Patents Assigned to EOS GmbH Electro Optical Systems
  • Patent number: 10919219
    Abstract: The invention refers to a method of generatively manufacturing a three-dimensional object (2) in a process chamber (3) of a generative manufacturing apparatus (1) by a layer-by-layer application and selective solidification of a building material (13) within a build area (10) arranged in the process chamber. In the course of this, while the object is being manufactured, a process gas is supplied to the process chamber by means of a gas supply device and is discharged from the process chamber via an outlet (42a, 42b). According to the invention, the gas supply device is designed and/or arranged relatively to the build area and/or controlled such that a gas stream (40) of the process gas streaming through the process chamber is shaped in such a manner that a substantially elongate oval impingement area (A3) of the gas stream (40) is generated within the build area (10).
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 16, 2021
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Sebastian Mehl, Maximilian Mitterm├╝ller, Martin Schade, Alexander Schilling
  • Publication number: 20210039322
    Abstract: Disclosed is a method for providing a control command set for an additive manufacturing device. The method includes providing a parameter set consisting of a number of parameters, and a construction rule, which is suitable for describing at least one section of the object by the parameter set geometrically as a number of linear or flat elements in space; generating a computer-based layer model of the section of the object by determining, for each layer, the position and shape of a cross-section of the section of the object within the layer, generating a control command set for an additive manufacturing device by which the production of the section of the object is implemented on the basis of the layer model.
    Type: Application
    Filed: January 24, 2019
    Publication date: February 11, 2021
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Michael Goeth, Martin Leuterer
  • Publication number: 20210016512
    Abstract: The invention relates to a method for providing control data for an additive manufacture device, having: a first step (S1) of accessing model data: a second step (S2) of generating a data model in which a construction material layer region (51) to be solidified during the production of an object section is specified for a construction material layer, wherein the region (51) to be solidified is divided into a first sub-region (51a) and a second sub-region (51 b), and a respective solidification scan of the region (51) locations to be solidified is specified in a data model, said scan solidifying the construction material, and a repeated scan is specified at the locations of the second sub-region (51b) but not at the locations of the first sub-region (51a), the energy input parameter during the repeat scan being measured such that the temperature of the construction material lies above a melting temperature; and a third step (S3) of providing data models generated in the second step (S2) as control data for int
    Type: Application
    Filed: February 28, 2019
    Publication date: January 21, 2021
    Applicant: EOS GmbH Electro Optical Systems
    Inventor: Stefan Paternoster
  • Publication number: 20210008806
    Abstract: A calibration method includes positioning the coating unit in a first measuring position and detecting a first position reference value with respect to the reference point and a first measuring point associated with the coating unit at the first measuring position, positioning the coating unit in a second measuring position by moving the coating unit in the direction of movement and detecting a second position reference value with respect to the reference point and a second measuring point associated with the coating unit at the second measuring position, and determining a correction value for the first application element and/or the second application element from the detected first position reference value and the detected second position reference value.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 14, 2021
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Stefan Gruenberger, Stefanie Markl
  • Publication number: 20210001561
    Abstract: Disclosed is a method of providing control data for an additive manufacturing device. The method includes accessing computer-based model data of at least a portion of the object to be manufactured, generating at least one data model of a region of a building material layer to be selectively solidified for manufacturing the at least one object portion. The data model specifies solidification of the building material, and the end point of the at least one solidification path a set of energy introduction parameter values is specified which generates a reference value for the radiation power per unit area in the radiation impact area of the beam bundle on the building material which is lower than the reference value for the radiation power per unit area at other locations of the solidification path, and providing control data corresponding to the generated at least one data model for generating a control data set for the additive manufacturing device.
    Type: Application
    Filed: April 11, 2019
    Publication date: January 7, 2021
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Joerg Hamann, Peter Holfelder, Ludger Huemmeler, Manuel Walter
  • Publication number: 20200376556
    Abstract: A method for providing control data to an additive manufacturing device includes a first step of accessing computer-based model data of a partial area of a cross-section of the object, and a second step of generating a data model of the sub-region, by specifying a solidification of the building material by at least one energy beam bundle along at least one solidification path. A plurality of solidification path sections are scanned at least twice with an energy beam bundle and the amount of energy to be introduced during the scanning is specified so that either the amount of energy introduced during the first scanning or a subsequent scanning is is too small to cause a solidification of the building material. In a third step, control data corresponding to the data model generated in the second step are provided for generating a control data set for the additive manufacturing device.
    Type: Application
    Filed: January 18, 2019
    Publication date: December 3, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Sebastian Edelhaeuser, Michael Goeth, Ludger Huemmeler
  • Publication number: 20200368816
    Abstract: Powder mixture for use in the manufacture of a three-dimensional object by means of an additive manufacturing method, wherein the powder mixture comprises a first material and a second material, wherein the first material comprises a steel in powder form, wherein the second material comprises a reinforcement material different from the first material, wherein the powder mixture is adapted to form a composite object when solidified by means of an electromagnetic and/or particle radiation in the additive manufacturing method, and wherein the reinforcement material comprises nanoparticles.
    Type: Application
    Filed: November 30, 2017
    Publication date: November 26, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Hannu Heikkinen, Antti Mutanen, Antti Poerhoenen, Maija Nystroem, Tatu Syvaenen, Olli Nyrhilae
  • Patent number: 10843450
    Abstract: A method for controlling the direction of gas suctioning is carried out in a device (1) for producing a three-dimensional object (2) by selectively solidifying building material (13) layer by layer. The device (1) comprises an application device (12-14) for applying a layer of the building material (13) to a build area in a working plane (10), a solidifying device (20) for selectively solidifying the building material (13) in the applied layer, and at least two gas nozzles (40) which are arranged at the edge of the build area. The gas nozzles (40) are switchable into a function for suctioning gas from the device (1) and to a functionless state, and are switched depending on an operating state of the device (1).
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: November 24, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Alexander Schilling, Georg Fey
  • Publication number: 20200362120
    Abstract: The present invention concerns a composition comprising at least one polymer, wherein the polymer is in the form of polymer particles, and wherein the composition contains at least one additive, wherein the additive is in a proportion of at most 2% by weight of the composition. Furthermore, the present invention concerns a method for the production of the composition in accordance with the invention, as well as a method for the production of an article comprising the composition in accordance with the invention. Finally, the present invention concerns the use of the composition in accordance with the invention.
    Type: Application
    Filed: November 13, 2018
    Publication date: November 19, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Stoyan Frangov, Andreas Pfister
  • Patent number: 10821510
    Abstract: The invention relates to a method and an associated device, the method including at least the following steps: applying a layer of powder to a component platform in the region of a building and joining area; locally melting and/or sintering the powder layer, wherein, in the region of the building and joining area, at least one high-energy beam is moved in relation to the component platform, selectively impinging the powder layer, at least part of which at least one high-energy beam and the component platform are moved in relation to one another, in the form of a parallel arrangement arranged along a linear feed direction; lowering the component platform by a predetermined layer thickness in a lowering direction; and repeating the above-mentioned steps until the component region is completed.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: November 3, 2020
    Assignees: MTU Aero Engines AG, EOS GmbH Electro Optical Systems
    Inventors: Andreas Jakimov, Georg Schlick, Herbert Hanrieder, Martin Leuterer
  • Patent number: 10807304
    Abstract: A method is presented that makes possible the labelling of powders that can be applied as building material in a layer-additive manufacturing method such as a selective laser sintering method. To this effect the powder is mixed with at least one salt of a metal of the rare earths, wherein the salt has the property that it shows a luminescence when being irradiated with photons having a wavelength outside of the visible spectrum or with particle radiation. Thereby, parts that have been manufactured by means of the layer-additive manufacturing method can be identified with regard to the manufacturer, the place of manufacture or the manufacture date.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: October 20, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Peter Keller, Thomas Mattes, Mandy Gersch, Johann Oberhofer, Anton Mayer
  • Publication number: 20200317885
    Abstract: The present invention relates to a composition comprising at least one polymer system and at least one anti-agglomeration agent, the polymer system being selected from at least one thermoplastic polymer, the bulk density of the composition being more than 300 g/I. Furthermore, the present invention relates to a method for producing the composition according to the invention and its use.
    Type: Application
    Filed: October 16, 2017
    Publication date: October 8, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Monika Gessler, Stefan Paternoster, Daniel Froehlich
  • Patent number: 10792865
    Abstract: A calibration ledge serves for calibrating a manufacturing device for manufacturing a three-dimensional object by a layer-by-layer solidification of a building material at the points corresponding to the respective cross-section of the object by selectively irradiating layers of the building material with a radiation in a working plane. The calibration ledge has an elongated shape and includes an aperture ledge extending in its longitudinal direction and comprising several aperture openings arranged in a row in the longitudinal direction of the calibration ledge which are more permeable for the radiation of the irradiation device than the region of the aperture ledge surrounding the aperture openings.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: October 6, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventor: Jochen Philippi
  • Patent number: 10792861
    Abstract: A method for manufacturing a three-dimensional object by a layer-by-layer application and selective solidification of a building material in powder form in a device. The method includes applying a powder layer of the building material to a build area on an application surface of the device by a recoater moving in a movement direction across the application surface, selectively solidifying the applied powder layer at positions corresponding to a cross-section of the object to be manufactured, and repeating the steps of applying and selectively solidifying until the object is completed. A height of the applied powder layer is varied at least across a section of the powder layer along the movement direction of the recoater.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 6, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventor: Jochen Philippi
  • Publication number: 20200308401
    Abstract: The present invention relates to a composition comprising at least one polymer, the polymer being present in the form of polymer particles and the composition contains at least one water-soluble agent, wherein the water-soluble agent has a proportion of at most 1 wt. % to the composition. The present invention further relates to a method for producing the claimed composition according to the invention and to the use thereof.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 1, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Stoyan Frangov, Andreas Pfister, Peter Keller
  • Publication number: 20200307075
    Abstract: The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Thomas Mattes, Stefan Paternoster, Gerd Cantzler, Jochen Philippi, Stephan Gronenborn, Gero Heusler, Holger Moench, Ralf Conrads
  • Patent number: 10780636
    Abstract: A recoating unit (40) serves for equipping or retrofitting a device (1) for additive manufacturing of a three-dimensional object (2) by selectively solidifying a building material (15), preferably a powder, layer by layer. The device (1) comprises a recoater (16) movable across a build area (8) for applying a layer (31b, 32b) of the building material (15) within the build area (8) and a solidification device (20) for selectively solidifying the applied layer (31b, 32b) at positions corresponding to a cross-section of the object (2) to be manufactured. The device (1) is formed and/or controlled to repeat the steps of applying and selectively solidifying until the object (2) is completed.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 22, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Stefan Paternoster, Stefan Gr├╝nberger
  • Publication number: 20200247059
    Abstract: The invention relates to a method for providing required construction material information in the context of producing at least one three-dimensional object using a generative layer construction device, having the following steps: accessing data of a layer to be applied in a first data set in which for each layer to be applied during the production process, it is indicated whether construction material is to be solidified selectively in the layer and if so, at which locations in said layer the construction material is to be solidified; dividing the area of the layer to be applied into sub-regions; assigning weighting factors to the sub-regions, and ascertaining a construction material quantity to be supplied to the coating device in order to apply the layer, wherein the construction material quantity is ascertained using the weighting factors assigned to individual sub-regions and is provided as required construction material information.
    Type: Application
    Filed: November 25, 2016
    Publication date: August 6, 2020
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Markus Frohnmaier, Oliver Putz
  • Patent number: 10723139
    Abstract: The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 28, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventors: Thomas Mattes, Stefan Paternoster, Gerd Cantzler, Jochen Philippi, Stephan Gronenborn, Gero Heusler, Holger Moench, Ralf Conrads
  • Patent number: 10723071
    Abstract: A method for producing a three-dimensional object (2, 10) and a boundary region (8, 9, 18) by layer-wise applying and solidifying of at least one building material, wherein the three-dimensional object (2, 10) is produced with a first generative production method on the basis of a first building material and the boundary region (8, 9, 18) is produced with a second generative production method, which is different from the first generative production method, on the basis of a second building material. The first generative production method comprises the steps: applying a layer of the first building material on a building base (11, 12) or on an already previously applied layer, selectively solidifying the applied layer at positions corresponding to the cross-section of the object (2, 10) in the respective layer and repeating the steps of applying and selectively solidifying until the object (2, 10) is completed.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: July 28, 2020
    Assignee: EOS GmbH Electro Optical Systems
    Inventor: Georg Fey