WIT Press


Difficulties In Characterising Roll Surfaces

Price

Free (open access)

Paper DOI

10.2495/LAMDAMAP030051

Volume

44

Pages

10

Published

2003

Size

458 kb

Author(s)

T.E. Warrender, D.K. Aspinwal, R.C. Dewes, J.M.T. Simao, E.M. Aspinwall & G. scamans

Abstract

Mill rolls finished by electrical discharge texturing (EDT) are widely used in the manufacture of steel and aluminium alloy sheet / strip. Appropriate selection of process operating parameter levels: peak current, onloff time, polarity, etc., allows a limited degree of independence in specifying roll surface topography in t e r n of surface roughness (Ra), peak count (Pc) and skewness (Rsk), in order to meet specific functional requirements. Experimental work aimed at determining the effect these operating parameters has been carried out and comprehensive surface topography measurements made using a variety of non contact (white light interferometer and laser units) and stylus contact systems. The paper details the significant differences, which oc

Keywords