Parametric analysis of ball burnishing - A potential metal finishing process

Surface finish has vital influence on most of functional properties of a component like fatigue strength, wear resistance, corrosion resistance, etc. This has given birth to processes like lapping, honing, burnishing, etc. Burnishing is a fine finishing operation involving the cold working plastic deformation of surface layer to enhance the surface integrity and the functional utility of a component. The present study is based on the factorial design methodology and this study has been carried out on a Kirloskar Turnmaster T-40 Lathe to establish the effect of lubricant on the surface roughness of EN8 specimens. The result indicates that SAE-40 oil has significant effect on the surface roughness. A pre-machined surface roughness of 2.7 μm - 3.0 μm can be finished to about 0.3 μm.