Abstract: A device (1) for the additive production of three-dimensional objects (2) by successive, layered, selective irradiation and accompanying successive, layered, selective solidification of construction material layers of a construction material (3) that can be solidified by means of an energy beam, comprising: a plurality of irradiation devices (6 and 7), which are designed to generate an energy beam, a control device (16), which is designed to generate control information controlling the operation of the irradiation devices (6 and 7) and to control the operation of the irradiation devices (6 and 7) on the basis of generated control information, wherein the control device (16) is designed to generate first control information in order to control the operation of a first irradiation device, on the basis of which the first irradiation device generates a first energy beam (4a) for the successive, layered, selective solidification of a construction material layer.

Abstract: Irradiation device (5) for an 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 an energy source, which Irradiation device (5) comprises at least one irradiation unit (6-8), preferably an optical unit, arranged in a housing (9) of the Irradiation device (5), wherein a stream generating device (10) is provided that is adapted to guide a gas stream (11) that is adapted to be charged with residues present inside the housing (9) through the housing (9) of the Irradiation device (5) along a streaming path in which the gas stream (11) at least partially streams alongside or through the at least one irradiation unit (6-8) for removing residues from the housing (9).

Abstract: An apparatus for additively manufacturing three-dimensional objects may include a stream generating unit configured to generate a gas stream that flows through a process chamber of the apparatus, and a gas processing device that includes at least one gas determination unit configured to determine a composition of the gas stream. The gas processing device may be configured to guide the gas stream to at least one gas purification device and/or to the process chamber based at least in part the determined gas parameter.

Abstract: Method for operating at least one apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), whereby waste thermal energy (WTE) is generated during operation of the at least one apparatus (1), characterized in that the waste thermal energy (WTE) is at least partly used for generating electrical or mechanical energy (EE, ME) by means of at least one energy converting device (15) and/or the waste thermal energy (WTE) is at least partly used for operating at least one thermal energy consuming device.

Abstract: A method for additive manufacturing of a three-dimensional object (6) by successive, selective layer-by-layer solidification of layers of a construction material (9) by at least one energy beam, wherein the successive, selective solidification of the construction material (9) is carried out due to a data record describing the three-dimensional object to be additively manufactured (6), wherein construction material sections provided for sintering and/or melting on or melting through are heated in a temperature range lying below the solidification temperature of the construction material (9), wherein the heating of the construction material section(s) is carried out by at least one heating beam (17) either surrounding at least one main beam (18) provided for melting on or melting through in sections or going ahead or following the main beam (18), wherein the main beam (18) and the heating beam (17) are together guided synchronously along the surface of the construction material (9).

Abstract: Method for operating at least one apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), whereby waste thermal energy (WTE) is generated during operation of the at least one apparatus (1), characterized in that the waste thermal energy (WTE) is at least partly used for generating electrical or mechanical energy (EE, ME) by means of at least one energy converting device (15) and/or the waste thermal energy (WTE) is at least partly used for operating at least one thermal energy consuming device.

Abstract: Irradiation device (5) for an 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 an energy source, which Irradiation device (5) comprises at least one irradiation unit (6-8), preferably an optical unit, arranged in a housing (9) of the Irradiation device (5), wherein a stream generating device (10) is provided that is adapted to guide a gas stream (11) that is adapted to be charged with residues present inside the housing (9) through the housing (9) of the Irradiation device (5) along a streaming path in which the gas stream (11) at least partially streams alongside or through the at least one irradiation unit (6-8) for removing residues from the housing (9).

Abstract: Method for calibrating an 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 (3), comprising the steps: providing at least one calibration source (8, 9, 10) in a calibration plane (16) imaging the calibration source (8, 9, 10) to an actual position (18) in a determination plane (15) comprising at least two determination regions (19-27), preferably with given coordinates, in particular arranged in a grid-like pattern moving the image (28) of the calibration source (8, 9, 10) from the actual position (18) in at least one direction (29, 32, 34, 35) across the determination plane (15) until the image (28) passes from the actual determination region (19-27) into another determination region (19-27) determining a distance information indicating a defined distance (30, 33, 36, 37) the image (28) is moved determining the actual position (18) o

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 an energy source (4), comprising a build material application unit (9) that is adapted to receive, in particular powdery, build material (3) and adapted to apply at least one build material layer in a build plane (8), wherein a determination device (17) with at least one determination unit (18) connected in advance to the build material application unit (9) with respect to the build material flow direction (20), wherein the determination unit (18) is adapted to determine at least one build material parameter of at least one part of the build material (3) provided to the build material application unit (9).

Abstract: Apparatus 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 source, comprising a build material application unit that is adapted to receive, in particular powdery, build material and adapted to apply at least one build material layer in a build plane, wherein a determination device with at least one determination unit connected in advance to the build material application unit with respect to the build material flow direction, wherein the determination unit is adapted to determine at least one build material parameter of at least one part of the build material provided to the build material application unit.

Abstract: Support structure (11) for supporting a functional component of an apparatus (1) for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective consolidation of layers of a build material (3), wherein the support structure (11) comprises at least one support structure element which is built of a material or material structure having a coefficient of thermal expansion of 8×10?6 K?1 or below 8×10?6 K?1.

Abstract: Method for additively manufacturing at least one three-dimensional object (2) by means of successive layerwise selective irradiation and consolidation of layers (3) of build material (4) which can be consolidated by means of at least one energy beam (5), comprising the steps of: —providing a plurality of process parameter sets (PPS1-PPSn) each comprising a plurality of process parameters (PP1-PPn) allowing for a selective consolidation of a layer (3) of build material (4), whereby each process parameter set (PPS1-PPSn) results in specific properties of the microstructure of an area of the respective layer (3) of build material (4) which was selectively irradiated and consolidated on basis of the respective process parameter set (PPS1-PPSn); —using at least two different process parameter sets (PPS1-PPSn) of the plurality of process parameter sets (PPS1-PPSn) for additively manufacturing at least one three-dimensional object (2) by means by means of the successive layerwise selective irradiation and consolidat

Abstract: Plant (1) for additively manufacturing of three-dimensional objects (2), comprising: at least one build apparatus (3) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (4) which can be consolidated by means of an energy beam (5) and/or at least one apparatus (3) adapted to perform at least one pre-processing step of an additive manufacturing process and/or at least one apparatus (3) adapted to perform at least one post-processing step of an additive manufacturing process, whereby at least one control unit (6, 19, 22, 28) that is adapted to control a parameter of a fluid (7, 27) flowing alongside and/or through at least one component (8, 17, 20, 21) of the apparatus (3).

Abstract: Method for operating at least one apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), whereby waste thermal energy (WTE) is generated during operation of the at least one apparatus (1), characterized in that the waste thermal energy (WTE) is at least partly used for generating electrical or mechanical energy (EE, ME) by means of at least one energy converting device (15) and/or the waste thermal energy (WTE) is at least partly used for operating at least one thermal energy consuming device.

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 (1) comprising: —a process chamber (8) comprising a build plane (7) in which layers of build material (3) are successively layerwise selectively irradiated and consolidated by means of an energy beam (4) during operation of the apparatus (1); —a gas stream generating device (9) configured to generate a gas stream at least partly streaming through the process chamber (8) during operation of the apparatus (1), the gas stream being capable of being charged with non-consolidated build material particles (25); and —an optical determining device (12) configured to optically determine at least one parameter suitable for characterizing the streaming properties of the gas stream streaming through the process chamber (8).

Abstract: A device (1) for the additive production of three-dimensional objects (2) by successive, layered, selective irradiation and accompanying successive, layered, selective solidification of construction material layers of a construction material (3) that can be solidified by means of an energy beam, comprising: a plurality of irradiation devices (6 and 7), which are designed to generate an energy beam, a control device (16), which is designed to generate control information controlling the operation of the irradiation devices (6 and 7) and to control the operation of the irradiation devices (6 and 7) on the basis of generated control information, wherein the control device (16) is designed to generate first control information in order to control the operation of a first irradiation device, on the basis of which the first irradiation device generates a first energy beam (4a) for the successive, layered, selective solidification of a construction material layer.

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: A method for additive manufacturing of a three-dimensional object (6) by successive, selective layer-by-layer solidification of layers of a construction material (9) by at least one energy beam, wherein the successive, selective solidification of the construction material (9) is carried out due to a data record describing the three-dimensional object to be additively manufactured (6), wherein construction material sections provided for sintering and/or melting on or melting through are heated in a temperature range lying below the solidification temperature of the construction material (9), wherein the heating of the construction material section(s) is carried out by at least one heating beam (17) either surrounding at least one main beam (18) provided for melting on or melting through in sections or going ahead or following the main beam (18), wherein the main beam (18) and the heating beam (17) are together guided synchronously along the surface of the construction material (9).

Abstract: A separating apparatus provided for separating particulate construction material components from a gas flow containing particulate construction material components arising related to the process in a process chamber of an apparatus for additive manufacturing of three-dimensional objects by successive selective exposure and thus solidification of individual construction material layers of a construction material that can be solidified by means of an energy beam, comprising: —a housing structure defining a housing interior that is or can at least sectionally be run through by a respective gas flow, —at least one filter device arranged or formed in the housing interior (9) which comprises at least one filter element for separating the particulate construction material components from a respective gas flow, —at least one drying device which comprises at least one drying element for drying the gas flow.

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.