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

Authors :: Tatsuhiko KURIYA
Ryo KOIKE
Takanori MORI
Yasuhiro KAKINUMA
Source :: Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 12, Iss 5, Pp JAMDSM0104-JAMDSM0104 (2018)
Publication Year :: 2018
Publisher :: The Japan Society of Mechanical Engineers, 2018.
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.

Subjects :: additive manufacturing
directed energy deposition
inconel 718
porosity
solidification time
3d printing
cnc machine tool
high-speed camera
two-color temperature measurement
Engineering machinery, tools, and implements
TA213-215
Mechanical engineering and machinery
TJ1-1570

Language :: English
ISSN :: 18813054
Volume :: 12
Issue :: 5
Database :: Directory of Open Access Journals
Journal :: Journal of Advanced Mechanical Design, Systems, and Manufacturing
Publication Type :: Academic Journal
Accession number :: edsdoj.bb24737c93c344beb587d307c63f4d71
Document Type :: article
Full Text :: https://doi.org/10.1299/jamdsm.2018jamdsm0104

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