Tool wear presentation in ultra-precision raster fly cutting using workpiece modal frequencies

Abstract

In the present research, workpiece modal frequencies were used to present tool wear in ultra-precision raster fly-cutting (UPRFC) process. A group of experiments were carried out to investigate the relationship between workpiece modal frequencies and tool wear level. Experimental result reveal that the peak values of the workpiece modal frequencies increase with the tool wear progress, especially for the first order workpiece modal frequency. The relationship between the width of tool flank wear and the first order workpiece modal frequency is a linear relationship, this relationship is potentially used to predict tool wear progress in UPRFC.