To provide a manufacturing method of a railway vehicle body structure which has a body structure with a large transmission loss capable of effectively suppressing intrusion of transmissive sound into a vehicle interior, while having high reliability and light weight.SOLUTION: In a manufacturing method of a railway vehicle body structure having an underframe forming a floor surface, side body structures erected at both end parts in a width direction of the underframe, and an upper floor panel constituting the underframe, the railway vehicle body structure has a ferrous face plate formed by a ferrous material and an aluminum bone member arranged on a vehicle interior side of the ferrous face plate and formed of an aluminum material, brings the ferrous face plate and the aluminum bone member into close contact, allows a tool of friction agitation to abut from a portion side of the closely contacted aluminum bone member, moves the tool so as to overlap a bonding line while being rotated around an axis of the tool, and performs friction stir welding on the ferrous face plate and the aluminum bone member.SELECTED DRAWING: Figure 10

    【課題】信頼性に優れ、軽量でありながら、透過音の車内への侵入を有効に抑制できる透過損失の大きい構体を備えた軌条車両構体の製造方法を提供する。【解決手段】床面をなす台枠と、前記台枠の幅方向の両端部に立設される側構体と、前記台枠を構成する上床パネルと、を有する軌条車両構体の製造方法において、前記軌条車両構体は、鉄系材料から形成された鉄系面板と、前記鉄系面板の車内側に置かれ、アルミ系材料から形成されたアルミ系骨部材と、を有しており、前記鉄系面板と前記アルミ系骨部材とを密着させ、摩擦撹拌用の工具を、密着した前記アルミ系骨部材の部位側から当接させ、前記工具の軸回りに回転させながら接合線を重ね合わせるように移動させて、前記鉄系面板と前記アルミ系骨部材とを摩擦撹拌接合する。【選択図】図10


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    Title :

    MANUFACTURING METHOD OF RAILWAY VEHICLE BODY STRUCTURE


    Additional title:

    軌条車両構体の製造方法


    Contributors:

    Publication date :

    2023-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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