The present study focuses on tool-wear behaviour and cutting forces in machining of NiTi shape memory alloys (SMAs) under various machining conditions, namely dry, preheated, and cryogenic cooling at three different cutting speeds. Obtained results show that cryogenic cooling plays a significant role on reducing notch wear at higher cutting speeds in comparison with machining under dry and preheated conditions. It is also found that cryogenic cooling substantially decreases the cutting force requirement compared with machining under dry and preheated conditions. Chip thickness is not significantly affected by machining conditions. Based on these experimental findings, cryogenic machining is considered a promising approach for improving machining performance of NiTi shape memory alloys.
|Number of pages||6|
|State||Published - 2013|
|Event||14th CIRP Conference on Modeling of Machining Operations, CIRP CMMO 2013 - Turin, Italy|
Duration: Jun 13 2013 → Jun 14 2013
Bibliographical noteFunding Information:
Authors acknowledge support from the NASA FAP Aeronautical Sciences Project and the NASA EPSCOR Program under Grant No NNX11AQ31A. Authors sincerely thank Mr. Charles Arvin for his help with machining experiments.
- Cryogenic machining
- NiTi shape memory alloys
- Phase transformation
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering