Study of the effect of external vibration on surface roughness after burnishing by a vibration assisted flexible burnishing tool

Abstract

Burnishing is a very simple and effective method for improvement in surface finish and can be carried out using existing machines, such as lathe. Quality of Surface is an important factor to decide the performance of a manufactured product. For better quality surface finish the main factor is surface roughness. On account of its high productivity, it saves also more on production costs. Moreover, the burnished surface has a high wear resistance and better fatigue life. The lower value of roughness gives higher surface finish for the manufacture red product. Now in present scenario different processes like grinding, honing, super finishing, polishing, burnishing, etc. are used to reduce the value of surface roughness. Burnishing is one of the process which majorly effect the surface roughness. The levels of input process parameters are selected on basis of one factor at a time. Experiment of depth of cut, burnishing feed, burnishing speed and number of process. Burnishing process has many advantages over the other finishing processes, the improvement of the surface roughness through the burnishing process generally ranged between 40% and 90% [11-13]. Compressive stresses are also induced in the surface layer, giving several improvements to mechanical properties. Burnishing can improve both the surface strength and roughness [14].