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Post-processing of additive manufactured parts: a numerical strategy applied in maxillary implantology

Article dans une revue avec comité de lecture
Author
DIDIER, Paul
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
LE COZ, Gael
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
ccPIOTROWSKI, Boris
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
BRAVETTI, Pierre
413289 Université de Lorraine [UL]
LAHEURTE, Pascal
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
MOUFKI, Abdelhadi
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/24964
DOI
10.1051/mattech/2022031
Date
2022-06
Journal
Matériaux & Techniques

Abstract

To obtain a functional part from additive manufacturing (AM) technologies, some surfaces require post-processing by machining. An approach is developed using additive manufacturing supports as a clamping device for the milling operation. A model combining an analytical approach to determine the cutting forces with a finite element model (FEM) to predict the dynamical response of the workpiece-supports system is proposed. The complex structure of the supports is homogenized with a simplified geometry with equivalent stiffness and mechanical properties. A case study from the biomedical field is proposed: the finishing operation of a custom-made maxillary reconstruction plate is simulated. A parametric study is proposed with: (1) two different lattice geometries used as support structures; (2) up and down milling; (3) different depths of cut.

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