Impact of disturbed drilling conditions on the surface integrity of a Nickel-base superalloy

Vincent Dutilh (1, 2) , Andreï Popa (1) , Gilles Dessein (1) , Joël Alexis (1) , Géraldine Perrin (2)

1 LGP - Laboratoire Génie de Production
2 Turbomeca

Manufacturing critical parts for aerospace industry requires an important validation process to guarantee the quality of the produced components, and thus their fatigue life. Even with the best cutting conditions, disturbances can occur during the process and may have a direct impact on metallurgical quality. Through an experimental approach, this work presents the impact, during machining, of a lubricant interruption on the surface integrity and on the Process Monitoring signals. Finally a correlation between the thickness of the thermo-mechanically affected layer and the cutting power is made.

Mots clés: Process Monitoring; Surface integrity; Micro-Hardness; Drilling; Udimet 720

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

Vincent Dutilh, Andreï Popa, Gilles Dessein, Joël Alexis, Géraldine Perrin. Impact of disturbed drilling conditions on the surface integrity of a Nickel-base superalloy. CIRP ICME '10 - 7th CIRP International Conference on INTELLIGENT COMPUTATION IN MANUFACTURING ENGINEERING, Jun 2010, Capri, Italy. ⟨hal-00944562⟩