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RESEARCH PAPERS

Friction and Lubrication Effects in Open Die Impact Forging

[+] Author and Article Information
C. E. Cruff

Engineering, Manufacturing R&D, Methods and Process Developments, Pratt & Whitney Aircraft, East Hartford, Conn.

C. C. Reynolds

Materials Engineering, Worcester Polytechnic Institute, Worcester, Mass.

J. of Lubrication Tech 97(1), 14-17 (Jan 01, 1975) (4 pages) doi:10.1115/1.3452524 History: Received February 19, 1974; Online October 18, 2010

Abstract

A horizontal forging machine, Impacter, was used to determine coefficients of friction under different conditions of forging 1020 steel and 2014 T-4 aluminum. Short cylinders were open die forged with repeated blows and the reduction of height determined for one to eight blows. The area under a calculated forging force versus reduction curve was related to available energy in the impellers so that a theoretical reduction for each blow could be determined for different coefficients of friction.

Copyright © 1975 by ASME
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