Abstract: The invention relates to a device (1) for the additive production of three-dimensional objects (2) by successive, layered, selective exposure 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 (4), comprising a flow device (11), which is designed to form a first fluid flow (FS1) that flows, particularly in a circuit-like manner, along at least one functional component of the device (1), wherein the first fluid flow (FS1) is laden with contaminants, particularly particulate contaminants, which are process-created, wherein the flow device (11) is designed to form a second fluid flow (FS2), wherein the second fluid flow (FS2) flows between the first fluid flow (FS1) and the at least one functional component of the device (1), directly along the surface of the at least one functional component of the device (1).

Abstract: Device (1) for determining at least one component parameter, particularly the density and/or a density-related parameter, of a plurality of, particularly additively manufactured, components (3), the device (1) comprising:—a supporting unit (2) configured to support a plurality of components (3) whose at least one component parameter is to be determined, the supporting unit (2) comprising a supporting unit base body (4) comprising a plurality of receiving sections (5) in a defined spatial relationship, whereby at least one receiving section (5) is configured to detachably receive a component (3) whose component parameter is to be determined; one component parameter of components (3) whose at least one component parameter is to be determined being received in respective receiving sections (5) of the supporting unit (2).

Abstract: Device (1) for determining at least one component parameter, particularly the density and/or a density-related parameter, of a plurality of, particularly additively manufactured, components (3), the device (1) comprising:—a supporting unit (2) configured to support a plurality of components (3) whose at least one component parameter is to be determined, the supporting unit (2) comprising a supporting unit base body (4) comprising a plurality of receiving sections (5) in a defined spatial relationship, whereby at least one receiving section (5) is configured to detachably receive a component (3) whose component parameter is to be determined; one component parameter of components (3) whose at least one component parameter is to be determined being received in respective receiving sections (5) of the supporting unit (2).

Abstract: Method for operating an 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 at least one process parameter of the apparatus (1), in particular a key performance parameter, is automatically repeatedly determined on basis of a machine-implemented determination routine, wherein the at least one determined process parameter is stored and automatically evaluated with respect to at least one evaluation criterion.

Abstract: Apparatus (13) for additively manufacturing of three-dimensional objects (14) by means of successive layerwise selective irradiation and consolidation of layers of a build material (15) which can be consolidated by means of an energy beam (16), wherein the apparatus (13) comprises a measuring unit (1) configured to measure a path velocity of the energy beam (16) generated by a beam generating unit, wherein the measuring unit (1) comprises at least two measuring means (9, 10) located in measuring positions (3, 4) at a defined distance (5).

Abstract: The invention relates to a device (1) for the additive production of three-dimensional objects (2) by successive, layered, selective exposure 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 (4), comprising a flow device (11), which is designed to form a first fluid flow (FS1) that flows, particularly in a circuit-like manner, along at least one functional component of the device (1), wherein the first fluid flow (FS1) is laden with contaminants, particularly particulate contaminants, which are process-created, wherein the flow device (11) is designed to form a second fluid flow (FS2), wherein the second fluid flow (FS2) flows between the first fluid flow (FS1) and the at least one functional component of the device (1), directly along the surface of the at least one functional component of the device (1).