A predictive model and validation of laser cutting of nitinol with a novel moving volumetric pulsed heat flux

- A new model of a moving volumetric heat flux by a pulsed laser was developed.
- A user subroutine was used to model superelasticity and shape memory of nitinol.
- Kerf width can be narrowed by increasing cutting speed and decreasing peak power.
- Taper can be reduced by decreasing cutting speed and increasing peak power.
- Cutting speed is the deterministic factor for HAZ thickness.