US 11,752,532 B2
Metal substrate provided with tailored surface textures and method for applying such textures on metal substrates
Pieter Baart, Heiloo (NL); Jan Bottema, Santpoort-Zuid (NL); and David Thomas Allan Matthews, Borne (NL)
Assigned to TATA STEEL NEDERLAND TECHNOLOGY B.V., Velsen-Noord (NL)
Appl. No. 16/975,919
Filed by TATA STEEL NEDERLAND TECHNOLOGY B.V., Velsen-Noord (NL)
PCT Filed Mar. 15, 2019, PCT No. PCT/EP2019/056521
§ 371(c)(1), (2) Date Aug. 26, 2020,
PCT Pub. No. WO2019/175370, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 18162277 (EP), filed on Mar. 16, 2018.
Prior Publication US 2020/0406322 A1, Dec. 31, 2020
Int. Cl. B21B 1/22 (2006.01); B23K 26/352 (2014.01); B32B 3/00 (2006.01); C23C 2/26 (2006.01); B32B 3/28 (2006.01); B32B 3/30 (2006.01); F16S 1/00 (2006.01); F16S 1/04 (2006.01); F16S 1/06 (2006.01); B21B 1/26 (2006.01); B23K 101/18 (2006.01); B23K 101/00 (2006.01); B23K 101/16 (2006.01)
CPC B21B 1/227 (2013.01) [B21B 1/26 (2013.01); B23K 26/355 (2018.08); B32B 3/28 (2013.01); B32B 3/30 (2013.01); C23C 2/26 (2013.01); F16S 1/00 (2013.01); F16S 1/04 (2013.01); F16S 1/06 (2013.01); B21B 2001/228 (2013.01); B21B 2261/14 (2013.01); B23K 2101/006 (2018.08); B23K 2101/16 (2018.08); B23K 2101/18 (2018.08); B23K 2101/185 (2018.08); Y10T 428/12993 (2015.01); Y10T 428/24942 (2015.01); Y10T 428/249921 (2015.04)] 20 Claims
OG exemplary drawing
 
1. A metal substrate, provided with different texture patterns over the surface area of the metal substrate,
wherein each said texture pattern comprises dimples which are recesses with
a diameter in a range of 25-60 μm,
a depth in a range of 2-6 μm and
a density in a range of 180-600 dimples per square millimetre,
wherein each said dimple in each texture pattern is spaced from each other said dimple to provide surface coverage of 30% to 80%;
wherein the dimples respectively have a shape selected from the group consisting of round shape and oval shape;
wherein the textures of said different texture patterns differ with respect to each other in at least one of diameter of the dimples, the depth of the dimples, number of dimples per surface area, positioning of the dimples, and spacing of the dimples with respect to each other.