Coupled effects of vortex tube hybrid cooling with minimal quantity reinforced nanoparticle lubricants in turning NiTi alloys

  • Ahmad Nabil Mohd Khalil
  • Azwan Iskandar AzmiEmail author
  • Muhamad Nasir Murad
  • Ahmad Faizal Annuar
  • Mohammed Asyraf Mahboob Ali


Phase transformation of nickel-titanium (NiTi) alloys due to temperature rise during machining process can deliberately deliver poor machinability. Hence, this study investigated the hybrid cooling and lubricating effects of nano-minimum quantity lubricant (NanoMQL) with vortex chilled air of NiTi machining. NanoMQL with vortex chilled air depicted a consistently low tool wear of 0.14 mm as compared to other conditions despite experiencing similar cutting duration, particularly for a lower speed of 12.5 m/min. Likewise, the hybrid cooling method had a profound effect towards tool wear resistant when cutting speed was doubled. A reduced cutting force of 108–185 N and a 15–18% improvement on surface roughness was also observed under the hybrid coolant and lubrication. Conclusively, a substantial improvement towards machinability of NiTi alloys was evidenced in this study.


NiTi shape memory alloys Wear testing Nano MQL Vortex tube chilled air cooling 



We acknowledged the support from SECO Tools (Malaysia) Sdn Bhd on the cutting inserts for machinability evaluation purposes.

Funding information

The financial support was from Malaysian Ministry of Education through Fundamental Research Grant Scheme (FRGS) no: FRGS/1/2015/TK03/UNIMAP/02/6 (UniMAP Project Code: 9003-00538).


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Manufacturing EngineeringUniversiti Malaysia PerlisArauMalaysia
  2. 2.Faculty of Engineering TechnologyUniversiti Malaysia PerlisPadang BesarMalaysia

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