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KSME international journal v.18 no.3, 2004년, pp.388 - 394   피인용횟수: 1

Cutting Performance of Si$_3$N$_4$ Based SiC Ceramic Cutting Tools

Kwon, Won-Tae   (Department of Mechanical and Information Engineering, University of Seoul  ); Kim, Young-Wook   (Department of Materials Science and Engineering, University of Seoul  );
  • 초록

    Composites of Si $_3$ N $_4$ -SiC containing up to 30 wt% of dispersed SiC particles were fabricated via hot-pressing with an oxynitride glass. To determine the effect of sintering time and SiC content on the mechanical properties and the cutting performance, the composites with fixed 8hr-sintering time and 20 wt% SiC content were fabricated and tested. Fracture toughness of the composites increased with increasing sintering time, while the hardness increased as the SiC content increased up to 20 wt%. The hardness of the composites was relatively independent of the grain size and the sintered density. For machining heat-treated AISI4140, the insert with 20 wt% SiC sintered for 8hr showed the longest tool life while the insert with 20 wt% SiC sintered for 12hr showed the longest tool life for machining gray cast iron. An effort was made to relate the mechanical properties, such as hardness, fracture toughness and wear resistance coefficient with the tool life. However, no apparent relationship was found between them. It may be stated that tool life is affected by not only the mechanical properties but also other properties such as surface roughness, density, grian size and the number of the inherent defects in the inserts.


  • 주제어

    Si $_3$B $_4$ .   cutting Tool .   Mechanical Properties.  

  • 참고문헌 (12)

    1. Zhao, X., Liu, J., Zhu, B., Miao, H. and Luo, Z., 1999, 'Wear Behavior of $Si_3N_4$ Ceramic Cutting Tool Material Against Stainless Steel in Dry and Water-Lubricated Conditions,' Ceram. Int., Vol. 25, pp. 309-315 
    2. Szafran, M., Bobryk, E., Kukla, D. and Olszyna, A., 2000, '$Si_3N_4-Al_2O_3-TiC-Y_2O_3$ Composites Intended for the Edges of Cutting Tools,' Ceram. Int., Vol. 26, pp. 579-582 
    3. Tajima, Y., 1993, 'Development of High Performance Silicon Nitride Ceramics and Their Applications,' Mater. Res. Soc. Symp. Proc., Vol. 287, pp. 189-196 
    4. Kwon, W. T. and Kim, Y. -W, 2001, 'Microstructure and Cutting Characteristics of SiC-$Si_3N_4$ Ceramic Cutting Tool,' KSME, Vol. 25, No. 12, pp. 1944-1949 
    5. Kim, Y. -W., Mitomo, M. and Hirosaki, N., 1995, 'R-curve Behavior and Microstructure of Sintered Silicon Nitride,' J. Mater. Sci., Vol. 30, pp. 5178-5184 
    6. Kim, Y. -W. and Lee, S. G. and Lee, Y. I., 2000, 'Pressureless Sintering of SiC-TiC Composites with Improved Fracture Toughness,' J. Mater. Sci., Vol. 35, pp. 5569-5574 
    7. Kim, Y. -W., Lee, Y. I., Mitomo, M., Choi, H. J. and Lee, J. G, 1999, 'Fabrication and Mechanical Properties of Silicon Carbide-Silicon Nitride Composites with Oxynitride Glass,' J. Am. Ceram. Soc., Vol. 82, No. 4, pp. 1058-1060 
    8. Kim, Y. -W. and Mitomo, M., 2000, 'Fabrication and Mechanical properties of Silicon Carbide-Silicon Nitride Nanocomposites,' J. Mater. Sci., Vol. 35, pp. 5885-5890 
    9. Cho, K. S., Kim, Y. -W., Choi, H. J. and Lee, J. G., 1996, 'In Situ-Toughened Silicon Carbide-Titanium Carbide Composites,' J. Am. Ceram. Soc., Vol. 79, No. 6, pp. 1711-1713 
    10. Hirosaki, N., Akimune, Y. and Mitomo, M., 1994, 'Microstructure Characterization of Gas-Pressure-Sintered ${\beta}-Silicon$ Nitride Containing Large ${\beta}-Silicon$ Nitride Seeds,' J. Am. Ceram. Soc., Vol. 77, No. 4, pp. 1093-1097 
    11. Baldon, J. B., Wayne, S. F. and Buljan, S. T, 1985, 'Cutting Tool Material : Mechanical Properties-Wear Resistance Relationships,' Am. Soc. Lubricat. Eng. Trans., Vol. 29, pp. 374-352 
    12. Wear Behavior of ${Si}_3N_4$ Ceramic Cutting Tool Material Against Stainless Steel in Dry and Water-Lubricated Conditions , Zhao,X.;Liu,J.;Zhu,B.;Miao,H.;Luo,Z. , Ceram. Int. / v.25,pp.309-315,
  • 이 논문을 인용한 문헌 (1)

    1. 2004. "Estimation of Tool life by Simple & Multiple Linear Regression Analysis of $Si_3N_4$ Ceramic Cutting Tools" 한국공작기계학회논문집 = Transactions of the Korean society of machine tool engineers, 13(4): 23~29     

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