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Title:
ADDITIVE MANUFACTURING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/159644
Kind Code:
A1
Abstract:
Provided is an additive manufacturing apparatus of a powder bed fusion type, the apparatus being capable of improving the quality of a product by laying material powder highly densely in a uniform thickness. This additive manufacturing apparatus is provided with: a material laying unit 71 which lays and levels material powder P; a material compressing unit 72 which compresses the material powder P laid by the material spreading unit 71; and a surface layer removing unit 73 which scrapes off a surface layer section of the material powder P compressed by the material compressing unit 72.

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Inventors:
SAITOU NOBORU (JP)
OONUMA ATSUHIKO (JP)
AOTA KINYA (JP)
KAWANAKA HIROTSUGU (JP)
MATSUSHITA SHINJI (JP)
YANG YINGJUAN (JP)
Application Number:
PCT/JP2019/002325
Publication Date:
August 22, 2019
Filing Date:
January 24, 2019
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
B29C64/188; B22F3/105; B22F3/16; B28B1/30; B29C64/153; B29C64/214; B29C64/218; B33Y30/00
Domestic Patent References:
WO2016205758A12016-12-22
Foreign References:
US20170165751A12017-06-15
JPH08294785A1996-11-12
JP2015193134A2015-11-05
JP2016141085A2016-08-08
JP2017217910A2017-12-14
JP2017087469A2017-05-25
JP2016107543A2016-06-20
JP2018196968A2018-12-13
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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