同时结合对实际加工中成形运动控制的分析，提出了采用3 B代码编程，利用逐点比较法插补原理的成形运动控制技术。
Through analyzing control of the shaped movements in processing, the control technology of the shaped movements, which adopted point-by-point interpolation via 3b code, was introduced.
本文介绍了逐点比较法插补圆弧的运算过程，并对逐点比较法插补圆弧的算法进行了改进，为数控系统插补软件的设计提供了参考。
This paper introduced the algorithm process by using point by point comparing method, improved algorithm of interpolation arc, and provided a design method of NC system interpolation software.
逐点比较法是轮廓插补算法之一，曾在数控机床中被广泛采用，但由于它存在不能实现两轴联动的缺点，限制了其应用。
Point-by-point Comparison interpolation is one method of the contour interpolation algorithms, ever used widely in CNC machine tools, but its being not to realize two-axis limits its application.
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