Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmatprotec.2007.04.137
DC FieldValue
dc.titleInvestigations of tool edge radius effect in micromachining: A FEM simulation approach
dc.contributor.authorWoon, K.S.
dc.contributor.authorRahman, M.
dc.contributor.authorFang, F.Z.
dc.contributor.authorNeo, K.S.
dc.contributor.authorLiu, K.
dc.date.accessioned2014-06-17T06:25:21Z
dc.date.available2014-06-17T06:25:21Z
dc.date.issued2008-01-01
dc.identifier.citationWoon, K.S., Rahman, M., Fang, F.Z., Neo, K.S., Liu, K. (2008-01-01). Investigations of tool edge radius effect in micromachining: A FEM simulation approach. Journal of Materials Processing Technology 195 (1-3) : 204-211. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmatprotec.2007.04.137
dc.identifier.issn09240136
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/60617
dc.description.abstractPredictive models that are developed based on the assumption of perfectly sharp cutting tools yield reasonable accurate results for conventional machining. But the same assumption is not valid for micromachining as the undeformed chip thickness a in microscale approaches the tool edge radius r of several microns. In this study, finite element analysis (FEA) of micromachining using the arbitrary Lagrangian-Eulerian (ALE) method showed that chip is formed through material extrusion under a critical a/r < 1. The changes in chip formation behavior are driven by intense deviatoric and hydrostatic stresses that are highly localized around the deformation zone. The onset of such chip formation mechanism is signified with a constant changing negative effective rake angle that becomes stable in a later stage when chip formation reaches a stable tool-chip contact length. © 2007 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jmatprotec.2007.04.137
dc.sourceScopus
dc.subjectEffective rake angle
dc.subjectFinite element analysis
dc.subjectMicromachining
dc.subjectTool edge radius
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.jmatprotec.2007.04.137
dc.description.sourcetitleJournal of Materials Processing Technology
dc.description.volume195
dc.description.issue1-3
dc.description.page204-211
dc.description.codenJMPTE
dc.identifier.isiut000252230900026
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