Integration of dynamic behaviour variations in the stability lobes method: 3D lobes construction and application to thin-walled structure milling

Vincent Thévenot (1) , Lionel Arnaud (2) , Gilles Dessein (2) , Gilles Cazenave-Larroche (1)

1 SAFRAN [Paris]
2 LGP - Laboratoire Génie de Production

Vibratory problems occurring during peripheral milling of thin-walled structures affect the quality of the fin- ished part and, to a lesser extent, the tool life and the spindle life. Therefore, it is necessary to be able to limit these problems with a suitable choice of cutting conditions. The stability lobes theory makes it possible to choose the appropriate cutting con- ditions according to the dynamical behaviour of the tool or the part. We introduce the dynamical behaviour variation of the part with respect to the tool position in order to determine optimal cutting conditions during the machining process. This general- ization of the classical lobes diagram leads us to a 3D lobes diagram construction. These computed results are compared with real experiments of down-milling of thin-walled structures.

Mots clés: 3D stability lobes; Dynamic behaviour; Peripheral milling; Thin walled structures

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

Vincent Thévenot, Lionel Arnaud, Gilles Dessein, Gilles Cazenave-Larroche. Integration of dynamic behaviour variations in the stability lobes method: 3D lobes construction and application to thin-walled structure milling. International Journal of Advanced Manufacturing Technology, 2006, vol. 27, pp. 638-644. ⟨10.1007/s00170-004-2241-1⟩. ⟨hal-00800292⟩