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Table 12 Confirmation test and comparison with the results

From: Parametric optimization of powder mixed electrical discharge machining for nickel-based superalloy inconel-800 using response surface methodology

Machining Conditions

MRR (mm3/min)

TWR (mm3/min)

S. No

Current, A (amp)

Ton, B (μs)

Toff, C (μs)

Tool material

Powder

Exp. value

Predicted value

Error (%)

Exp. value

Predicted value

Error (%)

1

4

90

60

Cu-Cr

Co

4.35

3.93

9.88

0.017

0.016

5.88

2

8

60

45

Cu

WC

13.29

14.41

-8.42

0.024

0.026

-8.33

3

12

120

45

Gr

Co

35.79

35.34

1.25

0.28

0.25

8.57