Can it be laser or EDM machined?
Yes. NiTi stents are routinely laser machined out of NiTi tubing. After both processes, however, a recast layer and heat-affected zone are typically present and must be removed to enhance fatigue endurance and corrosion properties. Laser as well as EDM cutting of Nitinol sheet in thicknesses between 0.002″ and 0.18″ has also been successfully implemented at SAES Memry.
