超声辅助纯水微细电解加工  

Ultrasonic assisted ECM in pure water

作　　者：鲍怀谦[1,2] 徐家文[2] 王昌田[1] 

机构地区：[1]山东科技大学机电学院,山东青岛266510 [2]南京航空航天大学机电学院,江苏南京210016

出　　处：《山东大学学报（工学版）》2008年第6期30-32,36,共4页Journal of Shandong University（Engineering Science）

基　　金：航空科学基金资助项目(02H52049)

摘　　要：基于离子状态去除材料的加工机理及其加工后工件表面的优异特性,电解加工在微细、精密,甚至是纳米加工中都存在很大的发展潜力.针对绿色制造和微细加工的需求,提出以纯水为电解液的微细电解加工工艺方法,采用阳离子交换膜促进纯水解离,提高电解加工过程中电流密度;并利用超声辅助电解液产生振动冲击及"负压空化"效应来消除附着在工件表面的钝化膜,解决加工过程中电解产物排出问题,不仅提高了材料去除率,更保证了加工过程的稳定性.Electrochemical machining（ECM） can be used to achieve a desired workpiece surface.This machining method can be applied in principle to micromachining,precision finishing,and even to nano-fabrication.In order to develop green manufacturing and micro-fabrication,an innovative micro-electrochemical machining method-the electrochemical machining in pure water（PW-ECM） was studied.Water dissociation accelerated with the function of a cation exchange membrane and an increase in current density.The ultrasonic vibration assistant was applied to PW-ECM.Process stability was ensured for reaction products from the zone of machining.In addition,anodic films were removed by electrolyte vibrating impact and cavitating for minus press after using the ultrasonic vibration.

关 键 词：电解加工 纯水 阳离子交换膜 水解离 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]