Table 4 N-EDM variance analysis.

From: Machining characteristics and process parameter optimization of Near-dry electrical discharge milling of titanium alloy

Source

Freedom

MRR

variance analysis

REWR

variance analysis

WOC

variance analysis

Ra

variance analysis

F-valued

P-valued

F-valued

P-valued

F-valued

P-valued

F-valued

P-valued

Peak current

2

46.08

0.000

3.39

0.056

3.39

0.056

22.61

0.000

Duty ratio

2

1.40

0.273

2.69

0.095

1.29

0.299

0.82

0.459

Gas pressure

2

0.14

0.87

1.72

0.208

0.63

0.545

6.07

0.009

Atomization quantity

2

1.79

0.195

3.75

0.044

6.13

0.009

2.46

0.114

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