Li C.,Beijing Institute of Aviation Material |
Zhang K.,Beijing Institute of Aviation Material |
Ru J.-G.,Beijing Institute of Aviation Material |
Dai S.-L.,Beijing Institute of Aviation Material
Suxing Gongcheng Xuebao/Journal of Plasticity Engineering | Year: 2013
Constitutive equations in creep forming of pre-aged 7050 aluminum alloys were applied in FEM analysis by the secondary development of ABAQUS software. The results showed that constitutive equations developed in this paper were suitable for the analysis of pre-aged 7050 age forming processes. Moreover, stress relaxations and creep strains increased with the higher age temperature, and the residual stress level and springback decreased with increase of creep forming.