A bead forming method includes the steps of preparing a bumper stay 10 having a partition wall 12 that partitions an internal space and extends in a longitudinal direction, an elastic body 40 that can be inserted into the bumper stay 10, and a pusher 61 that presses the elastic body 40; inserting the elastic body 40 into the bumper stay 10 and arranging the elastic body 40 in the bumper stay 10 so as not to come into contact with the partition wall 12; and forming a buckling bead 11a by compressing the elastic body 40 in the longitudinal direction of the bumper stay 10 by the pusher 61 to expand the elastic body 40 outward in a radial direction without coming into contact with the partition wall 12, thereby bulging a part of an outer wall 11 of the bumper stay 10 outward in the radial direction without deforming the partition wall 12.


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    Title :

    BEAD FORMING METHOD AND STRUCTURE MEMBER


    Additional title:

    VERFAHREN ZUR WULSTBILDUNG UND STRUKTURELEMENT
    PROCÉDÉ DE FORMATION DE PERLE ET ÉLÉMENT DE STRUCTURE


    Contributors:

    Publication date :

    2022-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge



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