Investigation of the Evolution of Modal Behavior of HSM Spindle at High Speed

Clément Rabréau (1) , Mathieu Ritou (1, 2) , Sébastien Le Loch (1, 2) , Benoît Furet (1, 2)

1 LS2N - équipe RoMas - Robots and Machines for Manufacturing, Society and Services
2 IUT Nantes - Institut Universitaire de Technologie - Nantes

The cutting stability and the lifetime of High Speed Machining spindles highly depend on its modal behavior. A specific electromagnetic excitation device is used to measure the Frequency Response Function of the spindle at high speeds. The evolution with speed of the eigenfrequencies and of the radial stiffness is analyzed. A numerical model is developed to obtain the associated modes shapes; since they cannot be measured experimentally. The simulations, which are in good agreement with the experiments, enable an understanding of the evolutions of the spindle dynamic, and notably of the evolution of modal coupling at high speed.

Mots clés: Spindle; Dynamics; Simulation

Domaines: Génie mécanique [physics.class-ph]

Clément Rabréau, Mathieu Ritou, Sébastien Le Loch, Benoît Furet. Investigation of the Evolution of Modal Behavior of HSM Spindle at High Speed. 16th CIRP Conference on Modelling of Machining Operations, Jun 2017, Cluny, France. pp.405-410, ⟨10.1016/j.procir.2017.03.243⟩. ⟨hal-01819025⟩