Relationship between solidification time and porosity with directed energy deposition of inconel 718

Tatsuhiko Kuriya; Ryo Koike; Yasuhiro Kakinuma; Takanori Mori

doi:10.1299/jsmelem.2017.9.132

Relationship between solidification time and porosity with directed energy deposition of inconel 718

Tatsuhiko Kuriya, Ryo Koike, Yasuhiro Kakinuma, Takanori Mori

Department of System Design Engineering

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

Abstract

Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.

Original language	English
DOIs	https://doi.org/10.1299/jsmelem.2017.9.132
Publication status	Published - 2017 Nov 13
Event	9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 - Hiroshima City, Japan Duration: 2017 Nov 13 → 2017 Nov 17

Other

Other	9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017
Country	Japan
City	Hiroshima City
Period	17/11/13 → 17/11/17

Keywords

3D printing
Directed Energy Deposition
Inconel 718
Porosity
Solidification time

ASJC Scopus subject areas

Industrial and Manufacturing Engineering

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Relationship between solidification time and porosity with directed energy deposition of inconel 718. / Kuriya, Tatsuhiko; Koike, Ryo ; Kakinuma, Yasuhiro; Mori, Takanori.

2017. Paper presented at 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017, Hiroshima City, Japan.

Research output: Contribution to conference › Paper › peer-review

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AB - Directed Energy Deposition (DED) of metal materials has been widely studied with Inconel 718 using in aerospace industry. Void generation in a deposited part causes deterioration of the mechanical strength. Hence, void should be avoided in the DED process. In this study, a mechanism of void generation was investigated through the dynamic observation by high-speed camera, the thermal observation and the evaluation of the porosity. The experimental result shows that solidification time has an influence on the void generation.

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