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Journal of Materials Science: Materials in Engineering

Table 2 Process parameters and their levels

From: Parametric optimization of MRR and surface roughness in wire electro discharge machining (WEDM) of D2 steel using Taguchi-based utility approach

Process parameters

Level 1

Level 2

Level 3

Pulse on time (μs)

110

120

130

Pulse off time (μs)

30

36

42

Servo voltage (V)

20

40

60

Wire feed (m/min)

2

4

6

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