Sandvik Intellectual Property Ab

John De Flon

Carl-Johan Maderud

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 &#x3bc;m, and 15-35 wt % of a dense cemented carbide or cermet particles of a median particle size (D50) of 3-10 &#x3bc;m. 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.

Three dimensional printing of cermet or cemented carbide

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 &#x3c;10 &#x3bc;m in diameter. The present invention also relates to a method of making a cermet or cemented carbide body. The method includes the steps of forming the powder, 3D printing a body using the powder together with a printing binder to form a 3D printed cermet or cemented carbide green body and subsequently sintering the green body to form a cermet or cemented carbide body.

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Saltsjo-Duvnas, Sweden

John De Flon