Influence of tool texture on friction and lubrication in strip reduction

Mohd Hafis Bin Sulaiman, Peter Christiansen, Niels Oluf Bay

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    Abstract

    Tool texturing is studied as a method to enhance lubrication and prevent the occurrence of galling. Strip reduction test tools manufactured with longitudinal, shallow pocket geometries oriented perpendicular to the sliding direction are tested. The pockets have small angles to the workpiece surface and varying distance. The experiments show an optimum distance between the pockets to exist that creates table mountain topography with flat plateaus and narrow pockets in between. If the flat plateaus are too narrow, an increase in drawing load and pick-up on the tool plateaus is observed. The same occurs for too wide plateaus. A theoretical friction model supports the experimental findings of an optimum distance between the pockets, where the contribution to friction by mechanical interlocking of the strip in the pockets is limited and lubrication of the plateaus is enhanced by micro-plasto-hydrodynamic lubrication.
    Original languageEnglish
    JournalProcedia Engineering
    Volume207
    Pages (from-to)2263–2268
    ISSN1877-7058
    DOIs
    Publication statusPublished - 2017
    EventInternational Conference on the Technology of Plasticity (ICTP 2017) - Cambridge, United Kingdom
    Duration: 17 Sept 201722 Sept 2017

    Conference

    ConferenceInternational Conference on the Technology of Plasticity (ICTP 2017)
    Country/TerritoryUnited Kingdom
    CityCambridge
    Period17/09/201722/09/2017

    Bibliographical note

    Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

    Keywords

    • Textured tool surface
    • Lubricant entrapment
    • Mechanical interlocking
    • Friction
    • Strip reduction
    • Ironing

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