Measurement of Friction in Cold Upsetting with Mist Lubrication

DOI Web Site Web Site 2 Citations 16 References

Search this article

Abstract

The coefficient of friction during upsetting under semi-dry conditions is measured using the ring compression test. A small amount of mist lubricant is sprayed onto the mirror surfaces of cemented tungsten carbide (WC) tools, and pure aluminium specimens are compressed by the tools. It is found that spraying a small amount of lubricant (0.5 g/m2) reduces the friction effectively. The roughness of the workpieces after compression increases as the amount of the lubricant increases to Ra = 0.20—1.0 μm which is in the same order as the lubricant film thickness. Mist lubrication results in very small dots of lubricant particles sticking to the tool surface, and the lubrication mechanism of mist lubricant is discussed.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 45 (9), 2891-2896, 2004

    The Japan Institute of Metals and Materials

Citations (2)*help

See more

References(16)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top