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Development of a numerical model for the understanding of the chip formation in high-pressure water-jet assisted machining

Article dans une revue avec comité de lecture
Author
ccAYED, Yessine
ROBERT, Camille
ccGERMAIN, Guénaël
206863 Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité [LAMPA - PMD]
ccAMMAR, Amine
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
143462 Université de Tunis

URI
http://hdl.handle.net/10985/10378
DOI
10.1016/j.finel.2015.09.003
Date
2016
Journal
Finite Elements in Analysis and Design

Abstract

The aim of this study is to develop a new numerical cutting model that includes fluid structure interaction and to take into account heat transfer between the water-jet, the workpiece and the chip. This has been achieved using a CEL (Coupled–Eulerian–Lagrangian) technique, an algorithm has been developed to ensure heat exchange between the fluid and the structure. This new model allows decoupling of the mechanical and the thermal effects of the water-jet on chip formation and fragmentation. It has been demonstrated that fragmentation of the chip is ensured by the combination of the thermal and the mechanical effects of the water-jet. Moreover, the tool rake temperature is reduced by more than 400 °C, the tool/chip contact length is also decreased by about 30%.

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