Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Tool Electrode Wear Compensation using Round Trip Method for Machining Cavities in Micro EDM Process

마이크로 방전가공에서 Round Trip Method를 이용한 전극마모 보정

  • 박성준 (연세대학교 나노과학기술연구단) ;
  • 김영태 (삼성전기주식회사 DM사업부) ;
  • 민병권 (연세대학교 기계공학부) ;
  • 이상조 (연세대학교 기계공학부)
  • Published : 2004.10.01
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Abstract

Electrical discharge machining (EDM) is one of the most extensively used non-conventional material removal process. The recent trend in reducing the size of product has given micro EDM a significant amount of research attention. Micro EDM is capable of machining not only micro holes and micro shafts as small as a few micrometers in diameter but also complex three dimensional micro cavities. But, longitudinal tool wear by electrical discharge is indispensable and this affects the machining accuracy in micro EDM process. Therefore, newly developed tool wear compensation strategy called round trip method is suggested and verified by experiment. In this method, machining depth of cut, overlap effect and critical travel length are also considered.

Keywords

References

  1. Ho, K.H., Newman, S.T., 'State of the Art Electrical Discharge Machining (EDM),' International Journal of Machine Tools and Manufacture, Vol. 43, pp. 1287-1300, 2003 https://doi.org/10.1016/S0890-6955(03)00162-7
  2. Masuzawa, T., Fujino, M., Kobayashi, K., 'Wire Electro Discharge Grinding for Micro Machining,' Annals of the CIRP, Vol. 34, No. 1, pp. 431-434, 1985 https://doi.org/10.1016/S0007-8506(07)61805-8
  3. Masuzawa, T., Kuo, C.L., Fujino, M., 'A Combined Electrical Machining Process for Micro Nozzle Fabrication,' Annals of the CIRP, Vol. 43, No. 1, pp. 189-192, 1994 https://doi.org/10.1016/S0007-8506(07)62193-3
  4. Yeo, S.H., Yap, G.G., 'A Feasibility Study on the Micro Electro Discharge Machining Process for Photomask Fabrication,' International Journal of Advanced Manufacturing Technology, Vol. 18, No. 1, pp. 7-11, 2001 https://doi.org/10.1007/PL00003950
  5. Yu, Z.Y., Masuzawa, T., Fujino, M., 'Micro EDM for Three Dimensional Cavities - Development of Uniform Wear Method,' Annals of the CIRP, Vol. 47, No. 1, pp. 169-172, 1998 https://doi.org/10.1016/S0007-8506(07)62810-8
  6. Bleys, P., Kruth, J.P., Acryd, A., Delpretti, R., Tricarico, C., 'Real-time Tool Wear Compensation in Milling EDM,' Annals of the CIRP, Vol. 51, No. 2, pp. 157-160, 2002 https://doi.org/10.1016/S0007-8506(07)61489-9
  7. Dauw, D., Snoeys, R., 'On the Derivation and Application of a Real-time Tool Wear Sensor in EDM,' Annals of the CIRP, Vol. 35, No. 1, pp. 111-116, 1986 https://doi.org/10.1016/S0007-8506(07)61850-2
  8. Kunieda, M., Yoshida, M., Taniguchi, N., 'Electrical Discharge Machining in Gas,' Annals of the CIRP, Vol. 46, No. 1, pp. 143-146, 1996 https://doi.org/10.1016/S0007-8506(07)60794-X
  9. Kim, Y.T., Park, S.J., Lee, S.J., 'Micro Shapes Machining using Micro EDM Process,' Journal of the KSPE, Vol. 20, No. 9, pp. 109-117, 2003