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Liste des publications du LURPA

Affichage des publications 231 à 240 sur 860 au total

Mechanical engineering

A 5-axis pocket roughing strategy reducing the remaining material volume

In today's business environment, the trend towards more product variety and customization is unbroken. Due to this development, the need of agile and reconfigurable production systems emerged to cope with various products and product families. To…

Baptiste Jousselin, Yann Quinsat, Christophe Tournier

17th CIRP Conference on Modelling of Machining Operations -

Mathematics

Optimisation de trajectoire pour le procédé de fabrication Laser Powder Bed Fusion (LPBF)

Le procédé de fabrication additive par fusion laser sur lit de poudre (LPBF) est un procédé couche par couche consistant à faire fusionner de la poudre au passage d'un laser. Malgré les nombreux avantages qu'elle présente, cette méthode de…

M Boissier, G Allaire, Christophe Tournier

CSMA, 14eme Colloque National en Calcul des Structures -

Mechanical engineering

Fabrication additive par modulation de puissance laser

The invention relates to a method for the selective additive manufacturing of a three-dimensional object from a powder layer, the method comprising the steps of: - applying an additive manufacturing powder layer on a support or on a previously…

Kamel Ettaieb, Sylvain Lavernhe, Christophe Tournier, Gilles Walrand

Mechanical engineering

Fabrication additive par modulation de vitesse de balayage

The present invention relates to a method for selective additive manufacturing of a three-dimensional object from a powder layer, the method comprising the steps of: - applying an additive manufacturing powder layer on a support or on a previously…

Kamel Ettaieb, Sylvain Lavernhe, Christophe Tournier, Gilles Walrand

Mechanical engineering

Trajectoire adaptative pour fabrication additive utilisant une source laser

The invention relates to a method (P) for determining the path followed by a selective additive manufacturing laser beam of a three-dimensional object, the laser beam being intended to be emitted to a layer of powder and moved along a path…

Kamel Ettaieb, Sylvain Lavernhe, Christophe Tournier, Gilles Walrand

Mechanical engineering

Influence of the opto-mechanical chain on the energy provided by the laser spot to the material in laser powder bed fusion processes

The additive manufacturing machines used in laser powder bed fusion processes are composed of an opto-mechanical chain whose purpose is to focus the laser in the work plane to locally fuse the material with the required energy. The opto-mechanical…

Kevin Godineau, Sylvain Lavernhe, Christophe Tournier

EUSPEN Special Interest Group Meeting: Advancing Precision in Additive Manufacturing -