抄録
For indirect sensing of the crater wear of diamond cutting tool, features of the cutting force relating to the wear are investigated. The ultra-precision diamond turing experments show that the dynamic compornent of cutting force change from random to chaotic, when the crater wear develops. Since the change can be detected by calculating the time-lag until the autocorrelation function of the cutting force becomes to 0, this feature extraction is useful for the tool wear monitoring.
