公开(公告)号：US11104979B2

公开(公告)日：2021-08-31

申请号：US16093541

申请日：2017-04-06

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Carl-Johan Maderud ,  John De Flon

IPC: B22F3/15 ,  C22C29/06 ,  C22C1/05 ,  B22F10/10 ,  B33Y10/00 ,  B33Y70/00 ,  B22F1/00 ,  B23B27/14 ,  B23C5/16 ,  B24D3/00 ,  B22F3/10 ,  E21C35/183 ,  E21B10/46 ,  B33Y80/00 ,  B22F5/00

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.

公开(公告)号：US11085106B2

公开(公告)日：2021-08-10

申请号：US16093554

申请日：2016-11-30

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： John De Flon

IPC: B22F3/10 ,  C22C29/06 ,  C22C1/05 ,  B22F10/10 ,  B33Y10/00 ,  B33Y70/00 ,  B22F1/00 ,  B22F3/15 ,  B23B27/14 ,  B23C5/16 ,  B24D3/00 ,  E21C35/183 ,  E21B10/46 ,  B33Y80/00 ,  B22F5/00

Abstract: The present invention relates to a powder for three-dimensional printing of a cermet or a cemented carbide body. The powder has 30-70 vol % of the particles that are