Table 2: Experimental result and the calculated S/N ratio.

Number of experimentsFactorSurface roughness ()Calculated S/N ratio
ABCS1S2S3S/N S1S/N S2S/N S3

11110.66120.74180.7754
21220.8690.93740.958
31331.1381.14941.054
42130.92961.03480.9576
52211.04141.20341.0432
62321.0881.09241.1206
73120.48120.4560.5072
83230.89920.9920.9578
93311.0881.11080.9902