The invention provides a manufacturing method of a welding part, the welding part, a manufacturing method of a vehicle chassis and the vehicle chassis, and belongs to the technical field of rail transit equipment. The welding part comprises a plurality of parts. The manufacturing method of the welding part comprises the steps that the target size of each part is determined according to the reference size of each part, the assembly relation of each part and the welding shrinkage amount; each part is correspondingly machined according to each target size; and all the parts are connected througha welding process to form the welding part. According to the manufacturing method, the precision and reliability of the welding part can be improved.

    本公开提供了一种焊接件的制作方法及焊接件、车辆底架的制造方法及车辆底架,属于轨道交通装备技术领域。该焊接件包括多个零件,该焊接件的制造方法包括:根据各零件的参考尺寸、各零件的装配关系和焊接收缩量,确定各个零件的目标尺寸;根据各个目标尺寸对应地加工各个零件;通过焊接工艺将各个零件连接,以形成焊接件。该制造方法能提高焊接件的精度和可靠性。


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    Title :

    Welding part and manufacturing method thereof, and vehicle chassis and manufacturing method thereof


    Additional title:

    焊接件及其制造方法、车辆底架及其制造方法


    Contributors:
    SUN HELI (author) / HAN SIYUAN (author) / LI GANG (author)

    Publication date :

    2020-07-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B23K Löten , SOLDERING OR UNSOLDERING / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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