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Parametric Studies in Roller Burnishing of EN8 Steel using RSM Approach

Ramesh Rudrapati, D. Venkata Rao, Perumalla J. Ramulu, Kishor P. Kolhe


Roller burnishing is a cold forming superior process which used to improve the quality of the job. In this process, previously machined or ground surfaces of cylindrical or conical in nature for both external and internal surfaces has been finished. Rubbing actions has been done on smooth, hard object over the minute to remove the surface irregularities that are produced during machining or shearing. The roller burnishing process is a very useful process to improve the surface finish of workpiece in a single process. In the present work, the effects of roller burning process parameters such as spindle speed, work-feed, depth of penetration and number of passes on surface roughness of the En-8 material have been studied through experimental analysis. Mathematical modeling has been made by response surface methodology (RSM). The optimum parametric condition is obtained by RSM. From the analysis, it is observed that surface roughness has improved compared to the initial experimental runs, and RSM is a useful technique to analyze, model and optimize the roller burnishing process.

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