A Comparison of the Frictional Losses in Hydrostatic and Conventional Extrusion Processes With Hydrodynamic Lubrication

[+] Author and Article Information
W. R. D. Wilson

Lubrication Mechanics Division, Battelle Memorial Institute, Columbus Laboratories, Columbus, Ohio

J. of Lubrication Tech 93(1), 75-78 (Jan 01, 1971) (4 pages) doi:10.1115/1.3451539 History: Received July 27, 1970; Online October 18, 2010


Experimental evidence indicates that billet die friction is higher in conventional extrusion than in hydrostatic extrusion. Simple hydrodynamic lubrication theory is used to show that this may be accounted for by the less favorable conditions for hydrodynamic lubrication in the conventional process.

Copyright © 1971 by ASME
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