Développement d’un modèle généralisé d’efforts de coupe pour l’usinage de l'alliage de titane Ti6Al4V. Application aux techniques de tournage et fraisage

Abstract : In order to control complex parts industrialization, cutting forces can be relevant data. Although cutting force prediction is a well-known subject by the scientific community, it still exists some ways of improvement. This research work focuses on the cutting force modelling enhancement according to two main points. Firstly, an analysis of clearance face contact conditions, linked to part geometry, effect on cutting forces. Secondly, the effect of flank wear on cutting force evolution with respect to the time. Based on experiments, in order to highlight relevant parameters to introduce in the new model, cutting force and flank wear models are formulated according to mechanistic approach. These developments are applied in milling, turning (boring, cylindrical turning and face turning) onTi6Al4V titanium alloy. Methodologies presented in this study can be easily adapted to others titanium alloys shades in order to cover large industrial range of applications.
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Théo Dorlin. Développement d’un modèle généralisé d’efforts de coupe pour l’usinage de l'alliage de titane Ti6Al4V. Application aux techniques de tournage et fraisage. Génie mécanique [physics.class-ph]. Ecole nationale supérieure d'arts et métiers - ENSAM, 2016. Français. ⟨NNT : 2016ENAM0044⟩. ⟨tel-01445249⟩

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