Evaluation of Wet Machining Characteristics of the Presintered Low Purity Alumina with the Ceramic, CBN and Diamond Tools

저순도 알루미나 예비소결체의 절삭유제에 따른 세라믹, CBN, 다이아몬드공구의 가공 특성 평가

  • Published : 2007.02.01

Abstract

In this study, presintered and full sintered low purity alumina ceramics were machined with various tools to clarify the effect of cutting fluid in machinability. The main conclusions obtained were as follows. When the presintered ceramics were wet machined with sintered diamond tool, the tool wear becomes extremely large, and higher cutting speed can be used than in the case of full sintered ceramics. The productivity of wet cutting with the sintered diamond tool is much higher than that of dry cutting. In the case of the CBN and ceramic tools, the tool wear were smaller at wet cutting than at dry cutting, especially exhibiting considerably larger grooved tool wear in wet cutting with ceramic tool.

Keywords

References

  1. Ha, S. B., Choi, W. and Lee, J. C., 'A study on the Surface Roughness & Bending Strength for Zirconia Ceramic Grinding,' J. of the KSPE, Vol. 17, No. 5, pp. 131-136, 2000
  2. Ueda, K., 'Application of Fracture Mechanics in Micro-cutting of Engineering Ceramics,' Annals of the CIRP, Vol. 32, No. 1, pp. 83-88, 1983 https://doi.org/10.1016/S0007-8506(07)63366-6
  3. Nakai, T., 'Machining of Ceramics,' Kogyo-Jairyo, Vol. 32, No. 12, pp. 34-42, 1978
  4. Iijima, N. and Takeyama, H., 'Study on Machining Performance of Sintered Diamond Tool and Its Wear Mechanism (1st Report)-Mechano-physical Wear Mechanism of Sintered Diamond Tool,' Journal of JSPE, Vol. 50, No. 7, pp. 1100-1107, 1984
  5. Watanabe, M. and Yoshikawa, M., 'Cutting of Ceramic Materials by Diamond Coated Cutting Tools,' Journal of JSPE, Vol. 56, No. 9, pp. 1735-1740, 1990
  6. Kitagawa. T., Kubo, A. and Maekawa, K., 'Plasma Hot Machining for Difficult-to-cut Materials (3rd Report)-Application to Glasses and Engineering Ceramics,' J. the Ceramic Society of Japan, Vol. 55, No. 6, pp. 1059-1065
  7. Uehara, K. and Takeshita, H., 'Cutting Ceramics with a Technical of Hot Machining,' Annals of the CIRP, Vol. 35, No. 1, pp. 55-58 https://doi.org/10.1016/S0007-8506(07)61837-X
  8. Akasawa, T., Takeshita, H. and Uehara, K., 'Hot Machining of Ceramics,' Annals of the CIRP, Vol. 36, No. 1, pp. 37-40
  9. Koenig, W. and Wagemann, A., 'Machining of Ceramic Components: Process-Technological Potentials,' NIST Spec. Publ. No. 847, pp. 3-20, 1993
  10. Wang, Z., 'Cryogenic PCBN Turning of Ceramics,' Wear, Vol. 195, No. 1, pp. 1-6, 1993 https://doi.org/10.1016/0043-1648(95)06645-4
  11. Halcomb, D. L. and Rey, M. C., 'Ceramic Cutting Tools for Machining Unsintered Compacts of Oxide Ceramics,' Ceramics Bulletin, Vol. 61, No. 12, pp. 1311-1314, 1982
  12. Lee, J. W., 'Tool Wear in Turning of the Presintered Low Purity Alumina,' J. of the KSPE, Vol. 22, No. I, pp. 39-46, 2005
  13. Lee, J. W., 'Presintering Temperature for Improving the Tool Life in Machining of $Si_{3}N_{4}$ Ceramics,' Proceedings of the KSPE Spring Annual Conference, pp. 456-459, 2005
  14. Lee, J. W., 'Tool Life in Cutting of the Presintered Low Purity Alumina,' Proceedings of the KSPE Spring Annual Conference, pp. 1268-1271, 2004
  15. Lee, J. W., 'Tool-Wear Characteristics of the Ceramic, CBN and Diamond Tools in Turning of the Presintered Low Purity Alumina,' J. of the KSPE, Vol. 23, No. 1, pp. 80-88, 2006
  16. Yu, K. S., Kim, Y. S. and Kim, S. J., 'Physical Ceramics,' Bando Publishing Company, pp. 469-483, 1997