Surface Roughness Characteristics of MS Rod Using Different Cutting Fluids During Turning Operation

During any machining process, there exists an essential criterion to determine the surface characteristics to achieve the desired product quality. Considering this fact as a primary objective, the present study is carried out to determine the average surface roughness (Ra), root mean square (Rq), and average maximum height of the profile (Rz) values of surfaces generated during the machining of MS rod. Plain turning operation is carried out in a lathe considering different machining parameter, viz. cutting speed and depth of cut and using different cutting fluids, viz. mustard oil, kerosene oil, olive oil and water as well as in dry condition (without coolant) via MQL technique. Single-point cutting tool, made of high-speed steel (HSS) has been used in this experimentation work. The study shows that higher spindle sped and depth of cut result in higher surface roughness, irrespective of cutting fluid used. Furthermore, it is experienced that if low viscous cutting fluids (e.g., kerosene and water) are used as cutting fluids, the machined surface becomes rougher.