This paper discusses the elements which affect the efficiency of CNC devices.Then give some advice to elevate the efficiency.It presents the idea of caculating the interpolating before actual cutting.

• 分析了影响数控机床加工效率的因素，随后给出了提高其效率的几种方法，着重考虑了把插补计算提前进行的可能和这样做的好处。