Publication:
Coupled effects of vortex tube hybrid cooling with minimal quantity reinforced nanoparticle lubricants in turning NiTi alloys
Coupled effects of vortex tube hybrid cooling with minimal quantity reinforced nanoparticle lubricants in turning NiTi alloys
No Thumbnail Available
Date
2019-12-01
Authors
Khalil A.N.M.
Azmi A.I.
Murad M.N.
Annuar A.F.
Ali M.A.M.
Journal Title
Journal ISSN
Volume Title
Publisher
Research Projects
Organizational Units
Journal Issue
Abstract
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.
Description
Keywords
Nano MQL | NiTi shape memory alloys | Vortex tube chilled air cooling | Wear testing