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Magnesium Powder Characteristics and Implications for Powder Bed Fusion
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Processer.ORCID-id: 0000-0002-6339-4612
2020 (engelsk)Inngår i: Proceedings - Euro PM2020 Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2020Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Magnesium is the lightest metal currently processed by powder bed fusion - laser beam (PBF-LB). Its low density implies very different powder characteristics compared to materials more established within AM. To gain a greater understanding of the characteristics of magnesium powder and its implications for AM, a gas-atomized WE43 powder was characterized and processed by PBF-LB. The spreadability of the powder was evaluated using TQC Sheen Automatic Film Applicator, while in parallel, the powder was processed in PBF-LB. The flowability was evaluated using Hall and Gustafsson flowmeters. Apparent density was measured and general behaviour during handling was evaluated. The results were compared with powders commonly used in PBF-LB. The spreadability of the powder was greater than expected: the powder flowed in both the Hall and Gustavsson flowmeters, although the flow time was extremely long. Parts were successfully built in an EOS M290 printer using the powder with the as-atomized particle size distribution. 

sted, utgiver, år, opplag, sider
European Powder Metallurgy Association (EPMA) , 2020.
Emneord [en]
Flow measurement, Flowmeters, Magnesium powder, Particle size, Particle size analysis, Powder metallurgy, Apparent density, Atomized particle sizes, Flow-time, Flowability, Fusion lasers, Lower density, Particles-size distributions, Powder bed, Powder characteristics, Spreadability, Laser beams
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Identifikatorer
URN: urn:nbn:se:kth:diva-313883Scopus ID: 2-s2.0-85125075443OAI: oai:DiVA.org:kth-313883DiVA, id: diva2:1668546
Konferanse
European Powder Metallurgy Congress and Exhibition, Euro PM 2020, 5 October 2020 through 7 October 2020
Merknad

Part of proceedings: ISBN 9781899072514, QC 20220613

Tilgjengelig fra: 2022-06-13 Laget: 2022-06-13 Sist oppdatert: 2022-06-25bibliografisk kontrollert

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Hulme-Smith, Christopher

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