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- W620643934 abstract "Dans les procedes de mise en forme par enlevement de matiere on assiste a des ecoulements plastiques en grandes deformations a de grandes vitesses de deformation. Le calcul de la contrainte d'ecoulement ainsi que du couple de contraintes seuil est effectue a partir de lois de comportements viscoplastiques unidirectionnelles couplees a une modelisation des echanges thermiques. Les conditions limites demontrent qu'il y a bien transmission a l'outil d'un torseur complet d'actions. Un nouveau modele analytique 3d, de la formation du copeau, a ete ainsi developpe. Une experimentation a l'aide d'un dynamometre a six composantes permet de valider les differentes modelisations thermomecaniques et de confirmer la presence de couples a la pointe des outils." @default.
- W620643934 created "2016-06-24" @default.
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- W620643934 date "1998-01-01" @default.
- W620643934 modified "2023-09-23" @default.
- W620643934 title "Contribution à la modélisation et à la métrologie de la coupe dans le cas d'un usinage tridimensionnel" @default.
- W620643934 hasPublicationYear "1998" @default.
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