Machining parameters optimization in laser beam machining for micro elliptical profiles using TOPSIS method

The material removed from the surface of the material in the laser beam machining is basically depends on the parameters like laser power, cutting speed, pressure of the gas and pulse width. Among all the parameters laser power and cutting speed plays vital role in the case of surface finish, shape and size of the final machining condition. Here, an attempt was made to find the optimum parameters to make the elliptical profile in the aluminium based composite material. For that, dimensions and mathematical characters like area, perimeter were selected as the output responses. L9 orthogonal array with Taguchi method was selected to conduct experiments and to study the effect parameters on the responses. For utilizing the better parameters in future analysis for making micro elliptical profile on the aluminium based composite, an ideal multi objective optimization method TOPSIS was utilized in this work. (C) 2019 Elsevier Ltd. All rights reserved.