协同式CO2焊电弧自身传感模糊控制系统

为了减小 CO2 焊接过程中的飞溅和改善焊缝成型 ,实现焊接参数的最佳匹配。介绍了一种在波形控制基础上 ,采用电弧自身传感的协同式模糊控制方法对焊接过程参数进行实时控制的逆变式 CO2 焊机控制系统。它通过电弧自身传感对 CO2 焊接过程有重要影响的短路过渡频率的检测 ,通过模糊处理和模糊判决之后 ,实时的对电弧电压进行控制 ,以保持焊接过程中规范参数的协同匹配关系。实验结果表明 ,采用该控制系统的焊机 ,实现了焊接规范参数的自动匹配和自动调节 ,同时明显改善了焊缝成型和降低了焊接过程中的飞溅。

Fuzzy Control System for Synergic CO2 Arc Self-sensor

The gross spatter and bad profile of the weld are the two critical problems of CO 2 welding process.In order to solve these problems and realize the optimal match of the parameters of CO 2 welding process,on the basis of wave controlling,a fuzzy control system for synergic CO 2 short circuit arc welding is discussed.As regards the relationship among the various welding parameters,the automatic setting and adjusting of welding parameters has been realized in above system.The result of experiences shows that this fuzzy control develops a stable short circuit arc welding process with much lower spatter,better profile of the weld.