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

Title:

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

Document Type and Number:

WIPO Patent Application WO/2016/017155

Kind Code:

A1

Abstract:

In order to provide a powder sintering lamination method that reduces warpage of a three-dimensionally shaped molded article that can occur due to stress near the top surface of the three-dimensionally shaped molded article, the present invention provides a method for producing a three-dimensionally shaped molded article whereby powder layer formation and solidified layer formation by means of irradiation with a light beam are carried out repeatedly. In particular, in the present invention, by configuring a portion of the region in which the solidified layer is formed to be a non-irradiated portion that is not irradiated with the light beam, at least one slit groove for reducing the stress on the three-dimensionally shaped molded article is provided on the top surface of the three-dimensionally shaped molded article.

Inventors:

TAKENAMI MASATAKA
ABE SATOSHI
MORI MIKIO

Application Number:

PCT/JP2015/003789

Publication Date:

February 04, 2016

Filing Date:

July 28, 2015

Export Citation:

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Assignee:

PANASONIC IP MAN CO LTD (JP)

International Classes:

B29C67/00; B22F3/105; B33Y10/00; B33Y80/00

Domestic Patent References:

WO2010150805A1

2010-12-29

Foreign References:

JP2008101256A	2008-05-01
JPH09226010A	1997-09-02
JPH03193433A	1991-08-23
JP2005507805A	2005-03-24
JPH11227053A	1999-08-24
JPH07503915A	1995-04-27

Other References: