A Review on Machining Aspects of Shape Memory Alloys

Shape memory alloys (SMA) are emerging Modern Age smart materials which can memorize and regain their original shape. Other unique and versatile properties of SMAs include biocompatibility, pseudoelasticity, high corrosion, wear resistance, and many more. Due to such fascinating characteristics, SMAs have gained a lot of attraction and interest over the last few years in the wide range of applications. Major applications have been in the field of aerospace, biomedical and automotive. Conventional machining of SMA is relatively challenging due to severe strain hardening, high toughness, and high cutting forces. Whereas, non-conventional machining significantly improved the surface morphology and dimensional accuracy as well as lowered the machining time. Machining of SMAs has always been critical due to their smart nature. In the current study, different machining aspects of shape memory alloys have been studied in detail for conventional and non-conventional machining processes.