Optimizing Machining Parameters to Minimize Surface Roughness in Hard Turning SKD61 Steel Using Taguchi Method


The-Vinh Do†,*, Quoc-Manh Nguyen‡,*


† Thai Nguyen University of Technology, Thai Nguyen city, Vietnam.
‡ Hung Yen University of Technology and Education, Hung Yen, Vietnam.

Corresponding Author Email: [email protected]

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Surface roughness is an important indicator in metal cutting. In this paper, Taguchi method was applied to optimize turning parameters to reduce surface roughness during hard turning SKD61 steel. The parameters of the cutting process selected for investigation include cutting speed, depth of cut and feedrate. In addition, cooling conditions were also investigated with three different conditions including dry cutting, MQL and wet machining. The research provided an optimal machining condition to produce the smallest roughness.