Hydrodynamic Lubrication of Hydrostatic Extrusion

[+] Author and Article Information
W. R. D. Wilson, S. M. Mahdavian

Department of Mechanical and Aerospace Engineering, University of Massachusetts, Amherst, Mass.

J. of Lubrication Tech 98(1), 27-31 (Jan 01, 1976) (5 pages) doi:10.1115/1.3452766 History: Received June 26, 1975; Online October 20, 2010


An analytical model for the hydrodynamic lubrication of hydrostatic extrusion is developed. This includes the effect of viscous heating on the film formation process and the effect of viscous and plastic heating on the friction and film thickness variation in the work zone. Theoretical predictions of film thickness and extrusion pressure show good agreement with experimental measurements for aluminum billets lubricated with castor oil.

Copyright © 1976 by ASME
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