CUTTING MODELS in drilling: duality BETWEEN experimental and theoretical MODELS

 

Philippe DARNIS, Olivier CAHUC

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Abstract: Drilling constitutes a strategic operation in aeronautics. It is involved during assembly operations for which hundreds of thousands of holes are drilled on planes. The modeling of this operation is necessary in order to determine the thermomechanical parameters related to the machining conditions. It is also necessary to predict the behavior of the drills and to link the geometrical and kinematics parameters to the quality of the drilled holes. In this article the juxtaposition of two approaches of the process is presented: experimental and theoretical approach. These two approaches are complementary. Experimental approach allows linking the geometrical and kinematics parameters to the qualitative parameters of the hole. Theoretical approach integrates the thermal and mechanical laws to model the cutting process.

 

Key words: drilling, model, experimental, analytical, geometrical description, cutting forces.

 

Authors:

PhD, Philippe. Darnis, Assoc. Prof., University of Bordeaux, EA 496, Laboratoire de Génie Mécanique et Matériaux de Bordeaux, Bordeaux, F33000, France

E-mail: philippe.darnis@u-bordeaux1.fr

PhD, Olivier CAHUC, Assoc, Prof. HDR, Université Bordeaux 1, Laboratoire de Mécanique Physique UMR CNRS 5469,

E-mail: olivier.cahuc@u-bordeaux1.fr