Abstract: Large aviation integrated structure part is prone to distortion during machining. To assess the effect of initial residual stress in blank on the deformation, a quenching analysis of 7075 aluminum alloy is carried out by employing a sequentially coupled thermal and mechanical procedure. The changing temperature and the resultant distribution of residual stress are investigated. Furthermore, redundant material is removed from the blank which possesses quenched residual stress, and a reduced scale...

Key words: integrated structure part, quenching, initial residual stress, machining distortion