Topological maps for characterisation of engineering surfaces

Abstract

Characterisation of engineering surfaces has a wide range of methods. Commonly used standard 2D (or 3D) parameters many times do not give enough information about surfaces, but their combination provides extended analysis of the texture. Present study shows four different combinations of surface parameters: Ra-Rz, RKu-RSk, Sdq-Sdr, Sq-Sdq. All parameter combinations were plotted in a topological map containing results of 119 measured surface topography. Based on the analysis of topological maps we drew conclusions about their usage and their information content.