US 12,240,022 B2
Sheet steel having a deterministic surface structure
Oliver Vogt, Dortmund (DE); Fabian Junge, Wesel (DE); and Burak William Centinkaya, Dortmund (DE)
Assigned to ThyssenKrupp Steel Europe AG, Duisburg (DE)
Appl. No. 17/763,428
Filed by THYSSENKRUPP STEEL EUROPE AG, Duisburg (DE)
PCT Filed Sep. 28, 2020, PCT No. PCT/EP2020/007098
§ 371(c)(1), (2) Date Mar. 24, 2022,
PCT Pub. No. WO2021/069247, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 10 2019 215 580.4 (DE), filed on Oct. 10, 2019.
Prior Publication US 2024/0051003 A1, Feb. 15, 2024
Int. Cl. B21B 1/22 (2006.01); B21B 27/00 (2006.01); B21B 45/02 (2006.01)
CPC B21B 1/227 (2013.01) [B21B 27/005 (2013.01); B21B 45/0251 (2013.01); B21B 2001/228 (2013.01); B21B 2263/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for producing a sheet steel skin-pass rolled with a deterministic surface structure, comprising the following steps:
providing a sheet steel,
skin-pass rolling the sheet steel with a skin-pass roll, wherein the surface of the skin-pass roll which acts on the surface of the sheet steel is furnished with a deterministic surface structure such that, after the skin-pass rolling, the surface structure is impressed into the sheet steel starting from a surface of the sheet steel, wherein the surface structure has a multiplicity of indentations, wherein each indentation has an encircling flank region which leads, starting from the surface, down to a valley region, wherein, as viewed in a sectional illustration, each indentation has a depth profile which comprises two opposite flank subregions and a valley subregion which runs between the flank subregions and which connects the flank subregions, wherein the depth profile is divided into a left-hand part and a right-hand part of the depth profile, wherein the depth profile runs in an asymmetrical manner, wherein the flank subregions and valley subregions of the left-hand part and of the right-hand part of the depth profile differ in at least one of height and width, wherein, prior to the provision of the sheet steel, the sheet steel is coated by hot-dip coating, wherein the sheet steel is additionally provided with a process medium, wherein the process medium is applied with a surface weight of up to 2 g/m2.