Optimizing Quality of Additively Manufactured Inconel 718 Using Powder Bed Laser Melting Process

By Magda Sadowski, Leila Ladani, W. Brindley, John Romano. 2016

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Review of Powder Bed Fusion Additive Manufacturing for Metals (2021, background): “Similar effects such as increase density due to increase laser power and better surface finish in lower scan speeds were observed in parts built using laser [132].”
Effects of Selective Laser Melting additive manufacturing parameters of Inconel 718 on porosity, microstructure and mechanical properties (2018, unknown): “Sadowski et al. [29] seek to optimise the quality of the SLM process for Inconel 718 and use the factor known as “ Linear Energy Density (LED) ” , which is the ratio between the laser power and the velocity to qualify the melt pool.”
An overview of wire arc additive manufacturing (WAAM) in shipbuilding industry (2020, background): “Therefore, these AM processes are more suitable for the production of small-sized components (Romano et al. 2015; Sadowski et al. 2016; Zhao et al. 2016).”
Characteristics of Inconel Powders for Powder-Bed Additive Manufacturing (2017, background): “For example, SLM currently uses powders with particle sizes ranging from 15 μm to 63 μm, while the PSD for electron beam melting (EBM) varies from 45 μm to 105 μm, due to technical challenges such as smoking and sparking effects [7,9].”