电化学放电加工电压-电流特性的研究  

Study on the Voltage-current Characteristics in Electrochemical Discharge Machining

作　　者：朱敬文[1] 吴杰[1] 康小明[1] 赵万生[1] 

机构地区：[1]上海交通大学机械与动力工程学院机械系统与振动国家重点实验室,上海200240

出　　处：《电加工与模具》2013年第2期21-25,共5页Electromachining & Mould

基　　金：国家自然科学基金资助项目(51175336)

摘　　要：电化学放电加工机理主要是火花放电的热蚀与高温下化学腐蚀的共同作用。加工过程中状态信息的及时获取对电化学放电加工的精确控制具有重要意义。通过对电化学放电加工过程中电压-电流特性的研究,用实验结果分析了电压-电流与工具电极反应面积之间的关系,得出与工具电极反应面积匹配的最佳电压,为电流信号成为电化学放电加工监视信号提供了理论基础。The mechanism of electrochemical discharge machining （ECDM） is the joint influences of thermal erosion from the electric sparks and chemical effect at high temperature. The real-time ac-quisition of the processing status is important to the precise control of ECDM. The voltage-current characteristics in ECDM are studied in this paper, and the relationship between the voltage-current and the reaction area of tool electrode was analyzed through experimental results. The optimal voltage for the given reaction area of tool electrode was obtained. This makes if possible to monitor the ECDM machining process according to the current signal.

关 键 词：电化学放电加工 电压-电流特性 工具电极 反应面积 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]