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Title
Influence of Coulomb’s Friction Coefficient in Finite Element Modeling of Orthogonal Cutting of Ti6Al4V
Author
Author (from another institution)
Research Group
Mecanizado de alto rendimiento
xmlui.dri2xhtml.METS-1.0.item-contributorOtherinstitution
https://ror.org/02qnnz951
Version
http://purl.org/coar/version/c_970fb48d4fbd8a85
Rights
© 2022 The Authors
Access
http://purl.org/coar/access_right/c_abf2
URI
https://hdl.handle.net/20.500.11984/5890
Publisher’s version
Published at
Key Engineering Materials  Vol. 926. Pp. 1619–1628. July, 2022
xmlui.dri2xhtml.METS-1.0.item-publicationfirstpage
1619
xmlui.dri2xhtml.METS-1.0.item-publicationlastpage
1628
Publisher
Trans Tech Publications
Keywords
Ti6Al4V
Orthogonal cutting
ALE Model
Friction ... [+]
Ti6Al4V
Orthogonal cutting
ALE Model
Friction
Coulomb
forces
Chip Morphologies [-]
Abstract
The reliability of the pertinent parameters set of Johnson-Cook constitutive model is highly linked with the friction condition at the tool-chip-workpiece interface. In the present work, a study on th ... [+]
The reliability of the pertinent parameters set of Johnson-Cook constitutive model is highly linked with the friction condition at the tool-chip-workpiece interface. In the present work, a study on the influence of Coulomb’s friction coefficient on the observables such as forces, chip thickness and chip curvature by FE simulation of orthogonal cutting of Ti6Al4V alloy has been carried out. A FE model with an Arbitrary Lagrangian-Eulerian (ALE) approach is employed to simulate the cutting process for different cutting conditions. The simulated results, for a wide range of friction conditions, are analyzed and compared with experimental results. The analysis show that the Coulomb’s friction coefficient has a direct link with the observables. The paper reveals that for accurate prediction of observables an optimized value of the coefficient of friction in correlation with the parameters values of the constitutive model is imperative. [-]
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