Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of at least one energy beam (4), which apparatus (1) comprises an irradiation device (5) with at least one beam guiding element (7) on which the energy beam (4) is partially reflected, wherein a first beam part (10) extends between the beam guiding element (7) and a build plane (18) of the apparatus (1) and a second beam part (11) is transmitted through or scattered at the beam guiding element (7), wherein a determination device (12) is provided that is adapted to determine at least one parameter of the second beam part (11).

Abstract: Method for calibrating at least one apparatus (1) for additively manufacturing three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam that can be generated via an irradiation element of an irradiation device (7) of the apparatus (1), wherein a determination unit (2) is provided for determining at least one parameter of radiation (3) inside a process chamber (5), wherein a calibration beam source (4) is arranged or generated inside the process chamber (5) of the apparatus (1), in particular in a build plane (9) or a region above the build plane (9), wherein at least one parameter, in particular the intensity, of radiation (3) emitted by the calibration beam source (4) is determined via the determination unit (2).

Abstract: An apparatus for additively manufacturing three-dimensional objects may include a first detection device configured to detect a first process parameter during operation of the apparatus, and to generate a first data set comprising information relating to the first process parameter, a second detection device configured to detect a second process parameter during operation of the apparatus, and to generate a second data set comprising information relating to the second process parameter; and a data processing device configured to determine a mutual dependency between the first process parameter and the second process parameter based at least in part on the first data set and the second data set. The mutual dependency may include a possible influence or a real influence of the first process parameter on the second process parameter. The first process parameter may include a chemical parameter and/or a physical parameter of an atmosphere within a process chamber of the apparatus.

Abstract: An apparatus (1) for manufacturing of three-dimensional objects (2), especially SLM or SLS apparatuses (selective laser melting apparatus or selective laser sintering apparatus), significantly comprising a construction room (4) arranged in a housing (3) of the apparatus (1).

Abstract: An apparatus for additively manufacturing three-dimensional objects may include a first detection device configured to detect a first process parameter during operation of the apparatus, and to generate a first data set comprising information relating to the first process parameter, a second detection device configured to detect a second process parameter during operation of the apparatus, and to generate a second data set comprising information relating to the second process parameter; and a data processing device configured to determine a mutual dependency between the first process parameter and the second process parameter based at least in part on the first data set and the second data set. The mutual dependency may include a possible influence or a real influence of the first process parameter on the second process parameter. The first process parameter may include a chemical parameter and/or a physical parameter of an atmosphere within a process chamber of the apparatus.

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), the apparatus comprising: a first detection device (15) adapted to detect at least one first process parameter (P1), particularly during operation of the apparatus (1), and to generate a first data set (DS1) comprising information relating to the detected first process parameter (P1); at least one second detection device (16) adapted to detect at least one second process parameter (P2), particularly during operation of the apparatus (1), and to generate at least one second data set (DS2) comprising information relating to the detected second process parameter (P2); a data processing device (18) adapted to link the first data set (DS1) with the at least one second data set (DS1).

Abstract: Method for calibrating at least one apparatus (1) for additively manufacturing three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam that can be generated via an irradiation element of an irradiation device (7) of the apparatus (1), wherein a determination unit (2) is provided for determining at least one parameter of radiation (3) inside a process chamber (5), wherein a calibration beam source (4) is arranged or generated inside the process chamber (5) of the apparatus (1), in particular in a build plane (9) or a region above the build plane (9), wherein at least one parameter, in particular the intensity, of radiation (3) emitted by the calibration beam source (4) is determined via the determination unit (2).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of at least one energy beam (4), which apparatus (1) comprises an irradiation device (5) with at least one beam guiding element (7) on which the energy beam (4) is partially reflected, wherein a first beam part (10) extends between the beam guiding element (7) and a build plane (18) of the apparatus (1) and a second beam part (11) is transmitted through or scattered at the beam guiding element (7), wherein a determination device (12) is provided that is adapted to determine at least one parameter of the second beam part (11).

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects (2) by means of successive layerwise selective irradiation (8) and consolidation of layers of a build material (3) which can be consolidated by means of an energy source, comprising a determination device (13) adapted to determine at least one parameter of radiation (8) emitted from a build plane (6), wherein an optical unit (19) is provided that is adapted to guide at least a part of the radiation (8) emitted from the build plane (6) to a determination unit (14, 15) of the determination device (13) and to reduce radiation (10) emitted from at least a central part of a consolidation zone (9) of the build plane (6) in the at least one guided part of the radiation (8).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers (2) of a powdered build material (3) which can be consolidated by means of an energy beam (4), the apparatus (1) comprising: an irradiation device (8) configured to generate at least a first and a second energy beam (4, 9), whereby the second energy (9) beam follows the path of the first energy beam (4) with a defined local and/or time offset; a detection device (11) configured to detect radiation (12) emitted from a portion of a layer (2) of powdered build material (3) which was selectively irradiated by the first energy beam (4), an evaluation device (14) configured to evaluate detected radiation (12) emitted from a portion of a layer (2) of powdered build (3) material which was selectively irradiated by the first energy beam (4).

Abstract: Apparatus (1) for additively manufacturing three-dimensional objects (2) by successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), the apparatus comprising: a first detection device (15) adapted to detect at least one first process parameter (P1), particularly during operation of the apparatus (1), and to generate a first data set (DS1) comprising information relating to the detected first process parameter (P1); at least one second detection device (16) adapted to detect at least one second process parameter (P2), particularly during operation of the apparatus (1), and to generate at least one second data set (DS2) comprising information relating to the detected second process parameter (P2); a data processing device (18) adapted to link the first data set (DS1) with the at least one second data set (DS1).

Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam (4), wherein a detection device (13) is provided that is configured to detect splash particles (8-10) generated by at least partially evaporating build material (3) in a consolidation zone (7) in which the energy beam (4) irradiates the build material (3).

Abstract: Exposure device (1) for an apparatus (2) for additive manufacturing of three-dimensional objects (3) by progressive layer-by-layer selective exposure and, associated therewith, solidification of structural material layers composed of a solidifiable structural material (6) by means of an energy beam (5). The exposure device (1) comprises an energy beam generating device (4), a beam deflection device (7), and a beam path (9) formed by at least one optically conductive element or comprising at least one such element, and also a position detection device (13).

Abstract: An apparatus (1) for manufacturing of three-dimensional objects (2), especially SLM or SLS apparatuses (selective laser melting apparatus or selective laser sintering apparatus), significantly comprising a construction room (4) arranged in a housing (3) of the apparatus (1).

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.