Optimization of Cutting parameters for Surface roughness in CNC turning of P20 steel

Abstract

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.