Experimental Investigations of Nano Finishing Process on Nickel-Free Austenitic Stainless Steel by Grey Relational and Principal Component Analysis

Table 6

Validation of optimised results.

Optimised input process variables			Validation experiments	Responses
Pressure (bar)	Current (A)	NOC		SR (nm)	% difference	MRR (mg/sec)	% difference
30	6	300	1	62.28	−1.52	2.28	−2.56
			2	63.29	0.08	2.36	0.85
			3	62.28	−1.52	2.29	−2.14
			4	61.14	−3.32	2.34	−0.00
			5	63.18	−0.09	2.33	−0.43