On-Line Estimation of Tool/Chip Interface Temperatures for a Turning Operation

[+] Author and Article Information
J. G. Chow

Clarkson University, Potsdam, NY 13676

P. K. Wright

Carnegie-Mellon University, Pittsburgh, PA 15213

J. Eng. Ind 110(1), 56-64 (Feb 01, 1988) (9 pages) doi:10.1115/1.3187843 History: Received August 30, 1987; Online July 30, 2009


This research has been concerned with the measurement of on-line temperature in a turning operation. The goal has been to develop a measurement sensor and algorithms that allow tool-chip interface temperatures to be estimated during machining. The measuring scheme relies on the signal from a standard thermocouple, located at the bottom of the tool insert, the response time of which has been observed to be on the order of one second. The important feature of the prediction scheme is that it can also estimate the interface temperatures for an interrupted cut and for the case when tool wear is present. The estimated interface temperatures have been compared with those obtained with a previously described metallographic technique [1] and a difference of 5–13 percent between these two results has been reported.

Copyright © 1988 by ASME
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