LAPSE:2023.36636
Published Article
LAPSE:2023.36636
Optimising Spread-Layer Quality in Powder Additive Manufacturing: Assessing Packing Fraction and Segregation Tendency
September 20, 2023
Powder bed fusion (PBF), a subset of additive manufacturing methods, is well known for its promise in the production of fully functional artefacts with high densities. The quality of the powder bed, commonly referred to as powder spreading, is a crucial determinant of the final quality of the produced artefact in the PBF process. Therefore, it is critical that we examine the factors that impact the powder spreading, notably the powder bed quality. This study utilised a newly developed testing apparatus, designed specifically for examining the quality of powder beds. The objective was to analyse the influence of various factors, including the recoater shape, recoater gap size, and the different powder flow properties, on the powder bed relative packing fraction. Additionally, the study aimed to assess the variation in the particle size and shape across the build plate. The results indicated that all of the variables examined had an impact on the relative packing fraction, as well as the size and shape variations observed across the build plate.
Record ID
Keywords
additive manufacturing, packing fraction, powder spreading, size and shape segregation
Subject
Suggested Citation
Salehi H, Cummins J, Gallino E, Garg V, Deng T, Hassanpour A, Bradley M. Optimising Spread-Layer Quality in Powder Additive Manufacturing: Assessing Packing Fraction and Segregation Tendency. (2023). LAPSE:2023.36636
Author Affiliations
Salehi H: School of Engineering, University of Greenwich, Chatham ME4 4TB, UK; Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK
Cummins J: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Gallino E: RICOH UK Products Ltd., Telford TF2 9N, UK
Garg V: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Deng T: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Hassanpour A: School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
Bradley M: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK
Cummins J: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Gallino E: RICOH UK Products Ltd., Telford TF2 9N, UK
Garg V: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Deng T: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK [ORCID]
Hassanpour A: School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
Bradley M: Wolfson Centre, University of Greenwich, Chatham ME4 4TB, UK
Journal Name
Processes
Volume
11
Issue
8
First Page
2276
Year
2023
Publication Date
2023-07-28
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr11082276, Publication Type: Journal Article
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Published Article
LAPSE:2023.36636
This Record
External Link
doi:10.3390/pr11082276
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91
Version History
[v1] (Original Submission)
Sep 20, 2023
Verified by curator on
Sep 20, 2023
This Version Number
v1
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URL Here
https://psecommunity.org/LAPSE:2023.36636
Original Submitter
Calvin Tsay
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