Abstract
The tool workpiece-type thermocouple is practical, inexpensive and provides an indication of temperature trends in the tool-chip-workpiece interface. These temperatures also correlate with tool wear. Using this sensor system, a novel method for predicting functional lifetime in tool parts has been developed. In this paper, an extended Taylor's functional relationship was determined based on measurements of the tool work temperature. This method allows prediction of tool life based on a tool-work thermocouple temperature with a few traditional tool-wear experiments. To confirm the reliability of the proposed temperature-based method of tool-life prediction, the traditional tool-life testing methods are applied using standard experimental procedures for exploring tool-to-surface responses.
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