Optimization of Deformation Behaviors during Continuous Forming Extrusion of C18150 Copper Alloy through Response Surface Methodology

Table 9

ANOVA effective stress to extrude C18150 alloy.

Obs.	Std. order	Effective stresses	Fit	SE fit	Residual	Standard residuals	F-value	value
1	16	1356.000	1355.833	0.481	0.167	0.41	7393.07	0.000
2	15	1391.000	1390.667	0.481	0.333	0.82	3566.56	0.000
3	11	1416.000	1416.333	0.481	−0.333	−0.82	1839.20	0.000
4	24	1413.000	1413.125	0.481	−0.125	−0.31	77.76	0.000
5	8	1424.000	1423.542	0.481	0.458	1.13	419.20	0.000
6	27	1398.000	1398.000	0.363	0.000	0.00	11243.65	0.000
7	13	1321.000	1321.167	0.481	−0.167	−0.41	7905.42	0.000
8	17	1369.000	1368.792	0.481	0.208	0.51	9822.32	0.000
9	5	1451.000	1450.708	0.481	0.292	0.72	4185.47	0.000
10	6	1401.000	1400.208	0.481	0.792	1.95	1900.00	0.000
11	1	1406.000	1405.708	0.481	0.292	0.72	5941.89	0.000
12	10	1431.000	1430.667	0.481	0.333	0.82	8737.89	0.000
13	19	1479.000	1479.792	0.481	−0.792	−1.95	0.63	0.442
14	7	1354.000	1354.042	0.481	−0.042	−0.10	26026.74	0.000
15	26	1398.000	1398.000	0.363	0.000	0.00	5115.79	0.000
16	2	1384.000	1383.875	0.481	0.125	0.31	9094.74	0.000
17	18	1448.000	1447.958	0.481	0.042	0.10	3094.74	0.000
18	14	1406.000	1406.333	0.481	−0.333	−0.82	9094.74	0.000
19	23	1353.000	1352.958	0.481	0.042	0.10
20	21	1424.000	1424.625	0.481	−0.625	−1.54
21	22	1414.000	1414.792	0.481	−0.792	−1.95
22	12	1439.000	1439.000	0.481	0.000	0.00
23	4	1409.000	1408.542	0.481	0.458	1.13
24	25	1398.000	1398.000	0.363	0.000	0.00
25	9	1498.000	1498.000	0.481	0.000	0.00
26	20	1355.000	1355.958	0.481	−0.958	−2.36 R
27	3	1432.000	1431.375	0.481	0.625	1.54

R denotes an observation with a large standardized residual.