From: Incremental forming process strategy variation analysis through applied strains
Hollomon formula
kf = 564 · φ0,2
Yield Stress (kf 0)
kf 0 = 186MPa
Anisotropy
r 0°
1.16
r 45°
1.52
r 90°
1.69
r m
1.47
Δr
-0.09