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TECHNICAL PAPERS

Automatic Simulation of a Sequence of Hot-Former Forging Processes by a Rigid-Thermoviscoplastic Finite Element Method

[+] Author and Article Information
M. S. Joun

Department of Mechanical Engineering, Gyeongsang National University, 660-701, Chinju, South Korea

H. K. Moon

Research Center, Hanwha Machinery Company, Changwon, South Korea

Rajiv Shivpuri

Department of Industrial, Welding and Systems Engineering, The Ohio State University, Columbus, OH 43214

J. Eng. Mater. Technol 120(4), 291-296 (Oct 01, 1998) (6 pages) doi:10.1115/1.2807016 History: Received January 08, 1998; Revised June 15, 1998; Online November 27, 2007

Abstract

A fully automatic forging simulation technique in hot-former forging is presented in this paper. A rigid-thermoviscoplastic finite element method is employed together with automatic simulation techniques. A realistic analysis model of the hot-former forging processes is given with emphasis on thermal analysis and simulation automation. The whole processes including forming, dwelling, ejecting, and transferring are considered in the analysis model and various cooling conditions are embedded in the analysis model. The approach is applied to a sequence of three-stage hot former forging process. Nonisothermal analysis results are compared with isothermal ones and the effect of heat transfer on predicted metal flows is discussed.

Copyright © 1998 by The American Society of Mechanical Engineers
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