Identification of influent factors on surface integrity in nickel-base superalloy drilling

Andreï Popa (1) , Vincent Dutilh (2) , Maher Baili (1) , Gilles Dessein (1) , Géraldine Perrin (2)

1 LGP - Laboratoire Génie de Production
2 Turbomeca

For the critical rotating components in aeronautical industry, the metallurgical quality achieved after machining conditions could determine their mechanical behaviour in fatigue. To guarantee this quality, the tools, materials and cutting conditions are frozen during the validation process by a cutup part following by an acceptable surface integrity. Even with the fixed parameters, perturbations can occur during the process and may have a direct impact over the metallurgical quality through the apparition of anomalies, which could reduce the calculated fatigue life. The aim of this study is to define a Process Monitoring technique able to detect the thickness affected by the machining taking into account the flank wear effect.

Mots clés: Machining of nickel base alloy; Process monitoring; Pearson; Statistical methods; Drilling

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

Andreï Popa, Vincent Dutilh, Maher Baili, Gilles Dessein, Géraldine Perrin. Identification of influent factors on surface integrity in nickel-base superalloy drilling. 19th International Conference on Manufacturing Systems - ICMaS 2010, Nov 2010, Bucharest, Romania. pp. 231-236. ⟨hal-01005534⟩