On the Effects of Turning Process Asymmetry on Process Dynamics

[+] Author and Article Information
B. E. Klamecki

Dept. of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455

J. Eng. Ind 111(3), 193-198 (Aug 01, 1989) (6 pages) doi:10.1115/1.3188749 History: Received November 01, 1987; Online July 30, 2009


The implications of a fundamental asymmetry in the lathe turning process are considered. The asymmetry is the directional dependence of system stiffness that exists at the cutting tool edge. Depending on tool edge displacement, the system stiffness is determined by the workpiece stiffness or the relatively much stiffer tool support structure. A one degree-of-freedom, lumped parameter model with nonlinear stiffness is constructed and subjected to a periodic forcing. Time and frequency domain analyses show that extremely complex dynamic behavior can occur in this simple system.

Copyright © 1989 by ASME
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