A Study on the Grindability of New Ceramics

뉴 세라믹스의 연삭성에 관한 연구

  • 김성겸 (공주대학교 공과대학 기계자동차공학부) ;
  • 김남훈 (공주대학교 공과대학 기계자동차공학부)
  • Published : 2007.06.15

Abstract

The number of parts made of ceramic materials has gradually been increasing in field of from mechanical engineering to electronics engineering and, mechanical engineering ceramics have spread because of three very favourable characteristic features of their application, namely, heat, wear, and corrosion resistance. therefore, the elaboration of suitable grinding technologies is Important. grinding is problematic because crack-free ceramics are difficult to process owing to their particular micro structure. In this paper we report on the application of advanced precision grinding process, elaborating continuous wheel dressing. The removal rate can be increased significantly and surface roughness is improved. Various problems(roughness, ground surface etc)encountered in grinding of ceramics are also discussed.

Keywords

References

  1. Koepke, B. G. and Strokes, R. J., 1970, 'A study of grinding damage in magnesium oxide single crystals,' J. Mater. Sci, Vol. 5, pp. 240-247 https://doi.org/10.1007/BF00551000
  2. Kirchner, H. P., 1984, 'Damage penetration at elongated machining grooves in hot presssed $Si_3N_4$,' J.Am.Ceram. Soc, Vol. 67/5, pp. 127-132 https://doi.org/10.1111/j.1151-2916.1984.tb09629.x
  3. Conway, J. C. and Kircher, H. P., 1986, 'Crack branching as a mechanism of crushing during grinding,' J.Am. Ceram. Soc, Vol. 69, pp. 603-607 https://doi.org/10.1111/j.1151-2916.1986.tb04815.x
  4. Zhang, B., 1993, 'Precision grinding regime of advanced ceramics,' in: Proceedings of the 1993 Annual Meeting of American Society of Precision Engineering, Seattle, Washington, DC. November 7-12, Vol. 99, pp. 225-229
  5. Zhang, B. and Howes, T. D., 1994, 'Material removal mechanism in grinding ceramics,' Ann. CIRP, Vol. 43, pp. 305-308 https://doi.org/10.1016/S0007-8506(07)62219-7
  6. Xu, H. K. and Jahanmir, S., 1995, 'Micro fracture and material removal in scratching of alumina,' J. Mater. Sci., Vol. 30, pp. 2235-224 https://doi.org/10.1007/BF01184566
  7. Bifano, T., 1988, Ductile-regime grinding of brittle materials, Ph.D. Dissertation, North Carolina State University, Raleigh
  8. Ives, L. K., Evans, C. J., Jahanmir, S., Polvani, R. S., Strakna T. J. and Mcglauflin, M. L., 1993, 'Effect of ductile-regime grinding on the strength of hot-isostatically-pressed sillicon nitride,' in: S. Jahanmir (Ed.) Machining of Advanced Materials, National Institute of Standards and Technology SP 847, Government Printing Office, Washington, DC, pp. 341-352
  9. Mamalis, A. G., Kundark, J., Gyani, K. and Horvath, M., 2002, 'On the Precision Grinding of Advanced Ceramics,' Int. J. Adv. Manf Technol., Vol. 20, pp. 255-258 https://doi.org/10.1007/s001700200150
  10. Brain, K. R., Albert, J. S., Ronald, O. S., Jeffery, L.A., Darry, G., and Marion, B.G., 2002, 'Wire electrical discharge machining of matal bond diamond wheels for ceramic grinding,' International Jounal of machine Tool & Manufacture, Vol. 42, pp. 1355-1462 https://doi.org/10.1016/S0890-6955(02)00056-1