In order to study the distribution of residual stress of compressor blades after rolling. The finite element method was used to simulate the residual stress distribution under different pressure rates

friction coefficients and rolling speeds. The influence of the process parameters on the residual stress of the rolling surface and surface layer of the blade was analyzed. X-ray diffraction was used to measure the residual stress of the blade surface and surface layer under different rolling processes and compare it with the simulated results. The orthogonal center combination test results were used to establish the residual stress prediction model for convex and concave

and the significance of the prediction model was verified with the Design-Expert test. The results show that within a certain parameter range

the fluctuation amplitude of the residual stress of the blade decreases gradually with the increasing of pressure rate

but the value gradually increases. With the increasing of friction coefficient and rolling speed

the residual compressive stress amplitude of convex and concave increases. With the increasing of friction coefficient and rolling speed

the distribution amplitude of residual stress at different depths also show increasing trend. The research results have the practical value for optimizing the blade processing technology.