Research Article

Optimization of Forging Process Parameters and Prediction Model of Residual Stress of Ti-6Al-4V Alloy

Table 3

Orthogonal test schemes.

Test no.FactorsTest index
TDSσ (MPa)

11 (925)1 (30)1 (10)14.5
21 (925)2 (40)2 (50)18.3
31 (925)3 (50)3 (100)18.1
41 (925)4 (60)4 (500)17.4
51 (925)5 (70)5 (1000)18.9
62 (950)1 (30)2 (50)12.1
72 (950)2 (40)3 (100)15.3
82 (950)3 (50)4 (500)15.4
92 (950)4 (60)5 (1000)14.3
102 (950)5 (70)1 (10)20.8
113 (975)1 (30)3 (100)11.8
123 (975)2 (40)4 (500)11.4
133 (975)3 (50)5 (1000)11.8
143 (975)4 (60)1 (10)19.7
153 (975)5 (70)2 (50)18.5
164 (1000)1 (30)4 (500)9.79
174 (1000)2 (40)5 (1000)9.04
184 (1000)3 (50)1 (10)10.7
194 (1000)4 (60)2 (50)10.7
204 (1000)5 (70)3 (100)11
215 (1025)1 (30)5 (1000)8.04
225 (1025)2 (40)1 (10)8.58
235 (1025)3 (50)2 (50)9.22
245 (1025)4 (60)3 (100)8.83
255 (1025)5 (70)4 (500)9.2