公开(公告)号：US10946441B2

公开(公告)日：2021-03-16

申请号：US15310467

申请日：2015-05-13

Applicant: EOS GmbH Electro Optical Systems

Inventor： Alexander Schilling ,  Georg Fey

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/364 ,  B33Y30/00 ,  B23K26/342 ,  B23K26/142 ,  B29C64/153 ,  B33Y50/02 ,  B23K26/70 ,  B23K26/16 ,  B28B1/00 ,  B28B17/00 ,  B23K101/00

Abstract: A device (1) for producing a three-dimensional object (2) through layer-wise solidifying of build-up material (13) at positions (43) corresponding to a cross-section of the object (2) to be produced in a respective layer comprises a coating device (12-14) for applying a layer of the build-up material (13) on a working plane (10), a solidifying device (20) for the selective solidifying of the build-up material (13) in the applied layer and a gas suction nozzle (34) for extracting gas from the device (1) by suction. The gas suction device (34) is thereby movably arranged and the device (1) is designed to control or to regulate a movement and/or orientation of the gas suction nozzle (34) as a function of a number of reference positions (51, 53, 55a, 55b, 55c, 55d).

公开(公告)号：US10343216B2

公开(公告)日：2019-07-09

申请号：US14777926

申请日：2014-03-28

Applicant: EOS GmbH Electro Optical Systems

Inventor： Robert Achim Domrose ,  Michael Hutzel ,  Alexander Schilling ,  Andre Danzig ,  Jorg Hamann ,  Thomas Hess ,  Marc Dimter

IPC: B22F3/105 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B23K26/082 ,  B23K26/144 ,  B23K26/342 ,  B23K26/70 ,  B23K15/00 ,  B23K15/02 ,  B23K26/14 ,  B29C64/20 ,  B29C64/35 ,  B29K105/00

Abstract: A method for producing a three-dimensional object (2) by applying layers of a pulverulent construction material (11) and by selectively solidifying said material by the action of energy comprises the steps: a layer of the pulverulent construction material (11) is applied to a support (6) or to a layer of the construction material that has been previously applied and at least selectively solidified; an energy beam (14) from an energy source (13) sweeps over points on the applied layer corresponding to a cross-section of the object (2) to be produced in order to selectively solidify the pulverulent construction material (11); and a gas flow (18) is guided in a main flow direction (RG) over the applied layer during the sweep of the energy beam (14). The main flow direction (RG) of the gas flow (G) and the sweep direction (RL) of the energy beam (14) are adapted to one another at least in one region of the cross-section to be solidified.

公开(公告)号：US20190039313A1

公开(公告)日：2019-02-07

申请号：US16073878

申请日：2017-01-31

Applicant: EOS GmbH Electro Optical Systems

Inventor： Georg Fey ,  Martin Heugel ,  Sebastian Friedel ,  Dominik Wolf ,  Alexander Schilling ,  Philip Ströbel

IPC: B29C64/371 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/20 ,  B29C64/393 ,  B22F3/105

Abstract: An apparatus for manufacturing a three-dimensional object by a layer-by-layer solidification of building material at the points corresponding to the cross-section of the object to be manufactured in a respective layer. The apparatus includes a process chamber in which the object is to be built up layer by layer by selectively solidifying layers of a building material in a build area, a gas supply device, and a recirculating air filter device, wherein the apparatus comprises a pressure stabilization device configured to keep the pressure in the process chamber substantially constant.

公开(公告)号：US10919219B2

公开(公告)日：2021-02-16

申请号：US15690880

申请日：2017-08-30

Applicant: EOS GmbH Electro Optical Systems

Inventor： Sebastian Mehl ,  Maximilian Mittermüller ,  Martin Schade ,  Alexander Schilling

IPC: B33Y10/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/159 ,  B08B15/00 ,  B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393

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).

公开(公告)号：US20190299291A1

公开(公告)日：2019-10-03

申请号：US16423663

申请日：2019-05-28

Applicant: EOS GmbH Electro Optical Systems

Inventor： Robert Achim Domrose ,  Michael Hutzel ,  Alexander Schilling ,  Andre Danzig ,  Jorg Hamann ,  Thomas Hess ,  Marc Dimter

IPC: B22F3/105 ,  B29C64/35 ,  B29C64/20 ,  B23K15/00 ,  B23K26/70 ,  B23K26/342 ,  B23K26/082 ,  B33Y50/02 ,  B33Y30/00 ,  B29C64/153 ,  B23K26/144 ,  B23K15/02 ,  B23K26/14 ,  B33Y10/00

Abstract: A method for producing a three-dimensional object (2) by applying layers of a pulverulent construction material (11) and by selectively solidifying said material by the action of energy comprises the steps: a layer of the pulverulent construction material (11) is applied to a support (6) or to a layer of the construction material that has been previously applied and at least selectively solidified; an energy beam (14) from an energy source (13) sweeps over points on the applied layer corresponding to a cross-section of the object (2) to be produced in order to selectively solidify the pulverulent construction material (11); and a gas flow (18) is guided in a main flow direction (RG) over the applied layer during the sweep of the energy beam (14). The main flow direction (RG) of the gas flow (G) and the sweep direction (RL) of the energy beam (14) are adapted to one another at least in one region of the cross-section to be solidified.

公开(公告)号：US20180065296A1

公开(公告)日：2018-03-08

申请号：US15690880

申请日：2017-08-30

Applicant: EOS GmbH Electro Optical Systems

Inventor： Sebastian Mehl ,  Maximilian Mittermüller ,  Martin Schade ,  Alexander Schilling

IPC: B29C64/159 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/393

CPC classification number: B29C64/159 ,  B08B15/007 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/35 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F2201/00 ,  B22F2203/00

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).

公开(公告)号：US20220009001A1

公开(公告)日：2022-01-13

申请号：US17289952

申请日：2019-11-06

Applicant: EOS GmbH Electro Optical Systems

Inventor： Alexander Schilling ,  Sebastian Mehl ,  Franz-Josef Kerl

IPC: B22F12/70 ,  B22F12/20 ,  B33Y10/00 ,  B33Y30/00

Abstract: A flow device for an additive manufacturing device (1) for the production of a three-dimensional object (2) by layer-wise selective solidification of a building material in a build area (10) comprises: a process chamber (3), a gas supply device for generating a gas stream in the additive manufacturing device (1), at least one gas inlet (32, 43, 132, 232) for introducing the gas stream into the process chamber (3) and at least one gas outlet (34, 45) for directing the gas stream out of the process chamber (3), and a gas supply line (30), which is provided outside the process chamber (3), in order to conduct gas to the at least one gas inlet (32, 43, 132, 232), the gas supply line (30) comprising at least a first line section (31, 41) which adjoins the gas inlet (32, 43, 132, 232) and which extends a length (L) along a first extension direction of the gas supply line (30), the first extension direction being substantially straight, and wherein the first line section (31, 41) extends a maximum value of a width (B) that extends transverse to the first extension direction and parallel to the build area (10), and wherein the length (L) of the first line section (31, 41) is at least as large as one half of the maximum value of the width (B) and wherein the first line section (31, 41) further comprises a first subsection (51) that is arranged at a distance from the gas inlet (32, 43, 132, 232) and which comprises at least a first flow conditioning unit (50, 150) in addition to a wall of the first line section (31, 41), the first flow conditioning unit being designed to substantially align the gas stream in the first extension direction.

公开(公告)号：US10682700B2

公开(公告)日：2020-06-16

申请号：US15129333

申请日：2015-03-27

Applicant: EOS GmbH Electro Optical Systems

Inventor： Olli Nyrhilä ,  Alexander Schilling ,  Jörg Hamann ,  Robert Achim Domröse ,  Dominik Wolf ,  Tatu Syvänen ,  Kevin Minet

IPC: B22F3/105 ,  B29C64/153 ,  B29C64/35 ,  B29C64/20 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B23K26/144 ,  B23K26/342 ,  B23K26/14 ,  B28B1/00 ,  B28B17/00 ,  B29C64/165 ,  B29K105/00

Abstract: 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.

公开(公告)号：US12115722B2

公开(公告)日：2024-10-15

申请号：US17289952

申请日：2019-11-06

Applicant: EOS GmbH Electro Optical Systems

Inventor： Alexander Schilling ,  Sebastian Mehl ,  Franz-Josef Kerl

IPC: B33Y10/00 ,  B22F10/28 ,  B22F10/322 ,  B22F10/77 ,  B22F12/20 ,  B22F12/70 ,  B29C64/153 ,  B33Y30/00 ,  B22F12/17

CPC classification number: B29C64/153 ,  B22F10/28 ,  B22F10/322 ,  B22F12/20 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/77 ,  B22F12/17

Abstract: Disclosed is a flow device for an additive manufacturing device. The device includes a gas supply line located outside the process chamber to conduct gas to a gas inlet. The gas supply line includes a first line section extending in a first extension direction and a maximum width that extends transverse to the first extension direction and parallel to the build area. A length of the first line section is at least half as large as the maximum value of the width. The first line section also includes a first subsection spaced from the gas inlet and including a first flow conditioning unit and a wall of the first line section. The first flow conditioning unit substantially aligns the gas stream in the first extension direction.

公开(公告)号：US12115721B2

公开(公告)日：2024-10-15

申请号：US17252478

申请日：2019-06-21

Applicant: EOS GmbH Electro Optical Systems

Inventor： Franz-Josef Kerl ,  Sebastian Mehl ,  Alexander Schilling

IPC: B33Y10/00 ,  B22F10/28 ,  B22F10/32 ,  B22F10/322 ,  B22F12/41 ,  B22F12/44 ,  B22F12/49 ,  B22F12/70 ,  B29C64/153 ,  B33Y30/00 ,  B33Y40/00 ,  B22F12/00

CPC classification number: B29C64/153 ,  B22F10/28 ,  B22F10/32 ,  B22F10/322 ,  B22F12/41 ,  B22F12/70 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F12/224 ,  B22F12/44 ,  B22F12/49

Abstract: A flow device serves for a 3D printer. The device includes a gas conveying device for generating a gas stream and a process chamber with a build area for building the object. The process chamber includes a first gas inlet for introducing a gas stream into the process chamber, and a first gas outlet and a second gas outlet for discharging the gas stream. The first gas outlet is arranged closer to the build area than the second gas outlet in a direction perpendicular to the build area, and the first gas outlet is provided substantially within a lower third of a distance of the build area from a process chamber ceiling a first height range of the process chamber with respect to its extension in a direction perpendicular to the build area and the second gas outlet is provided substantially within the upper four fifths of the distance of the build area from the process chamber ceiling.