The development of discharge process and its volt-ampere properties inEDM are investigated.The reasons and conditions of maintenance voltage are explained withthe analyte method of non-linear circuit.

• 通过实验对电火花加工中方波脉冲电源放电时,间隙电压、电流随时间的发展过程及其伏安特性进行了研究,并用非线性电路分析方法解释了产生火花放电间隙维持电压的原因及条件。