Manufacturing of Nanostructured Rings from Previously ECAE-Processed AA5083 Alloy by Isothermal Forging

Table 1

Design factors and response variables for the preform DOE, where the values in bold correspond to the optimal geometry selected.

Draft angle α (°)	Flash thickness 𝑒 (mm)	Fillet radii 𝑟 (mm)	Force (kN)	Damage	Strain
10	2	1.5	1815	0.25	1.7
20	2	1.5	1360	0.1	1.5
10	4	1.5	825	0.15	1.6
20	4	1.5	720	0.1	1.7
10	2	3	990	0.1	1.3
20	2	3	500	0.15	1.2
10	4	3	580	0.1	1.3
20	4	3	440	0.15	1.2
15	3	2.25	825	0.1	1.5
15	3	2.5	750	0.125	1.4
15	3	3	600	0.125	1.2
15	4	3	520	0.125	1.2