Estimation of Dynamic Forces in Very High-Speed Impact Forging

[+] Author and Article Information
M. J. Hillier

Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario

J. Eng. Ind 88(4), 369-372 (Nov 01, 1966) (4 pages) doi:10.1115/1.3672663 History: Received June 30, 1965; Online December 08, 2011


A study is made of three methods of estimating die loads in impact forging: By approximate solution of the equations of equilibrium; by an energy method, assuming plane sections remain plane; and using the energy method in association with a kinematically admissible velocity field. Results are given for die pressures and die loads for axisymmetric and plane-strain forging of disks and slabs with smooth dies, perfectly rough dies, and for the case of Coulomb friction.

Copyright © 1966 by ASME
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