Analysis of Transient Temperatures in Grinding

[+] Author and Article Information
C. Guo, S. Malkin

Department of Mechanical Engineering, University of Massachusetts, Amherst, MA 01003

J. Eng. Ind 117(4), 571-577 (Nov 01, 1995) (7 pages) doi:10.1115/1.2803535 History: Received September 01, 1993; Revised September 01, 1994; Online January 17, 2008


Temperatures generated in the workpiece during straight surface plunge grinding follow a transient behavior as the grinding wheel engages with and disengages from the workpiece, and throughout the entire grinding pass for workpieces which are shorter than needed to reach a quasi-steady state condition. In the present paper, a thermal model is developed for the transient temperature distribution under regular and creep-feed grinding conditions. Numerical results obtained using a finite difference method indicate that the workpiece temperature rises rapidly during initial wheel-workpiece engagement (cut in), subsequently reaches a quasi-steady state value if the workpiece is sufficiently long, and increases still further during final wheel-workpiece disengagement (cut out) as workpiece material is suddenly unavailable to dissipate heat. Cooling by a nozzle directed at the end face of the workpiece should significantly reduce the temperature rise during cut out.

Copyright © 1995 by The American Society of Mechanical Engineers
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