Abstract
The cutting temperature in the ultra-high precision diamond fly cutting of copper is discussed based on the experimental data. The cutting temperature and the temperature rise in the workpiece are measured with the thermocouple of copper and constantan wire. The temperature distributions in the workpiece are also analysed by employing the finite difference method and the calculated results are compared with the experimental results. The following results are obtained. (1) The cutting temperature reaches to 200°C or more during the diamond cutting. (2) The temperature rise in the workpiece is in the range of 0.1-2°C under the cutting conditions tested. The workpiece temperature increases with increases in the cutting speed, the feed rate and the depth of cut. (3) The temperature distributions in the workpiece calculated are in good agreement with those measured.
