微细电火花加工的新进展

Achievements on Micro Machining with EDM

本文简要地叙述了电火花适于微细加工的性能和特点，指出了实现微细电火花加工的两个基本条件和关键技术，系统地介绍了电火花线电极磨削法的基本原理及其在微细电火花加工中的应用。简要地综述了国际上微细电火花加工的最新进展，并给出了部分加工实例。扼要介绍了国外主要的微细电火花专用机床与设备。同时根据国内微细电火花的研究现状，指出了进一步研究的方向。

This paper briefly states EDM's characters and performances available for micro machining; points out two basic elements and key technologies to perform micro machining with EDM; and systematically demonstrates the principal of wire electrical discharge grinding and its applications on micro EDM. A summary of the latest international achievements on micro EDM and some examples are given. The main special machine tools and equipment for micro EDM are introduced as well. According to the domestic situation of micro EDM research,the direction is pointed out.