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2010-12-09 - Colloque/Article dans les actes avec comité de lecture - Anglais - 6 page(s)

Ducobu François , Rivière Edouard , Filippi Enrico , "An ALE Model to Study the Depth of Cut Influence on Chip Formation in Orthogonal Cutting" in Eighth International Conference on High Speed Machining, 202-207, Metz, France, 2010

  • Codes CREF : Mécanique appliquée générale (DI2100), Façonnage des métaux (DI2733), Usinage (DI2131), Mécanique appliquée spéciale (DI2200)
  • Unités de recherche UMONS : Génie Mécanique (F707)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)
Texte intégral :

Abstract(s) :

(Anglais) Nowadays producing parts and features ranging from several mm to several µm is becoming a common demand. Micro-milling is one of the processes able to fulfil it. The concepts of micro-milling are similar to macro-milling however some changes are induced in the scaling-down. The minimum chip thickness phenomenon, the importance of the microstructure of the machined material and the size effect are the main differences between the two processes. The ALE FEM model presented aims to study the depth of cut influence on chip formation in orthogonal cutting. The TANH law is used in this model to describe the behaviour of Ti6Al4V and allows the formation of a saw-toothed macro-chip. When the depth of cut decreases the model shows that the chip formation evolves away from macro-cutting. The specific features of micro-cutting reported in literature are highlighted in the results. Finally a minimum chip thickness prediction is performed.

Identifiants :
  • ISBN : 978-2-9534170-2-9
   
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