Upper-Bound Solutions to Tube Extrusion Problems Through Curved Dies

[+] Author and Article Information
K. T. Chang, J. C. Choi

Korea Institute of Science and Technology, Seoul, Korea

J. Eng. Ind 94(4), 1108-1111 (Nov 01, 1972) (4 pages) doi:10.1115/1.3428311 History: Received July 09, 1971; Online July 15, 2010


Velocity fields of tube extrusion problems through curved dies are presented for an incompressible material. These velocity fields are also applicable to conical and square-cornered dies. Thus, in principle, upper bound solutions for tube extrusion problems through arbitrarily shaped dies are obtained. As an illustration, tube extrusion processes through conical dies of small cone angle have been treated. Effect of die geometry and friction is presented graphically.

Copyright © 1972 by ASME
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