Identification of manufacturing signature by 2D wavelet decomposition

The high performance of industrial applications, requires increasingly technical functional surfaces, in particular from the point of view of topography and micro texture. To study the effect of abrasive finishing in a wide range of wavelengths of surface topography, we developed a multi-scale approach, based on the decomposition of surface topography by 2D continuous wavelet transform. This new approach made it possible to determine the multi-scale transfer function of machining by abrasion for each stage of finishing. The methodology can be extended to characterize abrasive wear in a wide range of scales.