RESEARCH PAPERS: Papers on Production Engineering

Formability Limits of Relatively Thick Sheet Metal as Determined by the Fukui Conical Cup Test

[+] Author and Article Information
J. C. Gerdeen

Michigan Technological University, Houghton, Mich. 49931

A. Daudi

Manufacturing Development, Motor Wheel Corporation, Lansing, Mich. 48914

J. Eng. Ind 105(4), 276-281 (Nov 01, 1983) (6 pages) doi:10.1115/1.3185899 History: Received June 16, 1983; Online July 30, 2009


A plastic stress analysis was made of the conical cup problem using the maximum shear stress criterion. Limiting diameter ratios were determined for both perfect lubrication and friction conditions. A fixture was designed and constructed for 6.0-in. (15.24-cm) diameter blanks up to 0.20 in. (0.508 cm) in thickness. Experiments were conducted with strains determined by the circular grid method.

Copyright © 1983 by ASME
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