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Machining of Micro-scale Shapes using Micro-EDM Process  

김영태 (연세대학교 대학원 기계공학과)
박성준 (연세대학교 NT연구단)
이상조 (연세대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.9, 2003 , pp. 109-117 More about this Journal
Abstract
With development of high advanced technologies and skills, micro machining techniques also are being more functional and smaller. Some of the recently developed micro machining technologies are micro drilling, micro EDM, WEDG, LBM, micro milling, micro UVM etc. In these micro machining techniques, Micro -EDM is generally used for machining micro holes, pockets, and micro structures in difficult-cut-materials. For machining micro structures, first of all, tool electrode should be fabricated by WEDG process. In micro-EDM, parameters such as peak current, pulse width, duration time are very important to fabricate the tool electrode and micro structures. Developed experimental equipments are composed of RLC circuit with PWM. In this paper, using developed micro EDM machine, the characteristics of micro electro discharge machining are investigated at micro holes, slot, and pocket machining etc. Also the trends of tool wear are investigated in case of hole and slot machining.
Keywords
Micro-EDM; WEDG(Wire Electro Discharge Grinding); Micro hole; PWM;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Jeswani, M. J., 'Small Hole Drilling in EDM,' Int. J. Mach. Tool Des. Res., Vol. 19, pp.165-169, 1979   DOI
2 Masaki, T., Kavata, K. and Masuzawa, T., 'Micro Electro-Discharge Machining and Its Applications,' Proc. MEMS (Napa Valley, CA), pp.21-26, 1990   DOI
3 Masuzawa, T, Fujino, M., 'Wire Electro-Discharge Grinding for Micro Machining,' Annals of the CIRP, Vol. 34, pp.431-434, 1985   DOI   ScienceOn
4 Chu, J. N., Kim, G. M., Kim, S. Y., 'Fabrication of Micro-Shapes using EDM and Ultrasonic Machining,' Journal of the KSPE, Vol. 17, No. 7, pp.20-27, 2000   과학기술학회마을
5 Masuzawa, T.,やさしぃマイクロ加工技術, 日刊工業新聞社, 2000
6 Dario, P., Carrozza, M. C, 'Non-traditional Technologies for Microfabrication,' J. of Micromech. Microeng., Vol. 5, pp.64-71, 1995   DOI   ScienceOn
7 Snoeys, R., Staelens, F., Dekeyser, W., 'Current Trends in Non-Conventional Material Removal Processes,' CIRP, Vol. 35, No. 2, pp.467-480, 1986   DOI   ScienceOn
8 Kholodnov, E., Electrospark Machining of Metals, Vol. 2, Consultants Bureau, pp.120-121, 1964
9 Ahn, H. M., Kim, Y. T., Park, S. J. Lee, S. J., 'Experimental Study on the Electrode Surface in WEDG,' Proceedings of the KSPE, pp.218-222, 2002   과학기술학회마을
10 Ahn, H. M., Kim, Y. T., Park, S. J. Lee, S. J., 'Machining Characteristics of Tool Electrode using Micro-EDM,' Proceedings of the KSPE, pp.1003-1007,2002   과학기술학회마을