Patent ID: 11969791
Assignee: ADDUP
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  Y | IPC B

Claim 0:
1. A powder bed deposition additive manufacturing machine comprising:
a manufacturing enclosure comprising a working plane comprising a working zone, the working zone defined by a manufacturing sleeve extending vertically under the working plane and a manufacturing plate sliding vertically inside the manufacturing sleeve, allowing an overlay of different powder layers to be received;
a main powder tank positioned outside the manufacturing enclosure;
a powder dispensing device positioned inside the manufacturing enclosure;
a powder spreading device positioned inside the manufacturing enclosure; and
a beam emitted by a source and making it possible to selectively fuse a layer of additive manufacturing powder spread over the working zone,
wherein the powder dispensing device comprises
a powder intake extending from the main powder tank into the manufacturing enclosure allowing powder to be delivered on top of the working plane,
a mobile powder tank that is movably mounted above the working plane and that can be displaced to under the powder intake so as to be filled with powder, a bottom part of the mobile powder tank comprising a powder dispensing point,
wherein a top part of the mobile powder tank comprises a supply aperture allowing the mobile powder tank to be supplied with powder from the powder intake, the top part of the mobile powder tank comprises a lateral wall, and the supply aperture is provided in the lateral wall, and

a control device controlling the flow of powder via the powder dispensing point during a displacement of the mobile powder tank,

wherein the mobile powder tank is mounted on a weighing sensor, and
wherein the powder spreading device is in a form of a scraper or a roller mounted on a carriage, and
wherein the carriage is mounted to move in a longitudinal direction, and the mobile powder tank is mounted to move by translation in a transverse direction perpendicular to the longitudinal direction along the carriage of the powder spreading device.