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Title:
THREE-DIMENSIONAL STRUCTURE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2007070655
Kind Code:
A
Abstract:

To produce a three-dimensional structure which has a strength usable for a component of even a die that shots a large number of articles, while having a degassing function as well.

In a method for producing the three-dimensional structure by the steps of forming a layer of an inorganic or organic powder material 102 on a table 600 for sintering, sequentially forming sintered layers 101a, 101b and so forth, by sintering a predetermined portion of the powder layer 103 through irradiating a predetermined portion with a light beam (L), and thereby integrating a plurality of sintered layers 101a, 101b and so forth to form a sintered section 101, the production method includes forming a high-density region 401 with a high sintered density and a plurality of low-density regions 402, which have lower sintered density than the high-density region 401 and are porous, in a face of at least one of the sintered layers 101a, 101b and so forth, by changing the irradiance of the light beam L.


Inventors:
SHINOHARA SHINICHI
TANAKA TOMOMI
TSURUTA TAKASHI
NISHITANI KENJI
Application Number:
JP2005000255781
Publication Date:
March 22, 2007
Filing Date:
September 05, 2005
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
B22F3/105; B22F3/11; B22F3/16
Domestic Patent References:
JP2004142427A2004-05-20
JP2002322501A2002-11-08
Attorney, Agent or Firm:
Takao Itagaki
Yoshihiro Morimoto
Toshiji Sasahara
Youhei Harada