Numerical modelling of clip manufacturing: focus on the heat treatment

Richard Spataro (1) , François Bay (2) , Yvan Chastel (2) , Florian Herrbach (2)

1 CETIM
2 CEMEF - Centre de Mise en Forme des Matériaux

Nowadays, manufacturers of clips have to face dimensional problems of their products which are heat treated. By using the numerical approach, companies want to understand reasons of these deformations. Thanks to the modeling of the shaping operation, we obtain the shape and residual stresses of the clip ready for heat treatment. After to have identify thermomecanic parameters used by FORGE2005®TTT on a specific test bench called TABOO, we study the quenching and heating operations. We can so notice that geometrical evolutions are mainly due to residual stresses of bending.

Mots clés: distortions; quenching; heat treatment; residual stresses; clip; FORGE®2005

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Richard Spataro, François Bay, Yvan Chastel, Florian Herrbach. Numerical modelling of clip manufacturing: focus on the heat treatment. 11th ESAFORM Conference on Material Forming, Apr 2008, Lyon, France. pp.Pages 1051-1054, ⟨10.1007/s12289-008-0199-5⟩. ⟨hal-00510357⟩