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Effect of particle size distribution at powder compaction
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-7674-8582
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-6232-8819
2011 (English)In: Proceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2011, European Powder Metallurgy Association (EPMA) , 2011, Vol. 3, 265-270 p.Conference paper, Published paper (Refereed)
Abstract [en]

The Discrete Element Method (DEM) has been used to investigate the effects of particle size distribution during closed die compaction of powders. In the simulations, the effect of considering rotational degrees of freedom in the analysis is studied. Both loading and unloading of the powder compound is investigated and the particle size distribution is assumed to be a truncated normal distribution. The powder particles are assumed rigid plastic in compression and following Hertz elastic contact law during unloading. From a convergence study, it was found that 4000 particles were sufficient to represent the global properties of the powder compact. Among other things, the results show that when the size of the particles does not deviate considerably from the average size, the effect on global compaction properties is basically negligible.

Place, publisher, year, edition, pages
European Powder Metallurgy Association (EPMA) , 2011. Vol. 3, 265-270 p.
Keyword [en]
Closed die compaction, Discrete element modelling, Powder
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-80875Scopus ID: 2-s2.0-84902151848ISBN: 978-189907220-0 (print)OAI: oai:DiVA.org:kth-80875DiVA: diva2:496864
Conference
European International Powder Metallurgy Congress and Exhibition, Euro PM 2011, Barcelona, Spain, 9 October 2011 through 12 October 2011
Note

QC 20120410

Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2015-04-22Bibliographically approved

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Olsson, ErikLarsson, Per-Lennart

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  • apa
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Output format
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