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

Ryo Koike, Shiho Takemura, Yasuhiro Kakinuma, Masaki Kondo

研究成果: Conference contribution

4 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
78
ISBN(電子版)9781510875692
DOI
出版ステータスPublished - 2018 1 1
イベント6th CIRP Global Web Conference, CIRPe 2018 -
継続期間: 2018 10 232018 10 25

Other

Other6th CIRP Global Web Conference, CIRPe 2018
Period18/10/2318/10/25

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 産業および生産工学

フィンガープリント

「Enhancement of powder supply efficiency in directed energy deposition based on gas-solid multiphase-flow simulation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル