电火花修整超硬磨料砂轮技术发展现状  

State-of-the-Art of Electrical Discharge Dressing Technology for Superabrasive Grinding Wheel

作　　者：余剑武[1,2] 何利华[1,2] 黄帅[1] 尚振涛 吴耀 段文[1] 

机构地区：[1]湖南大学,长沙410082 [2]国家高效磨削工程技术研究中心,长沙410082

出　　处：《中国机械工程》2015年第16期2254-2262,共9页China Mechanical Engineering

基　　金：国家科技重大专项(2012ZX04003-101)

摘　　要：电火花加工技术的发展带动了电火花修整超硬磨料砂轮技术,改变了传统砂轮"硬接触"修整方法。近年来,许多学者致力于研究超硬磨料砂轮的电火花修整方法,为提高磨削效率和磨削精度做了大量有意义的研究。基于大量文献的论述与研究,回顾了近三十年来电火花修整超硬磨料砂轮技术发展过程的各种研究内容以及取得的成果,完整地阐述了电火花修整金属基超硬磨料砂轮技术的基本原理。以立方氮化硼(CBN)和金刚石磨料砂轮修整为主要应用,对不同电极、不同放电介质、不同放电参数以及现代工程理论辅助下的建模分析方法等方面做了介绍,分析了现有电火花修整技术发展中存在的问题,探讨了未来发展的方向及趋势。EDD of superabrasive grinding wheel was developing with electrical discharge machining （EDM） technology, changing the traditional wheel dressing methods based on hard contact. In recent years, many researchers were working on EDM dressing methods of superabrasive grinding wheel and achieving a lot of significant results to contribute to the efficiency and precision grinding. Based on nu- merous literatures, the research fruits on the development of EDD technology within the last thirty years were reviewed. The basic principles of EDM dressing technology of metal-bonded superabrasive grinding wheel were introduced. According to the dressing applications of CBN and diamond grinding wheels, the effects of different electrodes, different dielectrics, different electrical parameters and modeling with modern design theories were presented. The existing problems in the developing EDD technology were analyzed, and the future developing directions were also discussed.

关 键 词：电火花修整 金属结合剂 超硬磨料砂轮 发展现状 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]