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Determination of the Frictional Behavior at Compaction of Powder Materials Consisting of Spray-Dried Granules
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). Sandvik Coromant AB, Sweden.
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.). KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.ORCID iD: 0000-0001-7674-8582
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-6232-8819
2018 (English)In: Journal of materials engineering and performance (Print), ISSN 1059-9495, E-ISSN 1544-1024, Vol. 27, no 3, p. 1308-1317Article in journal (Refereed) Published
Abstract [en]

The frictional behavior during powder compaction and ejection is studied using an instrumented die with eight radial sensors. The average friction over the total powder pillar is used to determine a local friction coefficient at each sensor. By comparing forces at compaction with forces at ejection, it can be shown that the Coulomb's friction coefficient can be described as a function of normal pressure. Also stick phenomena has been investigated in order to assess its influence on the determination of the local friction coefficient.

Place, publisher, year, edition, pages
Springer, 2018. Vol. 27, no 3, p. 1308-1317
Keywords [en]
Coulomb friction, cutting inserts, die friction, FEM, finite element simulations, granular powder, powder compaction, reverse engineering, stick, wall friction, WC-Co powder
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-224684DOI: 10.1007/s11665-018-3205-1ISI: 000426701000041Scopus ID: 2-s2.0-85042867461OAI: oai:DiVA.org:kth-224684DiVA, id: diva2:1193065
Note

QC 20180326

Available from: 2018-03-26 Created: 2018-03-26 Last updated: 2018-03-26Bibliographically approved

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Staf, HjalmarOlsson, ErikLarsson, Per-Lennart

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