FLAT PRODUCT COMPOSED OF A METAL MATERIAL, IN PARTICULAR A STEEL MATERIAL, USE OF SUCH A FLAT PRODUCT AND ROLLER AND PROCESS FOR PRODUCING SUCH FLAT PRODUCTS

摘要

The invention allows the planned provision of a flat metal product with such a finely-dimensioned, stochastic or quasi-stochastic surface structure that said structure can then be visually perceived only slightly, if at all, following a application of a surface coating typical in the case of automobiles. In the case of a surface topography provided according to the invention, the transition between the plateaus and the valleys takes place simultaneously by means of steep flanks. The result of this is that the morphology of the thin sheet surface is virtually independent of the actual depth of the valleys. As a result, the morphology of the thin sheet surface of a flat metal product according to the invention is therefore also independent of the degree of dressing which is applied by a dressing roller during the production of the thin sheet texture.