Comparative Study on EDM Parameter Optimization for Adsorbed Si₃N₄–TiN using TOPSIS and GRA Coupled with TLBO Algorithm

Table 1

Experimental input parameters.

Variables	Symbols	Units	Levels
			1	2	3	4	5
Pulse current	I	amps	4	6	8	10	12
Pulse-on time	PON	μsec	5	6	7	8	9
Pulse-off time	POFF	μsec	2	4	6	8	10
Dielectric pressure	DP	kg/cm^2	12	14	16	18	20
Spark gap voltage	SV	Volts	28	30	32	34	36