前纵梁内板和前纵梁外板焊接而成的前纵梁,前纵梁焊接在前围侧内板上,前纵梁内板在长度方向至少由第一内板和第二内板两段焊接而成,第二内板焊接在前围侧内板上;第一内板和第二内板分别对应前纵梁的溃缩区和安全区。采用本发明,将前纵梁内板沿长度方向分为至少两段,减少由高强度材料制成的前纵梁零部件成型时需加工的尺寸,方便零件的加工成型;此外,可通过选材的不同或热处理方式的不同得到不同强度的第一内板和第二内板;第一内板位于前纵梁的溃缩区,第二内板位于前纵梁的安全区,因此对二者的结构强度要求不同,分成不同的两个零件时,可方便加工,降低加工成本。


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    Title :

    High-strength front longitudinal beam assembly


    Additional title:

    一种高强度的前纵梁总成


    Contributors:
    HUANG HONGQUAN (author) / YU ZHE (author) / WANG XIAOQING (author) / JU HUAGUANG (author)

    Publication date :

    2020-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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