A New Behavior Model for Better Understanding of Titanium alloys Ti-6Al-4V Chip Formation in Orthogonal Cutting

Abstract : The behavior of Ti-6Al-4V has been studied via shear tests, using hat shaped specimen, on a servo-hydraulic Gleeble 3800 testing machine under the strain rate up to 10(3)s(-1) and temperature up to 900 degrees C. A new thermo-visco-plastic material law is proposed, based on a modified Johnson-Cook formulation. An inverse identification method based on Finite Element (FE) is established and detailed in order to determine the constitutive law's parameters. The new model is implemented in a 3D finite element model to study the chip formation in orthogonal cutting configuration. The numerical simulations were performed on FE software Impetus Afea (R) able to solve dynamic non-linear problem.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-01609103
Contributor : Imt Mines Albi Ecole Nationale Supérieure Des Mines d'Albi-Carmaux <>
Submitted on : Tuesday, October 3, 2017 - 10:59:52 AM
Last modification on : Friday, January 10, 2020 - 9:09:44 PM

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Mahmoud Harzallah, Thomas Pottier, Johanna Senatore, Michel Mousseigne, G. Germain, et al.. A New Behavior Model for Better Understanding of Titanium alloys Ti-6Al-4V Chip Formation in Orthogonal Cutting. ESAFORM 2016 - 19th International ESAFORM Conference on Material Forming, Apr 2016, Nantes, France. art. 080015 - 6 p., ⟨10.1063/1.4963490⟩. ⟨hal-01609103⟩

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