A metal pipe includes a pair of side walls facing each other and having a height H, a top portion connected to an upper edge of each of the pair of side walls, and a bottom portion connected to a lower edge of each of the pair of side walls. The metal pipe has a length six times the height H of the side walls or more. Each side wall pair includes a high-strength portion and a pair of low-strength portions, the low strength portions sandwiching the high strength portion. A high-strength portion dimension is not less than ⅔H and not more than 3H as measured longitudinally of the metal pipe, the high-strength portions forming opposite portions of the side wall pairs. The low-strength portion yield strength is 60 to 85% of that of the high-strength portion, whose yield strength is not less than 500 MPa.


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    Titel :

    Metal pipe and structural member using metal pipe for vehicle


    Beteiligte:
    HIROSE SATOSHI (Autor:in) / ISHIMORI YUICHI (Autor:in) / FUKUCHI HIROSHI (Autor:in)

    Erscheinungsdatum :

    19.11.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / B62D MOTOR VEHICLES , Motorfahrzeuge



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