On exterior automotive body panels it is generally accepted that the substitution of a bake hardening, BH grade of steel for a drawing quality special killed, DQSK grade improves the dent resistance performance. However, the amount of performance improvement varies depending on the specific body panel and the loading conditions applied. The objective of this study was to quantify and define the key factors related to the dent resistance performance difference. Specifically, body panels of the same part and outer panel gage, one BH the other DQSK, were compared based on the load required to produce a visible dent and the resulting dent depth. While the results were specific to the panel tested, the key factors to be considered when comparing BH and DQSK panels were identified.


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    Title :

    Bake hardening steel application study - key factors of dent resistance improvement


    Additional title:

    Eine Studie über warmausgehärtetes Stahlblech - Schlüsselfaktor für die Verbesserung des Eindrückwiderstndes


    Contributors:
    Seel, T.N. (author)

    Published in:

    Publication date :

    1991


    Size :

    9 Seiten, 6 Bilder, 7 Tabellen, 12 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Dent-resistant bake-hardening steels for automotive outer-body applications

    Pradhan,R. / Bethlehem Steel,US | Automotive engineering | 1991


    Dent-resistant bake-hardening steels for automotive outer-body applications

    Pradhan,R. / Bethlehem Steel,US | Automotive engineering | 1990