Machining Characteristics Evaluation of Super Heat-resistant Alloy(Inconel 718) According to Cutting Conditions in High Speed Ball End-milling

고속 볼엔드밀링에서 가공조건에 따른 초내열합금 (Inconel 718)의 가공특성 평가

  • 권해웅 (부산대학교 대학원 기계공학부) ;
  • 김정석 (부산대학교 기계공학부, 정밀정형 및 금형가공 연구소) ;
  • 강익수 (부산대학교 기계공학부) ;
  • 김기태 (화천기공(주))
  • Published : 2010.02.15

Abstract

Inconel 718 alloy has been applied to high temperature, high load and corrosion resistant environments due to its superior properties. However, This alloy is a difficult-to-cut nickel-based superalloy and the chipping or notch wear is mainly generated on the cutting edge of the tool. In this study, the machinability of Inconel 718 is investigated to improve tool life under various cutting conditions with TiCN-based coated ball-end mills. The cutting conditions can be suggested to improve both the tool life and machined surface quality in Inconel 718 high speed machining.

Keywords

References

  1. Balazinski, M., Songmene, V., and Kops, L., 1995, "Improvement of tool life through variable feed milling of Inconel 600," CIRP Annals, Vol. 44, pp.55-58 https://doi.org/10.1016/S0007-8506(07)62274-4
  2. Kim, S. W., Park, H. B., Lee, D. W., and Kim, J. S., 1998, "Evaluation on High-Speed Machining of Inconel 718," JKSPE, No. 5, pp. 182-185
  3. Kim, K. W., Choi, H. M., Chae, W. S., and Kim, D. H., 2001, "Performance of PVD and CVD Coated Carbide Tools in Machining Inconel 718," JKSAE, pp. 41-48
  4. Kim, S. W., Ahn, C. S., Lee, D. W., 2000, "Evaluation of Machinability by Cutting Environments in HighSpeed Machining of Difficult-to-cut Materials(Test for Tool Life Using Compressed Chilly Air Cooling)," JKSMTE, Vol. 9, No. 5, pp. 158-163
  5. Cho, C. Y., Moon, S. D., and Ryu, S. H., 2006, "Effect of Cusp on the Cutting Characteristics and Tool Wear of Semi-finishing if Ball-end Milling," Proceedings of the Ksmte Spring Conference 2006, pp. 257-262
  6. Jang, S. C, and Kim, K. W., 2005, "Prediction of Cutting Forces in High Speed End Milling," JKSMPE, Vol. 4, No. 4, pp. 21-27
  7. Jun, T. S., Kim, N. K, and Chung, S. C., 1999, "Cutting Force Analysis in End Milling Process for High-Speed Machining of Difficult-to-Cut Materials," Proceedings of the Ksmte Conference, pp. 359-364. Goldenberg, A. A. and Bezerghi, A., 1985, A
  8. Lee, C. M., Kim, S. W., Lee, D. W., and Kim, J. S., 2000, "Evaluation of thermal characteristics by cutting environments in high speed ball end-miling," Proceeding of the Ksmte Autumn Conference, pp. 34-38
  9. Su, Y., He, N., Li, L., and Li, X. L., 2006, "An experimental investigation of effects of cooling/Iubrication conditions on tool wear in high-speed end milling of Ti-6A1-4V," Wear 261, pp. 760-766 https://doi.org/10.1016/j.wear.2006.01.013
  10. Venugopal, K. A., Paul, S., and Chattopadhyay, A. B., 2007, "Growth of tool wear in turning of Ti-6A1-4V alloy under cryogenic cooling," Wear 262, pp. 1071-1078 https://doi.org/10.1016/j.wear.2006.11.010
  11. Adrian Sharman, Richard C. Dewes, and David K. Aspinwall, 2001, "Tool life when high speed ball nose end milling Inconel 718," Journal of Materials Processing Technology 118 pp. 29-35 https://doi.org/10.1016/S0924-0136(01)00855-X
  12. Kim, H. G., Sim, J. H., Lee, and J. C., 2007, "Machinability Evaluation of CBN Ball End Milling in Die & Mold Steels with High Hardness", Transactions of the Korean Society of Machine Tool Engineers," Vol. 14, No. 4, pp. 119-126
  13. Han, J. S., Jo, H. C., and Jung, J. Y., 2005, "A Study on the Surface Roughness on the Machined Surfaces," JKSIE, pp. 301-306