Abstract :
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An efficient mathematical modeling for surface roughness is essential for improving the production quality of turned components by optimizing the controllable process parameters. Therefore, in the present work, mathematical model has been developed for predicting the surface roughness of turned components used in fasteners industry for different process parameters under the specified range. To analyze the effect of process parameters on the surface roughness of turned components, multiple experiments have been designed with the help of central composite design of Response Surface Methodology. The process parameters such as feed, speed and depth of cut at different values are considered in this work for developing a mathematical model for surface roughness. The input–output relationship has also been obtained at different nose radius with the help of regression analysis. Central composite design model of response surface methodology provides the realistic results within the specified range of process parameters. Feed rate has been found one of the most significant factors influencing surface roughness; however, nose radius also affects the surface roughness considerably. The surface roughness of a component increases with the increase of feed rate, whereas an increase in tool nose radius produces smoother surface.
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