International Journal of Science, Engineering and TechnologyAuthors: Vishal J Dhore, Gaurav P Demse, Junaid M Shaikh, Khushi S Dikkar, Praveer Agrawal
Abstract: This work investigates the influence of turning process parameters feed rate, cutting speed, and depth of cut on the surface roughness of EN31 steel, a high-carbon alloy commonly used in automotive components and precision bearings. Hard-turning experiments, designed using the Taguchi L16 orthogonal array, were conducted with a Cubic Boron Nitride tool to evaluate process parameter variations. Analysis revealed that feed rate had the greatest influence on surface roughness (55.22%), followed by cutting speed (22.72%) and depth of cut (22.06%). Increased feed rates and cutting depths resulted in higher surface roughness, emphasizing the importance of parameter optimization. The optimal conditions produced a smoother surface, reduced variability, and minimized tool wear. The study highlights the combined effects of machining parameters and valuable guidance for improving hard-turning processes, supporting the development of predictive models for precise and economical manufacturing in industries such as aerospace and automotive.
