Concept Laser Gmbh

Rösler Holding Gmbh

Moritz Beck

Christian Dicken

Frank Pfister

Manuel Laux

Sarah Ulbrich

Denise Hiemann

Christoph Bätz

An apparatus for additively manufacturing three-dimensional objects by successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by an energy beam, includes an irradiation device including a first and a second irradiation unit adapted to guide a first and a second energy beam. At least two first and two second calibration patterns are generated in at least two different first positions via the first energy beam and the at least two second calibration patterns are generated in at least two different second positions via the second energy beam and position information are determined relating to the positions of the at least two first and second calibration patterns and calibration information are generated relating to a calibration status of the irradiation device based on the determined position information.

Method for calibrating an irradiation device for an apparatus for additively manufacturing three-dimensional objects

To treat parts printed by means of 3D printing from the powder bed, they are inserted into a trough belt conveyor which transports and circulates the parts and in which the parts are acted on by a fluid jet during the transport.

Method and apparatus for treating parts

An adjustment to an irradiation parameter corresponding to a first irradiation unit and/or a second irradiation unit of an irradiation device of an additive manufacturing apparatus may be performed based at least in part on a simulation. The simulation may include simulating generation of a plurality of first calibration patterns by the first irradiation unit and a plurality of second calibration patterns by the second irradiation unit with a simulated change to the irradiation parameter of the irradiation device, and determining a calibration quality value based at least in part on position information relating to the plurality of first calibration patterns and the plurality of second calibration patterns. The calibration quality value may include an indication as to whether a calibration quality of the apparatus would be improved as a result of the adjustment to the irradiation parameter.

Method for calibrating an irradiation device for additively manufacturing three-dimensional objects by successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, which irradiation device comprises a first and a second irradiation unit adapted to guide a first and a second energy beam, wherein at least two first and two second calibration patterns are generated, wherein the at least two first calibration patterns are generated in at least two different first positions via the first energy beam and the at least two second calibration patterns are generated in at least two different second positions via the second energy beam and position information are determined relating to the positions of the at least two first and second calibration patterns and calibration information are generated relating to a calibration status of the irradiation device based on the determined position information.

Methods for calibrating an irradiation device for an apparatus for additively manufacturing three-dimensional objects include generating at least two first and two second calibration patterns, in at least two different first positions and at least two different second positions; determining position information relating to the positions of the calibration patterns; generating a calibration quality value relating to a calibration status of the irradiation device; simulating at least two first calibration patterns and at least two second calibration patterns based on at least one changed irradiation parameter; determining a calibration quality value for the simulated calibration patterns; and repeating the simulation and determination of the calibration quality value until a maximum or minimum calibration quality value is reached.

Powder module () for an apparatus () for additively manufacturing three-dimensional objects, which powder module () comprises a holding device () adapted to hold a build plate () of the powder module (), wherein the holding device () comprises at least one clamping unit () connectable with and disconnectable from a recess () in the build plate (), wherein the clamping unit () is moveable between a first position in which the clamping unit () is connected with the build plate () and a second position in which the clamping unit () is disconnected from the recess ().

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Bamberg, Germany

Moritz Beck