Parameters for evaluating the wearing behaviour of surfaces

Abstract With the proliferation of surface finish parameters over the last couple of decades it is perhaps suprising to see continued effort being put to the developing of yet further methods of evaluating surfaces. It can be shown here that important, previously unforeseen information about a surface's true functional properties can be extracted from the basis of the curve work carried out by Messrs. Abbott and Firestone back in the 1930's. This study has brought about the establishing of the DIN 4776 Roughness parameter RK.