电火花线切割节能脉冲电源放电间隙特性研究

摘要

It is of great significance to study the discharge gap characteristics of energy-saving pulse generator for the purpose to detect discharge status,CNC servo control and other aspects. On the basis of analyze the whole structure,the voltage-current characteristic of energy-saving pulse generator is studied. Ladder phenomenon of gap spark voltage is explained through experiments,and influences of pulse width,open circuit voltage and workpiece thickness on gap peak current is studied.%研究电火花线切割机床脉冲电源工作时的放电间隙特性，对极间放电状态检测、伺服系统进给控制等具有重要意义。在对节能脉冲电源整体结构进行分析的基础上，对其工作时的放电间隙伏安特性进行了研究。通过实验研究了火花放电状态出现的“阶梯”电压现象，并分析了脉宽、开路电压、切割厚度对间隙峰值电流的影响规律。