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US 2017/0246709 A1Published application
Control of laser ablation condensate products within additive manufacturing systems
OwnerPaul Guerrier, Ian L. Brooksinventors
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Abstract
Byproduct condensate generated during additive manufacturing is controlled by providing at least one electrode inside a chamber. The condensate may be electrically charged as it is generated or an electrical charge may be imparted to the condensate. The electrode may have either a positive or negative bias to either attract or repel the condensate. The electrode may be located on a wall of the chamber or associated with a transparent window through which a laser beam passes into the chamber.
Claims18
An additive manufacturing system comprising:
- a transparent window;
- a powder bed;
- a plurality of walls, wherein the walls and the transparent window define a chamber around the powder bed;
- a laser source that directs a laser beam into the chamber through the transparent window toward the powder bed;
- and
- an electrode disposed in the chamber, wherein the electrode is biased to attract or repel the condensate due to an electrical charge of the condensate.
3 more elements
A method of additive manufacturing comprising:
- directing a laser beam through a transparent window into a chamber to fuse powder in a powder bed, wherein condensate is generated from the powder;
- and
- applying an electrical bias to an electrode disposed in the chamber to attract or repel the condensate due to an electrical charge of the condensate.
Dependencies are inferred from the claim text.