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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11104979 B1

PDFFull Text
Date of Patent:
Aug. 31, 2021

Filed:

Apr. 06, 2017

Three dimensional printing of cermet or cemented carbide

Applicant:

Sandvik Intellectual Property Ab, Sandviken, SE;

Inventors:

Carl-Johan Maderud, Stockholm, SE;

John De Flon, Saltsjo-Duvnas, SE;

Assignee:

SANDVIK INTELLECTUAL PROPERTY AB, Sandviken, SE;

Attorney:

Corinne R. Gorski

Primary Examiner:

George Wyszomierski

Int. Cl.
CPC ...
B22F 3/15 (2006.01); C22C 29/06 (2006.01); C22C 1/05 (2006.01); B22F 10/10 (2021.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B22F 1/00 (2006.01); B23B 27/14 (2006.01); B23C 5/16 (2006.01); B24D 3/00 (2006.01); B22F 3/10 (2006.01); E21C 35/183 (2006.01); E21B 10/46 (2006.01); B33Y 80/00 (2015.01); B22F 5/00 (2006.01);
U.S. Cl.
CPC ...
C22C 29/06 (2013.01); B22F 1/0011 (2013.01); B22F 1/0059 (2013.01); B22F 3/1021 (2013.01); B22F 3/15 (2013.01); B22F 10/10 (2021.01); B23B 27/148 (2013.01); B23C 5/16 (2013.01); B24D 3/008 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C22C 1/051 (2013.01); B22F 2005/001 (2013.01); B22F 2207/03 (2013.01); B22F 2301/15 (2013.01); B22F 2302/10 (2013.01); B22F 2304/10 (2013.01); B23B 2222/16 (2013.01); B23C 2222/16 (2013.01); B33Y 80/00 (2014.12); E21B 10/46 (2013.01); E21C 35/183 (2013.01); E21C 35/1835 (2020.05);
Abstract

The present invention relates to a powder mixture for three-dimensional (3D) printing of a cermet or a cemented carbide body. The powder mixture includes 65-85 wt % of porous cemented carbide or cermet particles of a median particle size (D50) of 10-35 μm, and 15-35 wt % of a dense cemented carbide or cermet particles of a median particle size (D50) of 3-10 μm. The present invention also relates to a method of making a cermet or cemented carbide body, the method including the steps of forming the powder mixture, 3D printing a body using the powder mixture and a printing binder and thereby forming a 3D printed cermet or cemented carbide green body and sintering the green body and to form a cermet or cemented carbide body.

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