METHOD FOR MANUFACTURING THREE-DIMENSIONAL MOLDED OBJECT

Japanese Patent JP2016191154

A

PROBLEM TO BE SOLVED: To provide a method for suitably removing adhered powder from "an optionally and three-dimensionally arranged fluid passage" that is obtained by a powder sintering deposition method.SOLUTION: A method for manufacturing a three-dimensional molded object is provided, in which the following steps (i) and (ii) are repeated: (i) irradiating a predetermined portion of a powder layer with a light beam to sinter or to fuse and solidify the powder in the predetermined portion to form a solidified layer; and (ii) forming a new powder layer on the obtained solidified layer and then irradiating a predetermined portion of the new powder layer to form another solidified layer. In the steps (i) and (ii), a local region corresponding to a part of the inner region of a three-dimensional molded object is left as a powdery part; the powder in the powdery part is removed at last to form a fluid passage inside the molded object; and after the molded object is obtained, a fluid comprising an abrasive is made to flow as a swirling flow through the fluid passage to polish the fluid passage.SELECTED DRAWING: Figure 7

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FUWA ISAO
ABE SATOSHI
YOSHIDA TOKUO
AZUMA YOSHIKAZU
UCHINONO YOSHIYUKI
TAKENAMI MASATAKA
MATSUMOTO TAKESHI
UEDA TAKASHI
FURUMOTO TATSUAKI

JP2016113812A

November 10, 2016

June 07, 2016

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PANASONIC IP MAN CORP

B22F3/16; B22F3/105; B22F3/24; B24B31/00; B29C67/00; B33Y10/00

Samejima Mutsumi
Haruhiko Ema

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