Publications

Mechanical engineering

Synthèse de stratégies de fabrication pour la maîtrise de la microstructure des pièces produites par dépôt de matière sous énergie concentrée

Metal additive manufacturing is a process that builds objects layer by layer, producing the material simultaneously with the object. A major industrial challenge is to achieve optimal material properties based on mechanical stresses. However, the…

Michèle Bréhier

Mechanical engineering

Intégration des spécificités d'une configuration coaxiale multifaisceaux pour la maîtrise du procédé de fabrication additive laser-fil

The Wire Laser Additive Manufacturing (WLAM) process can produce near-net-shape parts by depositing matter from a wire melted locally by a laser. While managing the wire feeding direction relative to the tool path can prove challenging, the use of…

Clément Roch

Mechanical engineering

Hermite Quartic Splines for Smoothing and Sampling a Roughing Curvilinear Spiral Toolpath

From an industrial point of view, the milling of 2.5D cavities is a frequent operation, consuming time and presenting optimization potential, especially through a judicious choice of the tool trajectory. Among the different types of trajectories,…

Cédric Leroy, Sylvain Lavernhe, Édouard Rivière-Lorphèvre

Applied Sciences - 2024

Mechanical engineering

Feature-based part decomposition and representation for multi-axis DED processes

The development of Directed Energy Deposition technologies enables the production of complex parts in Additive Manufacturing. Such parts require process planning to determine the best production sequence. In machining, the process planning is based…

Léo Pizzol, Sylvain Lavernhe, Christophe Tournier, Nicolas Béraud

18th CIRP Conference on Intelligent Computation in Manufacturing Engineering - 2024

Biomechanics

Vers un contrôle d'assistance intuitif d'un exosquelette via les signaux électromyographiques

Exoskeletons are promising devices, particularly for the prevention of musculoskeletal disorders, post-stroke rehabilitation or compensating for motor loss after spinal cord injury. However, they need to be properly controlled before they can be…

Lucas Quesada

Computer Aided Engineering

Automatic raster engineering drawing digitisation for legacy parts towards advanced manufacturing

Mechanical engineering drawings are commonly used in multiple industries, carrying essential information about the design and technical specifications of the parts they define. With large industry sectors shifting to advanced manufacturing processes…

Charles Maupou, Yin Yang, Gabin Fodop, Yifan Qie, Christophe Migliorini, Charyar Mehdi-Souzani, Nabil Anwer

18th CIRP Conference on Computer Aided Tolerancing (CAT2024) - 2024

Materials

Simulation du procédé WLAM à l'échelle des cordons : thermohydraulique et prédiction des microstructures

Zichen Kong, Gildas Guillemot, Michel Bellet, Charles-André Gandin, Denis Solas, Christophe Tournier

Journées SNS, Avancées en simulation numérique du soudage et de la fabrication additive : applications industrielles et innovation - 2024

Materials

Wire-Laser Additive Manufacturing : Multiphysics process simulation – CFD and microstructure prediction

Zichen Kong, Gildas Guillemot, Michel Bellet, Charles-André Gandin, Denis Solas, Michèle Bréhier

ECCOMAS CONGRESS 2024, 9th European Congress on Computational Methods in Applied Sciences and Engineering - 2024

Mechanics of materials

Effect of active cooling on the formation of IN718 microstructures in directed energy deposition additive manufacturing

Purpose -This paper focuses on laser metal powder directed energy deposition, which is used to repair parts or manufacture high-performance components. Fine and equiaxed microstructures are often targeted because of their homogeneous mechanical…

Michèle Bréhier, Daniel Weisz-Patrault, Christophe Tournier

Rapid Prototyping Journal - 2024

Automatic

A new global optimization for hybrid automaton Identification

System identification to a hybrid automaton is a complex and flourishing research field involving expertise in both continuous dynamics and discrete event system modeling. Current methodologies for hybrid automaton identification predominantly rely…

Yan Monier, Bruno Denis, Gregory Faraut, Nabil Anwer

17th Workshop on Discrete Event Systems (WODES'24) - 2024