Abstract
A method to measure local temperature of the cutting tool face is proposed in this research. A fine platinum or constantan insulated wire is embedded in ceramic or carbide tools respectively, to form a thermo couple with chip. The temperature distribution curve shows the same pattern, in spite of the difference of the tool material, the work, and the cutting conditions. The local temperature goes up as the distance from the cutting edge increases, but it reaches the maximum at a certain point, close to the end of tool-chip contact. It is also found that the rate of crater wear depends not only on temperature but also on distance from the cutting edge of tool. The farther from cutting edge of tool, the lower the rate of crater wear at certain temperature.
