Contact Detection and Monitoring of Cutting State by Acoustic Emission Technique in Ultra-Precision Turning

抄録

The objective of this study was to investigate the recognition of the cutting state and contact detection by the acoustic emission (AE) technique in ultra-precision turning. To detect the accurate cutting-edge position, the contact limit between the cutting edge and workpiece by the AE technique was investigated. Moreover, to recognize the cutting state, the change of the AE signal detected by changing the cutting condition was investigated. As a result, in the contact detection experiment, the contact between the cutting edge and workpiece was detected with a cut depth of 10 nm. In the cutting state recognition experiment, it was found that the AE signal waveform changed when the cutting state changed. It is therefore concluded that cutting-state monitoring by the AE technique is feasible.