Abstract
Nickel titanium (NiTi) shape memory alloys show reversible diffusionless transition between phases, resulting in special properties and applications. They are ductile, temperature sensitive and their machinability is a major challenge. A new approach to improve their machinability was investigated through the application of chilled air. The temperature phase transformation of the workpiece was characterised by differential scanning calorimetry and micro-milling cutting tests were then undertaken using chilled air, minimum quantity lubricant and a mixture of both. Results showed that the application of chilled air, homogenised the dendritic structure of the workpiece, lower cutting forces and reduced burr height. Simultaneous use of chilled air and minimum quantity lubricant (MQL) showed significant potential for tool wear, burr size reduction and better surface finish.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
