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

Table 2

Machining factors and levels (WEDM).

Factors	Codes	Level 1	Level 2	Level 3
HNT %	A	0	6	11
Zr %	B	0	0.6	1
Pulse on time (μs)	C	10	11	12
Pulse off time (μs)	D	15	16	17
Wire feed (m/min)	E	4	5	6