Verfahren zum Herstellen eines Bauteils sowie Verwendung des nach dem Verfahren hergestellten Bauteils

(B3) Die Erfindung betrifft ein Verfahren zum Herstellen eines Bauteils basierend auf dreidimensionalen Daten des Bauteils unter Verwendung von Pulver-Werkstoffen, wobei mindestens ein Abschnitt des Bauteils, der ein zusammenhaengendes Bauteil-Volumen darstellt, datenmaessig in einen Huellbereich und einen Kernbereich unterteilt wird, wobei eine Bauplattform, die eine Aufbauebene in x-y-Richtung in einem rechtwinkligen x-y-z-Koordinatensystem darstellt, bereitgestellt wird, darauf nacheinander Pulverschichten in z-Richtung uebereinander aufgebracht werden und jede Pulverschicht in einem definierten Querschnittsbereich mittels Energiestrahlung verfestigt wird, das dadurch gekennzeichnet ist, dass zunaechst aus den Pulverschichten der Huellbereich des Bauteil-Volumens, basierend auf den Daten, als feste Huelle aufgebaut wird, danach der im Kernbereich des Bauteil-Volumens, der von der festen Huelle umgeben ist, angesammelte Pulverwerkstoff entfernt wird, und anschliessend der leere Kernbereich mit einem weiteren Werkstoff aufgefuellt wird. Weiterhin betrifft die Erfindung die Verwendung des nach dem Verfahren hergestellten Bauteils.

DE 102007039035 B3 UPAB: 20090116 NOVELTY - The procedure for the production of a component (1) based on three-dimensional data of the component under use of powder materials, comprises dividing a section of the component that represents a related component volume, into a covering area out of hot-work steel and a core area out of heat conducting material, allocating a construction platform that represents a construction plain in x-y-direction in a right-angled x-y-z-coordination system, and subjecting a powder layer on the platform in z-direction to each other. DETAILED DESCRIPTION - The procedure for the production of a component (1) based on three-dimensional data of the component under use of powder materials, comprises dividing a section of the component that represents a related component volume, into a covering area out of hot-work steel and a core area out of heat conducting material, allocating a construction platform that represents a construction plain in x-y-direction in a right-angled x-y-z-coordination system, and subjecting a powder layer on the platform in z-direction to each other. Each powder layer is solidified by energy radiation in a defined cross-section area that corresponds to a cross-section area corresponding to the data of the component. The cross-section area corresponding to the component to be constructed is connected to the cross-section area of the further powder layer with the hardened cross section area. The covering area of the component volume based on the data is constructed as strong cover. The powder material collected in the core area of the component volume that is surrounded by the strong cover is removed and subsequently the empty core area is filled up with a further material. The powder material is removed from an opening that is subsequently used for filling the material. The component is subdivided into several sections that form a related area of the component. The core area surrounded by the cover area is filled with the material. Separating walls are arranged in single core areas that are constructed together with the cover area out of hardened powder layer. Metal powder with a grain size of 5-100 mu m is used as a powder material. The powder layer is subjected with a layer thickness of 10-400 mu m. A metal is used as casting material. The covering area serves as cool channels (3). USE - Procedure for the production of a component based on three-dimensional data of the component useful as molding insert for injection molding machine (claimed). ADVANTAGE - The procedure ensures production of a component based on three-dimensional data of the component with high surface quality, different functional properties, high wear resistance and high thermal conductivity in less time-consuming manner.