Sinterable feedstock for use in 3d printing devices
AssigneeAmril AG
InventorsPeter Daute, Manfred Jaeckel, Juergen Waldmann
Life of this patent
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Abstract
The present invention relates to a filament suitable to be used in a 3D printing device, wherein the filament comprises a metal and/or ceramic powder, a thermoplastic binder and additives. The invention also relates to a process for producing a shaped body comprising the step of printing a shaped green body using the filament according to the invention. Also provided is the use of a filament according to the invention in a 3D printing device and a green body producible by mixing a metal and/or ceramic powder and a thermoplastic binder. The invention also relates to the use of a binder of the invention for the production of a filament for 3D printing devices.
Claims18
1-20. (canceled)
A 3D printing device comprising a filament comprising
- (a) a metal and/or ceramic powder;
- (b) a thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer;
- and
- (c) between 0 and 10 wt % of additives based on the total weight of the filament
- and wherein the filament has a Shore A hardness of at least 85 at 20° C. and
- wherein the at least one plasticizer is a mixture of esters and wherein the mixture of esters comprises an ester which is solid at 20° C. and an ester that is liquid at 20° C.
A method for making a green body comprising the steps of a) mixing a metal and/or ceramic powder b) a thermoplastic binder comprising a thermoplastic polymer and at least one plasticizer;
- and c) between 0 and 10 wt % of additives based on the total weight of the filament and wherein the shore A hardness value of the binder comprised in the filament is between 85 to 95.
A method of making a 3D printing device comprising the step making a filament by the mixing the thermoplastic binder as defined in claim 1 and between 0 and 10 wt % of additives based on the total weight of the filament and wherein the filament has a Shore A hardness of at least 85 at 20° Cthe binder has a shore A hardness value is between 85 to 95.
Dependencies are inferred from the claim text.