The mechanical properties of 7085 aluminum alloy have been obtained by high temperature tensile
test. The quenching process of 7085 aluminum alloy aircraft forging with frame and beam structure has been simulated by FEM code ABAQUS. The influence of different quenching technologies on the magnitude and distribution of quenching residual stress has been investigated. The results show that the residual stresses of the forging are mainly concentrated on the interface of the rib and web with the characteristics of external compressive and inner tensile. The quenching temperature has significant influence on the magnitude of residual stress, and improvement of quenching
temperature is beneficial to decreasing the residual stress. The solution treatment temperature, the method of entering water and the transfer time for large鄄size aircraft forging with frame and beam structure have little effect on residual
stress.