Electrical Discharge Machining of Al (6351)-5% SiC-10% B₄C Hybrid Composite: A Grey Relational Approach

Table 6

Confirmation test.

	Output response
Level	Initial	Predicted	Experimental
	𝐼=10 A, 𝑇on=50 𝜇s, 𝜏=4, 𝑉=40 V	𝐼=5 A, 𝑇on=50 𝜇s, 𝜏=6, 𝑉=45 V	𝐼=5 A, 𝑇on=50 𝜇s, 𝜏=6, 𝑉=45 V
Grey relational grade	0.49	0.75	0.78
Improvement in grade	—	0.26	0.29