Numerical simulation and optimization in pulsed Nd: YAG laser welding of Hastelloy C-276 through Taguchi method and artificial neural network

作者：Bagchi Ashutosh; Saravanan S^*; Kumar G Shanthos; Murugan G; Raghukandan K

来源：Optik, 2017, 146: 80-89.

DOI：10.1016/j.ijleo.2017.08.082

• Laser welding
• Taguchi
• Simulation
• Temperature
• Aspect ratio
• Artificial neural network

The effect of process parameters viz., welding speed, pulse energy and frequency on the aspect ratio and the peak temperature in the numerical simulation of Nd: YAG laser welding of Hastelloy C-276 is presented. The experimental conditions are designed based on Taguchi L9 orthogonal array and the simulation is performed in SYSWELD 16, a 3 D software package. The optimized parameters for attaining a maximum aspect ratio and a minimum peak temperature (responses) were determined by computing the Signal-to-Noise Ratio (SNR). Mathematical model based on regression analysis was developed for predicting the responses using statistical software Minitab-16. Further, the simulation results are correlated with the regression and artificial neural network models. The deviation is estimated to be less than 10% indicating their effectiveness in predicting the responses. The experimental macrograph for the optimized condition is concurrent with the numerical simulation.

• 出版日期2017