Experimental investigation to study the performance of CNT/MoS₂ hybrid nanofluid in turning of AISI 1040 stee

ABSTRACT

Hybrid nano fluids offer a potential scope for abundant heat transfer applications in engineering, owing to synergistic effect of dissimilar characteristics of different nano materials in base fluid. In the present study, total six samples of hybrid nano cutting fluids were prepared in varying concentrations. Thus, fluids were subjected to characterisation after sedimentation test and tested their applicability in machining under MQL mode. Increase in thermal conductivity, specific heat and viscosity were observed with increase in concentration of CNT/MoS₂ nanoparticle in sesame oil. Pin on disc test confirmed that the coefficient of friction was decreased with increase in particle concentration up to 2% by weight beyond that slightly increased. In machining, 2 wt% concentration of CNT/MoS₂ hybrid nano cutting fluid has shown better performance in reducing the cutting forces, temperature, surface roughness and tool flank wear compared to other concentrations.

KEYWORDS:

• Vegetable oil
• MWCNT
• MoS₂
• hybrid nanofluid
• MQL

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Srinu Gugulothu

Srinu Gugulothu is recently completed his Ph.D. in Mechanical Engineering Department at National Institute of Technology Warangal, India. He completed M.Tech in the year 2009 from the National Institute of Technology Warangal and B.E Mechanical Engineering from Osmania University in 2007.  He is having 10 years of experience in Teaching and Research. His research interests include vegetable oil-based hybrid nanofluids and solid lubricants in machining etc. Currently, he is working as Assistant professor in Kakatiya Institute of Technology Warangal, Telangana, India. E-mail: [email protected].

Vamsi Krishna Pasam

Dr. Vamsi Krishna Pasam is currently working as Associate professor in the Department of Mechanical Engineering, National Institute of Technology Warangal, India. He is having 17 years of experience in Teaching and Research. His research interests are application of solid lubricants in machining process, application of eco-friendly nano cutting fluids in machining, vibration-assisted machining, modeling and simulation of manufacturing processes and composite materials.  He published more than 100 research papers in reputed journals and conferences. He is editorial board member for the number of journals. E-mail: [email protected].