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

Table 5

Results of ANOVA.

Input parameters	DOF	Sum of squares (SS)	Mean sum of squares (MS)	Contribution (%)	𝐹-ratio
Pulse current	2	0.05634	0.02817	83.94	948.31
Pulse on time	2	0.00737	0.00368	10.99	124.14
Pulse duty factor	2	0.00147	0.00073	2.20	24.85
Voltage	2	0.00139	0.00069	2.07	23.43
Error	18	0.00053	0.00003	0.80
Total	26	0.06713