The principle of a CNC cutting machine for intersecting line and the design of CNC software are introduced which incorporates the integral linear interpolation algorithm to achieve the trace control of a intersecting line cutting machine.

• 阐述一种计算机数控相贯线切割机的轨迹控制原理及数控软件设计，采用数字积分直线插补算法来实现相贯线切割机的轨迹控制。