Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation

Ryo Koike; Shiho Takemura; Yasuhiro Kakinuma; Masaki Kondo

doi:10.1016/j.procir.2018.09.061

Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation

Ryo Koike, Shiho Takemura, Yasuhiro Kakinuma, Masaki Kondo

システムデザイン工学科

研究成果: Conference contribution

10 被引用数 (Scopus)

抄録

Directed energy deposition is an additive manufacturing process which produces deposits by irradiating laser beam on the baseplate and supplying material powder to the meltpool. Although the material powder is generally conveyed with carrier-gas flow, the powders diffuse and some of them do not reach to the meltpool. In order to suppress the waste of materials, the particle movement should be analyzed and modified not only from the viewpoint of deposition conditions but also the nozzle design. Against this background, this paper presents analytical and measurement results of powder distribution under the nozzle and proposes a nozzle design to reduce the waste of material powder based on a gas-solid multiphase-flow simulation. The experimental result of designed nozzle certainly shows high powder supply efficiency of 74.8%, whereas that of the conventional nozzle is 52.6%.

本文言語	English
ホスト出版物のタイトル	6th CIRP Global Web Conference, CIRPe 2018
ホスト出版物のサブタイトル	Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era
編集者	Alessandro Simeone, Paolo C. Priarone
出版社	Elsevier B.V.
ページ	133-137
ページ数	5
巻	78
ISBN（電子版）	9781510875692
DOI	https://doi.org/10.1016/j.procir.2018.09.061
出版ステータス	Published - 2018 1月 1
イベント	6th CIRP Global Web Conference, CIRPe 2018 - 継続期間: 2018 10月 23 → 2018 10月 25

Other

Other	6th CIRP Global Web Conference, CIRPe 2018
Period	18/10/23 → 18/10/25

ASJC Scopus subject areas

制御およびシステム工学
産業および生産工学

文献へのアクセス

10.1016/j.procir.2018.09.061

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引用スタイル

Koike, R., Takemura, S., Kakinuma, Y., & Kondo, M. (2018). Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation. In A. Simeone, & P. C. Priarone (Eds.), 6th CIRP Global Web Conference, CIRPe 2018: Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era (Vol. 78, pp. 133-137). Elsevier B.V.. https://doi.org/10.1016/j.procir.2018.09.061

Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation. / Koike, Ryo; Takemura, Shiho; Kakinuma, Yasuhiro その他.
6th CIRP Global Web Conference, CIRPe 2018: Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era. ed. / Alessandro Simeone; Paolo C. Priarone. Vol. 78 Elsevier B.V., 2018. p. 133-137.

研究成果: Conference contribution

Koike, R, Takemura, S, Kakinuma, Y & Kondo, M 2018, Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation. in A Simeone & PC Priarone (eds), 6th CIRP Global Web Conference, CIRPe 2018: Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era. vol. 78, Elsevier B.V., pp. 133-137, 6th CIRP Global Web Conference, CIRPe 2018, 18/10/23. https://doi.org/10.1016/j.procir.2018.09.061

Koike R, Takemura S, Kakinuma Y, Kondo M. Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation. In Simeone A, Priarone PC, editors, 6th CIRP Global Web Conference, CIRPe 2018: Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era. Vol. 78. Elsevier B.V. 2018. p. 133-137 doi: 10.1016/j.procir.2018.09.061

Koike, Ryo ; Takemura, Shiho ; Kakinuma, Yasuhiro その他. / Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation. 6th CIRP Global Web Conference, CIRPe 2018: Envisaging the Future Manufacturing, Design, Technologies and Systems in Innovation Era. editor / Alessandro Simeone ; Paolo C. Priarone. Vol. 78 Elsevier B.V., 2018. pp. 133-137

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abstract = "Directed energy deposition is an additive manufacturing process which produces deposits by irradiating laser beam on the baseplate and supplying material powder to the meltpool. Although the material powder is generally conveyed with carrier-gas flow, the powders diffuse and some of them do not reach to the meltpool. In order to suppress the waste of materials, the particle movement should be analyzed and modified not only from the viewpoint of deposition conditions but also the nozzle design. Against this background, this paper presents analytical and measurement results of powder distribution under the nozzle and proposes a nozzle design to reduce the waste of material powder based on a gas-solid multiphase-flow simulation. The experimental result of designed nozzle certainly shows high powder supply efficiency of 74.8%, whereas that of the conventional nozzle is 52.6%.",

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Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation

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