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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING ADDITIVE MANUFACTURED METAL OBJECT, AND ADDITIVE MANUFACTURED METAL OBJECT
Document Type and Number:
WIPO Patent Application WO/2019/111827
Kind Code:
A1
Abstract:
Provided is a method for manufacturing an additive manufactured metal object having a fused part forming step for forming a fused part by irradiating a metal powder with a laser or electron beam while moving the same and thereby melting and fusing the metal powder, a powder supply step for supplying another metal powder onto the fused part, and a fused part expansion step for irradiating the other metal powder on the fused part with a laser or electron beam while moving the same and thereby melting and fusing the other metal powder along with the fused part so as to expand the fused part, wherein the fused part expansion step has a step for: repeating a step of scanning the laser or electron beam and forming a molten pool and a step for shifting the laser or electron beam scanning region from the molten pool and forming the next molten pool so as to partially overlap the molten pool; and expanding the fused structure of the fused part in a direction inclined from the layering direction of the additive manufactured metal object.

Inventors:
OHTSUBO, Yasuhiko (2-70, Konan 1-chome, Minato-k, Tokyo 24, 〒1058224, JP)
OGOSHI, Shuuhei (2-70, Konan 1-chome, Minato-k, Tokyo 24, 〒1058224, JP)
ISHIMOTO, Takuya (1-1 Yamadaoka, Suita-sh, Osaka 71, 〒5650871, JP)
ARAKI, Hideki (1-1 Yamadaoka, Suita-sh, Osaka 71, 〒5650871, JP)
NAKANO, Takayoshi (1-1 Yamadaoka, Suita-sh, Osaka 71, 〒5650871, JP)
Application Number:
JP2018/044293
Publication Date:
June 13, 2019
Filing Date:
November 30, 2018
Export Citation:
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Assignee:
HITACHI METALS,LTD. (2-70, Konan 1-chome Minato-k, Tokyo 24, 〒1088224, JP)
OSAKA UNIVERSITY (1-1 Yamadaoka, Suita-shi Osaka, 71, 〒5650871, JP)
International Classes:
B22F3/105; B22F3/16; B33Y10/00; B33Y80/00
Foreign References:
JP2014129597A2014-07-10
JP2017137567A2017-08-10
JP2002038201A2002-02-06
JP2017025401A2017-02-02
JP2016029195A2016-03-03
JP2016534902A2016-11-10
JP2015178191A2015-10-08
JP2018115090A2018-07-26
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (TAIYO, NAKAJIMA & KATO Seventh Floor, HK-Shinjuku Bldg., 3-17, Shinjuku 4-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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