Study of micro machining characteristics by Nd-YAG Laser on NiTinol shape memory alloy

The micromachining of NiTinol shape memory alloy is exceptionally demanded in industry on account of its wide and expected use in different fields like aviation, biomedical designing. NiTinol shape memory alloy has enormous application in the vehicle and assembling industry. It accomplishes response surface methodology (RSM) approach based on numerical demonstrating of the machining qualities of the pulsed Nd:YAG laser during micro-channelling operation on 1 mm thick NiTinol shape memory alloy sheet. The tests were arranged and done in light of box-behnken design of experiments. Scanning speed, pulse width, frequency and current were the input parameters investigated in this study and furthermore, these parameters were also used to foster the RSM model. The reaction measures choose for the enhancement of upper width deviation (UWD) and lower width deviation (LWD) of the micro-channelling. Based on the experimental box-behnken design (BBD), micro channelling was performed on NiTinol sheet. The results reveal that the input parameters have a considerable impact on the quality of the micro channel. The ideal input parameter for the desired output parameters is found through particle swarm optimisation. The upper and lower width deviation were discovered with the use of a scanning electron microscopic images.