航空发动机钛材料磨削技术研究现状及展望

钛材料主要指钛合金、钛铝金属间化合物和钛基复合材料，具有密度低、强度高、抗氧化与蠕变性能好等优异特性，在航空发动机领域具有广泛应用前景。钛材料属于典型的难加工材料。磨削是高效精密加工钛材料的重要方法，可以获得良好的加工精度和表面质量。首先概述了钛材料在航空发动机中的应用及其磨削工艺技术总体情况。随后，从磨削力与磨削温度、砂轮磨损、材料去除机理、表面完整性等方面阐述了钛材料磨削技术的研究进展，并总结了针对钛材料磨削关键问题提出的新工艺和新方法。最后，对钛材料磨削技术未来的研究方向进行了展望。

Research status and future development of grinding technology of titanium materials for aero-engines

Titanium materials, including titanium alloys, titanium alumina intermetallics, and titanium matrix composites, have broad applications in aero-engine industry for their outstanding properties such as low density, high strength, excellent oxidation, and creep resistance. However, titanium materials are the typical difficult-to-machine materials. Grinding is an important method for high-efficiency and precision machining of titanium materials, which could produce good machining accuracy and surface quality. This paper firstly outlines the application statues of titanium materials in aero-engines and the development of its grinding operation. Then, the research advances on grinding technology of titanium materials are reviewed from the aspects of grinding force and temperature, abrasive tool wear, material removal rates, and surface integrity, followed by a summary of new methods and technologies proposed for solving some critical problems in grinding titanium materials. Finally, the prospect of future research on grinding of these titanium materials is proposed.