Multiobjective Optimization of WEDM Parameters on the Mg-HNT-Zr Hybrid Metal Matrix Composite Using Taguchi-Coupled GRA

Table 5

Analysis of variance for MRR and Ra.

Source of variance	DF	Sum of squares		Adjusted MS	F value	P-value	%C
		Sequential	Adjusted
Material removal rate-MRR (R^2 = 0.9808, adj. R^2 = 0.9687)
HNT %	2	0.127564	0.127564	0.063782	203.46	p ≤ 0.001	48.956
Zr %	2	0.040353	0.040353	0.020177	64.36	p ≤ 0.001	15.486
P on	2	0.045791	0.045791	0.022896	73.04	p ≤ 0.001	17.576
P off	2	0.023055	0.023055	0.011527	36.77	p ≤ 0.001	8.848
WF	2	0.018788	0.018788	0.009394	29.97	p ≤ 0.001	7.210
Error	16	0.005016	0.005016	0.009394
Total	26	0.260566
Surface roughness-Ra (R^2 = 0.9985, adj. R^2 = 0.9976)
HNT %	2	1.24545	1.24545	0.62272	2556.27	p ≤ 0.001	46.670
Zr %	2	0.53957	0.53957	0.26978	1107.46	p ≤ 0.001	20.219
P on	2	0.34900	0.34900	0.17450	716.32	p ≤ 0.001	13.077
P off	2	0.46277	0.46277	0.23139	949.83	p ≤ 0.001	17.341
WF	2	0.06794	0.06794	0.03397	139.44	p ≤ 0.001	2.545
Error	16	0.00390	0.00390	0.00024
Total	26	2.66862