Thermo-Mechanical Modeling of Distortions Promoted during Cooling of Ti-6Al-4V Part Produced by Superplastic Forming - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2016

Thermo-Mechanical Modeling of Distortions Promoted during Cooling of Ti-6Al-4V Part Produced by Superplastic Forming

Maxime Rollin
  • Fonction : Auteur
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Vincent Velay
Luc Penazzi
Thomas Pottier
Thierry Sentenac
Alain Dupuy
  • Fonction : Auteur
Gaël Khelifati
  • Fonction : Auteur

Résumé

In AIRBUS, most of the complex shaped titanium fairing parts of pylon and air inlets are produced by superplastic forming (SPF). These parts are cooled down after forming to ease their extraction and increase the production rate, but AIRBUS wastes a lot of time to go back over the geometric defects generated by the cooling step. This paper investigates the simulations of the SPF, cooling and clipping of a part operations on Abaqus ® Finite element software. The different steps of the global process impact the final distortions. SPF impacts the thickness and the microstructure/behavior of material, cooling impacts also the microstructure/behavior of material and promotes distortions through thermal stresses and finally, clipping relaxes the residual stresses of the cut part. An elastic-viscoplastic power law is used to model material behavior during SPF and a temperature dependent elastic perfectly plastic model for the cooling and clipping operations.
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Dates et versions

hal-01633694 , version 1 (06-06-2018)

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Maxime Rollin, Vincent Velay, Luc Penazzi, Thomas Pottier, Thierry Sentenac, et al.. Thermo-Mechanical Modeling of Distortions Promoted during Cooling of Ti-6Al-4V Part Produced by Superplastic Forming. ICSAM 2015 - 12th International Conference on Superplasticity in Advanced Materials, Sep 2015, Tokyo, Japan. p. 196 - 201, ⟨10.4028/www.scientific.net/MSF.838-839.196⟩. ⟨hal-01633694⟩
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