对于偏距加工和行切加工都可以使用螺旋下切方式。
在此基础上利用宏子程序进行数控编程，采用行切法切削加工。该方法简便易行，且能保证零件的表面粗糙度和加工精度。
On the basis of putting forward a new method of calculating joint, programming NC code adopting macro processor and subprogram, machining surface of part by means of row cutting.
概括了型腔加工轨迹生成的方法，分析了采用数学优化的方法来优化行切加工轨迹方向的原理、过程，并给出了相应的程序框图。
The methods used for generating the cutting path in pocket machining are summarized, the principle and processing of the way are analysed and the corresponding flow charts are given.
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