Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle
In this paper, orthogonal cutting finite elements models are built for the investigation of the impact of large negative rake angles on the friction coefficient in the tool-chip interface in machining. The simulation results give an insight on the mechanism of chip formation in processes with large...
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doaj-33f686268cac487884ab96ae968fb3842020-11-25T01:52:37ZengUniversity of KragujevacTribology in Industry0354-89962217-79652016-06-01382214220Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake AngleA.P. Markopoulos0N.E. Karkalos1N.M. Vaxevanidis2D.E. Manolakos3Section of Manufacturing Technology, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechneiou 9, 15780, Athens, GreeceSection of Manufacturing Technology, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechneiou 9, 15780, Athens, GreeceDepartment of Mechanical Engineering Educators, School of Pedagogical and Technological Education (ASPETE), ASPETE Campus, GR 141 21, N. Heraklion, GreeceSection of Manufacturing Technology, School of Mechanical Engineering, National Technical University of Athens, Heroon Polytechneiou 9, 15780, Athens, GreeceIn this paper, orthogonal cutting finite elements models are built for the investigation of the impact of large negative rake angles on the friction coefficient in the tool-chip interface in machining. The simulation results give an insight on the mechanism of chip formation in processes with large negative active rake angle, such as machining with chamfered tools, grinding and micromachining. For the present analysis, cutting conditions resembling the qualitative and quantitative characteristics of the aforementioned processes were selected. More specifically, tool rake angles varying from -10o to -55o and Coulomb friction with constant friction coefficient were considered. The results indicate that friction coefficient is greatly affected by the negative tool rake angle, exhibiting values well above 1 for the high extreme of the examined rake angle spectrum.http://www.tribology.fink.rs/journals/2016/2016-2/8.pdfMachiningFinite elementsSimulationLarge negative rake angleFriction coefficient |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A.P. Markopoulos N.E. Karkalos N.M. Vaxevanidis D.E. Manolakos |
spellingShingle |
A.P. Markopoulos N.E. Karkalos N.M. Vaxevanidis D.E. Manolakos Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle Tribology in Industry Machining Finite elements Simulation Large negative rake angle Friction coefficient |
author_facet |
A.P. Markopoulos N.E. Karkalos N.M. Vaxevanidis D.E. Manolakos |
author_sort |
A.P. Markopoulos |
title |
Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle |
title_short |
Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle |
title_full |
Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle |
title_fullStr |
Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle |
title_full_unstemmed |
Friction in Orthogonal Cutting Finite Elements Models with Large Negative Rake Angle |
title_sort |
friction in orthogonal cutting finite elements models with large negative rake angle |
publisher |
University of Kragujevac |
series |
Tribology in Industry |
issn |
0354-8996 2217-7965 |
publishDate |
2016-06-01 |
description |
In this paper, orthogonal cutting finite elements models are built for the investigation of the impact of large negative rake angles on the friction coefficient in the tool-chip interface in machining. The simulation results give an insight on the mechanism of chip formation in processes with large negative active rake angle, such as machining with chamfered tools, grinding and micromachining. For the present analysis, cutting conditions resembling the qualitative and quantitative characteristics of the aforementioned processes were selected. More specifically, tool rake angles varying from -10o to -55o and Coulomb friction with constant friction coefficient were considered. The results indicate that friction coefficient is greatly affected by the negative tool rake angle, exhibiting values well above 1 for the high extreme of the examined rake angle spectrum. |
topic |
Machining Finite elements Simulation Large negative rake angle Friction coefficient |
url |
http://www.tribology.fink.rs/journals/2016/2016-2/8.pdf |
work_keys_str_mv |
AT apmarkopoulos frictioninorthogonalcuttingfiniteelementsmodelswithlargenegativerakeangle AT nekarkalos frictioninorthogonalcuttingfiniteelementsmodelswithlargenegativerakeangle AT nmvaxevanidis frictioninorthogonalcuttingfiniteelementsmodelswithlargenegativerakeangle AT demanolakos frictioninorthogonalcuttingfiniteelementsmodelswithlargenegativerakeangle |
_version_ |
1724994146771402752 |