Title:
THREE-DIMENSIONAL SHAPING DEVICE AND THREE-DIMENSIONAL SHAPING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/220901
Kind Code:
A1
Abstract:
A three-dimensional shaping device that irradiates a powder material provided inside a chamber with an electron beam and heats the powder material to shape a three-dimensional object, said device being configured to comprise: a beam emission unit which emits the electron beam and irradiates the powder material with the electron beam; a gas supply unit which supplies inert gas to the inside of the chamber; and a heating unit which heats the inert gas supplied to the inside of the chamber.
Inventors:
SHIMIZU RIKU (JP)
Application Number:
PCT/JP2019/017491
Publication Date:
November 21, 2019
Filing Date:
April 24, 2019
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
B22F3/16; B22F3/105; B29C64/153; B29C64/295; B29C64/371; B33Y10/00; B33Y30/00; B33Y40/00
Foreign References:
JP2012162077A | 2012-08-30 | |||
JP2016534903A | 2016-11-10 | |||
US20180043621A1 | 2018-02-15 | |||
JP2013091316A | 2013-05-16 | |||
US20180085826A1 | 2018-03-29 | |||
JP2013237930A | 2013-11-28 | |||
JP2008307895A | 2008-12-25 | |||
JPS611707B2 | 1986-01-20 | |||
JPS6132962B2 | 1986-07-30 |
Other References:
See also references of EP 3795279A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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