Patents by Inventor Robert Achim Domröse
Robert Achim Domröse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11914341Abstract: The invention relates to a computer-assisted method for generating a control data set for an additive layer manufacturing device. In a first step, a layer data set is accessed, wherein points are marked in the data model which correspond to an object cross-section and at which the bid-up material should be solidified. In a second step, the layer data set is modified in such a way that for at least a portion of the object cross-section, the number of beams required for solidifying the build-up material inside said portion is determined preferably automatically, according to quality specifications of the portion and/or a manufacturing time of the object. In a third step, the modified layer data set is provided as a control data set for the additive layer manufacturing device.Type: GrantFiled: March 7, 2018Date of Patent: February 27, 2024Assignee: EOS GmbH Electro Optical SystemsInventors: Martin Schade, Albert Fruth, Robert Achim Domröse, Maximilian Mittermüller, Michael Göth, Markus Kuchenbaur, Michael Kowal
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Publication number: 20230094578Abstract: A method for determining a distance in an additive manufacturing device includes emitting a number of directed beams using a number of beam sources, detecting at least one of the directed beams from a first beam source using a first detector and generating a signal in dependence on the at least one beam impinging on the least one detector, wherein a recoating element is spatially arranged between the first beam source and the first detector, and determining a distance between a boundary of the recoating element and a surface of a building base and/or an article placed on the building base, based on the signal generated by the detector and using an evaluation unit.Type: ApplicationFiled: February 16, 2021Publication date: March 30, 2023Applicant: EOS GmbH Electro Optical SystemsInventors: Ulrich Kleinhans, Robert Achim Domroese, Dominik Kunz
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Patent number: 11141923Abstract: Disclosed is a method of determining a quality indicator of an object that has been manufactured by layer-wise additive manufacturing. The method includes providing a first dataset that is assigned to a process monitoring device, detecting a relative frequency of occurrence of a process irregularity in a layer and of assigning a grade indicator value to the solidified object cross-section in a layer according to the detected relative frequency, generating a second dataset, in which a grade indicator value is assigned to the object cross-section in each of said several layers following upon one another, and determining a quality indicator by using the second dataset (or several further datasets).Type: GrantFiled: July 7, 2017Date of Patent: October 12, 2021Assignee: EOS GmbH Electro Optical SystemsInventors: Robert Achim Domröse, Pilvi Ylander, Katri Kakko, Kevin Minet, Tatu Syvänen, Dominik Wolf
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Publication number: 20210122117Abstract: A control method serves for controlling at least one solidification device of an additive manufacturing device for manufacturing a three-dimensional object by means of an additive layer build method in which at least one object is manufactured by repeated application of a layer of a building material, to a build area and by selective solidification of the applied layer at positions corresponding to a cross-section of the object to be manufactured, wherein a gas having a plurality of flow directions which essentially are not aligned in the same direction flows across the build area.Type: ApplicationFiled: March 29, 2018Publication date: April 29, 2021Applicant: EOS GmbH Electro Optical SystemsInventors: Martin Schade, Robert Achim Domröse, Martin Leuterer, Michael Göth, Maximilian Mittermüller, Markus Kuchenbaur
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Publication number: 20210114111Abstract: The invention relates to a computer-assisted method for generating a control data set for an additive layer manufacturing device. In a first step, a layer data set is accessed, wherein points are marked in the data model which correspond to an object cross-section and at which the bid-up material should be solidified. In a second step, the layer data set is modified in such a way that for at least a portion of the object cross-section, the number of beams required for solidifying the build-up material inside said portion is determined preferably automatically, according to quality specifications of the portion and/or a manufacturing time of the object. In a third step, the modified layer data set is provided as a control data set for the additive layer manufacturing device.Type: ApplicationFiled: March 7, 2018Publication date: April 22, 2021Applicant: EOS GmbH Electro Optical SystemsInventors: Martin Schade, Albert Fruth, Robert Achim Domröse, Maximilian Mittermüller, Michael Göth, Markus Kuchenbaur, Michael Kowal
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Patent number: 10946581Abstract: Method for calibrating an apparatus for manufacturing a three-dimensional object by layer-wise selective solidification of building material with the step of generating an substantially periodic first modulation pattern in a first sub-area of the build area, the step of generating an substantially periodic second modulation pattern in a second sub-area of the build area, wherein in the overlap zone, the first modulation pattern and the second modulation pattern form an substantially periodic superposition pattern, whose period is larger than the period of the first modulation pattern and the period of the second modulation pattern, the step of detecting the superposition pattern, and the step of determining the deviation of the position of the superposition pattern on the build area from a reference position.Type: GrantFiled: December 20, 2016Date of Patent: March 16, 2021Assignee: EOS GmbH Electro Optical SystemsInventors: Robert Achim Domröse, Dominik Wolf, Michael Göth, Ulrich Schmid, Maximilian Mittermüller
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Patent number: 10682700Abstract: A device is disclosed for producing a three-dimensional object by layerwise construction. The device contains a flow device for generating a gas flow above an applied layer of the building material by means of a nozzle element for introducing the gas into the device. The nozzle element includes a body with a gas inlet side and a gas outlet side, and channels which penetrate the body from the gas inlet side to the gas outlet side, provided with inlet openings on the gas inlet side and gas outlet openings on the gas outlet side, and which are separated by walls. The length of the channels is selected such that a laminar flow is formed at the gas outlet side.Type: GrantFiled: March 27, 2015Date of Patent: June 16, 2020Assignee: EOS GmbH Electro Optical SystemsInventors: Olli Nyrhilä, Alexander Schilling, Jörg Hamann, Robert Achim Domröse, Dominik Wolf, Tatu Syvänen, Kevin Minet
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Patent number: 10414095Abstract: An exposure control device serves for equipping and/or retrofitting a generative layer-wise building device. The exposure control device has a first data output interface, at which control commands can be output to the exposure device. The control commands specify one of a plurality of exposure types defined by a predetermined combination of a radiation energy density to be emitted by the exposure device and a scanning pattern with which the radiation is being directed to a region of a layer of the building material. The exposure control device also includes a second data output interface at which an exposure type can be output in real time in relation to a timing of the output of a control command specifying this exposure type.Type: GrantFiled: June 20, 2017Date of Patent: September 17, 2019Assignee: EOS GmbH Electro Optical SystemsInventors: Markus Frohnmaier, Michael Göth, Robert Achim Domröse, Stefan Fröbe, Joachim Wichner, Harald Häger
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Publication number: 20190248078Abstract: Disclosed is a method of determining a quality indicator of an object that has been manufactured by layer-wise additive manufacturing . The method includes providing a first dataset that is assigned to a process monitoring device, detecting a relative frequency of occurrence of a process irregularity in a layer and of assigning a grade indicator value to the solidified object cross-section in a layer according to the detected relative frequency, generating a second dataset, in which a grade indicator value is assigned to the object cross-section in each of said several layers following upon one another, and determining a quality indicator by using the second dataset (or several further datasets).Type: ApplicationFiled: July 7, 2017Publication date: August 15, 2019Applicant: EOS GmbH Electro Optical SystemsInventors: Robert Achim DOMRÖSE, Pilvi YLANDER, Katri KAKKO, Kevin MINET, Tatu SYVÄNEN, Dominik WOLF
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Publication number: 20180370146Abstract: Method for calibrating an apparatus for manufacturing a three-dimensional object by layer-wise selective solidification of building material with the step of generating an substantially periodic first modulation pattern in a first sub-area of the build area, the step of generating an substantially periodic second modulation pattern in a second sub-area of the build area, wherein in the overlap zone, the first modulation pattern and the second modulation pattern form an substantially periodic superposition pattern, whose period is larger than the period of the first modulation pattern and the period of the second modulation pattern, the step of detecting the superposition pattern, and the step of determining the deviation of the position of the superposition pattern on the build area from a reference position.Type: ApplicationFiled: December 20, 2016Publication date: December 27, 2018Applicant: EOS GmbH Electro Optical SystemsInventors: Robert Achim Domröse, Dominik Wolf, Michael Göth, Ulrich Schmid, Maximilian Mittermüller
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Publication number: 20180001563Abstract: An exposure control device (31) serves for equipping and/or retrofitting a generative layer-wise building device (1). The latter comprises an exposure device (20) which emits electromagnetic radiation (22) or particle radiation and is configured to irradiate positions to be solidified in a layer in such a way that after cooling they exist as an object cross-section or part of the same. The exposure control device (31) has a first data output interface (36), at which control commands can be output to the exposure device (20). The control commands which are output specify one of a plurality of exposure types wherein an exposure type is defined by a predetermined combination of a radiation energy density to be emitted by the exposure device (20) and a scanning pattern with which the radiation (22) is being directed to a region of a layer of the building material (15).Type: ApplicationFiled: June 20, 2017Publication date: January 4, 2018Applicant: EOS GmbH Electro Optical SystemsInventors: Markus Frohnmaier, Michael Göth, Robert Achim Domröse, Stefan Fröbe, Joachim Wichner, Harald Häger
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Publication number: 20170216916Abstract: A device (1), for producing a three-dimensional object (2) by solidifying, layer-by-layer, building material (13) at locations in the respective layer corresponding to the cross-section of the object (2) to be produced, contains a flow device (31, 32, 34, 35) for generating a gas flow above an applied layer of the building material (13) by means of a nozzle element (40) for introducing the gas into the device. The nozzle element (40) comprises a body (41) with a gas inlet side and a gas outlet side (46), and a plurality of channels (42) which penetrate the body from the gas inlet side (44) to the gas outlet side (46), are provided with inlet openings on the gas inlet side (44) and with gas outlet openings (47) on the gas outlet side (46), and which are separated by walls (43). The length of the channels (42) is selected such that therein a laminar flow is formed at the gas outlet side (46).Type: ApplicationFiled: March 27, 2015Publication date: August 3, 2017Applicant: EOS GmbH Electro Optical SystemsInventors: Olli Nyrhilä, Alexander Schilling, Jörg Hamann, Robert Achim Domröse, Dominik Wolf, Tatu Syvänen, Kevin Minet