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Analyse de la sensibilité et des domaines de validité des modélisations analytiques de la coupe.

Communication avec acte
Auteur
YOUSFI, Wiliam
LAHEURTE, Raynald
DARNIS, Philippe
CAHUC, Olivier
ccCALAMAZ, Madalina

URI
http://hdl.handle.net/10985/7656
Date
2013

Résumé

The determination of all the 6 mechanical actions of cutting processes is very interesting for modeling of milling, turning and drilling in order to optimize the geometric parameters, kinematic, improve the quality of the obtained surface and the tool life. Analytical or semi-analytical models of cutting often give an order of the mechanical action magnitude in the cutting tool tip. The interest of these models is linked to the rapidity of the results obtaining and to the moderate cost compared with experimental approach In the literature there are several main analytical models (Merchant model – 1945, thermomechanical Oxley models -1980, Gilormini -1982 and Dargnat -2006). They are analyzed in this work, paying particular attention to their validity domains. Thus, the effects of variation of each parameter on the geometric and kinematic results obtained by each of the models are presented and compared, taking into account the specific modeling assumptions. This study will be conducted in orthogonal cutting configuration, because of its simplicity for modeling the cutting process, this configuration assumes that the cutting edge is perpendicular to the cutting speed and feed directions.

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  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

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  • Kinematic fields measurement during Ti-6Al-4V chip formation using new high-speed imaging system 
    Article dans une revue avec comité de lecture
    ZOUABI, Haythem; ccCALAMAZ, Madalina; WAGNER, Vincent; CAHUC, Olivier; DESSEIN, Gilles (Springer Science and Business Media LLC, 2023-01)
    Orthogonal cutting on Ti-6Al-4V produces segmented chips which results from localized deformation within the Primary Shear Zone (PSZ). For in situ visualization of the material flow during Ti-6Al-4V chip formation, a new ...
  • Cutting Forces Prediction in the Dry Slotting of Aluminium Stacks 
    Article dans une revue avec comité de lecture
    SALGUERO, Jorge; ccCALAMAZ, Madalina; BATISTA, Moises; ccGIROT, Franck; MARCOS, Mariano (Trans Tech Publications Inc, 2014)
    Cutting forces are one of the inherent phenomena and a very significant indicator of the metal cutting process. The work presented in this paper is an investigation of the prediction of these parameters in slotting processes ...
  • Cutting Forces Parametric Model for the Dry High Speed Contour Milling of Aerospace Aluminium Alloys 
    Article dans une revue avec comité de lecture
    SALGUERO, Jorge; BATISTA, Moises; ccCALAMAZ, Madalina; ccGIROT, Franck; MARCOS, Mariano (Elsevier, 2013)
    Cutting forces is one of the most important outputs in material removal machining processes. Their values depend on a large number of parameters, such as the cutting tool material and geometry, the workpiece material or ...
  • Strain field measurement in orthogonal machining of a titanium alloy 
    Article dans une revue avec comité de lecture
    ccCALAMAZ, Madalina; ccCOUPARD, Dominique; ccGIROT, Franck (Trans Tech Publications, 2012)
    Improving the cutting processes by optimizing operating parameters necessarily involves understanding the thermo-mechanical mechanisms generated during chip formation. For this, numerical simulations are used to obtain ...
  • A new material model for 2D numerical simulation of serrated chip formation when machining titanium alloy Ti-6Al-4V 
    Article dans une revue avec comité de lecture
    ccCALAMAZ, Madalina; ccCOUPARD, Dominique; ccGIROT, Franck (Elsevier, 2008)
    A new material constitutive law is implemented in a 2D finite element model to analyse the chip formation and shear localisation when machining titanium alloys. The numerical simulations use a commercial finite element ...

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