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RESEARCH PAPERS

Theoretical Analysis of Heat Partition and Temperatures in Grinding

[+] Author and Article Information
Y. Ju, T. N. Farris

School of Aeronautics and Astronautics, Purdue University, 1282 Grissom Hall, West Lafayette, IN 47907-1282

S. Chandrasekar

School of Industrial Engineering, Purdue University, 1287 Grissom Hall, West Lafayette, IN 47907-1287

J. Tribol 120(4), 789-794 (Oct 01, 1998) (6 pages) doi:10.1115/1.2833780 History: Received January 30, 1997; Revised March 25, 1998; Online January 24, 2008

Abstract

A theoretical analysis is presented of heat partition and surface temperatures for the grinding of hardened steel with both aluminum oxide and CBN wheels. The numerical predictions of the model are shown to agree with experimental results available in the literature. It is found that heat partition varies over a wide range depending on grinding conditions. Also, heat partition is a strong function of position inside the grinding zone. The presence of the fluid inside the grinding zone can reduce the heat flux into the workpiece and the workpiece temperature significantly. For typical grinding of steel with CBN wheels, or creep feed grinding of steel with aluminum oxide or CBN wheels, it is possible to keep the fluid active and therefore to reduce thermal damage. However, the analysis suggests that the fluid may not be effective inside the grinding zone, in the conventional grinding of steel with aluminum oxide, due to boiling.

Copyright © 1998 by The American Society of Mechanical Engineers
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