The invention discloses a variable-thickness automobile door ring and a preparation method thereof, and belongs to the technical field of automobile manufacturing. Variable-thickness rolled plate blanking is adopted to obtain a component plate, and the component plate is prepared into the variable-thickness automobile door ring through a laser welding technology; wherein the cross section of the variable-thickness rolled plate is variable, the thickness of the plate changes in the rolling direction, and the equal-thickness plating layer is thinned into the variable-thickness plating layer after being rolled. A surface coating of the component plate obtained through blanking does not need to be subjected to ablation and removal treatment in the welding process. The light weight of the vehicle and the door ring is achieved, and meanwhile safer design is achieved; in stress scenes of vehicle collision, rollover, jacking and the like, the structural strength of the door ring is better, the problems of breakage and the like are not prone to occurring, and the safety of a driver and a passenger is protected; a plating layer is not treated in laser welding, welding seams are not prone to oxidation, the quality is better, the number and weight of patch plates, reinforcing plates and other related parts are reduced, procedures are reduced, tool clamps are saved, the manufacturing period is shortened, the production efficiency is improved, the cost is saved, and the safety performance is improved.

    一种变厚度汽车门环及其制备方法,所属汽车制造技术领域,本发明采用变厚度轧制板下料得到构件板,构件板通过激光焊接技术制备变厚度汽车门环;其中,变厚度轧制板的横截面为变截面,板厚沿轧制方向变化,等厚度镀层轧制后减薄为变厚度镀层。下料得到的构件板在焊接过程无需对表面镀层进行消融、去除处理。实现车辆及门环轻量化的同时,实现更安全的设计;在车辆碰撞、侧翻、顶压等受力场景中,门环结构强度表现更好,不易发生断裂等问题,加强保护驾乘用户安全;激光焊接不处理镀层,焊缝不易氧化、质量更好,减少补丁板、加强板等相关零件数量及重量,减少工序,节约工装夹具,缩短制造周期,提高生产效率,节省成本,提升安全性能。


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    Titel :

    Variable-thickness automobile door ring and preparation method thereof


    Weitere Titelangaben:

    一种变厚度汽车门环及其制备方法


    Beteiligte:
    LIU HONGJIE (Autor:in) / ZHANG GUANGJI (Autor:in) / SU FANG (Autor:in) / LUO HUIYE (Autor:in)

    Erscheinungsdatum :

    15.12.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B23K Löten , SOLDERING OR UNSOLDERING / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B62D MOTOR VEHICLES , Motorfahrzeuge



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