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Title:
ADDITIVE FABRICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/022172
Kind Code:
A1
Abstract:
An additive fabrication device comprises a lower nozzle (21) that blows out inert gas into a chamber (11) in a horizontal direction through a lower opening portion (33A) formed in a lower part of a first side wall (33) constituting the chamber (11), an upper nozzle (24) that blows out the inert gas into the chamber through an upper opening portion (33B) formed in an upper part of the first side wall (33), wherein the upper nozzle (24) includes a window nozzle (48) that blows out the inert gas along an inner surface (32Aa) of a window portion (32A) of a top board (32) constituting the chamber (11), and an oblique nozzle (51) that blows out the inert gas obliquely downward from the upper portion of the first side wall (33).

Inventors:
HIGASHI KEI (JP)
YOSHIDA KAZUHIRO (JP)
KURIMURA CHIKARA (JP)
KOMAKI TAKANAO (JP)
Application Number:
JP2019/028205
Publication Date:
January 30, 2020
Filing Date:
July 18, 2019
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
B22F3/105; B22F3/16; B29C64/153; B29C64/371; B33Y30/00
Domestic Patent References:
WO2017013454A22017-01-26
WO2017208553A12017-12-07
Foreign References:
US20180126460A12018-05-10
JP2017538038A2017-12-21
JP2018501132A2018-01-18
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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