Optimization of Process Parameters of Laser Cladding on AISI 410 Using MEREC Integrated MABAC Method

The current study fixates on utilizing the laser cladding process with low laser power to repair the surface irregularities in turbine blade material AISI 410. The clad quality obtained after repair is influenced by the choice of process variables. The influence of these input variables on the microhardness and dilution ratio are examined through the application of analysis of variance. The multi-attributive border approximation area (MABAC) method is employed to optimize the process parameters, aiming to achieve superior clad quality by obtaining the most optimal parameters. The weight criteria for the optimization method is determined by method on the removal effects of criteria (MEREC) method. The dilution ratio improves when the pulse frequency and average laser power are increased while, decreases on increasing the scanning speed. The microhardness of the clad zone increases on increasing the scanning speed and pulse frequency while decreases when the laser power is increased. The dilution ratio and microhardness of the clad zone are primarily influenced by scanning speed and the average laser power respectively. The findings indicate that the experimental run utilizing an average laser power-30 W, scanning speed-2 mm/s, and pulse frequency-50 kHz yielded the optimal set of process parameters. The optimal set of parameters has a dilution ratio of 0.119 and microhardness of the clad zone 258.3 Hv.