Study of Localized Thinning of Copper Tube Hydroforming in Square Section Die: Effect of Friction Conditions

Abir Abdelkefi; Nathalie Boudeau; Pierrick Malecot; Noamen Guermazi; Gérard Michel

doi:10.4028/www.scientific.net/KEM.651-653.65

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Study of Localized Thinning of Copper Tube Hydroforming in Square Section Die: Effect of Friction Conditions
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 651-653Study of Localized Thinning of Copper Tube...

Study of Localized Thinning of Copper Tube Hydroforming in Square Section Die: Effect of Friction Conditions

Abstract:

The friction conditions are responsible of the thickness distribution in a part realized by tube hydroforming. Then it is essential to have a good evaluation of the friction coefficient for running predictive finite element simulations. The tube expansion in a square die is one of tests proposed for the friction evaluation. In the literature, several analytical models have been developed for this specific test. The present paper concentrates on one of this model and results obtained from the analytical analysis, FE simulations and experiments are compared. The repartition of the thickness over the shaped tube and its evolution during the process are studied. The tendencies are in agreement but some complementary evaluations are proposed for using the proposed approach for the evaluation of the friction coefficient with the analytical model.

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Periodical:

Key Engineering Materials (Volumes 651-653)

Pages:

65-70

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.651-653.65

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Online since:

July 2015

Authors:

Abir Abdelkefi, Nathalie Boudeau*, Pierrick Malecot, Noamen Guermazi, Gérard Michel

Keywords:

Friction Coefficient, Modelling, Tube Hydroforming

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