EOS a annoncé sa nouvelle machine de fusion de poudre métallique M290 à la conférence américaine RAPID 2014. Cet équipement intègre certains éléments qui ont fait leurs preuves de la machine précédente d’EOS, la M280. La nouvelle machine dispose de nouveaux systèmes de contrôle de la qualité en temps réel et de contrôle du processus. Il correspond ainsi aux conditions requises pour la fabrication en grande série, mais aussi celle de prototypes et de pièces de rechange. La machine a un volume de construction de 250 mm x 250 mm x 325 mm et réduit sensiblement le coût de fabrication de pièces.
Le communiqué de presse :
The new EOS M 290 offers extensive monitoring functions both for the system itself and for monitoring the build process. This adds even more extensive quality assurance to the field of AM. In particular, it makes the system attractive for industrial applications in the aerospace industry as well for medical applications. With the aid of EOSTATE PowderBed, a camera built into the process chamber monitors the powder bed, following powder deposition and exposure, by means of still images. EOSTATE Base ensures the consistent monitoring of a range of parameters, including the position of the Z axis or scanner, laser power, air humidity, temperature and pressure. Finally, EOSTATE LaserMonitoring measures the laser power throughout the entire build period.
Flexible components and extensive accessories
The system is equipped with a 400 Watt laser, which is characterized by its high radiation quality and stability of performance. The EOS M 290 can be operated under an inert (nitrogen) atmosphere or under argon, which permits processing of a great breadth of materials. These include light alloys, stainless and tool-grade steels, and superalloys. The EOS parameter sets ensure that parts can be manufactured with standardized property profiles, resulting in a broad spectrum of applications. As with the previous model, EOS also supplies its EOS M 290 customers with the EOS ParameterEditor, to allow them to modify a range of exposure parameters for themselves. The tool enables customers to develop their own parameters for specific applications on the basis of the EOS parameter sets. These include laser power and exposure speed or strategy. A new version of the ParameterEditor is currently under development, which will also allow modification of layer thickness, inert gas stream, build platform temperature, and skip layers