Abstract
Although it is essential to know the cutting temperature in turning operations, it is very complex to measure it by direct procedures because of the contact tool-workpiece is not accessible. In this research, a methodology consisting of a natural thermocouple, built from the contact tool-workpiece, has been validated. For that, it was necessary to measure the temperature of a reference point on the tool rake face and to probe the results by FEM. Three different materials were experimented getting to a good agreement between the real values of the temperature and those obtained by simulation. Particularly, the range of measurement was defined for the Ti-aluminides machining by uncoated WC inserts. In addition, taking into consideration the correlations obtained between the temperatures of the flank contact tool-workpiece and of the tool rake face and the wearing in the flank, the evolution of this last variable would be known.
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