Patents by Inventor Tatu Syvaenen
Tatu Syvaenen 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: 11550295Abstract: A method for providing control data for manufacturing at least one three-dimensional object by means of a layer-wise solidification of a building material in an additive manufacturing apparatus is provided. The method includes at least the following steps: a) determining the locations corresponding to the cross section of the at least one object, b) determining at least two different regions to be solidified in said at least one layer, wherein said at least two regions are chosen from the group of: sandwiched region, down-facing region and up-facing region, c) defining a scanning sequence for the beam so as to solidify the building material at least at the locations corresponding to said portion of the cross section of the object, wherein at an interface between a first and a second region differing from each other a scan line of the beam is continuous and at least one beam parameter value is changed.Type: GrantFiled: March 31, 2017Date of Patent: January 10, 2023Assignee: EOS GmbH Electro Optical SystemsInventors: Hannu Heikkinen, Tatu Syvänen, Michael Göth, Ludger Hümmeler, Thomas Hoferer
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Publication number: 20220281006Abstract: Disclosed are mixtures for use in additive manufacturing, wherein the powder mixture comprises first and second materials. The first material includes a metal alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a reinforcement material comprising powder particles having a particle diameter of from 1 to less than 30 ?m (as determined by laser scattering or laser diffraction). The inventive powder mixtures allows for the processing to three dimensions objects which are free of cracking and which thus have favourable mechanical characteristics. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, three dimensional objects prepared accordingly and devices for implementing processes for the preparation of such objects, as well as the use of a corresponding powder mixture to suppress crack formation in a three-dimensional object, which is prepared by additive manufacturing.Type: ApplicationFiled: May 6, 2020Publication date: September 8, 2022Applicant: EOS GmbH Electro Optical SystemsInventors: Hannu Heikkinen, Antti Mutanen, Tiina Riskilae, Maija Nystroem, Jukka Simola, Eero Virtanen, Antti Poerhoenen, Tatu Syvaenen, Olli Nyrhilae
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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: 20200368816Abstract: 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: ApplicationFiled: November 30, 2017Publication date: November 26, 2020Applicant: EOS GmbH Electro Optical SystemsInventors: Hannu Heikkinen, Antti Mutanen, Antti Poerhoenen, Maija Nystroem, Tatu Syvaenen, Olli Nyrhilae
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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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Publication number: 20200033835Abstract: A method for providing control data for manufacturing at least one three-dimensional object by means of a layer-wise solidification of a building material in an additive manufacturing apparatus is provided. The method includes at least the following steps: a) determining the locations corresponding to the cross section of the at least one object, b) determining at least two different regions to be solidified in said at least one layer, wherein said at least two regions are chosen from the group of: sandwiched region, down-facing region and up-facing region, c) defining a scanning sequence for the beam so as to solidify the building material at least at the locations corresponding to said portion of the cross section of the object, wherein at an interface between a first and a second region differing from each other a scan line of the beam is continuous and at least one beam parameter value is changed.Type: ApplicationFiled: March 31, 2017Publication date: January 30, 2020Applicant: EOS GmbH Electro Optical SystemsInventors: Hanna Heikkinen, Tatu Syvänen, Michael Göth, Ludger Hümmeler, Thomas Hoferer
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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: 20190210103Abstract: Powder mixture for use in the manufacture of a three-dimensional object using an additive manufacturing method, wherein the powder mixture includes 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, and wherein the powder mixture is adapted to form a composite object when solidified an electromagnetic and/or particle radiation in the additive manufacturing method.Type: ApplicationFiled: May 26, 2017Publication date: July 11, 2019Applicant: EOS GmbH Electro Optical SystemsInventors: Hannu Heikkinen, Antti Mutanen, Antti Pörhönen, Maija Nyström, Tatu Syvänen, Olli Nyrhilä
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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
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Patent number: 8034279Abstract: A method for manufacturing a three-dimensional object by successively solidifying layers of a building material at positions in the respective layer corresponding to the cross-section of the object is provided, wherein at least a partial region of a layer is solidified such that a pattern is generated, which pattern contains a plurality of substantially parallel solidification lines (V, S), and at least a partial region of a subsequent layer is exposed such that a pattern is generated, which pattern contains a plurality of substantially parallel solidification lines (V, S) that are rotated with respect to the solidification lines of the pattern of the previous layer by an angle (?) that differs from 180°, 90° and 45°.Type: GrantFiled: March 10, 2008Date of Patent: October 11, 2011Assignee: EOS GmbH Electro Optical SystemsInventors: Marc Dimter, Ralph Mayer, Ludger Hümmeler, Rainer Salzberger, Juha Kotila, Tatu Syvänen