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

Table 14

Comparison of verification test for various optimization techniques.

S.no	Output parameters		GRA	TOPSIS	TLBO
1	MRR (g/min)	Trial 1	0.00224	0.00199	0.00498
		Trial 2	0.00198	0.00221	0.00591
		Trial 3	0.00227	0.00230	0.00544
		Trial 4	0.00222	0.00204	0.00561
		Trial 5	0.00209	0.00219	0.00553
		Average	0.00216	0.00215	0.00549
2	EWR (g/min)	Trial 1	0.00055	0.00062	0.00092
		Trial 2	0.00061	0.00061	0.00190
		Trial 3	0.00057	0.00056	0.00181
		Trial 4	0.00061	0.00059	0.00199
		Trial 5	0.00062	0.00060	0.00177
		Average	0.00059	0.00060	0.00168
3	SR (μm)	Trial 1	0.77	0.79	0.82
		Trial 2	0.71	0.76	0.9
		Trial 3	0.8	0.81	0.89
		Trial 4	0.79	0.74	0.96
		Trial 5	0.75	0.78	0.95
		Average	0.76	0.78	0.90
4	ROC (mm)	Trial 1	0.14	0.15	0.16
		Trial 2	0.16	0.16	0.19
		Trial 3	0.17	0.16	0.14
		Trial 4	0.15	0.14	0.15
		Trial 5	0.15	0.13	0.19
		Average	0.15	0.15	0.17
5	θ (deg)	Trial 1	0.1089	0.1102	0.0910
		Trial 2	0.1099	0.1099	0.0891
		Trial 3	0.1101	0.1097	0.0852
		Trial 4	0.1089	0.1096	0.0888
		Trial 5	0.1095	0.1092	0.0869
		Average	0.1095	0.1097	0.0882
6	CIR (mm)	Trial 1	0.0308	0.0308	0.0301
		Trial 2	0.0281	0.0314	0.0210
		Trial 3	0.0313	0.0306	0.0202
		Trial 4	0.0304	0.0279	0.0289
		Trial 5	0.0335	0.0328	0.0221
		Average	0.0308	0.0307	0.0245
7	CYL (mm)	Trial 1	0.0121	0.0128	0.0152
		Trial 2	0.0132	0.0123	0.0159
		Trial 3	0.0129	0.0120	0.0182
		Trial 4	0.0115	0.0112	0.0181
		Trial 5	0.0122	0.0128	0.0170
		Average	0.0124	0.0122	0.0169