The use of HSLA dual phase steel is an effective method of reducing bumper weight while meeting ever increasing government performance requirements. A paper analysis, followed by a hardware evaluation, successfully substituted 'dual phase' for conventional HSLA steel at a reduced thickness. Bumpers for the all-new 1979 Cadillac Eldorado were designed and released using dual phase steel with yield strengths of 70-80 ksi for the face bars. Production problem were overcome by modifications of mechanical properties and increased development experience with this steel. To achieve the full work-hardening potential of dual phase steel, bumper sections and draw dies must be designed for a uniform strain greater than three percent. Future dual phase steel for bumpers in the 80-120 ksi range is desirable, but further improvements in steel-making technology and part and die design techniques are required to achieve this goal. (DePo)


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    Titel :

    Dual phase steel production bumpers


    Weitere Titelangaben:

    Verbundstahl fuer die Fertigung von Stossstangen


    Beteiligte:
    Mantey, H.H.L. (Autor:in) / Burton, F.T. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1979


    Format / Umfang :

    11 Seiten, 25 Bilder, 8 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Dual Phase Steel Production Bumpers

    Burton, Fred T. / Mantey, Harvey H. L. | SAE Technical Papers | 1979


    Dual phase steel production bumpers

    Mantey,H.H. / Burton,F.T. / General Motors,Cadillac,US | Kraftfahrwesen | 1979


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