dc.contributor.authorGhassemali, Ehsan
dc.contributor.authorTan, Ming-Jen
dc.contributor.authorWah, Chua Beng
dc.contributor.authorLim, Samuel C.V.
dc.contributor.authorJarfors, Anders E.W.
dc.date.accessioned2015-02-27T07:09:24Z
dc.date.available2015-02-27T07:09:24Z
dc.date.copyright2014en_US
dc.date.issued2014
dc.identifier.citationGhassemali, E., Tan, M.-J., Wah, C. B., Lim, S. C. V., & Jarfors, A. E. W. (2014). Friction effects during open-die micro-forging/extrusion processes : an upper bound approach. Procedia engineering, 81, 1915-1920.en_US
dc.identifier.urihttp://hdl.handle.net/10220/25139
dc.description.abstractIn microforming processes it is preferred to not to use lubricants, due to their complex behavior in micro-scale. Nevertheless, using lubricants could increase the life time and decrease the required forming load. Thus, it is necessary to study and develop an analytical solution for different lubrication conditions in microforming processes. A previously studied upper bound model was modified in this study for various lubrication conditions in an open-die micro-forging/extrusion process. Two approaches were chosen for identifying the friction factor in the model: (i) global friction factor, (ii) localized friction factor. Comparison of the modeling results with the experimental showed the reliability of the second approach, providing a better fit.en_US
dc.format.extent6 p.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesProcedia Engineering*
dc.rights© 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).en_US
dc.subjectDRNTU::Engineering::Aeronautical engineering::Materials of construction
dc.titleFriction effects during open-die micro-forging/extrusion processes : an upper bound approachen_US
dc.typeConference Paper
dc.contributor.conferenceInternational Conference on Technology of Plasticity, ICTP (11th : 2014)en_US
dc.contributor.researchSingapore Institute of Manufacturing Technologyen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.proeng.2014.10.256
dc.description.versionPublished versionen_US


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