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.
本文以轧辊零件的数控车削加工为例，介绍弧形零件的数控编程方法和技巧。
This paper introduced the NC programing method and its skill with the example of the NC machining of the roller part.
介绍了几种循环车削加工工艺如锥体、球体等数控编程技巧。
Some NC programming skills of loop cutting on cone and sphere parts were Introduced.
介绍了米制梯形螺纹车削加工用户宏程序的编制和简单调用的方法，对提高数控机床的使用性能有很大的帮助，对其它非标螺纹的编程也具有一定的借鉴意义。
To improve the performance of NC machine tool, the paper introduces the method of custom macro programming technique and simple call on transfer process of the metric system ACME screw thread.
从四弧逼近法和宏程序编程方法两方面对数控车削椭圆曲线的精加工和粗加工进行了探讨。
Finishing machining and rough machining for numeric control turning ellipse curve are investigated through four arc approximation method and the macro program method.
该系统根据数控车削加工的特点实现了数控源程序编辑、代码检验解释、加工过程仿真等功能，在计算机上实现了数控车削编程和仿真加工的全过程。
This system can realize editing of CNC codes, explaining of program codes, and simulation of cutting process. CNC programming and simulation are done completely by the computer.
该系统根据数控车削加工的特点实现了数控源程序编辑、代码检验解释、加工过程仿真等功能，在计算机上实现了数控车削编程和仿真加工的全过程。
This system can realize editing of CNC codes, explaining of program codes, and simulation of cutting process. CNC programming and simulation are done completely by the computer.
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