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Verfahren und Vorrichtung zum Herstellen eines Bauteils basierend auf dreidimensionalen Daten des Bauteils

Producing component based on three-dimensional data of component, comprises generating production platform, which represents production plane, and applying sequential powder layers on top of each other in z-direction by powder supply unit
 
: Meiners, W.; Wissenbach, K.

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Frontpage ()

DE 102007029052 A: 20070621
DE 102007029052 A: 20070621
B23K0026
B22F0003
B29C0067
German
Patent, Electronic Publication
Fraunhofer ILT ()

Abstract
(A1) Die Erfindung betrifft ein Verfahren zum Herstellen eines Bauteils, basierend auf dreidimensionalen Daten des Bauteils, wobei eine Bauplattform, die eine Aufbauebene in x-y-Richtung in einem rechtwinkligen x-y-z-Koordinatensystem darstellt, bereitgestellt wird, darauf nacheinander Pulverschichten uebereinander in z-Richtung aufgebracht werden und jede Pulverschicht in einem Querschnittsbereich, der einem Querschnittsbereich entsprechend den Daten des Bauteils entspricht, mittels Energiestrahlung verfestigt wird, wobei die jeweiligen dem aufzubauenden Bauteil entsprechenden Querschnittsbereiche der jeweils folgenden Pulverschicht an dem jeweils darunter liegenden Querschnittsbereich verbunden werden, das dadurch gekennzeichnet ist, dass zum Aufbauen des Bauteils aus mindestens zwei unterschiedlichen Werkstoffen in definierten Bereichen auf die jeweiligen Querschnittsbereiche eine jeweilige dem Werkstoff dieses Querschnittsbereichs entsprechende Pulverart aufgebracht wird und das aufgebrachte Pulver dieser Pulverschicht mittels jeweiliger Energiestrahlung, die der jeweiligen Pulverart angepasst ist, aufgeschmolzen wird. Weiterhin wird eine entsprechende Vorrichtung angegeben.

 

WO 2008155021 A2 UPAB: 20090114 NOVELTY - The method for producing a component based on three-dimensional data of the component, comprises generating a production platform (1), which represents a production plane in x-y direction in a right-angled x-y-z coordinate system, applying sequential powder layers on top of each other in the z-direction, solidifying each powder layer in a cross-sectional region corresponding to a cross-sectional region, which corresponds to the data, and bonding each cross-sectional region corresponding to the component of each subsequent powder layer to the cross-sectional region lying beneath the same. DETAILED DESCRIPTION - The method for producing a component based on three-dimensional data of the component, comprises generating a production platform (1), which represents a production plane in the x-y direction in a right-angled x-y-z coordinate system, applying sequential powder layers on top of each other in the z-direction by a powder supply unit, solidifying each powder layer by energy radiation in a cross-sectional region corresponding to a cross-sectional region, which corresponds to the data of the component, bonding each cross-sectional region corresponding to the component to be produced of each subsequent powder layer to the cross-sectional region lying beneath the same, applying a type of powder to produce the component from two different materials in defined regions of each of the cross-sectional regions, and fusing the applied powder of the powder layer by the energy radiation for the powder type. The type of powder corresponds to the material of the cross-sectional region. The powder supply unit is processed in one of the x-y direction relative to the production plane, and has individual powder supply nozzles (7a, 7b, 7c). The powder quantities of the powder type in the defined regions are delivered from the powder supply unit. The openings of the powder supply nozzles in z-direction corresponding to the layer thickness of the powder to be applied in the height are positioned itself over the underlying cross-sectional region of the component. The individual powder supply nozzles are actuated for depositing the powder type during processing the nozzle field in x- and/or y-direction independent from each other, so that each individual powder supply nozzle is opened at the times, to which it runs over regions, in which the corresponding powder type is deposited, and remains locked to the times, to which it runs over regions, in which another powder type is deposited. An INDEPENDENT CLAIM is included for a device for producing a component based on three-dimensional data of the component. USE - Method for producing a component based on three-dimensional data of the component. ADVANTAGE - The method is capable of effectively and quickly producing the component from local different materials and adjusting the local different function characteristics in the component thus enabling larger production rate.

: http://publica.fraunhofer.de/documents/N-91382.html