US 11,786,968 B2
Method for manufacturing a sintered body
Micael Baudin, Uppsala (SE); and Jan Gravningsbraten, Angelsberg (SE)
Assigned to SECO TOOLS AB, Fagersta (SE)
Appl. No. 17/53,337
Filed by SECO TOOLS AB, Fagersta (SE)
PCT Filed Apr. 26, 2019, PCT No. PCT/EP2019/060783
§ 371(c)(1), (2) Date Nov. 5, 2020,
PCT Pub. No. WO2019/214972, PCT Pub. Date Nov. 14, 2019.
Claims priority of application No. 18171300 (EP), filed on May 8, 2018.
Prior Publication US 2021/0229175 A1, Jul. 29, 2021
Int. Cl. B22F 3/24 (2006.01); B22F 3/10 (2006.01); B22F 5/00 (2006.01); B41M 5/26 (2006.01); B23K 26/362 (2014.01); B22F 3/22 (2006.01)
CPC B22F 3/24 (2013.01) [B22F 3/10 (2013.01); B22F 3/225 (2013.01); B22F 5/00 (2013.01); B23K 26/362 (2013.01); B41M 5/262 (2013.01); B22F 2003/245 (2013.01); B22F 2005/001 (2013.01); B22F 2301/15 (2013.01); B22F 2302/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a sintered body having one or more hard constituents in a form of a metal carbide with the general composition (Ti, Nb, Ta, W)C or combinations thereof, or in form of metal carbonitrides, in a metallic binder phase, the method comprising:
forming a green body from a powder composition including at least the one or more hard constituents, the metallic binder phase, and an organic binder system;
forming a pattern in a surface of the green body to provide a tag enabling individual identification of the green body, wherein forming the pattern comprises using a laser to selectively burn off the organic binder system with a marking speed of 500-3000 mm/s, thereby forming indentions in the surface; and
sintering the green body with the tag to form a sintered body having a smaller volume than the green body, wherein the pattern is formed such that the tag is readable after the sintering operation.