Research on regulation of cutting temperature variation during cutting titanium alloy TC4

The temperature of cutting area was divided into temperature of chip, temperature of machined surface and temperature of tool in the simulation of machining titanium alloy TC4. The simulation results indicated that the highest temperature of the chip, the highest temperature of the machined surface and the highest temperature of the tool were increased with the cutting speed increasing. But sometimes the measured cutting temperature would increase first then decrease with cutting speed increasing due to the different changing rate of cutting temperature or different sampling period and different response rate of the measuring equipment if the measuring points were selected at the chip or the machined surface. The result of the Salomon's hypothesis would not occur during machining if the measuring point was selected at the tool.