An analysis of the cutting temperature for the tapping process using the tool-workpiece thermocouple method

Abstract

Temperature measurement in machining is complex, with many limitations and restrictions and these are linked to the measurement method and the process in which it will be applied. Tapping is one of the processes that imposes the most restrictions and limitations on temperature measurement methods. The chip-tool interface temperature is important data to feed numerical models and also to help in the analysis of wear problems and breakage of the cutting tap. The objective of this work is to quantify the temperatures found in tapping as a function of some process variables (cutting speed, workpiece material and cutting fluid), to understand how influential these variables are in temperature, since there are no results in the literature. for the threading process, and to show the advantages of adapting the tool-workpiece thermocouple method for the tapping process. The results show a 34% reduction in dry cutting temperature when compared to oil and emulsion conditions.