Optimization of Surface Roughness: Effect of Machining Parameters on EN23

Abstract

EN23 is one of the most commonly used materials to fabricate forging die in Indian industries. The dies are manufactured through machining process and the parameters of the machining process have considerable impact on the roughness value of the material’s surface. While forging, it was found that die life varies with the change in the machining parametric value and this took my interest to investigate the area. Speed in rpm, feed in mm/rev, and depth of cut in mm were chosen as the process parameters for the investigation of the machining. Design of experiment was used to know the number of specimens required for proper investigation. Specimens were prepared using a L9 orthogonal array and a full factorial design. The optimal machining parameters were obtained using the Taguchi method. The optimal surface roughness value acquired using the L9 orthogonal array is fairly similar to the value obtained using the full factorial technique, according to a comparison of the results. Additionally, a mathematical tool called ANFIS was used to simulate the optimization process and anticipate the surface roughness values.