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Communication Dans Un Congrès Année : 2004

Design of SPF dies based on advanced material behaviour models

Résumé

Numerical simulation was performed on an axi-symmetric metallic die during a whole fife cycle. It was shown that most important stresses are generated by the thermal gradients during heating up and repeated die removal from the press furnace and also by the clamping pressure during forming. The forming itself causes non dimensioning stresses. Creep relaxation during forming induces plastic deformation and distortion of mould after cooling down. To increase simulation relevance, new behaviour models are investigated for three classes of materials candidate for SPF dies: heat resistant cast steels, fibre reinforced refractory concretes and low cost monolithic ceramics.
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Dates et versions

hal-01714941 , version 1 (22-02-2018)

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Gérard Bernhart, F Nazaret, A Martinier, C Gao, D Garriga-Majo, et al.. Design of SPF dies based on advanced material behaviour models. 8th International Conference on Superplasticity in Advanced Materials, Mar 2003, Oxford, United Kingdom. pp.123-130, ⟨10.4028/www.scientific.net/MSF.447-448.123⟩. ⟨hal-01714941⟩
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