Isothermal Hydrodynamic Lubrication in Hydrostatic Extrusion of a Work-Hardening Material

[+] Author and Article Information
S. Thiruvarudchelvan

University of the West Indies, St. Augustine, Trinidad

J. of Lubrication Tech 101(3), 386-389 (Jul 01, 1979) (4 pages) doi:10.1115/1.3453380 History: Received May 07, 1979; Online October 20, 2010


Using a numerical method the film thickness and the pressure distribution in hydrostatic extrusion of a work-hardening material under hydrodynamic conditions are determined. A minimum or critical speed for full fluid lubrication to develop is predicted. The effect of the length of die-land on the critical speed, and the effect of speeds above the critical speed on the extrusion pressure are also presented.

Copyright © 1979 by ASME
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