Temperature in drilling is an important concern for both tool life and workpiece quality. The experimental measurement of such quantity can be made by means of the insertion of a thermocouple in the drill core or by focusing a pyrometer onto the bottom part of the specimen. Both this techniques can be performed by using complex experimental set-up. In this paper a 2-D model is presented which uses the finite volume approach in order to evaluate the thermal field inside the tool and the workpiece, with boundary conditions based on the experimental results of torque acquired during drilling tests. The model has been calibrated by using experimental data of temperature measured at the exit side of the specimen and with comparison with literature data.
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