Abstract: A system distributes raw material powder from a reservoir to a plurality of at least two additive manufacturing machines. The system includes at least one gas flow drive and at least two conveying lines for conveying the powder to the at least two manufacturing machines by a gas flow driven by the at least one gas flow drive. The system further includes a feeding manifold for feeding the at least two conveying lines with the raw material powder. The feeding manifold is configured and arranged to selectively guide, controlled by at shut-off valves, the raw material powder into one of the at least two conveying lines. Each of the shut-off valves is arranged at the feeding manifold and is configured to selectively close and open for selectively feeding the at least two conveying lines with the raw material powder.

Abstract: The invention is directed to a powder supply system (1) for use in an apparatus (100) for producing a three-dimensional work piece by irradiating layers of a raw material powder (4) with electromagnetic or particle radiation.

Abstract: A powder container for handling powder in an additive manufacturing process. The container includes a powder vessel with a powder inlet in an upper portion thereof and a powder outlet in a lower portion thereof, a set of n sensors configured to determine a set of n observables, a first actuator configured to drive a first mechanical function of the powder container and optionally—to provide for additional safety as well as versatility a second actuator configured to drive a second mechanical function of the powder container and/or a multi-port connector configured to be connected with a corresponding connector of a powder handling station in an additive manufacturing process.

Abstract: A method for powder removal from a three-dimensional workpiece generated via additive manufacturing is provided. The method comprises mounting a build cylinder to a build cylinder fixture. The build cylinder comprises a base plate holding the three-dimensional workpiece and sidewalls separably attached to the base plate. The build cylinder comprises residual powder from an additive manufacturing process of the three-dimensional workpiece. The method further comprises attaching a foil to the build cylinder fixture and/or to the base plate. Further, a device for powder removal from a three-dimensional workpiece generated via additive manufacturing is provided.

Abstract: The invention is directed to a powder supply system (1) for use in an apparatus (100) for producing a three-dimensional work piece by irradiating layers of a raw material powder (4) with electromagnetic or particle radiation.

Abstract: A system distributes raw material powder from a reservoir to a plurality of at least two additive manufacturing machines. The system includes at least one gas flow drive and at least two conveying lines for conveying the powder to the at least two manufacturing machines by a gas flow driven by the at least one gas flow drive. The system further includes a feeding manifold for feeding the at least two conveying lines with the raw material powder. The feeding manifold is configured and arranged to selectively guide, controlled by at shut-off valves, the raw material powder into one of the at least two conveying lines. Each of the shut-off valves is arranged at the feeding manifold and is configured to selectively close and open for selectively feeding the at least two conveying lines with the raw material powder.

Abstract: The invention relates to a device for removing powder and/or particles from a powder bed. The device comprises a rotatably mounted roller having a porous outer wall and comprises a plurality of chambers formed inside the roller. The device also comprises a connection for negative-pressure supply that is designed to supply at least one of the chambers with negative pressure at a given point in time. The at least one of the chambers has an opening which is suitable for supplying the chamber with negative pressure.

Abstract: The invention relates to a seal system (100, 200, 300) for an installation (400) for producing a three-dimensional workpiece by means of an additive layer manufacturing method, the seal system (100, 200, 300) comprising: a first seal (102), which is configured to seal an intermediate space (116) at a first periphery (108) between a process chamber inner wall (110) and a powder-material-supporting plate assembly (112) in a process chamber (410) of the installation (400); and a second seal (104), which is configured to seal the intermediate space (116) at a second periphery (114) between the process chamber inner wall (110) and the powder-material-supporting plate assembly (112) in the process chamber (410) of the installation (400), the first seal (102) being spaced apart from the second seal (104) such that, when the intermediate space (116) is sealed between the process chamber inner wall (110) and the plate assembly (112) by means of the first seal (102) and the second seal (104), a channel (106) is formed

Abstract: The invention is directed to a powder supply system (1) for use in an apparatus (100) for producing a three-dimensional work piece by irradiating layers of a raw material powder (4) with electromagnetic or particle radiation.

Abstract: The invention relates to a seal system (100, 200, 300) for an installation (400) for producing a three-dimensional workpiece by means of an additive layer manufacturing method, the seal system (100, 200, 300) comprising: a first seal (102), which is configured to seal an intermediate space (116) at a first periphery (108) between a process chamber inner wall (110) and a powder-material-supporting plate assembly (112) in a process chamber (410) of the installation (400); and a second seal (104), which is configured to seal the intermediate space (116) at a second periphery (114) between the process chamber inner wall (110) and the powder-material-supporting plate assembly (112) in the process chamber (410) of the installation (400), the first seal (102) being spaced apart from the second seal (104) such that, when the intermediate space (116) is sealed between the process chamber inner wall (110) and the plate assembly (112) by means of the first seal (102) and the second seal (104), a channel (106) is formed