Eos Gmbh Electro Optical Systems

Johann Oberhofer

Thomas Mattes

Jochen Weidinger

Peter Keller

Mandy Gersch

Robert Eichner

Michael Jan Galba

Monika Gessler

Joachim Göbner

Anton Mayer

Hans-Ulrich Büse

A device for the making of a three-dimensional object by means of layer by layer consolidation of a powderlike construction material by electromagnetic radiation or particle beam has a control unit that controls an irradiation device such that the powder particles of the construction material are bonded together at the sites where the radiation impinges on the construction material. A selective heating device is designed so that any given partial surface of the construction field can be heated before and/or after to a plateau temperature, which is significantly higher than the temperature of at least a portion of the construction field outside the partial surface. The control unit actuates the selective heating device such that the partial surface has a predefined minimum distance from the edge of the construction field.

Device and method for making a three-dimensional object

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.

Method for identifying laser sintering powders

Method of manufacturing a three-dimensional object of a building material by an additive layer-wise building method, wherein based on material parameters of the building material and predetermined characteristics of the object to be manufactured, an internal structure of the object having a grid structure calculated, and the three-dimensional object is manufactured with this internal structure by the additive layer-wise building method, so that it comprises the predetermined characteristics.

Method of manufacturing a three-dimensional object having an internal structure

A means for modifying a building space for a device for manufacturing a three-dimensional object by layerwise solidification of a powdery building material at the locations corresponding to the object in the respective layers comprises one or several small supports () or one or several building space partitioning elements () on a building platform (), thereby the device has one or several small building areas (), in which the powdery material may be efficiently used and different powder materials may be processed.

Means for modifying a building space and device for manufacturing a three-dimensional object having means for modifying a building space

The present invention relates to a method and a device for manufacturing a three-dimensional object, wherein the object is generated by successively solidifying single layers of fluid or powdery solidifiable building material by the action of electromagnetic radiation. The method comprises steps for emitting a first pulsed electromagnetic radiation onto a first area of a layer of the building material, and for emitting a second continuous electromagnetic radiation onto a second area of the layer of the building material.

Method and device for manufacturing a three-dimensional object that is suitable for application to microtechnology

A process is provided for producing a three-dimensional object having the steps forming the object () in a container () arranged within a process chamber () on a carrier () which can be displaced in the container by sequential selective solidification of layers of a pulverulent material () which can be solidified by the action of electromagnetic or particle radiation at positions corresponding to the cross-section of the object in the particular layer, characterized by the step of controlled removal of non-solidified pulverulent material () after completing the object ().

Process for producing a three-dimensional object

A process is provided for producing a three-dimensional object having the steps forming the object () in a container () arranged within a process chamber () on a carrier () which can be displaced in the container by sequential selective solidification of layers of a pulverulent material () which can be solidified by the action of electromagnetic or particle radiation at positions corresponding to the cross-section of the object in the particular layer, characterised by the step of controlled removal of non-solidified pulverulent material () after completing the object ().

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Stockdorf, Germany

Johann Oberhofer