Application of Nano Cutting Fluid under Minimum Quantity Lubrication (MQL) Technique to Improve Grinding of Ti – 6Al – 4V Alloy

Minimum Quantity Lubrication (MQL) technique obtained a significant attention in machining processes to reduce environmental loads caused by usage of conventional cutting fluids. Recently nanofluids are finding an extensive application in the field of mechanical engineering because of their superior lubrication and heat dissipation characteristics. This paper investigates the use of a nanofluid under MQL mode to improve grinding characteristics of Ti-6Al-4V alloy. Taguchi-s experimental design technique has been used in the present investigation and a second order model has been established to predict grinding forces and surface roughness. Different concentrations of water based Al2O3 nanofluids were applied in the grinding operation through MQL setup developed in house and the results have been compared with those of conventional coolant and pure water. Experimental results showed that grinding forces reduced significantly when nano cutting fluid was used even at low concentration of the nano particles and surface finish has been found to improve with higher concentration of the nano particles.

Authors:

• Dinesh Setti
• Sudarasan Ghosh
• P. Venkateswara Rao

Keywords:

• MQL
• Nanofluid
• Taguchi method
• Ti-6Al-4V.

References:

[1] I. D. Marinescu, W. B. Rowe, B. Dimitrov, and I. Inasaki, "6 - Thermal
Design of Processes," in Tribology of Abrasive Machining Processes, ed
Norwich, NY: William Andrew Publishing, 2004, pp. 177-238.
[2] I. Inasaki, H. K. Tönshoff, and T. D. Howes, "Abrasive Machining in the
Future," CIRP Annals - Manufacturing Technology, vol. 42, pp. 723-
732, 1993.
[3] K. Weinert, I. Inasaki, J. W. Sutherland, and T. Wakabayashi, "Dry
Machining and Minimum Quantity Lubrication," CIRP Annals -
Manufacturing Technology, vol. 53, pp. 511-537, 2004.
[4] T. Tawakoli, M. J. Hadad, M. H. Sadeghi, A. Daneshi, S. Stöckert, and
A. Rasifard, "An experimental investigation of the effects of workpiece
and grinding parameters on minimum quantity lubricationÔÇöMQL
grinding," International Journal of Machine Tools and Manufacture,
vol. 49, pp. 924-932, 2009.
[5] S. K. Das, S. U. S. Choi, and H. E. Patel, "Heat Transfer in
NanofluidsÔÇöA Review," Heat Transfer Engineering, vol. 27, pp. 3-19,
2006/12/01 2006.
[6] K.-H. Park, B. Ewald, and P. Y. Kwon, "Effect of Nano-Enhanced
Lubricant in Minimum Quantity Lubrication Balling Milling," Journal
of Tribology, vol. 133, pp. 031803-8, 2011.
[7] B. Shen, A. Shih, and S. Tung, "Application of Nanofluids in Minimum
Quantity Lubrication Grinding," ASME Conference Proceedings, vol.
2007, pp. 725-731, 2007.
[8] Y. P. Y. Yunn Shiuan Liao, C.H. Chang, "Effects of Cutting Fluid with
Nano Particles on the Grinding of Titanium Alloys," Advanced
Materials Research, vol. 126 - 128, pp. 353-358, August, 2010.
[9] P. Kalita, A. P. Malshe, and K. P. Rajurkar, "Study of tribo-chemical
lubricant film formation during application of nanolubricants in
minimum quantity lubrication (MQL) grinding," CIRP Annals -
Manufacturing Technology, vol. 61, pp. 327-330, 2012.
[10] J.-S. Kwak, "Application of Taguchi and response surface
methodologies for geometric error in surface grinding process,"
International Journal of Machine Tools and Manufacture, vol. 45, pp.
327-334, 2005.