Optimization on Material Removal Rate and Surface Roughness of Stainless Steel 304 Wire Cut EDM by Response Surface Methodology

Table 7

Results obtained from experiment.

Exp. no.	Input process parameter
	Pulse on time(T-on),µs		Pulse off time (T- off),µs		Peak current(IP), amps
	Coded	Actual	Coded	Actual	Coded	Actual
1	1	125	0	53	0	190
2	0	115	1	63	0	190
3	0	115	0	53	0	190
4	0	115	−1	43	0	190
5	−1	105	1	63	−1	170
6	0	115	0	53	1	210
7	1	125	−1	43	1	210
8	0	115	0	53	−1	170
9	0	115	0	53	0	190
10	0	115	0	53	0	190
11	0	115	0	53	0	190
12	−1	105	−1	43	−1	170
13	1	125	1	63	1	210
14	−1	105	0	43	0	190
15	1	125	−1	43	−1	170
16	−1	105	−1	43	1	210
17	0	115	0	53	0	190
18	0	115	0	53	0	190
19	1	125	1	63	−1	170
20	−1	105	1	63	1	210