PROCESS FOR PRODUCING THREE-DIMENSIONALLY SHAPED OBJECT

Title:

PROCESS FOR PRODUCING THREE-DIMENSIONALLY SHAPED OBJECT

Document Type and Number:

WIPO Patent Application WO/2007/058160

Kind Code:

A1

Abstract:

Cured layers each formed by sintering a powder layer with light beams are superposed to produce a three-dimensionally shaped object. That part of the shaped object which forms a shell is constituted of high-density cured layers and the other part is constituted of low-density cured layers. At least the high-density cured layers constituting the side faces of the shaped object each comprises a primary high-density cured layer formed by primary irradiation of a powder layer with light beams and a secondary high-density cured layer formed by the secondary irradiation of a complementary powder layer supplied on the primary high-density cured layer. Due to this, each high-density cured layer can be made to have the same height as the corresponding low-density cured layer, and the cured layers each comprising a high-density cured layer and a low-density cured layer each can be made to have an even height. Thus, a precisely shaped object can be produced.

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Inventors:

ABE SATOSHI (JP)

Application Number:

PCT/JP2006/322629

Publication Date:

May 24, 2007

Filing Date:

November 14, 2006

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC WORKS LTD (JP)
ABE SATOSHI (JP)

International Classes:

B22F3/16; B22F3/105; B29C67/00

Domestic Patent References:

WO2004056509A1

2004-07-08

Foreign References:

JP2002038201A	2002-02-06
JPH11347761A	1999-12-21

Other References: