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Machinability of inconel 718 during turning: Cutting force model considering tool wear, influence on surface integrity

Type
Articles dans des revues avec comité de lecture
Auteur
TOUBHANS, Bastien
300457 SAFRAN Group
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
FROMENTIN, Guillaume
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
VIPREY, Fabien
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
KARAOUNI, Habib
300457 SAFRAN Group
DORLIN, Théo
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]
300457 SAFRAN Group

URI
http://hdl.handle.net/10985/18996
DOI
10.1016/j.jmatprotec.2020.116809
Date
2020
Journal
Journal of Materials Processing Technology

Résumé

Machining accuracy can be compromised by elastic workpiece deformation and subsurface residual stress introduction during cutting. In order to anticipate the impact of cutting forces and surface integrity evolutions on finished surface and its geometrical errors, it is necessary to better understand the influence of cutting conditions and tool wear. In this study, machinability of Inconel 718 using a round carbide tool in finish turning conditions is assessed. Cutting forces evolution during tool life are analysed and accompanied by advanced investigations of cutting phenomena. An original mechanistic cutting force model is developed, identified and tested. It includes the effect of tool wear over time in its local formulation. This model allows predicting cutting forces evolution along tool pass for a wide range of finishing cutting conditions. Furthermore, a thorough analysis of residual stress profiles at different tool wear levels is led. It features quantitative results for fresh and worn tools. A study on the influence of cutting parameters and tool wear on residual stress profiles in the machining affected zone is highlighted.

Fichier(s) constituant cette publication

Nom:
LABOMAP_JMPT_2020_TOUBHANS.pdf
Taille:
3.415Mo
Format:
PDF
Fin d'embargo:
2020-12-20
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Documents liés

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  • Study of phenomena responsible for part distortions when turning thin Inconel 718 workpieces 
    TOUBHANS, Bastien; VIPREY, Fabien; FROMENTIN, Guillaume; KARAOUNI, Habib; DORLIN, Théo (Elsevier, 2020)
    Machining thin workpieces is a challenging task as geometrical errors may result from the combination of several phenomena. Among these, elastic workpiece deformation and machining induced residual stresses may be predominant ...
  • Prediction of form error during face turning on flexible Inconel 718 workpiece 
    TOUBHANS, Bastien; VIPREY, Fabien; FROMENTIN, Guillaume; KARAOUNI, Habib (Elsevier BV, 2019)
    Complex workpieces may contain thin sections that are more likely to deform during machining due to cutting forces. It may result in form errors on the final product. Then, it is important to anticipate such defects when ...
  • Investigations on the flank wear and modelling of the contact radius effect in turning of Ti6Al4V titanium alloy 
    BONO, Aurélie; DORLIN, Théo; COSTES, Jean-Philippe; FROMENTIN, Guillaume; KARAOUNI, Habib (Elsevier, 2016)
    Machining of difficult-to-cut materials like Ti6Al4V titanium alloy leads to significant flank wear on the cutting tool. In order to ensure the respect of final part specifications, flank wear has to be controlled. In ...
  • Phenomenological study of chip flow/formation and unified cutting force modelling during Ti6Al4V alloy turning operations 
    CHERIF, Iheb; DORLIN, Théo; MARCON, Bertrand; FROMENTIN, Guillaume; KARAOUNI, Habib (Elsevier, 2018)
    Mechanistic approach for prediction of cutting forces are showing limits when it comes to enhance the cutting force modelling for specific applications of high-value added and thin parts, which are made of difficult-to-cut ...
  • Mechanistic cutting force model including the stress state induced by the chip flow contribution for cylindrical turning on Ti6Al4V alloy with two different nose radii 
    DORLIN, Théo; FROMENTIN, Guillaume; COSTES, Jean-Philippe; KARAOUNI, Habib (2016)
    Force modelling is a major research topic in machining. Several approaches are used to face with the different needs. Mechanistic models appear to be an easier and rapid way for computing cutting forces; nevertheless they ...

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