激光平面切割所面对的原始对象是众多无序的曲线段, 而加工轨迹间的定位以及切割过程本身却是一个有序的连续加工过程。如何将无序的曲线段转换成有序的并且符合激光切割工艺要求的加工轨迹, 如何将杂散的轨迹规划成高效的切割路径从而最终生成数控(NC)加工代码, 这些都是实现激光平面切割自动编程的关键。根据激光平面切割轨迹和加工工艺的特点, 对实现自动编程所必须解决的若干关键技术进行了深入分析, 对每一个关键步骤均给出了解决方案和思路, 最终实现了经“轨迹的自动提取”、“轨迹间关系的自动判别”、“开光点的自动创建”、“最短切割路径的自动规划”等关键步骤由无序的曲线段自动生成数控程序的过程。

The original objects dealt with in laser planar cutting are numerous curve segments out of order, while the processing itself is sequential. The key of auto programming for laser planar cutting is how to convert such curve segments to ordered cutting traces and generate numerical control (NC) codes at last. According to the characteristics of laser planar cutting, the key technologies of auto-programming are discussed and the solutions to every key steps are given here. NC programs of laser planar cutting can be automatically generated from unordered curve segments through such key steps, namely “auto extraction of traces”, “auto analysis of relations between traces”, “auto creation of laser-on points” and “auto plan of the shortest path”.