Burnishing, an ultra-precision superficial plastic deformation process, is used
increasingly as a surface enhancement finishing treatment after machining operations not only to
give a mirror-like and work-hardened surface but also to impose favorable compressive residual
stress in it. To analyze the feasibility of turning-burnishing hybrid process, the Taguchi’s L27(313)
orthogonal array method with the analysis of variance (ANOVA) were used to analyze the influence
of the initial turning process on surface integrity of roller burnished AISI 1045 steel such as surface
roughness, surface microhardness. three turning parameters, namely the cutting feed, cutting depth
and cutting speed, three burnishing parameters, namely the burnishing feed, burnishing depth and
burnishing speed were selected as the experimental factors in Taguchi’s design of experiments to
determine which one has the dominant influence and how it works on burnishing effects, namely
the surface roughness and surface microhardness, the interactions between cutting feed, burnishing
feed and burnishing depth were considered. The experimental results agreed well with the
theoretical analysis and the conclusion is cutting feed has dominant influence on burnished surface
integrity.