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US 2019/0240905 A1Published application
Protection element
AssigneeSintratec AG
InventorsChristian VON BURG, Dominik SOLENICKI, Joscha ZELTNER
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AssigneeSintratec AG
InventorsChristian VON BURG, Dominik SOLENICKI, Joscha ZELTNER
Estimating the term…
An additive manufacturing device includes a beam generation unit, a raw material container and a raw material supply unit. A window element can transmit an energy beam emittable by the beam generation unit to the raw material container for manufacturing a solid article from multiple raw material layers. The raw material includes a powder. The raw material container contains a raw material arranged in multiple raw material layers arranged upon each other, where an uppermost raw material layer including a raw material surface is exposed to the energy beam. The window element includes a first surface and a second surface. The first surface faces the beam generation unit and the second surface faces the raw material surface. The second surface is at least partially covered by a protection element. The protection element is transparent for the energy beam such that in operation, the energy beam passes through the protection element.
An additive manufacturing device comprising a beam generation unit, a raw material container and a raw material supply unit, whereby a window element is provided for transmission of an energy beam emittable by the beam generation unit to the raw material container for manufacturing a solid article from a plurality of raw material layers, whereby the raw material comprises a powder, whereby the raw material container contains the raw material arranged in a plurality of raw material layers arranged upon each other, such that an uppermost raw material layer including a raw material surface is exposed to the energy beam, whereby the window element comprises a first surface and a second surface, whereby the first surface faces the beam generation unit and the second surface faces the raw material surface, characterized in that the second surface is covered by a protection element characterized in that the protection element is transparent for the energy beam such that in operation, the energy beam passes through the protection element.
A method for operating an additive manufacturing device for manufacturing a solid article by an additive manufacturing method, comprising a beam generation unit, a raw material supply unit, a raw material container for manufacturing a solid article from a plurality of raw material layers, whereby the raw material comprises a powder, whereby an energy beam is emitted by the energy beam generation unit and is transmitted through a window element arranged in the path between the beam generation unit and the raw material container, whereby the raw material container contains a raw material arranged in a plurality of raw material layers arranged upon each other, such that an uppermost raw material layer including a raw material surface is exposed to the energy beam, whereby the window element comprises a first surface and a second surface, whereby the first surface faces the beam generation unit and the second surface faces the raw material container, wherein the second surface is covered by a protection element such that when in a first step the energy beam hits the raw material surface, any by-product deposits on the protection element, whereby the protection element is transparent for the energy beam such that the energy beam passes through the protection element.
Dependencies are inferred from the claim text.