Abstract: 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.

Abstract: 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.

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.

Abstract: 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.

Abstract: A device for the making of a three-dimensional object (3) by means of layer by layer consolidation of a powderlike construction material (11) by electromagnetic radiation or particle beam has a height-adjustable carrier (2), on which the object (3) is built, and whose horizontal dimension defines a construction field (5). Furthermore, an irradiation device (6, 9) is present for directing the radiation onto regions of an applied layer of the construction material within the construction field (5) corresponding to an object cross section (30). A control unit (10) controls the irradiation device (6, 9) such that the powder particles of the construction material (11) are bonded together at the sites where the radiation impinges on the construction material.

Abstract: 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.

Abstract: 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 (32) or one or several building space partitioning elements (20) on a building platform (2), thereby the device has one or several small building areas (22.1, 22.2, 22.3), in which the powdery material may be efficiently used and different powder materials may be processed.

Abstract: 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.

Abstract: 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.

Abstract: 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 (32) or one or several building space partitioning elements (20) on a building platform (2), thereby the device has one or several small building areas (22.1, 22.2, 22.3), in which the powdery material may be efficiently used and different powder materials may be processed.

Abstract: 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.

Abstract: A process is provided for producing a three-dimensional object having the steps forming the object (3) in a container (1, 200) arranged within a process chamber (100) on a carrier (4) which can be displaced in the container by sequential selective solidification of layers of a pulverulent material (11) 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 (11) after completing the object (3).

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.

Abstract: A process is provided for producing a three-dimensional object having the steps forming the object (3) in a container (1, 200) arranged within a process chamber (100) on a carrier (4) which can be displaced in the container by sequential selective solidification of layers of a pulverulent material (11) 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 (11) after completing the object (3).

Abstract: A process is provided for producing a three-dimensional object having the steps forming the object (3) in a container (1, 200) arranged within a process chamber (100) on a carrier (4) which can be displaced in the container by sequential selective solidification of layers of a pulverulent material (11) 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 (11) after completing the object (3).

Abstract: An apparatus for producing an object using stereography is disclosed. The apparatus has a bath of liquid material in a container, the bath having a free surface. A support in the container supports and positions the object relative to the surface. A means for applying electromagnetic radiation solidifies a layer having solidified sections of the material. A wiper extends across the surface in a first direction. The wiper is at least partly formed of a flexible material and has a substantially horizontal lower edge, and it is positioned below the free surface of the bath in a working position. Displacement means displaces the wiper in the working position in a second direction substantially transversely to the first direction to move a portion of the liquid material in the bath. The lower edge of the wiper is flexibly yielding so as to apply a thin film of liquid material on a surface of the solidified layer and liquid material between solidified sections when displacing the wiper in the second direction.