Development of Micro Electrical Discharge Machine
Hideki Takezawa* , Naotake Mohri** , Kouhei Asano* , and Yasunori Kodama*
* Kogakuin University, Inume-cho 139, Hachioji-shi, Tokyo 193-0802, Japan
**The University of Tokyo, Hongo 7-3-1, Bunkyou-ku, Tokyo 113-8656, Japan
Micro-EDM Machining Center with rapidly sharpened electrodes was developed in order to implement the precision micromachining. With the proposed machining system, the hybrid system of thin electrode forming and micro-EDM can be carried out on the same machine. It is the hybrid system that combined EDM with ECM. The developed machining system consists of two types of driving devices for gap distance control. One is stepping motor controlled stage and the other is piezo electric tube. The former one is for coarse adjustment and the latter is for fine adjustment. In this paper, we describe the characteristics of the developed machining system with some micromachining results.