Bi-objective Optimization of Process Parameters in Electric Discharge Machining of SS630 Using Grey Relation Analysis

Table 1

Workpiece material compositions with corresponding weight.

Name of component	% of weight
Silicon (Si)	max
Nickel (Ni)	10.00-14.00
Manganese (Mn)	0.60-1.00 max
Carbon (C)	0.036-0.44 max
Chromium (Cr)	16.00-18.00
Sulphur (S)	0.030 max
Nitrogen (N)	0.10 max
Phosphorus (P)	0.05 max
Molybdenum (Mo)	2.00-3.00
Iron (Fe)	Balance