Critical review of hot stamping technology for automotive steels

D. W. Fan, Han S. Kim, S. Birosca, B. C. De Cooman

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Hot stamping is an alternative technology to produce ultra high strength steels for automotive parts that has received much attention recently. In this paper the physical metallurgy principles of the hot stamping process are reviewed. The effect of composition on CCT curves of hot stamping steels is discussed taking deformation during press forming into account. Moreover the thermo-mechanical behavior of press hardenable B-added CMn steel is reviewed in detail. The influence of temperature, cooling rate, strain and strain rate on the flow stress are discussed. The issues related to coatings on B-alloyed CMn hot stamping steel are also critically reviewed. Finally, the properties of both Zn-based and Al-based coating systems are compared, and the possibility of the in situ formation of a diffusion barrier during press forming is discussed.

    Original languageEnglish
    Title of host publicationMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
    Pages98-109
    Number of pages12
    Volume1
    Publication statusPublished - 1 Sept 2007
    EventMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems" - Detroit, MI, United States
    Duration: 16 Sept 200720 Sept 2007

    Publication series

    NameMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
    Volume1

    Conference

    ConferenceMaterials Science and Technology Conference and Exhibition, MS and T'07 - "Exploring Structure, Processing, and Applications Across Multiple Materials Systems"
    Country/TerritoryUnited States
    CityDetroit, MI
    Period16/09/0720/09/07

    Keywords

    • Boron steel
    • Hot stamping
    • Martensitic steel
    • Press hardening

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