Phénomènes dynamiques en usinage : Prédiction de l’état géométrique des surfaces usinées
TypeCommunications sans actes
Présentation concernant la modélisation des phénomènes dynamiques en usinage. Cette modélisation a pour particularité de permettre la prédiction de la géométrie des surfaces usinées (défauts de forme, d'ondulation) que la pièce soit considérée comme rigide ou flexible.
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A general method to accurately simulate material removal in virtual machining of flexible workpieces COFFIGNAL, Gérard; LORONG, Philippe; ILLOUL, Lounes (2015)Multi-axis milling and other computer numerical control machining processes allow us to create very complex geometries and thin parts. In this context, virtual machining is a powerful tool, but the simultaneous vibrations ...
GERASIMENKO, Artem; GUSKOV, Mikhail; DUCHEMIN, Jérôme; LORONG, Philippe; GOUSKOV, Alexander (ELSEVIER, 2015)Thin tubular parts are often subject to turning process during manufacturing. The increasing compliance of the workpiece, which is associated to tool displacement and to matter removal, can give rise to chatter, leading ...
Prediction of milling-induced vibrations in machining complex parts : numerical and experimental investigation DUCHEMIN, Jérôme; GUSKOV, Mikhail; LORONG, Philippe (CMVA, 2014)Avoiding vibrations during machining is an important issue for industry. When dealing with chatter prediction with a numerical approach, several models are required: dynamical models of the workpiece and tool, cutting ...
GERASIMENKO, Artem; GUSKOV, Mikhail; LORONG, Philippe; DUCHEMIN, Jérôme; GOUSKOV, Alexander (2016)Chatter prediction is nowadays frequently carried out for machining operations involving deformable parts or tools. These analyses are commonly based on the uncoupled elements of the system: frequency response of the ...
LORONG, Philippe; COFFIGNAL, Gérard; BALMES, Etienne; GUSKOV, Mikhail; TEXIER, Anthony (ASME, 2012)Milling is used to create very complex geometries and thin parts, such as turbine blades. Irreversible geometric defects may appear during finishing operations when a high surface quality is expected. Relative vibrations ...