Abstract
This paper describes a model for predicting cutting tool temperatures under transient
conditions. It is applicable to processes such as contour turning, in which the cutting
speed, feed rate, and depth of cut may vary continuously with time. The model is
intended for use in process development and trouble shooting. Therefore, emphasis
is given in the model development to enable rapid computation and to avoid the need
to specify parameters such as thermal contact resistances and convection coefficients
which are not known in practice. Experiments were conducted to validate the predictive
model. The model predictions with two different boundary conditions bound
the experimental results. An example is presented which shows the utility of the model
for process planning.