Optimization of Cutting Parameters in Turning Operation Using RSM

Numerous studies have been conducted to investigate the factors influencing surface roughness in the turning process for various materials. This research focuses on analyzing the impact of cutting parameters, namely cutting speed, feed rate, and depth of cut, on surface roughness in the machining of C45 carbon steel using the Box-Behnken design of experiments (DOE) approach. Through a series of carefully designed machining experiments, the effects of different combinations of cutting parameters were evaluated. The research results revealed the optimal cutting parameter settings for minimizing surface roughness (Ra) in the turning of C45 carbon steel: Cutting Speed (Vc), Feed Rate (fz) and Depth of Cut (ap) are 309.98 m/min; 0.0800002 mm/rev and 0.500002 mm, respectively. Under these optimized conditions, the achieved surface roughness value was measured at 0.559171 µm. These findings highlight the significance of selecting appropriate cutting parameters to achieve superior surface quality in the turning process of C45 carbon steel. The outcomes of this research provide valuable insights into the relationship between cutting parameters and surface roughness in the machining of C45 carbon steel. The optimized cutting parameters identified through the Box-Behnken DOE approach can significantly enhance surface quality and contribute to improved performance of machined components