Additive manufacturing device
AssigneeMitsubishi Power, Ltd.
InventorsKei HIGASHI, Kazuhiro YOSHIDA, Chikara KURIMURA, Takanao KOMAKI
Life of this patent
Estimating the term…
Abstract
An additive manufacturing device comprises a lower nozzle that blows out inert gas into a chamber in a horizontal direction through a lower opening portion formed in a lower part of a first side wall constituting the chamber, and an upper nozzle that blows out the inert gas into the chamber through an upper opening portion formed in an upper part of the first side wall, wherein the upper nozzle includes a window nozzle that blows out the inert gas along an inner surface of a window portion of a top board constituting the chamber, and an oblique nozzle that blows out the inert gas obliquely downward from the upper portion of the first side wall.
Claims9
An additive manufacturing device comprising:
- a chamber which has a first side wall including an upper opening formed in an upper portion and a lower opening formed in a lower portion located below the upper portion, a second side wall disposed so as to face the first side wall and including a discharge port formed so as to face the lower opening, and a top plate provided from an upper end of the first side wall to an upper end of the second side wall and including a window portion capable of transmitting laser light, and defines a space therein;
- a stage which is provided in the chamber and of which an upper surface side is a manufacturing area;
- a recoater which is provided in the chamber and supplies a metal powder to an upper surface of the stage;
- a laser irradiation unit which irradiates the metal powder deposited on the upper surface of the stage with the laser light through the window portion to manufacture a manufactured product;
- a lower nozzle which ejects an inert gas in a horizontal direction into the chamber through the lower opening;
- and
- an upper nozzle which ejects the inert gas into the chamber through the upper opening,
- wherein the upper nozzle has
- a window portion nozzle that ejects the inert gas along the window portion and
- an oblique nozzle that ejects the inert gas in an obliquely downward direction from the upper portion of the first side wall.
Dependencies are inferred from the claim text.