FEMS EUROMAT 2023
Lecture
04.09.2023
A critical review of the correlation of AlSi10Mg powder production methods and properties on its processability by Laser Powder Bed Fusion
LS

Lucas Salomão Peres (M.Sc.)

University of São Paulo

Salomão Peres, L. (Speaker)¹; Fernandes Ribeiro, L.²; Gargarella, P.³; Ferreira Batalha, G.⁴
¹CBA/USP, Aluminio (Brazil); ²CBA / Unicamp, Aluminio (Brazil); ³UFSCar, São Carlos (Brazil); ⁴USP, São Paulo (Brazil)
Vorschau
10 Min. Untertitel (CC)

The standards are advancing to control the feedstock for additive manufacturing. Although it is necessary for more attention to limities of equipaments capabilities for laser powder bed fusion (L-PBF) and how this affect the microestruture of parts produced by this method. The process based on L-PBF requires powders with controlled particle size distribution, morphology and surface roughness due to its impact in the flowability of the powder during aditive manufacture. A important characteristic that should be noticed is the low energy of absortion of the AlSi10Mg, which is controlled by the surface and the particle dize distribution of the powder. There are many processes to produce powders for additive manufacturing, but the best methods to produce AlSi10Mg powders for L-PBF are plasma and gas atomization. Other methods are evolving but do not present the high powder productivity and/or quality required. Satellite particles should be controlled during powder production because it is difficult to separate them after the atomization process, they have high surface energy and increase the agglomeration of the powder. In this study, a critical review will be presented on the correlation of AlSi10Mg powder production methods and properties with its processability by L-PBF. This review aims to present literature results and discuss how to improve AlSi10Mg powder for the L-PBF. Some key topics requiring attention for further development will be highlighted and discussed.


Abstract

Abstract

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