A new Friction and Lubrication Test for Cold Forging

Niels Bay, Ole Wibom, J Aalborg Nielsen

    Research output: Contribution to journalJournal articlepeer-review


    This paper presents a new friction and lubrication test for cold forging. The test allows controlled variation of the surface expansion in the range 0-2000%, the tool temperature in the range 20-270°C and the sliding length between 0 and infinite. Friction is decreasing with increasing temperature in the range 30-150°C. Above this temperature range friction increases. As regards lubricant performance Lubrication Limit Curves (LLC) are plotted in a sliding length-surface enlargement diagram with the tool temperature as a parameter. Larger tool temperature implies lower acceptable surface expansion and sliding length.
    Original languageEnglish
    JournalCIRP Annals : Manufacturing Technology
    Issue number1
    Pages (from-to)217-221
    Publication statusPublished - 1995


    • Forming
    • friction
    • lubrication


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