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On the turning modeling and simulation: 2D and 3D FEMapproaches

Published online by Cambridge University Press:  08 August 2014

M. Asad ,
T. Mabrouki ,
H. Ijaz ,
M. Aurangzeb Khan  and
W. Saleem
M. Asad*
Affiliation:
Department of Industrial & Mechanical Engineering, School of Engineering, University of Management & Technology, 54770 Lahore, Pakistan
T. Mabrouki
Affiliation:
Université de Lyon, CNRS, INSA-Lyon, LaMCoS, UMR 5259, 69621 Lyon, France
H. Ijaz
Affiliation:
Department of Industrial & Mechanical Engineering, School of Engineering, University of Management & Technology, 54770 Lahore, Pakistan
M. Aurangzeb Khan
Affiliation:
Department of Industrial & Mechanical Engineering, School of Engineering, University of Management & Technology, 54770 Lahore, Pakistan
W. Saleem
Affiliation:
Department of Industrial & Mechanical Engineering, School of Engineering, University of Management & Technology, 54770 Lahore, Pakistan
*
a Corresponding author:masadakhtar@yahoo.com
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Abstract

For qualitative prediction of chip morphology and quantitative prediction of burr size,2D and 3D finite element (FE) based turning models have been developed in this paper.Coupled temperature-displacement machining simulations exploiting the capabilities ofAbaqus® with a particular industrial turning insert and a newly proposed geometricalversion of this insert have been performed. Limitations of 2D models in defining the chipmorphologies and surface topologies have been discussed. The phenomenological findings onthe Poisson burr (Side burr) formation using 3D cutting models have been highlighted.Bespoke geometry of the turning insert has been found helpful in reducing the Poisson burrformation, as it reduces the contact pressures at the edges of tool rake face-workpieceinterface. Lower contact pressures serve to decrease the material flow towards workpieceedges (out of plane deformation). In contrast, higher contact pressures at tool rakeface-workpiece interface lead to more material flow towards workpiece edges resulting inlonger burr. Simulation results of chip morphologies and cutting forces for turning analuminum alloy A2024-T351 have been compared with the experimental ones. Finally, it hasbeen concluded that the newly proposed geometry of the insert not only decreases the burrbut also helpful in lessening the magnitude of tool-workpiece initial impact.

Keywords

Orthogonal turningFE modelPoisson burr formationchip morphologyA2024-T351
Type
Research Article
Information
Mechanics & Industry , Volume 15 , Issue 5 , 2014 , pp. 427 - 434
Copyright
© AFM, EDP Sciences 2014

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