Table 2 N-EDM factor level table.

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

Serial number

Factor

Unit

Level

1

2

3

A

Peak current

A

2

4

6

B

Duty ratio

%

40

50

60

C

Gas pressure

MPa

0.2

0.3

0.4

D

Atomization quantity

ml/min

10

15

20

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