Blisk flexible grinding and polishing machining process for improving outer surface roughness

The invention belongs to the field of blisk, particularly relates to a blisk flexible grinding and polishing machining process capable of improving the outer surface roughness, and aims to solve the problems that the roughness is increased and very high surface stress concentration is caused due to tool connecting textures generated by existing flexible grinding and polishing, and the tool connecting textures directly become a fatigue source and is one of important reasons for causing fatigue failure cracks. According to the following scheme, the process comprises the following steps that the appearance of a flexible grinding tool is optimized through theoretical calculation and simulation analysis according to the reason for the tool connecting textures generated by flexible grinding and polishing, so that the grinding tool is more suitable for grinding and polishing machining of a blisk/blade type complex free-form surface. According to the process, the shape of the flexible grinding tool is optimized, the