Table 7.

Experimental Results for Tool Insert Wear, Observed and Predicted Signal-to-Noise (S/N) Ratios for Tool Wear.

Experimental serial number	Cutting speed V (m/mm)	Feed rate f (mm/rev)	Cutting depth a (mm)	Tool wear Ymax Mean (µm)	Ymax S/N (µm)
1	80	0.05	0.2	227.089	− 47.1239
2	80	0.10	0.4	201.712	− 46.0946
3	80	0.15	0.6	232.031	− 47.3109
4	100	0.05	0.4	195.657	− 45.8299
5	100	0.10	0.6	209.539	− 46.4253
6	100	0.15	0.2	170.286	− 44.6236
7	120	0.05	0.6	215.970	− 46.6879
8	120	0.10	0.2	143.500	− 43.1370
9	120	0.15	0.4	142.375	− 43.0687