Qureshi, Arshad2016-08-132016-08-132015-12Qureshi, A. (2015). Optimization of Cutting parameters for Surface roughness in CNC turning of P20 steel. International Journal of Scientific & Engineering Research, 6(12), 133-138.2229-5518http://www.aiktcdspace.org:8080/jspui/handle/123456789/1767Key words: Optimization, Surface Roughness (Ra), Taguchi, Turning, P20 steel.The surface roughness is one of the most commonly used criteria to determine the quality of turned steel. The surface roughness of a turned surface is an important response parameter. The quality of product such as laptops, cell phones made by injection moulding greatly depends on finishing of the moulds. Surface roughness is one of the important factors for the materials used for making moulds and dies such as P20 steel. This paper optimize the cutting parameters such as feed rate, depth of cut and cutting speed for the turning process of AISI P20 steel (mould steel) for better surface finish. Taguchi’s technique has been used to accomplish the objective of the experimental study. L-9 Orthogonal array, Signal to noise (S/N) have been used for conducting the experiments.en-USStaff Publication - SoETStaff Publication - MEArticle