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Benchtop Spreadability Measurement of Powder
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Process.ORCID iD: 0000-0002-6339-4612
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-1797-3103
2020 (English)In: Proceedings - Euro PM2020 Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2020Conference paper, Published paper (Refereed)
Abstract [en]

The behaviour of metal powders when they are spread into thin layers is critical for powder bed additive manufacturing and other processes. However, there is no accepted test procedure to quantify this behaviour. There is not even an accepted metric that can be used to assess this property. This increases the difficulty of developing new powders for additive manufacturing. The current study proposes test and analysis procedures that minimise the influence of operators and are aimed at providing maximum repeatability and reproducibility while minimising the need for specialist analysis equipment. Initial testing shows that a powder with good flow properties behaves as expected as a function of recoater speeds and always exhibits superior spread metrics to powders with poor flow properties. This provides an important step towards the establishment of a robust, inexpensive test that can help additive manufacturing to grow in new industries. 

Place, publisher, year, edition, pages
European Powder Metallurgy Association (EPMA) , 2020.
Keywords [en]
Additives, Powder metallurgy, Powder metals, 'current, Flow properties, Measurements of, Powder bed, Property, Reproducibilities, Spreadability, Test procedures, Tests and analysis, Thin layers, 3D printers
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-313884Scopus ID: 2-s2.0-85125067097OAI: oai:DiVA.org:kth-313884DiVA, id: diva2:1668534
Conference
European Powder Metallurgy Congress and Exhibition, Euro PM 2020, 5 October 2020 through 7 October 2020
Note

QC 20220613

Available from: 2022-06-13 Created: 2022-06-13 Last updated: 2023-03-27Bibliographically approved

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Hulme-Smith, ChristopherHari, Vignesh

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf