Journal of Advanced Mechanical Design, Systems, and Manufacturing
Online ISSN : 1881-3054
ISSN-L : 1881-3054
Papers(Special Issue)
Relationship between solidification time and porosity with directed energy deposition of Inconel 718
Tatsuhiko KURIYARyo KOIKETakanori MORIYasuhiro KAKINUMA
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2018 Volume 12 Issue 5 Pages JAMDSM0104

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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.

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© 2018 by The Japan Society of Mechanical Engineers
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