US 12,390,855 B2
Method for producing a green body and method for further processing the green body into a machining segment for the dry machining of concrete materials
Marcel Sonderegger, Balgach (CH); and Cliff Toldo, Vaduz (LI)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 17/415,289
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Dec. 21, 2019, PCT No. PCT/EP2019/086882
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/128085, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18215548 (EP), filed on Dec. 21, 2018; and application No. 18215606 (EP), filed on Dec. 21, 2018.
Prior Publication US 2022/0055248 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B28B 3/02 (2006.01); B22F 3/14 (2006.01); B22F 5/00 (2006.01); B22F 7/06 (2006.01)
CPC B22F 3/14 (2013.01) [B22F 5/00 (2013.01); B22F 7/06 (2013.01); B28B 3/025 (2013.01); B22F 2005/001 (2013.01); B22F 2005/005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for producing a green body for a machining segment, wherein the machining segment is connectable to a basic body of a machining tool by an underside of the machining segment, comprising the steps of:
placing first hard material particles in a defined particle pattern in respective depressions of a first press punch, wherein the depressions have an arrangement which corresponds to the defined particle pattern of the first hard material particles and wherein a number of the first hard material particles that are placed in the defined particle pattern in the respective depressions of the first press punch is equal to a number of the depressions of the first press punch;
applying a first matrix material to the first hard material particles that are placed in the defined particle pattern in the depressions that have the arrangement which corresponds to the defined particle pattern of the first press punch; and
applying a layer of the first matrix material into the depressions of the first press punch prior to the placing of the first hard material particles in the depressions such that there is no direct contact between the first hard material particles and the first press punch.