采用成形铣削加工叶轮型面，保证了加工精度，提高了生产效率。
The application of process of vane wheel profile forming can ensure the machining accuracy and improve the productive efficiency.
以nsr - 40型罗茨鼓风机的三叶扭叶叶轮为例，详细阐述了这种叶轮型面在车削加工中心的加工方法、工艺和数控编程。
Taking NSR_40 Roots blower as an example, the processing ways, technics and NC program of this twist tri_lobe profile on the lathe machining center is set forth in detail.
以nsr - 40型罗茨鼓风机的三叶扭叶叶轮为例，详细阐述了这种叶轮型面在车削加工中心的加工方法、工艺和数控编程。
Taking NSR_40 Roots blower as an example, the processing ways, technics and NC program of this twist tri_lobe profile on the lathe machining center is set forth in detail.
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