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Simulation of high velocity compaction of powder in a rubber mould with characterization of silicone rubber and titanium powder using a modified split Hopkinson set-up
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-7514-0513
Luleå tekniska universitet.
Swedish Ceramic Institute.
Nobel Biocare AB.
2005 (English)In: Powder Technology, ISSN 0032-5910, E-ISSN 1873-328X, Vol. 154, no 1, p. 33-42Article in journal (Refereed) Published
Abstract [en]

The paper introduces a method for characterization of silicone rubber and titanium powder in high velocity compaction using the split Hopkinson set-up. The impact test data has been used to estimate parameters in constitutive models for rubber and powder. A finite element study has been performed with different geometrical design of the high velocity compaction of titanium powder against an aluminium mandrel using a rubber mould as pressing medium. One goal of this study is to investigate if and how the manufacturing method can be applied for making dental copings. A conclusion of the experimental work is that it is possible to characterize rubber material and powder material for high velocity compaction of metal powder by the use of a modified split Hopkinson pressure bar set-up. The numerical simulation shows qualitatively good agreement with the experience from practical tests. In conclusion, the work shows the possibility to numerically study the geometric design and to optimize the densification behaviour of a complex high velocity compaction process.

Place, publisher, year, edition, pages
2005. Vol. 154, no 1, p. 33-42
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-8532DOI: 10.1016/j.powtec.2005.01.026ISI: 000230052800005Scopus ID: 2-s2.0-20444457603Local ID: 70ae8c20-c357-11db-9ea3-000ea68e967bOAI: oai:DiVA.org:ltu-8532DiVA, id: diva2:981470
Note
Validerad; 2005; 20070110 (inah)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Häggblad, Hans-åke

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