摘要:
Vorrichtung (1) zur additiven Herstellung eines dreidimensionalen Produktes aus einem Pulver (2) durch lokal selektives Einwirken auf das Pulver (2), wobei die Vorrichtung (1) zumindest aufweist: eine Prozesskammer (3), innerhalb derer das dreidimensionale Produkt hergestellt werden kann, mindestens eine Einwirkungsvorrichtung (4) zum lokal selektiven Einwirken auf das Pulver (2), und mindestens eine Schutzgaseinheit (5) zum Bereitstellen eines Schutzgases und zur lokalen Erzeugung einer Schutzgasströmung an einem momentanen Einwirkungsort (12), wobei die Schutzgaseinheit (5) innerhalb der Prozesskammer (3) verfahrbar angeordnet ist.
摘要:
The invention regards a method for additive manufacturing, wherein a part is built by selectively sintering or melting a material and building a part additively layer by layer using a heat source sintering or melting the material, wherein the process is conducted in a chamber and the chamber is purged with a purging gas, wherein a thermal management of the method is conducted by increasing the gas convection velocity of the purging gas, wherein the purging gas is an inert gas or reactive gas or mixture of both.
摘要:
Abtrennvorrichtung (1), welche zur Abtrennung von partikulären Baumaterialbestandteilen aus einem in einer Prozesskammer (2) einer Vorrichtung (3) zur additiven Herstellung dreidimensionaler Objekte (4) durch sukzessives selektives Belichten und damit einhergehendes Verfestigen einzelner Baumaterialschichten aus einem verfestigbaren Baumaterial (5) vermittels eines Energiestrahls (6) prozessbedingt entstehenden, partikuläre Baumaterialbestandteile enthaltenden Gasstrom (7), eingerichtet ist, umfassend: - eine einen zumindest abschnittsweise einem entsprechenden Gasstrom (7) durchströmbaren oder durchströmten Gehäuseinnenraum (9) definierende Gehäusestruktur (8), - wenigstens eine in dem Gehäuseinnenraum (9) angeordnete oder ausgebildete Filtereinrichtung (10), welche wenigstens ein Filterelement (11) zur Abtrennung der partikulären Baumaterialbestandteile aus einem entsprechenden Gasstrom (7) umfasst, - wenigstens eine Trocknungseinrichtung (14), welche wenigstens ein Trocknungselement (15) zur Trocknung des Gasstroms (7) umfasst.
摘要:
Device for the three-dimensional printing of a component (29) that is to be produced comprises a print head (11) comprising: - means (2, 14, 15, 16) of supplying a ferromagnetic print material; - means (12, 9, 6) allowing the melting of the print material prior to laying; - a first inert-gas spray nozzle (13) at the level of an outlet (141; 261) of the supply means; and - a second inert-gas spray nozzle (51) at the level of a point of contact of the molten print material with a receiving surface (40) of the component that is to be produced in the process of being produced so as to allow gas to be supplied at a desired pressure.
摘要:
An additive manufacturing device comprises: a vacuum forming chamber (1), a worktable device, a powder supply device, at least one electron beam (EB) emission focusing and scanning device (6), at least one laser beam emission focusing and scanning device (7), and a controller. A forming region of the worktable device is at least provided within the vacuum forming chamber (1). The powder supply device is configured to supply powders to the forming region. Scanning ranges of the EB emission focusing and scanning device (6) and the laser beam emission focusing and scanning device (7) are configured to cover at least a part of the forming region. The controller is configured to control the EB emission focusing and scanning device (6) and the laser beam emission focusing and scanning device (7) so as to perform a powder scanning and forming integrated treatment on the forming region. The additive manufacturing device can apply additive manufacturing to create three-dimensional parts having a good-performance, high-efficiency, and high-precision, and highly adaptive to different materials.
摘要:
The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
摘要:
A solid freeform manufacturing system includes a manufacturing chamber containing a powder based additive manufacturing device. The manufacturing chamber is connected to an environmental control chamber. The environmental control chamber contains environmental control devices including fans, filters, and an inert gas source. An interconnection between the environmental control chamber and manufacturing chamber allows an inert, contaminant free manufacturing environment.
摘要:
Build material handling unit (2) for a powder module (3) for an apparatus for additively manufacturing three-dimensional objects, which apparatus is adapted to successively layerwise selectively irradiate and consolidate layers of a build material (4) which can be consolidated by means of an energy source, wherein the build material handling unit (2) is coupled or can be coupled with a powder module (3), wherein the build material handling unit (2) is adapted to level and/or compact a volume of build material (4) arranged inside a powder chamber (5) of the powder module (3) by controlling the gas pressure inside the powder chamber (5).