Eos Gmbh Electro Optical Systems

Mtu Aero Engines Ag

Alexander Schilling

Georg Fey

Robert Achim Domröse

Sebastian Mehl

Thomas Hess

Marc Dimter

Dominik Wolf

Jorg Hamann

Franz-Josef Kerl

Andre Danzig

Michael Hutzel

Jochen Philippi

Martin Schade

Tatu Syvänen

Martin Heugel

Maximilian Mittermüller

Kevin Minet

Olli Nyrhilä

Jörg Hamann

Philip Ströbel

Sebastian Friedel

Maximilian MITTERMÜLLER

Michael Frey

André Danzig

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.

Device and method for generatively producing a three-dimensional object

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.

Flow device and flow method for an additive manufacturing device and an additive manufacturing device with such a flow device

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.

Apparatus and method for manufacturing a three-dimensional object

A device () for producing a three-dimensional object () through layer-wise solidifying of build-up material () at positions () corresponding to a cross-section of the object () to be produced in a respective layer comprises a coating device (-) for applying a layer of the build-up material () on a working plane (), a solidifying device () for the selective solidifying of the build-up material () in the applied layer and a gas suction nozzle () for extracting gas from the device () by suction. The gas suction device () is thereby movably arranged and the device () is designed to control or to regulate a movement and/or orientation of the gas suction nozzle () as a function of a number of reference positions ().

Control unit, device and method for the production of a three-dimensional object

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

Method and device for producing a three-dimensional object

The invention refers to a method of generatively manufacturing a three-dimensional object () in a process chamber () of a generative manufacturing apparatus () by a layer-by-layer application and selective solidification of a building material () within a build area () 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 (). 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 () of the process gas streaming through the process chamber is shaped in such a manner that a substantially elongate oval impingement area (A) of the gas stream () is generated within the build area ().

Method and apparatus for generatively manufacturing a three-dimensional object

A method for controlling the direction of gas suctioning is carried out in a device () for producing a three-dimensional object () by selectively solidifying building material () layer by layer. The device () comprises an application device (-) for applying a layer of the building material () to a build area in a working plane (), a solidifying device () for selectively solidifying the building material () in the applied layer, and at least two gas nozzles () which are arranged at the edge of the build area. The gas nozzles () are switchable into a function for suctioning gas from the device () and to a functionless state, and are switched depending on an operating state of the device ().

Method, apparatus, and control unit for producing a three-dimensional object

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.

Device and method for producing a three-dimensional object layer-by-layer

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

Method of manufacturing a three-dimensional object according to which the object is built layer-wise by solidification of a building material, wherein a test specimen is built which is excited to oscillate after being built and wherein natural frequencies of the oscillations are determined.

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Munich, Germany

Alexander Schilling