Multiscale assessment of structured coated abrasive grits in belt finishing process

Abstract

This paper outlines the link between grit morphology and surface roughness of belt-finished workpieces.It features a comparative analysis of a new generation of abrasive belts with diverse abrasive structures,and a multi-scale roughness characterization of abrasive belt wear on a variety offinished surfaces. Theultimate thickness of the mechanically deformed layer and surface profile projections depends, to a greatextent, on the abrasive mechanisms of friction and wear employed in thefinishing process. By modifyingthe physical mechanisms (cutting, plowing or sliding), it is possible to achieve a concomitant change inthe rate of material removal and, consequently, to the specific surface roughness of thefinished parts.Our research shows that the active roughness scale resulting from beltfinishing is stronglydependent on the grit orientation and the binder distribution. The results are promising for increasingthe efficiency of the abrasion processes and for improving the surface texturing offinished parts.