Patent ID: 7011893
Filing Date: 2006-03-14
Classification: B01J,B21D,F01N,Y10T

Abstract:
1. A process for producing a metallic layer, which comprises: forming structures at least in subregions of the metallic layer, the structures having corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the corrugation peaks, and a lower bearing surface formed at least in part from the corrugation troughs; forming the metallic layer with at least a first region having a first material thickness and a second region having a second material thickness being different than the first material thickness; and forming the structures, in longitudinal direction, independently of the respective material thickness, with the upper bearing surface and the lower bearing surface in the first and second regions being substantially aligned in longitudinal direction in vicinity of the corrugation peaks and the corrugation troughs respectively.