Parametric Investigation and Optimization of Co2 Laser Cutting process used for cutting Hardox-500 materials

To improve and optimize the responses of a Laser Beam machining process, the various input machining control parameters are to be set at an optimal value. As such one has to adopt experimental methods, which are cumbersome, time consuming, costly and at times not feasible. During such situations, optimization technique like Taguchi can be used as it provides a cost effective method for solution of such complex problems. Unlike traditional optimization techniques, Taguchi is robust and performs well in optimization problems. Considering these advantages of Taguchi, optimization of Co2 Laser beam machining process is done using this technique. In this research work, the desired responses are kerf width and surface roughness and Perpendicularity of cut are calculated. The process control parameters considered are Gas pressure, Cutting Speed, pulse frequency and power.