The invention discloses an automobile suspension trailing arm body and a manufacturing method, and belongs to the technical field of automobile part machining. The suspension trailing arm body comprises a bent part with protruding structures on the front face and the back face, a hole I used for being connected with a shaft is formed in one end of the bent part, the other end of the bent part is arranged to be of a U-shaped structure, and holes II used for fixing are formed in the two parallel sections of the U-shaped structure. The manufacturing method comprises the steps that a steel plate is sequentially subjected to plate shearing, blanking and punching, drawing forming, flanging and shaping, punching, flanging and hole flanging, trimming and punching and acid pickling, and the suspension trailing arm body is obtained. According to the automobile suspension trailing arm body, the overall structure is optimized, technological parameters in the manufacturing process are strictly controlled, and further, the stress value and the deformation problem are further reduced or eliminated through acid pickling, so that the automobile suspension trailing arm body which is moderate in strength, uniform in structure and stable in performance is obtained, and the quality detection requirement is met; and the method is suitable for popularization and application in industry.

    本发明公开了一种汽车悬架纵臂本体及制造方法,属于汽车零部件加工技术领域。悬架纵臂本体包括正、反两面均设有凸起结构的弯曲部,弯曲部的一端设有用于连接轴的孔Ⅰ,弯曲部的另一端设成U型构造,U型构造的两个平行段上均设置有用于固定的孔Ⅱ。其制造方法为:将钢板依次进行剪板,落料冲孔,拉延成型,翻边整形,冲孔,翻边翻孔,修边冲孔,再酸洗,即得。本发明的汽车悬架纵臂本体,通过对整体结构进行优化,以及严格控制制造工序中的工艺参数,并进一步通过酸洗,以降低或消除应力值和变形问题,从而得到强度适中、结构均匀、性能稳定的汽车悬架纵臂本体,满足质量检测要求,在工业上适于推广应用。


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    Title :

    Automobile suspension trailing arm body and manufacturing method


    Additional title:

    一种汽车悬架纵臂本体及制造方法


    Contributors:
    LIU WEN (author) / WU GUOGUO (author)

    Publication date :

    2020-10-16


    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 / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS , Reinigen oder Entfetten metallischer Werkstoffe durch chemische Verfahren, ausgenommen Elektrolyse



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