A Dual-Mechanism Approach to the Prediction of Machining Forces, Part 2: Calibration and Validation

[+] Author and Article Information
W. J. Endres, R. E. DeVor, S. G. Kapoor

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL

J. Eng. Ind 117(4), 534-541 (Nov 01, 1995) (8 pages) doi:10.1115/1.2803531 History: Received October 01, 1993; Revised August 01, 1994; Online January 17, 2008


The Dual-Mechanism Machining Force Model (DMMFM) developed in Part 1 of this paper is calibrated through a specially developed algorithm, then validated. The calibration results are used to study the total machining force predictive capabilities of both the traditional lumped shearing model and the DMMFM. It is shown that the Dual-Mechanism Approach contributes greatly to our ability to both physically explain the trends in the machining force data and to understand their implications. This is achieved through an interpretation of the individual rake face and clearance face forces that are predicted using the DMMFM. The interpretation is based on the relations of these rake face and clearance face forces to the process inputs resulting from their effects on the DMMFM coefficients through thermal energy generation and temperature, shear-strain level and shear-strain rate. Some implications of the knowledge of the individual rake face and clearance face forces, as predicted by the DMMFM, are also discussed.

Copyright © 1995 by The American Society of Mechanical Engineers
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