Research on Five-Axis Numerical Control Programming and Machining Technology of Micro Integral Impeller

Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019) Pub Date : 2019-11-01 DOI:10.2991/pntim-19.2019.32

Wang Zhijie, Cao Yan, Yao Hui

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Abstract

Micro integral impeller is the key component of micro aero-engine, and its machining quality will directly affect the performance of micro-engine. Aiming at the narrow flow path of the tiny integral blade, the large distortion of the blade and the large ratio of free-form surface and divided into main and double blades, the five-axis NC machining method of the micro-integral impeller is studied in this paper. The research on the five-axis NC machining method of the microintegrated impeller is carried out. Firstly, according to the structural characteristics of the micro integral impeller, the NC programming is carried out in Siemens NX software, and the obtained tool path is verified by 2D dynamic simulation and 3D dynamic simulation. Finally, the micro integral impeller is obtained through the milling test. There are no interference, overcutting, undercutting and other problems in the machining process. Thus, the correctness of the machining technology and machining method is verified. Keywords-Micro Integral Impeller; NC Programming; FiveAxis Machining; Virtual Simulation

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微型整体式叶轮五轴数控编程及加工技术研究

微型整体式叶轮是微型航空发动机的关键部件，其加工质量将直接影响到微型航空发动机的性能。针对微型整体式叶轮流道窄、叶片变形大、自由曲面比大、分主叶片和双叶片的特点，研究了微型整体式叶轮的五轴数控加工方法。对微集成叶轮的五轴数控加工方法进行了研究。首先，根据微型整体式叶轮的结构特点，在西门子NX软件中进行数控编程，并通过二维动态仿真和三维动态仿真对得到的刀具轨迹进行验证。最后通过铣削试验得到了微型整体叶轮。在加工过程中不存在干涉、过切、下切等问题。从而验证了加工工艺和加工方法的正确性。关键词:微整体式叶轮;数控编程;FiveAxis加工;虚拟仿真

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Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)

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