POWDER LAMINATE MOLDED ARTICLE AND PRODUCTION METHOD THEREFOR

WIPO Patent Application WO/2019/234974

A1

Provided are a powder laminate molded article and a production method therefor capable of suppressing warpage deformation and surface roughness that are problems involved in powder laminate molded articles produced using a laser. This production method for a powder laminate molded article uses a laser-sintering powder molding device, the method involving molding the lowermost layer of the powder laminate molded article by melting and sintering a material powder through irradiation with a high-energy laser, and molding of an intermediate layer of the powder laminate molded article by melting and sintering a material powder through irradiation of a high-energy laser at an outer shell part and through irradiation of a low-energy laser in an inner part. The powder laminate molded article is produced by molding the uppermost lay thereof by melting and sintering a material powder through irradiation with a high-energy laser.

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YAMAGUCHI AKIHIRO (JP)
ARAI SATOSHI (JP)
TSUNODA SHIGEHARU (JP)

PCT/JP2019/004875

December 12, 2019

February 12, 2019

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HITACHI LTD (JP)

B29C64/268; B29C64/153; B33Y10/00; B33Y80/00

WO2007058160A1

2007-05-24

JP2004142427A	2004-05-20
JPH08504139A	1996-05-07
JP2006513055A	2006-04-20
JP2002115004A	2002-04-19
JP2005171299A	2005-06-30
JPH08260162A	1996-10-08

SEIRYO I.P.C. (JP)

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