抄録
Low-frequency vibration drilling can suppress drilling temperature, and extend tool life. During low-frequency vibration drilling, there are drilling times and non-drilling times in one vibration cycle. The temperature increases during drilling and decreases during non-drilling. In this study, temperature transition of the cutting edge was simulated from the heat input caused by the cutting energy, calculated from principal cutting force and speed. To simulate the temperature change of the drill edge, the principal force acting on the cutting edge was calculated from two-dimensional cutting data. Temperature near the cutting edge was measured experimentally by embedded K-type thermocouple for verification of the simulation results. It was shown that the simulated temperature transition agreed well qualitatively with the measured results during low-frequency vibration drilling.
