中文摘要：

目前国内航空制造业对钛合金铣削刀具的选择仍缺少系统的评价方法，往往造成实际加工过程中刀具成本增加、加工质量不稳定、加工效率低下等问题。为此，根据航空钛合金结构件的工艺特点，应用模糊数学理论构建了面向航空钛合金结构件粗精加工的铣削刀具性能的模糊综合评判模型；设计了考虑航空钛合金结构件典型难加工特征的基准件，制定相应的加工工艺并进行铣削加工试验；最后应用所构建的模糊综合评判模型进行了刀具性能评判。结果表明，所构建的模糊综合评判模型可以快捷、有效地评判刀具性能，为航空钛合金结构件铣削刀具的合理选择与刀具性能的综合评判提供了一条新途径。

英文摘要：

There was a lack of systematic method to evaluate cutting tool performance in domestic aviation manufacturing industries till now,which resulted in a increasing of cutting tools cost,unstable machining quality and low machining efficiency etc.Considering the processing characteristics of avia-tion titanium alloy components,comprehensive fuzzy evaluation models of cutting tool performance for rough and finish milling were established based on fuzzy mathematical method.A testing benchmark with some typical difficult-to-machine features extracted from aviation complex integrated components was designed,and its processing route was developed.Finally,experiments of milling the benchmark were carried out,and then the comprehensive fuzzy evaluation models were used to evaluate the mill-ing tools.The results show that the models are convenient and effective to evaluate milling tools per-formance,which provides a new method for the selection and evaluation of milling tools.