In this study, the Acoustic Emission (AE) signal was monitored during metal cutting process in order to investigate feasibility of in-process tool wear sensing and to guess tool changing time for various cutting conditions.
From measured data, it is observed that the averaged level of AE signal increases at first with an increase of flank wear to a certain critical value, and then stays almost constant with further increase of the flank wear. Also, when the averaged level of AE signal reaches to a certain critical value, the flank wear land reaches to 0.19~0.24 mm.
Therefore, it is expected that the monitoring of AE signal can be used to inprocess tool wear sensing and to guess the appropriate tool changing time in metal cutting process.
