Abstract: To improve the milling efficiency and the quality of integrated impeller of TC6 titanium alloy in aeroengine, the orthonormal experiment was carried out The effects of geometry parameters of ball nose end milling on the surface hardness of machined part and flank ware ( VB ) of tools were studied and analyzed The result shows that principals of the rational geometry parameters between the 3D freeform surface and the plane are different The milling technique for TC6 integrated impeller was pressented based on the experiment.

Key words: Aircraft engine;Integrated impeller;Milling;Numerically controlled machining;Titanium alloy

摘要： 为提高 TC6钛合金航空发动机整体叶轮零件曲面数控铣削效率与加工质量 ,采用正交实验方法 ,研究并分析了球头立铣刀几何参数对零件切削表面硬化层及其后刀面磨损的影响 ,发现三维曲面铣削时刀具合理几何参数的取值趋向与平面铣削刀具不同的现象 ,并依此提出了切实可行的 TC6航空发动机整体叶轮零件数控铣削工艺

关键词: 航空发动机;整体叶轮;铣削;数控加工;钛合金