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RESEARCH PAPERS

Theoretical and Experimental Study of the Glass Lubricated Extrusion Process

[+] Author and Article Information
P. Baqué, J. Pantin

Groupe ENSMP-ENSTA, “GMX”, Paris, France

G. Jacob

Ste Cefilac, Person, Paris

J. of Lubrication Tech 97(1), 18-23 (Jan 01, 1975) (6 pages) doi:10.1115/1.3452525 History: Received March 08, 1974; Online October 18, 2010

Abstract

The Ugine-Séjournet patent for glass lubrication of metals extrusion made it possible to extrude steel in large quantities. A cold pad of glass powder inserted between the die and the billet head melts progressively, providing a high viscosity glass film between the die and the metal. The authors propose a theoretical model of the lubrication mechanism: progressive melting, hydrodynamic flow, and stability of the film. The influence of process parameters is discussed and results are compared with experimental measurements.

Copyright © 1975 by ASME
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