Table 2 Characteristics of workpiece materials.

From: Geometric influence and multi-objective optimization of WEDM for hardened tool steels using ANN and NSGA-II

Properties (Units)

D2 steel

DC53 steel

Density (g/cm3)

7.7

7.87

Melting point (oC)

1421

1421

Thermal expansion (10–6/ oC)

10.4

11.2

Hardness rockwell (HRC)

40–42

40–42

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