Surface Characteristics of Stainless Steel Sheets Cold-rolled with Rolls Polished in Axial and Other Directions

Abstract

The experiments for cold rolling of stainless steel sheets were made in order to clarify the effect of methods of roll polishing and surface roughness of rolls on the surface characteristics of rolled sheets such as surface gloss, ratio of flat area and so on. Then, the surfaces of rolled sheets were observed with a microscope and a scanning electron microscope. As a result, it has been found that the surface of sheets rolled with the rolls polished in the axial direction with #800 polishing paper, which shows the largest gloss in the present experiments, is considerably flat in spite of having thin uneven linear defects in the normal direction to the rolling one.