加工间隙内电解产物对微细电解加工的影响分析  

Influence of Electrolytic Products in Machining Gap on Micro-ECM Process

作　　者：马晓宇[1] 李勇[1] 吕善进[1] 胡满红[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《电加工与模具》2008年第6期31-35,共5页Electromachining & Mould

基　　金：国家高技术研究发展计划资助项目(2006AA04Z317)

摘　　要：微细电解加工时,由于间隙微小,生成的电解产物因难以从加工区域中移除而降低了加工速度甚至中断加工。为保证加工的持续进行,利用工具电极作间歇快速回退是移除间隙内的电解产物、更新电解液的有效途径之一。论文研究分析了间歇回退加工情况下电解产物移除速率对加工速度的影响,结果表明:加工速度并不随加工间隙的减小而单调增大,实际加工速度存在极限值(极大值)。为兼顾加工效率和加工精度,应以与之对应的间隙值作为实际加工间隙。The electrolytic products are hard to be removed from machining gap in micro-ECM （electrochemical.machining） process, which may lower machining speed or stop the machining process, Intermittent withdrawal of electrode is an effective way to cleanse electrolytic products, renew electrolyte in the gap, and promote the continuance of machining process. The influence of electrolytic products removing rate upon machining speed is analyzed in the case of intermittent withdrawal of electrode. Results show that the machining speed does not increase monotonously with the decrease of interelectrode distance. Giving consideration to machining efficiency and accuracy, machining gap should be the corresponding gap value when the machining speed reaches its maximum.

关 键 词：微细电解加工 电解产物 加工速度 间歇回退 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]