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Document type:
Zeitschriftenaufsatz
Author(s):
Ryan W. Penny, Daniel Oropeza, Patrick M. Praegla, Reimar Weissbach, Christoph Meier, Wolfgang A. Wall, A. John Hart
Title:
Quantitative analysis of thin metal powder layers via transmission X-ray imaging and discrete element simulation: Blade-based spreading approaches
Abstract:
Spreading uniform and dense layers is of paramount importance to creating high-quality components using powder bed fusion additive manufacturing (PBF AM). Blade-like tools are often employed for spreading powder metal feedstocks, especially in laser powder bed fusion (LPBF) and electron beam melting (EBM), where powders are characterized by a D50𝑉 of 30 μm or greater. Along with variations in boundary conditions introduced by the layer-wise geometry and surface topography of the printed componen...     »
Keywords:
Additive manufacturing Powder spreading X-ray Packing density Discrete element method Powder flow
Journal title:
Power Technology
Year:
2024
Covered by:
Scopus
Reviewed:
ja
Language:
en
Fulltext / DOI:
doi:10.1016/j.powtec.2023.119106
Status:
Verlagsversion / published
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