Abstract
This research furnishes a key for monitoring the tool wear in the diamond turning of the electroless Ni–P plating layer. Since the tool wear can be classified into the chipping and attrition wear of the cutting edge, the acoustic emission and cutting force have been analyzed. From the experimental results, the following has been discovered: (1) The scaling exponent of AE amplitude distribution becomes smaller than 2, when the chipping occurs. (2) The 1/f β noise generates in the thrust force, when the edge recession distance increases. Consequently, it is highly probable to monitor the tool wear.