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Evaluation of an advanced powder-die frictional model
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).ORCID iD: 0000-0001-8653-393x
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).ORCID iD: 0000-0001-6232-8819
2020 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 363, p. 569-574Article in journal (Refereed) Published
Abstract [en]

It is known that the shape of a cutting insert blank, after pressing and sintering, can be predicted with finite element (FE) simulations. It is also known that such simulations have the potential to save costs and time when used for press tool compensation. However, in such simulations (and in a real situation), the frictional behaviour has a great influence on the results. Therefore, in this study, two frictional models are discussed and implemented into a commercial FE-program. The results from the different frictional descriptions, when for instance analysing density after compaction, shows a clear difference. It can be concluded that the frictional behaviour at powder pressing has to be modelled in detail, also at low forces.

Place, publisher, year, edition, pages
ELSEVIER , 2020. Vol. 363, p. 569-574
Keywords [en]
Powder pressing, Cylindrical die, Cemented carbide powder, Frictional behaviour, Finite element analysis, Relative density
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-273523DOI: 10.1016/j.powtec.2020.01.048ISI: 000527962700051Scopus ID: 2-s2.0-85079103644OAI: oai:DiVA.org:kth-273523DiVA, id: diva2:1431096
Note

QC 20200519

Available from: 2020-05-19 Created: 2020-05-19 Last updated: 2020-05-19Bibliographically approved

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Staf, HjalmarLarsson, Per-Lennart

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