Numerical and experimental investigation into gas flow field and spattering phenomena in laser powder bed fusion processing of Inconel 718

Accumulated spatters not only deteriorate the quality of the built parts in terms of surface roughness and/or density but also sabotage the whole fabrication process via damaging the powder re-coater. A cross-flow of inert gas inside the processing chamber is by far the only effective mean of removi...

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Bibliographic Details
Main Authors: Cheng-Yen Chien, Trong-Nhan Le, Ze-Hong Lin, Yu-Lung Lo
Format: Article
Language:English
Published: Elsevier 2021-11-01
Series:Materials & Design
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0264127521006626