微小群孔阵列的照相电解加工技术研究  

Micro Array-holes Produced by Photographic Electrochemical Machining

作　　者：孙毅[1] 曲宁松[1] 李寒松[1] 李冬林[1] 刘建[1] 

机构地区：[1]南京航空航天大学江苏省精密与微细制造技术重点实验室,江苏南京210016

出　　处：《机械制造与自动化》2009年第2期39-41,46,共4页Machine Building & Automation

基　　金：江苏省基金(BK2007530);国家"863"项目资助(2006AA04Z321);南京航空航天大学科研创新基金项目(Y0807-052)资助

摘　　要：微小群孔结构广泛地应用于各领域,其加工技术日益受到关注。基于照相电解加工理论,研究了电解液浓度、电解液压力、加工电压等参数对群孔加工结果的影响。研究表明,高电压、高电解液压力能有效提高微小群孔的尺寸均匀性;低电压、低电解液浓度能显著降低微小群孔的锥度;采用高低电压结合的方法进行加工,获得了较好的群孔尺寸均匀性,降低了群孔锥度,很好地满足了加工要求。Structure of multiple micro-holes is widely used in various fields and attention is more and more paid to its technology, in this paper, a technology called Photographic Electrochemical Machining （ PECM ） with several advantages, such as higher machining rate and better precision is proposed, which is used to machine the group holes. Effects of conditions, such as electrolyte concentra- tion, electrolyte pressure and applied machining voltage on machining results, are investigated. The experiment results show that high applied machining voltage and electrolyte pressure can improve the uniformity of array-holes significantly,while the taper of holes reduces evidently by using low voltage and low electrolyte concentration. Array-holes of uniformity and low taper can be gained by the combination with high and low voltage.

关 键 词：微小群孔 照相电解 微细加工 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]