Three-Dimensional Finite Element Analysis on Open-Die Block Forging Design

[+] Author and Article Information
Chinghua Hung, Shiro Kobayashi

Department of Mechanical Engineering, University of California—Berkeley, Berkeley, CA 94720

J. Eng. Ind 114(4), 459-464 (Nov 01, 1992) (6 pages) doi:10.1115/1.2900698 History: Received March 01, 1991; Online April 08, 2008


Three-dimensional rigid-plastic finite element method was used to analyze the practice of open-die block forging, focusing on the effects of die configurations and forging pass designs. Four combinations of die configurations were investigated: conventional flat dies, top flat/bottom V-shaped dies, and double V-shaped dies with 120 and 135 deg included angles. Two different pass designs, 90 and 180 deg rotation angles between succeeding passes, were applied to each die set. The results include the magnitude and distribution of effective strains along the center line of the cylindrical workpiece and the final shape of the workpiece. Good agreement was observed in comparison with experimental data from physical modeling method, and several suggestions were made for choosing suitable dies.

Copyright © 1992 by The American Society of Mechanical Engineers
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