压气机叶片高性能切削加工技术研究进展

The high thrust-to-weight ratio of aero-engine imposes higher requirements on the anti-fatigue manufacturing of aero-engine compressor blades. As an important method of blade material reduction manufacturing, cutting processing directly affects the surface integrity of the blade when ensuring the geometric accuracy of the blade. Extensive studies have shown that blade surface integrity is closely related to its fatigue performance. At present, the primary blade metal materials are lightweight and high-strength titanium alloys and superalloys. Since titanium alloys and superalloys are typical thermo-mechanical sensitive materials, and there is a very complex force-heat energy field in the cutting process, the surface integrity of blades is significantly affected. Therefore, to explore the future development of anti-fatigue cutting technology of aero-engine compressor blade, this study begins by summarizing the development of blade surface and the underlying causes of fatigue failures during the cutting process. Secondly, the domestic and abroad research status of anti-fatigue cutting technology of aero-engine blades for non-bionic and bionic surface blades is investigated and sorted out. Finally, the problems existing in anti-fatigue cutting of blades are summarized, and the future development trend of anti-fatigue cutting research of aero-engine blades is prospected. This study provides a theoretical reference for the machining of aero-engine blades for anti-fatigue performance optimization.