Die Shape Optimal Design in Bimetal Extrusion by the Finite Element Method

[+] Author and Article Information
S. M. Byon, S. M. Hwang

Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), P. O. Box 125, Pohang 790-600, Korea

J. Manuf. Sci. Eng 119(2), 143-150 (May 01, 1997) (8 pages) doi:10.1115/1.2831089 History: Received February 01, 1995; Revised July 01, 1995; Online January 17, 2008


A new approach to die shape optimal design in bimetal extrusion of rods is presented. In this approach, the design problem is formulated as a constrained optimization problem incorporated with the finite element model, and optimization of the die shape is conducted on the basis of the design sensitivities. The approach is applied to the determination of the optimal die shapes for several combinations of the core and sleeve materials.

Copyright © 1997 by The American Society of Mechanical Engineers
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