Recent trends in non-traditional machining of shape memory alloys (SMAs): A review

In this decade, shape memory alloys (SMAs) are significantly accepted in industrial trade and biomedical applications due to their unique characteristics of shape memory effect (SME), pseudoelasticity, extraordinary corrosion and wear resistance, biodegradability, biocompatibility, antigenicity, decomposition, etc. Many difficulties were faced by using traditional machining. Also, traditional machining gives undesirable results like high tool wear, less dimensional accuracy, and a time-consuming process. As a solution, the non-traditional machining processes are used to machine the SMAs. The water jet machining (WJM), laser machining, and electrochemical machining (ECM) processes have some limitations with machining complex shapes. However, electrical discharge machining (EDM), wire electrical discharge machining (WEDM) will provide better machining of complex components with high dimensional accuracy. The present study exhibits the compression of the non-traditional machining of SMAs. The recent trends followed in non-traditional machining is evaluated. A discussion of different machining parameters, output responses, and unpleasant results is covered in this study.