Simulation and Measurement of Chatter in Diamond Turning

[+] Author and Article Information
E. R. Marsh, D. S. Yantek

Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802

M. A. Davies, D. E. Gilsinn

Automated Production Technology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899

J. Manuf. Sci. Eng 120(2), 230-235 (May 01, 1998) (6 pages) doi:10.1115/1.2830118 History: Received January 01, 1997; Revised July 01, 1997; Online January 17, 2008


This paper considers chatter in diamond turning of aluminum. A nonlinear chip area model is developed for use with the classic single degree of freedom cutting model. The chip area model is formulated as a function of the change in depth of cut between consecutive passes. This function is shown to be highly dependent on the quadratic term when turning the diameter of cylindrical workpieces with round-nosed diamond tools. The cutting model is further extended to include an impact disturbance to the cutting process. The recent research in ultra-precision machining is incorporated to properly account for the rise in specific cutting energy at extremely light depths of cut. Simulations of the resulting tool displacement show close agreement with experimental measurements.

Copyright © 1998 by The American Society of Mechanical Engineers
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