METHOD FOR PRODUCING THREE-DIMENSIONALLY SHAPED MOULDED ARTICLE, AND THREE-DIMENSIONALLY SHAPED MOULDED ARTICLE

WIPO Patent Application WO/2017/022145

A1

The purpose of the present invention is to provide a method for producing a three-dimensionally shaped moulded article exhibiting more suitable heat removal properties as a die. The present invention provides a method for producing a three-dimensionally shaped moulded article, wherein a step (i) in which a prescribed portion of a powder layer is irradiated with a light beam to sinter or melt and harden the powder in the prescribed portion, and form a hardened layer, and a step (ii) in which a new powder layer is formed on the resultant hardened layer, and a prescribed portion of the new powder layer is irradiated with a light beam to form an additional hardened layer, are performed to alternately and repeatedly form powder layers and hardened layers. Notably, in this production method, a cooling medium passage is formed inside the three-dimensionally shaped moulded article, the surface of the three-dimensionally shaped moulded article is formed so as to be uneven, and the uneven surface and a portion of the contour surface of the cooling medium passage are made to have the same shape as each other.

MORIMOTO MASANORI
ABE SATOSHI
NAKAMURA AKIFUMI
FUWA ISAO

PCT/JP2016/000645

February 09, 2017

February 08, 2016

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PANASONIC IP MAN CO LTD (JP)

B29C67/00; B22F3/105; B22F3/16; B22F5/00; B29C33/38; B33Y10/00; B33Y80/00

WO2010082331A1

2010-07-22

JP2006264163A	2006-10-05
JP2006061924A	2006-03-09
JP2009196138A	2009-09-03
JP2008110608A	2008-05-15
JP2006168299A	2006-06-29

SAMEJIMA, Mutsumi et al. (JP)

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