[Retracted] Green Machining Characteristics Study of Al-6063 in CNC Milling Using Taguchi Method and Grey Relational Analysis

Table 11

Grey relational analysis-dry runs.

Exp	Dry runs		Normalization		Deviation sequence		Coefficients		Grade	Rank
	Ra	MRR	Ra	MRR	Ra	MRR	Ra	MRR
1	0.91	0.787	0.901	0.694	0.099	0.306	0.835	0.621	0.728	4
2	1.59	1.293	0.454	0.413	0.546	0.587	0.478	0.460	0.469	6
3	2.28	2.038	0.000	0.000	1.000	1.000	0.333	0.333	0.333	9
4	0.88	0.632	0.921	0.780	0.079	0.220	0.864	0.695	0.779	3
5	1.63	1.378	0.428	0.366	0.572	0.634	0.466	0.441	0.454	7
6	2.05	1.987	0.151	0.028	0.849	0.972	0.371	0.340	0.355	8
7	0.76	0.236	1.000	1.000	0.000	0.000	1.000	1.000	1.000	1
8	0.79	0.345	0.980	0.940	0.020	0.060	0.962	0.892	0.927	2
9	1.49	0.989	0.520	0.582	0.480	0.418	0.510	0.545	0.527	5