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1. WO2020059059 - POWDER FOR METAL ADDITIVE MANUFACTURING, MANUFACTURING METHOD THEREFOR, ADDITIVE MANUFACTURING DEVICE, AND CONTROL PROGRAM THEREFOR

Publication Number WO/2020/059059
Publication Date 26.03.2020
International Application No. PCT/JP2018/034700
International Filing Date 19.09.2018
IPC
B22F 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B22F 3/105 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10Sintering only
105by using electric current, laser radiation or plasma
B22F 3/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
12Both compacting and sintering
16in successive or repeated steps
B33Y 70/00 2015.01
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
70Materials specially adapted for additive manufacturing
CPC
B22F 1/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties
B22F 3/105
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
105by using electric current ; other than for infra-red radiant energy; , laser radiation or plasma
B22F 3/16
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
12Both compacting and sintering
16in successive or repeated steps
B33Y 70/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
70Materials specially adapted for additive manufacturing
Applicants
  • 技術研究組合次世代3D積層造形技術総合開発機構 TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING [JP]/[JP]
Inventors
  • 千葉 晶彦 CHIBA Akihiko
  • 工藤 貴浩 KUDO Takahiro
  • 台野 洋平 DAINO Youhei
  • 青柳 健大 AOYAGI Kenta
Agents
  • 加藤 卓士 KATO Takashi
  • 奥住 忍 OKUZUMI Shinobu
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWDER FOR METAL ADDITIVE MANUFACTURING, MANUFACTURING METHOD THEREFOR, ADDITIVE MANUFACTURING DEVICE, AND CONTROL PROGRAM THEREFOR
(FR) POUDRE POUR FABRICATION ADDITIVE MÉTALLIQUE, SON PROCÉDÉ DE FABRICATION, DISPOSITIF DE FABRICATION ADDITIVE ET PROGRAMME DE COMMANDE ASSOCIÉ
(JA) 金属積層造形用粉末およびその製造方法と、積層造形装置およびその制御プログラム
Abstract
(EN)
The present invention provides a powder for metal additive manufacturing, wherein due to simple mechanical processing, smoking does not occur even when a preheating temperature is lowered. In this powder for metal additive manufacturing, a solidification structure including a dendrand structure of a surface of a metal powder is flattened. The flattening of the solidification structure including the dendrand structure is achieved via mechanical processing that includes collision processing of the metal powder. The mechanical processing is performed with the metal powder heated to 100°C-300°C. The powder for metal additive manufacturing is a metal powder wherein the capacitance component of the impedance as measured with the metal powder heated to a prescribed temperature is zero. This metal powder is a powder of a metal alloy that is produced according to an atomization method or a plasma rotating electrode method. This metal alloy includes a nickel-based alloy, a cobalt-chromium alloy, an iron-based alloy, an aluminum alloy, or a titanium alloy.
(FR)
La présente invention concerne une poudre pour fabrication additive métallique dans laquelle, du fait d'un traitement mécanique simple, aucune fumée ne se produit, même lorsqu'une température de préchauffage est abaissée. Dans cette poudre pour fabrication additive métallique, une structure de solidification comprenant une structure dendrand d'une surface d'une poudre métallique est aplatie. L'aplatissement de la structure de solidification comprenant la structure dendrand est obtenu par un traitement mécanique qui comprend un traitement de collision de la poudre métallique. Le traitement mécanique est réalisé avec la poudre métallique chauffée à 100 °C-300 °C. La poudre pour fabrication additive métallique est une poudre métallique, la composante de capacité de l'impédance telle que mesurée avec la poudre métallique étant chauffée à une température prescrite étant nulle. Cette poudre métallique est une poudre d'un alliage métallique qui est produite selon un procédé d'atomisation ou un procédé d'électrode rotative au plasma. Cet alliage métallique comprend un alliage à base de nickel, un alliage de cobalt-chrome, un alliage à base de fer, un alliage d'aluminium ou un alliage de titane.
(JA)
本発明は、簡単な機械的処理によって、予備加熱温度を低下させてもスモーク現象が発生しない金属積層造形用粉末を提供する。金属積層造形用粉末は、金属粉末の表面のデンドランド組織を含む凝固組織が平坦化されている。デンドランド組織を含む凝固組織の平坦化は、金属粉末の衝突処理を含む機械的処理により実現される。機械的処理は、金属粉末を100℃~300℃に加熱して行われる。金属積層造形用粉末は、所定温度に加熱されて測定されたインピーダンスの容量成分がゼロとなる金属粉末である。かかる金属粉末は、アトマイズ法またはプラズマ回転電極法により作成された金属合金の粉末である。この金属合金は、ニッケル系合金、コバルトクロム合金、鉄系合金、アルミニウム合金、チタン合金を含む。
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