Back to results
US 2026/0208268 A1Published application
Device and method for additive manufacturing with a protective gas flow for protecting an optical access window
AssigneeAddup
InventorSébastien DEVROE
Life of this patent
Estimating the term…
Abstract
The invention relates to an additive manufacturing device comprising: an enclosure configured to contain powder and to produce a discharge gas flow against the powder, a laser source configured to produce a laser beam and expose the powder to the laser beam through a window of the enclosure, a blowing nozzle and a suction nozzle configured to produce a protective gas flow in the enclosure against the window.
Claims15
An additive manufacturing device comprising:
- an enclosure configured to contain powder and to produce a discharge gas flow against the powder,
- a laser source configured to produce a laser beam and expose the powder to the laser beam through a window of the enclosure,
- a blowing nozzle and a suction nozzle configured to produce a protective gas flow in the enclosure against the window,
- the blowing nozzle being configured to blow a blowing flow rate and the suction nozzle being configured to draw a suction flow rate, the blowing flow rate being strictly greater than the suction flow rate.
1 more element
An additive manufacturing method comprising the following steps:
- producing a discharge gas flow against powder contained in an enclosure,
- exposing the powder to a laser beam produced by a laser source, the beam passing through a window in the enclosure.
- producing a protective gas flow in the enclosure against the window, the flow being produced by a blowing nozzle and a suction nozzle, the blowing nozzle blowing a blowing flow rate and the suction nozzle drawing a suction flow rate, the blowing flow rate being strictly greater than the suction flow rate.
Dependencies are inferred from the claim text.