Three kinds of model are concluded according to five-axis NC machining.
根据五坐标数控机床的运动形式，将其归结为三种基本形式。
Based on viewpoint of post-processing, non-linear error of five-axis NC machining was analyzed and its influencing factors were presented.
从后处理的角度，分析了五轴数控加工的非线性误差，指出了其影响因素；
Therefore, in order to improve the performance of compressor, it is necessary to accomplish the high accuracy five-axis nc machining of centrifugal compressor impeller.
因此，有必要开展离心压气机叶轮五轴高精度数控加工技术的研究，以期进一步提高压气机的性能。
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