Analysis on pore generation in directed energy deposition using a chamber with a cooling system

Yusuke Sugiura, Ryo Koike, Yasuhiro Kakinuma, Masaki Kondo

研究成果: Conference contribution

抄録

Directed energy deposition (DED), one of the additive manufacturing processes available for metals, is being employed in various industries. However, pore generation still remains a fatal problem that deteriorates the mechanical strength in DED products. In this study, analytical evaluation on pore generation in DED is conducted by introducing a special chamber. By classifying residual failures inside produced parts, pore generation is suppressed along with its cause. Experimental results show that the porosity rate can be drastically reduced in DED products by filling the chamber with argon, increasing the cooling rate, and applying re-melting process during deposition.

本文言語English
ホスト出版物のタイトルAIAA Scitech 2020 Forum
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624105951
DOI
出版ステータスPublished - 2020
イベントAIAA Scitech Forum, 2020 - Orlando, United States
継続期間: 2020 1 62020 1 10

出版物シリーズ

名前AIAA Scitech 2020 Forum
1 PartF

Conference

ConferenceAIAA Scitech Forum, 2020
国/地域United States
CityOrlando
Period20/1/620/1/10

ASJC Scopus subject areas

  • 航空宇宙工学

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