Backward can extrusion with conical,rotating punch as a cold forging tribology test

Ermanno Ceron, Niels Bay, A. Tetsuo, K. Dohda

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    541 Downloads (Pure)

    Abstract

    A new, simulative test of friction and lubrication in cold forging is developed by the authors. The test is based on a backward can extrusion process in which the workpiece rotates. An analytical model is presented determining the friction stress from the measured torque during testing combined with an analysis of the sliding velocity distribution along the punch nose. The latter is determined by FE analysis of the test. Results show friction stress for unalloyed low C-steel provided with different types of lubricants, e.g. phosphate coating plus soap, phosphate coating plus MoS2 and single bathe lubrication with PULS. The new test is so severe, that it is possible to break down the best lubrication systems for cold forging, such as phosphate coating plus soap and MoS2.
    Original languageEnglish
    Title of host publication44th ICFG (International Cold Forging Group) Plenary Meeting
    Publication date2011
    Pages187-193
    Publication statusPublished - 2011
    Event44th Plenary Meeting of the International Cold Forging Group - Sønderborg, Denmark
    Duration: 11 Sept 201114 Sept 2011

    Conference

    Conference44th Plenary Meeting of the International Cold Forging Group
    Country/TerritoryDenmark
    CitySønderborg
    Period11/09/201114/09/2011

    Keywords

    • Limits of Lubrication
    • Friction
    • Cold Forging

    Fingerprint

    Dive into the research topics of 'Backward can extrusion with conical,rotating punch as a cold forging tribology test'. Together they form a unique fingerprint.

    Cite this