Aiming to improve the machining quality of compressor blade of aeroengine

the influencing factors of blade machining are analyzed

including processing plan and geometric modeling before machining

the problems of deformation and stability during machining

the residual stress after machining. For the inevitable existence of machining error

the probability statistics method is presented in the paper. In detail

the statistical analysis method of contour error and airfoil parameters error in the key region of blade is established. With the help of aerodynamic experiments

the error distribution of the key parameters under stable condition is found to provide the theoretical basis for guiding the specific blade processing.