RESEARCH PAPERS: Mechanisms Papers

On the Mechanics of Micro-Thin Foil Production

[+] Author and Article Information
E. G. Thomsen

University of California Study Center at Göttingen, Germany

H. H. Thomsen

Georg August Universität, Gottingen, Germany

J. Eng. Ind 95(3), 803-808 (Aug 01, 1973) (6 pages) doi:10.1115/1.3438229 History: Received April 07, 1972; Online July 15, 2010


The mechanics of micro-thin foil or leaf production by hammering has been analyzed. It was found that the metal foil cannot be reduced by a compression process alone because of the large impact loads that would be required, due to interfacial friction between the foil and the separating paper sheets. It is demonstrated that a likely mechanism is a plastic stretching process of the metal combined with relatively large elastic stretching of the paper due to the Poisson effect when a blow is struck. The actual mechanism is probably a combination of stretching and slipping of the metal.

Copyright © 1973 by ASME
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