To provide a press molded product manufacturing method which shortens a weld time and can improve productivity.SOLUTION: A laminated blank 10 is formed in such a manner that a body steel plate 1 and a reinforcement steel plate 2 are joined and are overlapped by performing laser welding of overlapped part 3 of the body steel plate 1 and the reinforcement steel plate 2. This laminated blank 10 is heated to a temperature equal to or higher than an austenite transformation temperature, whereby the laminated blank 10 is transformed into austenite. The laminated blank 10, which has been transformed into austenite, is press-molded by a metal mold 6, and at the same time, is quickly cooled to be transformed into a martensite, thereby forming the press molded product.SELECTED DRAWING: Figure 1

    【課題】溶接時間を短縮し、生産性を向上させることができるプレス成形品の製造方法を提供する。【解決手段】本体鋼板1と補強鋼板2との重ね合わせ部3をレーザー溶接することにより、本体鋼板1と補強鋼板2を接合して重ね合わせブランク10を形成する。この重ね合わせブランク10をオーステナイト変態温度以上の温度に加熱することにより重ね合わせブランク10をオーステナイトに変態せしめる。そして、オーステナイトに変態された重ね合わせブランク10を金型6でプレス成形すると同時に急冷してマルテンサイトに変態せしめることにより、プレス成形品を形成する。【選択図】図1


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    Titel :

    PRESS MOLDED PRODUCT MANUFACTURING METHOD


    Weitere Titelangaben:

    プレス成形品の製造方法


    Beteiligte:
    SHIMIZU TAICHI (Autor:in) / IWANUMA TADASHI (Autor:in)

    Erscheinungsdatum :

    15.10.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    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 / B23K Löten , SOLDERING OR UNSOLDERING / B62D MOTOR VEHICLES , Motorfahrzeuge



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