Texture evolution of FCC sheet metals during deep drawing process

The stability of ideal orientations and texture evolution was investigated for FCC sheet metals during deep drawing. Lattice rotation fields around id eal orientations were numerically predicted using a rate-sensitive polycrys tal model with full constraint boundary conditions. In order to evaluate th e strain path during deep drawing of an AA1050, simulations using a finite element analysis were carried out. The stability of orientations and textur e formation was examined at sequential paths such as flange deformation, tr ansition and wall deformation. Depending on the initial location in the bla nk, the deviation from the plane strain state in the flange deformation pat h decreased the orientation density around P {0 1 1}[8 11 <(11)over bar>] a nd shifted the final stable end orientation from P to Y-f near {1 1 1} [<(1 1)over bar> 2]. The texture evolution in AA1050 sheet metals during deep dr awing was experimentally investigated. The change of orientation density ar ound ideal orientations in the RD and TD samples was in good agreement with the rate-sensitive polycrystal model. (C) 2000 Elsevier Science Ltd. All r ights reserved.