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Effect of Reference Current and Depth of Cut on Electro-Discharge Energy in Electro-Discharge Truing Process for Metal-Bonded Grinding Wheel

금속결합제 연삭숫돌의 방전트루잉에서 기준전류와 절입깊이가 방전에너지에 미치는 영향

  • Shin, Gun-Hwi (Department of Mechanical Engineering, Gyeongnam National University of Science and Technology) ;
  • Kwak, Tae-Soo (Department of Mechanical Engineering, Gyeongnam National University of Science and Technology) ;
  • Jung, Myung-Won (Electric Convergence Material DivisionKorea, Institute of Ceramic Engineering and Technology) ;
  • Kwak, Ihn-Sil (Faculty of Marine Technology, Chonnam National University)
  • 신건휘 (경남과학기술대학교 기계공학과) ;
  • 곽태수 (경남과학기술대학교 기계공학과) ;
  • 정명원 (한국세라믹기술원 전자융합소재본부) ;
  • 곽인실 (전남대학교 해양기술학부)
  • Received : 2016.04.14
  • Accepted : 2016.04.28
  • Published : 2016.06.03

Abstract

This study focused on developing an electro-discharge truing method for the ELID grinding process using a metal-bonded grinding wheel. The truing process in grinding plays important roles in enhancing the quality of the ground surface. In this study, a reference current in the electro-discharge truing process was confirmed to be a viable solution for efficient truing through performance experiments. Current and voltage variation experiments were carried out and the variation output data were collected with a monitoring program to understand the electrodischarge phenomenon that occurs between metal-bonded grinding wheels and copper electrodes. The experimental results showed that as the reference current decreased, the average electro-discharge energy decreased. Therefore, the reference current can be used as an indicator to estimate the size of the gap between the truer and grinding wheel.

Keywords

References

  1. Lee, E. S., Kang, J. H., and Je, T. J., "High Precision Grinding Technology Using Electrolytic Dressing Method," Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 9, No. 5, pp. 25-33, 2000.
  2. Kim, S. H. and Ahn, J. H., "Reducing the Non Grinding Time in Grinding Operations," J. Korean Soc. Precis. Eng., Vol. 14, No. 8, 101-107, 1997.
  3. Lee, J. S., "A Study on the Truing of Diamond Wheel for Micro V-shaped Groove Grinding," J. Korean Soc. Precis. Eng., Vol. 22, No. 9, pp. 27-33, 2005.
  4. Kim, Y. Y., Kwak, T. S., and Kim K. N., "Mirror-Surface Machining Properties of Structural Ceramics Using Diamond Abrasives," Journal of the Korean Ceramic Society, Vol. 47, No. 4, pp. 290-295, 2010. https://doi.org/10.4191/KCERS.2010.47.4.290
  5. Wang, Y., Zhou, X.-J., and Hu, D.-J., "An Experimental Investigation of Dry-Electrical Discharge Assisted Truing and Dressing of Metal Bonded Diamond Wheel," International Journal of Machine Tool & Manufacture, Vol. 46, No. 3, pp. 338-342, 2006.