An investigation is reported of the temperatures and energy partition for machining of granites with diamond grinding wheel and segmented saw blade. Temperature responses in the cutting zone were measured simultaneously using a two-color infrared detector and a pair of constantan-iron foils. The energy partition to the granite was estimated using temperature matching technique. Measured temperature responses either from the infrared detector or from the foil thermocouple were found to be in good agreement with analytical predictions for a mvoing heat source with a triangular distribution at the cutting zone. The foil thermocouple should be fast enough to detect the temperature response in the process of sawing. The energy partition to the granite was much lower than that in grinding of such materials as ceramics and steels.
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