Abstract: An unpacking device (4) for unpacking an additively manufactured three-dimensional object (2) from the unsolidified construction material (3) surrounding it after completion of an additive construction process, comprising a suction and/or blower device (12) which comprises at least one suction and/or blower tool (10) with a suction and/or blower tool body (12), wherein the geometric structural design of the suction and/or blower tool body (13) can be or is adapted to at least a partial area of the geometric structural design of an additively manufactured three-dimensional object (2) to be unpacked.

Abstract: A method for automatable or automated determination of the focal position of a laser beam (2) including the following steps:—arranging a substrate (10) in a first exposure position (z1), and exposing the substrate (10) with at least one exposure vector (13) in the first exposure position (z1),—moving the substrate (10) into several other exposure positions, in which the substrate (10) is respectively arranged in another certain z-axis position (zn) relative to the reference point (11), and respectively exposing the substrate (10) with at least one exposure vector (13) in the respective other exposure positions (zn),—optically evaluating the exposure pattern (12) by detecting different contrast sections in the exposure pattern (12) that can be optically detected,—determining the focal position of the laser beam (2) based on the detected optical contrast sections.

Abstract: The invention relates to a device for producing three-dimensional objects by successively solidifying layers of a construction material that can be solidified using radiation on the positions corresponding to the respective cross-section of the object, with a housing comprising a process chamber, a construction container situated therein, an irradiation device for irradiating layers of the construction material on the positions corresponding to the respective cross-section of the object, an application device for applying the layers of the construction material onto a carrying device within the construction container or a previously formed layer, a metering device for delivering the construction material, wherein the application device comprises a coating element which distributes the construction material delivered by the metering device as a thin layer in an application area along a linear application movement, characterized in that, at the end of a coating process for a layer when returning the coating ele

Abstract: An apparatus (1) for additive manufacturing of at least one three-dimensional object (2) by successive selective solidification of individual construction material layers (3) of a particulate construction material (4) that can be solidified by means of an energy beam (6) generated by a beam generation device (5), comprising at least one beam generation device (5) for the generation of an energy beam (6) and at least one coating device (9) for forming a construction material layer to be solidified in a construction plane (3), characterized by at least one fluidization device (10) provided for at least sectional fluidization of the construction material (4) that can be applied as a construction material layer to be selectively solidified and/or the construction material (4) applied as a construction material layer to be selectively solidified.

Abstract: Device for the additive production of three-dimensional components (2), namely a laser melting device or laser sintering device, in which a component (2) is produced by successive solidifying of individual layers (3) made from solidifiable construction material, by the effect of radiation (4), through melting of the construction material (5), wherein the dimensions and/or temperature of the melt area (6) generated by a point-shaped or line-shaped energy input can be captured by a sensor device (8) of a process monitoring system, and sensor values for evaluation of a component quality can be deduced therefrom, wherein the radiation (9) created by the melt area and used for the generation of the sensor values passes through the scanner used for the melt energy input, and is guided from there to the sensor device (8) of the process monitoring system, wherein an optical focus tracking device (20) is arranged in the radiation path used for generation of the sensor values between the scanner (10) and the sensor dev

Abstract: The invention relates to a device for producing three-dimensional objects by successive solidification of layers of a construction material that can be solidified using radiation on the positions corresponding to the respective cross-section of the object, comprising a construction chamber in which a carrying device for carrying the object is arranged with a height adjustable carrier, a radiation device for radiating layers of the construction material at positions corresponding to the respective cross-section of the object, and an image acquisition device for acquiring at least one image data record representing the construction chamber, wherein in the construction chamber at least one position mark for calibrating the image acquisition device is present. In addition, the invention relates to a method for performing a calibration.