Simulation for polished surface roughness of aeroengine blade considering abrasive tool vibration

Complex curved blade is the key rotating structure of aeroengine. Its surface quality determines the aerodynamic performance and service life of aeroengine. In this paper, considering the abrasive tool vibration, the surface morphology of polished blade is simulated by MATLAB software, and the polished surface roughness is obtained from the surface morphology. The simulation results show that the abrasive tool vibration has no effect on the polished surface roughness in the direction perpendicular to the polishing track, but it will increase the polished surface roughness in the polishing direction. The polished surface roughness decreases with the increase of linear speed and mesh number of abrasive particle, and increases with the increase of feed speed and polishing depth. The mesh number of abrasive particles has the greatest influence on the polished surface roughness, followed by the polishing depth. The feed speed and linear speed have the least influence on the polished surface roughness. Considering the abrasive tool vibration, the accuracy of polished surface roughness obtained by simulation is higher, which has guiding significance for the selection of polishing process parameters.