PRODUCTION METHOD FOR THREE-DIMENSIONALLY SHAPED OBJECT, AND THREE-DIMENSIONALLY SHAPED OBJECT

WIPO Patent Application WO/2013/137283

A1

Provided is a method for suitably removing attached powder from "an arbitrarily three-dimensionally arranged fluid path" obtained using selective laser sintering. This method for producing a three-dimensionally shaped object repeatedly performs powder-layer formation and solidified-layer formation, by performing: a step (i) in which a light beam is irradiated on a prescribed location on a powder layer, the powder at the prescribed location is sintered or is melted and solidified, and a solidified layer is formed; and a step (ii) in which a new powder layer is formed upon the obtained solidified layer, the light beam is irradiated on a prescribed location on the new powder layer, and another solidified layer is formed. In steps (i) and (ii), a local area corresponding to part of the internal area of the three-dimensionally shaped object is left as a section in a powder state, and a fluid path is formed inside the shaped object by ultimately removing the powder from this section in a powder state. After the shaped object is obtained, the fluid path is polished by causing a fluid comprising a polishing agent to flow as a turbulent flow inside the fluid path.

FUWA ISAO
ABE SATOSHI
HIGASHI YOSHIKAZU
YOSHIDA NORIO
UCHINONO YOSHIYUKI
TAKENAMI MASATAKA
MATSUMOTO ISAMU

PCT/JP2013/056879

September 19, 2013

March 06, 2013

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PANASONIC CORP (JP)

B22F3/16; B22F3/105; B22F3/24; B29C67/00; C22C38/00

JP2004027329A	2004-01-29
JP2010047779A	2010-03-04
JP2008081840A	2008-04-10
JPH09324203A	1997-12-16

SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)

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