Contact conditions in skin-pass rolling

Hideo Kijima, Niels Bay

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The special contact conditions in skin-pass rolling of steel strip is analysed by studying plane strain upsetting of thin sheet with low reduction applying long narrow tools and dry friction conditions. An extended sticking region is estimated by an elasto-plastic FEM analysis of the plane strain upsetting. This sticking region causes a highly inhomogeneous elasto-plastic deformation with large influence of work-hardening and friction. A numerical analysis of skin-pass rolling shows the same contact conditions, i.e. an extended sticking region around the center of the contact zone. The calculated size of the sticking region with varying contact length and pressure/reduction is experimentally verified by plane strain upsetting tests measuring the local surface deformation of the work pieces after unloading.
    Original languageEnglish
    JournalC I R P Annals
    Volume56
    Issue number1
    Pages (from-to)301-306
    ISSN0007-8506
    DOIs
    Publication statusPublished - 2007

    Keywords

    • rolling
    • skin-pass rolling
    • friction

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