Compagnie Generale Des Etablissements Michelin

Christian Geay

Gilles Walrand

Frédéric Pialot

Christophe De Lajudie

Albin Effernelli

Miguel Torres-Castellano

Olivier Lauwers

Benoît Pourcher

Jean-Baptiste Allard

Jeremy Chagnard

Alexis Treilhes

Jean-Luc Petitjean

A powder-based additive manufacturing installation () comprises a powder layering device () that can be displaced along a path linking a start zone (A) and an end zone (B). The layering device () comprises powder deposition means () for depositing powder in a powder deposition zone (D) situated between the start zone (A) and the end zone (B). The installation comprises a cleaning device () situated on the path of the layering device (). The cleaning device () comprises a blowing device () configured to blow a gas flow onto at least one surface of the powder deposition means ().

Powder-based additive manufacturing unit comprising a blower cleaning device

A device is provided for conveying additive manufacturing container/tray assemblies or additive manufacturing trays, the conveying device including at least two chambers for conveying an additive manufacturing container/tray assembly, each conveying chamber including at least one opening allowing the entry/exit of an additive manufacturing container/tray assembly, and each opening being provided with a door for closing the conveying chamber in a sealed manner.

Device for conveying additive manufacture container/plate assemblies

An additive-manufacturing facility and a method for managing a powder transported to and from additive-manufacturing machines of the facility are provided. According to the method, a volume of feedstock powder is stored, and the machines are automatically fed with powder from the volume of feedstock powder. For each machine, the powder fed to the machine undergoes at least one layering operation during an additive-manufacturing cycle, and excess powder in the layering operation is moved away and conveyed from the machine to the volume of feedstock powder. For each machine, recovered powder, which is derived from cleaning rough components produced by the machine, is reintroduced into the volume of feedstock powder. A same collection circuit is used to convey the excess powder and the recovered powder to the volume of feedstock powder.

Method for managing a powder in an additive manufacturing facility comprising a plurality of machines

An additive manufacturing facility operating in an automated and contained manner. The facility includes a containment chamber inside which a plurality of additive manufacturing machines is installed, each machine comprising a manufacturing chamber, inside the containment chamber, a supply device and a supply circuit for supplying the various machines of the facility with an additive manufacturing powder, a conveying device for conveying additive manufacturing container/tray assemblies comprising at least one conveying chamber circulating between the various machines, and (4) a cleaning device comprising at least one cleaning chamber for cleaning, in an automated and contained manner, the additive manufacturing trays in the cleaning chamber.

Additive manufacturing facility with successive nested confinement chambers

A machine for additive manufacturing of components by sintering powder includes a framework, a working zone, at least two beam emission and control modules, and at least two actuators. Each module, which is structured to emit an energy beam and to control the energy beam, is mounted inside the framework and is provided with an emission source and an optical system for focusing the energy beam emitted from the source. Each module acts on the working zone to manufacture a same component. Each optical system is axially movable in translation with respect to the framework. The actuators are associated with the optical systems, respectively, and are arranged to adjust axial positions of the optical systems with respect to the working zone, the axial positions being adjustable independently of each other.

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Clermont-Ferrand, France

Christian Geay