微细电极丝的最优张力控制  

Optimal Tension Control of Micro Wire Electrode

作　　者：程刚[1] 韩福柱[1] 冯之敬[1] 曹凤国[2] 

机构地区：[1]清华大学精密仪器与机械学系 [2]北京市电加工研究所,北京100083

出　　处：《电加工与模具》2007年第5期1-4,8,共5页Electromachining & Mould

基　　金：北京市自然科学基金资助项目(3062011)

摘　　要：针对微细电极丝强度低、易断丝的特点,研制了采用主从结构的微细电极丝最优张力控制系统。在线切割加工过程中,上位机根据监测到的放电能量实时对电极丝张力进行优化,下位机则以优化后的张力为目标值对微细电极丝的张力进行跟踪控制。应用该系统进行了实验加工,在确保不断丝的前提下实现了高精度加工。Because of the low strength, an optimal tension control system based on the masterslave structure is developed io order to prevent the breakage of the micro wire electrode. The master computer is responsible for the real-time optimization of the wire tension according to the feedback of discharging energy. The optimized tension is then tracked and applied to the micro wire by the slave computer. This system has made it possible for the high machining accuracy without wire breakage.

关 键 词：微细电极丝 张力优化 主从结构 走丝系统 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]