A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.

A three dimensional printing system includes functional modules including a source of empty support trays, a print engine, a spinning apparatus, and a transport system. The source of empty support trays includes at least one support tray which includes a lower planar portion and an upper datum portion. The print engine is configured to receive the empty support tray and to form a three dimensional article of manufacture onto the lower planar portion thereby providing a full support tray. The spinning apparatus includes a plurality of tray holders arranged around a vertical axis of rotation and a motor system for rotating the tray holders about the vertical axis of rotation. The plurality of tray holders include a tray holder having receiving surfaces for receiving the upper datum portion of the full support tray. The transport system is configured to transfer support trays between functional modules.

A production line for making tangible products by layerwise manufacturing. The production line includes: first and second movable carriers, each carrier comprising a transporter for transporting the carrier, and a building platform for supporting a tangible product, one or more deposition heads for depositing construction material in a deposition direction onto the building platforms, and a conveyor for conveying the first and second building platform towards the deposition head and away from the deposition head repeatedly. The first and the second transporter are movable at variable speeds relative to each other along a trajectory of the conveyor. Optionally, the height of the building platforms can be adjusted.

In an aspect, multiple metallic base materials are mixed into a user-controlled multimetallic mixture and extruded into a net shape, which is thermally processed into a multimetallic and/or alloyed object. In another aspect, a superstructure is fabricated around an object, but physically isolated from the object, with a shape facilitating robotic handling of the superstructure, along with removal of powder from the object, after a three-dimensional printing process. In another aspect, a ceramic precursor is used to create a separable interface between a support structure and a sinterable object. More specifically, a sinterable structure is fabricated from a sinterable powder in an aqueous binder, and an interface layer is formed by depositing a ceramic precursor in a nonaqueous solution onto the sinterable structure. When the ceramic precursor is exposed to water in the aqueous binder, the ceramic can precipitate to form an unsinterable, ceramic interface layer between sinterable structures.

A method of making an object includes partially additively manufacturing the object onto a removable platen using an additive manufacturing system, removing the platen with the object from a base of the additive manufacturing system, processing the object on the platen, inserting the platen with the object that has been processed into the additive manufacturing system or a different system, mating the platen with the object that has been processed to the base of the additive manufacturing system or a base of the different system using a registration feature, and manufacturing a layer onto the object that has been processed.

A method of making an object includes partially additively manufacturing the object onto a removable platen using an additive manufacturing system, removing the platen with the object from a base of the additive manufacturing system, processing the object on the platen, inserting the platen with the object that has been processed into the additive manufacturing system or a different system, mating the platen with the object that has been processed to the base of the additive manufacturing system or a base of the different system using a registration feature, and manufacturing a layer onto the object that has been processed.

The present application discloses an additive manufacturing chamber, an additive manufacturing module and an additive manufacturing apparatus therewith. Powder discharging openings are formed at a lower portion of the additive manufacturing chamber, and the powders in the additive manufacturing chamber are discharged down via gravitation. The present application further includes a vibrational unit for vibrating the powders so as to accelerate downward powder discharging via vibration of the vibrational unit. The additive manufacturing apparatus can include a main system and a cleaning transportation system separated from the main system. The present application solves the conventional problems of excessive consumed energy, large required installation and operational space, inconvenience of powder removing and swirled raised powder haze in the environment.

A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.

A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.

The invention relates to a device (1) for producing three-dimensional workpieces (15), comprising a carrier (7) for receiving raw material powder (9), a build chamber wall (11, 11a, 11b) which extend substantially vertically and which is adapted to laterally delimit and support the raw material powder (9) applied to the carrier (7); an irradiation unit (17) for selectively irradiating the raw material powder (9) applied to the carrier (7) with electromagnetic radiation or particle radiation in order to produce on the carrier (7) a workpiece (15) manufactured from the raw material powder (9) by an additive layer building method, wherein the irradiation unit (17) comprises at least one optical element; and a vertical movement device (31) which is adapted to move the irradiation unit (17) vertically relative to the carrier (7). The build chamber wall (11, 11a, 11b) and the carrier (7) are adapted to be connected to one another in a stationary manner during the vertical movement of the irradiation unit (17) so that the vertical movement takes place relative to the carrier (7) and relative to the build chamber wall (11, 11a, 11b).