Influence of metal powder characteristics on product quality with directed energy deposition of Inconel 625

Yasuhiro Kakinuma; Masahiko Mori; Yohei Oda; Takanori Mori; Makoto Kashihara; Adam Hansel; Makoto Fujishima

doi:10.1016/j.cirp.2016.04.058

Influence of metal powder characteristics on product quality with directed energy deposition of Inconel 625

Yasuhiro Kakinuma, Masahiko Mori, Yohei Oda, Takanori Mori, Makoto Kashihara, Adam Hansel, Makoto Fujishima

Department of System Design Engineering

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface.

Original language	English
Pages (from-to)	209-212
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	65
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2016.04.058
Publication status	Published - 2016

Keywords

Directed energy deposition
Powder
Rapid prototyping

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2016.04.058

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abstract = "Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface.",

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AU - Kakinuma, Yasuhiro

AU - Mori, Masahiko

AU - Oda, Yohei

AU - Mori, Takanori

AU - Kashihara, Makoto

AU - Hansel, Adam

AU - Fujishima, Makoto

PY - 2016

Y1 - 2016

N2 - Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface.

AB - Directed energy deposition (DED) for producing a complex shaped metal part has attracted attention in the aerospace industry. However, DED easily causes structural defects such as voids and compositional changes, which results in the deterioration of the mechanical strength of the product. Hence, reducing such defects is essential. In this study, the influence of the powder characteristics of Inconel 625 was focused upon, and the void density and compositional change inside the deposited part were analyzed. The results indicated that a slight amount of carbon in the particle caused void generation and a carbon layer was formed at the surface.

KW - Directed energy deposition

KW - Powder

KW - Rapid prototyping

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Influence of metal powder characteristics on product quality with directed energy deposition of Inconel 625

Abstract

Keywords

ASJC Scopus subject areas

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