Contact Detection and Condition Monitoring of Cutting Tool on Micro-Turning Process by AE Sensing

Abstract

It is very difficult to apply conventional sensing technology to the monitoring of cutting state on micro-machine tools because of microscopic phenomena. Especially, time and effort are required for the coordinate system setting on super-precision micro-machine tools. In this study, basic experiments on the contact detection and condition monitoring of cutting tool for micro-machine tools were performed by acoustic emission sensing. As a result, it was found that a contact detection of cutting tool is possible with a precision of 0.1 μm. Also, adhesion of a workpiece material to a tip of cutting tool can be identified.