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Title:
METAL LAMINATED SHAPED ARTICLE, ALUMINUM-BASED POWDER FOR METAL LAMINATION SHAPING, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/122937
Kind Code:
A1
Abstract:
The present invention provides a metal laminated shaped article that includes aluminum and that is sound and free of defects. The metal lamination shaping powder according to the present invention for shaping this metal laminated shaped article is an aluminum-based powder having a 50% particle size of 10 µm to less than 100 µm on a volume basis when the particle size distribution is measured by a laser diffraction/scattering method, a specific surface area of 0.5 m2/g or less, and an oxygen amount per unit surface area of 30 mg/m2 to 100 mg/m2, the relationship between the hydrogen amount (X mL: standard state) per 100 g of the aluminum-based powder and the specific surface area (Y m2/g), and the relationship between the hydrogen amount (X mL: standard state) and the oxygen amount (Z weight%) being represented by X/Y < 151 and Z/X > 0.0022. A metal laminated shaped article shaped through use of a three-dimensional lamination shaping device using this metal lamination shaping powder by a powder-floor melt-bonding system has a hydrogen content of 3 mL or less per 100 g (standard state) and a relative density of 99% or greater.

Inventors:
HASHIZUME YOSHIKI (JP)
MURAKAMI ISAO (JP)
MURAMATSU KENJI (JP)
ISHIGAMI KENTA (JP)
Application Number:
PCT/JP2016/088773
Publication Date:
July 05, 2018
Filing Date:
December 26, 2016
Export Citation:
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Assignee:
TECH RES ASSOCIATION FUTURE ADDITIVE MANUFACTURING (JP)
International Classes:
B22F1/052; B22F3/105; B22F3/16; B22F9/08; B33Y70/00; B33Y80/00
Domestic Patent References:
WO2016185966A12016-11-24
WO2005066380A12005-07-21
Foreign References:
JP2011021218A2011-02-03
JP2004149826A2004-05-27
Other References:
See also references of EP 3366390A4
Attorney, Agent or Firm:
KATO Takashi et al. (JP)
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