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

Table 2

Box–Behnken design of C18150 feed for a product diameter of 8 mm.

S. no	Wheel velocity (rpm)	Feedstock temperature (°C)	Die temperature (°C)	Friction factor
1	4	600	500	0.95
2	8	600	500	0.90
3	12	600	600	0.90
4	8	600	400	0.85
5	8	500	500	0.95
6	12	600	500	0.85
7	12	600	400	0.90
8	8	600	500	0.90
9	8	700	600	0.90
10	8	700	400	0.90
11	4	500	500	0.90
12	12	500	500	0.90
13	12	600	500	0.95
14	4	600	400	0.90
15	8	600	400	0.95
16	12	700	500	0.90
17	8	500	500	0.85
18	8	600	600	0.85
19	4	700	500	0.90
20	4	600	600	0.90
21	8	600	600	0.95
22	8	600	500	0.90
23	8	700	500	0.95
24	8	700	500	0.85
25	8	500	600	0.90
26	4	600	500	0.85
27	8	500	400	0.90