The Effect of an Electromagnetic Peening Process on Mumetal Properties

Aurélien Chazottes-Leconte (1) , Emmanuel Sonde (2) , Loup Plantevin (1) , Charles Joubert (1) , Thibaut Chaise (2) , Laurent Morel (1) , Daniel Nelias (2) , Hubert Razik (3)

1 EE - Ampère, Département Energie Electrique
2 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
3 MIS - Ampère, Département Méthodes pour l'Ingénierie des Systèmes

Peening processes are widely used in the industries to enhance the performance of the most solicited parts of mechanical pieces. Actual processes, like shot peening and low plasticity burnishing, are quite limited to a small depth of treatment circa 1 mm at maximum. A new process is developed based on pulsed electromagnetic fields. This method allows a better depth of treatment up to 5 mm and it can be easily monitored. A prototype was developed using a pulse current generator and specifically designed inductor. This prototype was used on mumetal for the preliminary tests. Indeed, its maximal permeability and coercivity are highly impacted by the presence of stresses. Using specifics sensors, some changes occur after treatment on mumetal samples and can be observed.

Mots clés: Pulse current generator; Magnetic properties; Electromagnetic Peening processes; Magnetic materials; Peening process; Mumetal

Domaines: Energie électrique; Mécanique des matériaux [physics.class-ph]

Aurélien Chazottes-Leconte, Emmanuel Sonde, Loup Plantevin, Charles Joubert, Thibaut Chaise, et al.. The Effect of an Electromagnetic Peening Process on Mumetal Properties. 2018 IEEE ICIT, Feb 2018, Lyon, France. ⟨10.1109/ICIT.2018.8352290⟩. ⟨hal-01800374⟩