Investigation and Process Parameter Optimization on Wire Electric Discharge Machining of Aluminium 6082 Alloy

Table 7

Optimization results in surface roughness.

Run order	Actual order	Predicted value	Residual
1	3.432	3.497	−0.065
2	3.561	3.521	0.040
3	2.812	2.897	−0.085
4	3.331	3.179	0.152
5	3.286	3.192	0.094
6	3.331	3.451	−0.120
7	3.469	3.439	0.030
8	2.388	2.410	−0.022
9	2.982	3.094	−0.112
10	2.758	2.892	−0.134
11	2.106	2.180	−0.074
12	3.244	3.182	0.062
13	3.437	3.465	−0.028
14	2.959	3.089	−0.130
15	3.073	2.902	0.171
16	2.373	2.438	−0.065
17	3.498	3.469	0.029
18	2.059	1.832	0.227
19	3.332	3.448	−0.116
20	1.942	1.842	0.100
21	3.414	3.444	−0.030
22	2.425	2.207	0.218
23	3.76	3.501	0.259
24	2.384	2.398	−0.014
25	3.084	3.101	−0.017
26	2.049	2.169	−0.120
27	1.617	1.868	−0.251