METHOD AND DEVICE FOR MANUFACTURING THREE- DIMENSIONALLY SHAPED ARTICLE

Japanese Patent JP3433745

B2

PROBLEM TO BE SOLVED: To surely obtain a shaped article having a smooth surface.
SOLUTION: Powder metallurgical sintered parts in which a plurality of sintered layers 11 are integrally laminated are manufactured by repeating a procedure consisting of steps of; forming a sintered layer 11 by irradiating the prescribed part of a layer 10 of inorganic or organic powders with a light beam to sinter the powder in the corresponding part, and forming a new sintered layer 11 integrated with the previously-formed sintered layer 11 as a lower layer by covering the previously-formed sintered layer 11 with a new layer 10 of the powder material and irradiating the prescribed part with the light beam L to sinter the powder in the corresponding part. In this method, a step wherein the surface and/or unnecessary part of the formed part obtained is removed after the formation of the sintered layer 11 is inserted between a plurality of manufacturing steps of the sintered layer 11. For forming a new layer of the powder material immediately after the removal step, the supply amount of the powder material is larger than that of other steps.

Kiman Higashi
Seizo Machida
Isao Fuwa
Satoshi Abe
Hirohiko Togeyama
Masataka Takenan
Uenaga Master
Norio Yoshida

JP2001363732A

August 04, 2003

November 29, 2001

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MATSUSHITA ELECTRIC WORKS,LTD.

B22F3/105; B22F3/16; B29C67/00; (IPC1-7): B29C67/00; B22F3/105; B22F3/16

JP200073108A
JP2002115004A

【文献】特許3010312(JP,B2)

Keisei Nishikawa (1 person outside)

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