Research Article

Optimization of Processing Parameters in ECM of Die Tool Steel Using Nanofluid by Multiobjective Genetic Algorithm

Table 2

Process parameters.

Applied voltage (V)12, 15, and 18
Interelectrode gap (mm)0.1
Tool feed rate (mm/min)0.1, 0.21, 0.32, and 0.54
Electrolyte discharge rate (lit/min)8, 10, and 12
Selected electrolyte15% NaNO3 aqueous solution
40 g copper nanoparticles suspended in 15% NaNO3 aqueous solution
Tool-electrode conditionStationary
Electrolyte temperature range (°C)30°–40°
Workpiece material with its hardness HCHCr die steel—67 HRc
Machining time (min)3