Laser sintering is an additive layer construction process in which a laser beam is used to selectively fuse and thus bond material in powder form at defined points, thus building up a component in the powder bed layer by layer. In contrast to the related laser beam melting process, the powder particles are only partially melted. A heating system heats the powder bed to a temperature just below the material’s melting point, which means that the laser has to apply less power than if it were working without preheating. The process is particularly economical, as no support structures are required due to the stable powder bed, which reduces the amount of work required to unpack the products. Furthermore, the components can be placed freely in the build space, enabling particularly efficient use of the available build volume.
The compact EOS FORMIGA P 100 laser sintering system used at the Fraunhofer Institute enables the production of plastic products made of polyamide and polyamide-based materials within a few hours. Small series and individualized products with complex geometries can be economically implemented in an installation space of 200 mm x 250 mm x 330 mm.
- Laser power: 30 W
- Own nitrogen generator
- Processable materials: polyamide, polyamide-based materials
- Package size: 200 mm x 250 mm x 330 mm
- Layer thickness used: 0.1 mm
- Typical cycle time: 24 hours
- No support structures required