Research status and development trend of cutting surface integrity of aerospace alloy materials

The manufacturing of critical structural components for aerospace applications needs to meet high-reliability requirements, and surface integrity is one of the key factors to evaluate the quality of machined surfaces. In the aerospace field, difficult-to-machine metal materials such as nickel-based superalloys, titanium alloys, and tungsten alloys have a wide range of applications due to their excellent properties such as high hardness and high strength. Firstly, the latest results of the research on the geometrical characteristics of the integrity of machined surfaces and the physical and mechanical properties of surface layers by domestic and foreign scholars have been systematically reviewed; the influence of cutting parameters, tool wear values, and tool geometry parameters on the formation mechanism of surface integrity have been comprehensively described. Secondly, the influences of compound machining technology on the surface integrity of aerospace materials are sorted out, and the achievements in predicting and controlling the surface integrity of cutting aerospace materials are introduced. Finally, the research results on the influence of cutting surface integrity on the operating properties of parts have been summarized, and the future development trend of the research on cutting surface integrity of aerospace materials has been prospected.