Analysis of topographic change by slide burnishing of C45 steel surface milled with variable number of inserts

Abstract

The burnishing process’s positive changes in the material’s properties are measured with different responses. Roughness, stress, and microstructure changes are the main indicators of the internal and external factors faced by the material. Burnishing process as a post-process of critical components to enhance different properties performed by applying pressure on the material to deform plastically for the expected properties enhancement is used in different industries. In this experimental work, C45 steel was face milled by single and multiple-inserts and burnished with a 6mm diameter synthetic diamond ball to study the effect of burnishing force on the surface topography. 3D roughness parameters were used as response parameters measured before and after the burnishing process by AltiSurf 520 of Altimet as they are more representative of topographic changes by different machining processes and procedures than profile roughness parameters. Roughness was reduced significantly after the burnishing process in both cases and a decreasing trend was observed when compared at the same burnishing force.