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Liste des publications du LURPA

Affichage des publications 131 à 140 sur 814 au total

Mechanical engineering

Optimal tool orientation in 3 + 2-axis machining considering machine kinematics

In 5-axis machining, the initial orientation and position of the part in the fixture on the machine table are chosen to avoid collisions and to ensure that axes ranges are respected. However, kinematics of the machine is rarely considered for…

Laureen Grandguillaume, Sylvain Lavernhe, Christophe Tournier

International Journal of Advanced Manufacturing Technology -

Mechanical engineering

Tool axis adjustment for 5-axis roughing operations

The increased accessibility of the tool achieved by using 5-axis roughing reduces the overall machining time of complex parts by reducing or eliminating the re-roughing and semi-finishing operations thereby decreasing the volume of remaining…

Baptiste Jousselin, Yann Quinsat, Christophe Tournier

CIRP Journal of Manufacturing Science and Technology -

Mechanical engineering

Influence of the CNC behaviour on the laser spot trajectory in LPBF process

The quality of the parts produced in additive manufacturing by laser powder bed fusion (LPBF) depends on the understanding of all the physics involved in the process. In LPBF, the effective path of the laser spot is rarely studied and existing works…

Kevin Godineau, Sylvain Lavernhe, Christophe Tournier

Joint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing -

Mechanical engineering

Direct additive manufactured beam shape defect identification from computed tomography and modal decomposition

As one of the main additive manufacturing (AM) advantages, lattice structures are being studied in many applications such as vibration attenuation, weight reduction of components or optimised heat exchangers. However, lattice structures are…

Marc-Antoine de Pastre, Yann Quinsat, Claire Lartigue

Joint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing -

Modeling and Simulation

Costs analysis of stealthy attacks with bounded output synchronized Petri nets

This paper concerns the security analysis of discrete event systems modeled with a particular class of synchronized Petri nets that include output functions, called Output Synchonized Petri nets. Such a formalism is suitable and tractable to…

Rabah Ammour, Said Amari, Leonardo Brenner, Isabel Demongodin, Dimitri Lefebvre

2021 IEEE 17th International Conference on Automation Science and Engineering (CASE) -