Control of a multi-degree of freedom worktool for vibrations assisted forging

Christophe Giraud-Audine (1) , Thanh-Hung Nguyen (1) , Michel Amberg (1) , Betty Lemaire-Semail (1) , Gabriel Abba (2) , Régis Bigot (2)

1 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697
2 LCFC - Laboratoire de Conception Fabrication Commande

This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds. Due to the minute displacements of the actuators, flexible hinges are used in a special arrangement in order realize the specified movements and to ensure controllability. The experimental results confirm the approach.

Mots clés: Piezoelectric; Forging process; Vibrations; Control

Domaines: Automatique / Robotique; Energie électrique; Génie des procédés

Christophe Giraud-Audine, Thanh-Hung Nguyen, Michel Amberg, Betty Lemaire-Semail, Gabriel Abba, et al.. Control of a multi-degree of freedom worktool for vibrations assisted forging. IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2014, Jul 2014, Besançon, France. pp.812-817, ⟨10.1109/AIM.2014.6878179⟩. ⟨hal-01109559⟩