Table 3 Experimental results using the copper tool.

From: Comparative analysis of copper and graphite electrodes in EDM of Al–SiC metal matrix composites

Run order

Variables

Responses

I

(A)

TON

(µs)

TOFF

(µs)

MRRCopper (gm/min)

TWRCopper

(gm/min)

1

7

30

4

0.134

0.0025

2

9

10

4

0.190

0.0041

3

9

30

6

0.204

0.0038

4

9

50

4

0.189

0.0042

5

5

10

4

0.041

0.0005

6

7

30

4

0.130

0.0025

7

7

10

6

0.110

0.0015

8

5

30

2

0.064

0.0010

9

7

10

2

0.010

0.0027

10

7

30

4

0.123

0.0025

11

5

50

4

0.057

0.0005

12

9

30

2

0.205

0.0043

13

5

30

6

0.060

0.0004

14

7

50

2

0.122

0.0020