A two-dimensional cutting simulation model of high speed high temperature alloy GH4169 was established by using ABAQUS finite element analysis software,and the cutting process was simulated.The stress change and distribution in the cutting process,the effects of cutting speed and cutting depth on stress distribution,residual deformation and cutting force at cutting end were obtained.The results show that the maximum equivalent stress of the first deformation zone varies little in different cutting stages of the cutting process.The cutting speed has little influence on the stress distribution at the cutting end of the workpiece.The larger stress distribution area increases obviously with the increase of cutting depth.Plastic extension deformation will be formed at the cutting end of the workpiece after the cutter cut out of the workpiece.When the cutting speed is low,the plastic extension length is large,while when the cutting speed is high,it is small.The plastic extension length increases with the increase of cutting depth.The cutting force F_x increases with the increase of cutting speed and depth.The cutting force F_y increases with the increase of cutting depth,but cutting speed has little effect on F_y.The effect of cutting depth on F_x is greater than cutting speed.