数控展成电解磨削加工的机理研究  

Research on Mechanism of Numerically Controlled Electrochemical Contour Evolution Grinding

作　　者：干为民[1] 徐家文[2] 

机构地区：[1]常州工学院,江苏常州213002 [2]南京航空航天大学,江苏南京210016

出　　处：《电加工与模具》2005年第5期12-15,共4页Electromachining & Mould

基　　金："十五"国防预研项目;常州市"831工程"项目;常州市科技计划项目(CQ2004005)

摘　　要：为解决整体叶轮叶片型面的精加工难题,进行了5轴联动数控展成电解磨削加工的机理研究。在分析了数控展成电解磨削加工中的电极反应和数控展成电解加工成形规律的基础上,通过大量的工艺试验,提出了临界展成速度的概念,得到了数控展成电解磨削加工去除余量的规律。解决了一系列工艺问题,最后加工出了符合设计要求的整体叶轮。加工效率比手工修磨、抛光提高12倍以上。In order to solve the problem of finishing the blade surface of integral impeller, the research on mechanism of 5-axis numerically controlled electrochemical contour evolution grinding （NCECCEG） is being carried on. Electrode reaction of NC-ECCEG and forming law of numerically controlled electrochemical contour evolution machining （NC-ECCEM） were analyzed. On the basis of technological tests of NC-ECCEG, the term of critical contour evolution speed was defined. The forming law of NC-ECCEG was discovered. A series of technical problems were solved. Finally, a qualified integral impeller has been machined. The machining efficiency of NC-ECCEG can be 12 or more times better than that of manual polishing operations.

关 键 词：电解磨削 整体叶轮 加工机理 数控展成电解加工 磨削加工 机理研究 整体叶轮 叶片型面 成形规律 电极反应 5轴联动 工艺试验 

分 类 号：TG662[金属学及工艺—金属切削加工及机床] TG580.6