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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Morel, Anne
Laboratoire Angevin de Mécanique, Procédés et InnovAtion
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2016Tool wear and cutting forces under cryogenic machining of titanium alloy (Ti17)citations
- 2015Influence of high pressure coolant assistance on the machinability of the titanium alloy Ti555-3citations
- 2015Numerical and Experimental Approach in Assisted Cryogenic Machiningcitations
- 2014Sub-millimeter measurement of finite strains at cutting tool tip vicinitycitations
- 2013Identification de lois de comportement représentatives des conditions d'usinage pour des alliages de titane à différentes teneurs alpha/beta
- 2013Identification of material constitutive laws representative of machining conditions for two titanium alloys: Ti6Al4V and Ti555-3citations
- 2013The influence of laser assistance on the machinability of the titanium alloy Ti555-3citations
- 2012A new approach to model the fatigue anisotropy due to non-metallic inclusions in forged steelscitations
- 2011A Biaxial Fatigue Specimen for Uniaxial Loadingcitations
- 2011Modelling the role of non metallic inclusions on the anisotropic fatigue behaviour of forged steelcitations
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document
Identification de lois de comportement représentatives des conditions d'usinage pour des alliages de titane à différentes teneurs alpha/beta
Abstract
Determining a material constitutive law which is representative of the extreme conditions found in the cutting zone during machining operations is a very challenging problem. In this study, dynamic shear tests, which reproduce, as faithfully as possible, these conditions in terms of strain, strain rate and temperature, have been developed using hat-shaped specimens. The objective was to identify the parameters of a Johnson-Cook material behaviour model by an inverse method for three titanium alloys: Ti6Al4V, Ti555-3 and Ti17. In order to be as representative as possible of the experimental results, the parameters of the Johnson-Cook model were not considered to be constant over the total range of the strain rate and temperature investigated. This reflects a change in the mechanisms governing the deformation. The shear zones observed in hat-shaped specimens were analysed and compared to those produced in chips during conventional machining for both materials. It is concluded that, in the Ti555-3 alloy, the proportion of alpha-phase greatly reduces in high strain-rate zones.