Tribological interactions and modelling of friction in hot stamping

Jenny Venema

    Research output: ThesisPhD Thesis - Research external, graduation UT

    265 Downloads (Pure)

    Abstract

    Hot stamping is a forming process used in the automotive industry to form structural
    parts. A sheet metal blank is austenitized in a furnace, formed at high temperatures (600-
    800 °C) and quenched in the press such that a martensitic structure is obtained. In this
    way, high strength (~1500 MPa) can be combined with good formability and good
    geometrical tolerances. However, due to forming at high temperatures, the friction is
    relatively high and tool wear is severe. The tool wear causes scratches on the parts,
    leading to lower heat transfer and high maintenance costs.
    In this thesis, the friction and wear mechanisms in hot stamping are addressed and a
    physics-based multi-scale friction model is coupled with FE analysis.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • University of Twente
    Supervisors/Advisors
    • van den Boogaard, Antonius H., Supervisor
    • Hazrati Marangalou, Javad , Co-Supervisor
    Award date25 Sep 2019
    Place of PublicationEnschede
    Publisher
    Print ISBNs978-90-365-4817-5
    DOIs
    Publication statusPublished - 25 Sep 2019

    Keywords

    • Hot stamping
    • Tribology
    • Friction
    • Wear
    • Sheet metal forming
    • FE analysis

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