Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Experimental Characterization of Turning Process of Titanium Alloy Using Cryogenic Cooling and Nanofluid Minimum Quantity Lubrication

극저온 냉각 및 나노유체 극미량 윤활을 적용한 티타늄 합금의 선반 절삭가공 특성에 관한 연구

  • Kim, Jin Woo (Department of Mechanical Engineering, Graduate School, Sungkyunkwan University) ;
  • Kim, Jung Sub (Department of Mechanical Engineering, Graduate School, Sungkyunkwan University) ;
  • Lee, Sang Won (School of Mechanical Engineering, Sungkyunkwan University)
  • 김진우 (성균관대학교 대학원 기계공학과) ;
  • 김정섭 (성균관대학교 대학원 기계공학과) ;
  • 이상원 (성균관대학교 기계공학부)
  • Received : 2016.05.24
  • Accepted : 2016.12.21
  • Published : 2017.03.01
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Abstract

Recently, titanium alloys have been widely used in aerospace, biomedical engineering, and military industries due to their high strength to weight ratio and corrosion resistance. However, it is well known that titanium alloys are difficult-to-cut materials because of a poor machinability characteristic caused by low thermal conductivity, chemical reactivity with all tool materials at high temperature, and high hardness. To improve the machinability of titanium alloys, cryogenic cooling with LN2 (Liquid Nitrogen) and nanofluid MQL (Minimum Quantity Lubrication) technologies have been studied while turning a Ti-6Al-4V alloy. For the analysis of turning process characteristics, the cutting force, the coefficient of friction, and the surface roughness are measured and analyzed according to varying lubrication and cooling conditions. The experimental results show that combined cryogenic cooling and nanofluid MQL significantly reduces the cutting forces, coefficients of friction and surface roughness when compared to wet condition during the turning process of Ti-6Al-4V.

Keywords

References

  1. Rahman, M., Zhi-Gang, W., and Yoke-San, W., “A Review on High-Speed Machining of Titanium Alloys,” International Journal Series C Mechanical Systems, Machine Elements and Manufacturing, Vol. 49, No. 1, pp. 11-20, 2006.
  2. Greaves, I. A., Eisen, E. A., Smith, T. J., Pothier, L. J., Kriebel, D., et al., “Respiratory Health of Automobile Workers Exposed to Metal Working Fluid Aerosols: Respiratory Symptoms,” American Journal of Industrial Medicine, Vol. 32, No. 5, pp. 450-459, 1997. https://doi.org/10.1002/(SICI)1097-0274(199711)32:5<450::AID-AJIM4>3.0.CO;2-W
  3. Raynor, P. C., Cooper, S., and Leith, D., “Evaporation of Polydisperse Multicomponent Oil Droplets,” American Industrial Hygiene Association Journal, Vol. 57, No. 12, pp. 1128-1136, 1996. https://doi.org/10.1080/15428119691014233
  4. Priarone, P. C., Robiglio, M., Settineri, L., and Tebaldo, V., "Milling and Turning of Titanium Aluminides by Using Minimum Quantity Lubrication," Procedia CIRP, Vol. 24, pp. 62-67, 2014. https://doi.org/10.1016/j.procir.2014.07.147
  5. Lee, P.-H., Nam, J. S., Li, C., and Lee, S. W., “An Experimental Study on Micro-Grinding Process with Nanofluid Minimum Quantity Lubrication (MQL),” Int. J. Precis. Eng. Manuf., Vol. 13, No. 3, pp. 331-338, 2012. https://doi.org/10.1007/s12541-012-0042-2
  6. Park, K.-H., Ewald, B., and Kwon, P. Y., "Effect of Nano-Enhanced Lubricant in Minimum Quantity Lubrication Balling Milling," Journal of Tribology, Vol. 133, No. 3, Paper No. 031803, 2011.
  7. Venugopal, K., Paul, S., and Chattopadhyay, A., “Tool Wear in Cryogenic Turning of Ti-6Al-4V Alloy,” Cryogenics, Vol. 47, No. 1, pp. 12-18, 2007. https://doi.org/10.1016/j.cryogenics.2006.08.011
  8. Yap, T., Sivaraos, C., and Leau, J., “Surface Roughness and Cutting Forces in Cryogenic Turning of Carbon Steel,” Journal of Engineering Science and Technology, Vol. 10, No. 7, pp. 911-920, 2015.
  9. Pusavec, F., Hamdi, H., Kopac, J., and Jawahir, I., “Surface Integrity in Cryogenic Machining of Nickel Based Alloy-Nconel 718,” Journal of Materials Processing Technology, Vol. 211, No. 4, pp. 773-783, 2011. https://doi.org/10.1016/j.jmatprotec.2010.12.013
  10. Groover, M. P., "Fundamentals of Modern Manufacturing: Materials, Processes, and Systems," John Wiley & Sons, 5th Ed., 2010.

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