Either fast or precise - both are not possible in the production of the finest polymer structures with lasers. Or is it?
The combination of stereolithography and multiphoton polymerization should make it possible: Scientists at the Fraunhofer Institute for Laser Technology ILT are developing a machine for high-precision, economical 3D assembly techniques that uses both methods.
On November 1, 2018, the project partners ILT Fraunhofer, Bartels Mikrotechnik GmbH, Miltenyi Biotec and LightFab GmbH launched the project "High productivity and attention to detail in additive manufacturing through the combination of UV polymerization and multiphoton polymerization - HoPro-3D", which is funded by the European Union and the state of North Rhine-Westphalia.
The aim of the SeQuLas project is to develop a novel process technology for the absorber-free laser welding of thermoplastics.
In this case, not only the segmentation of the seam contour should be done by means of a continuously updating temperature field during the welding process.
The irradiation order and parameters should also be adapted in order to ultimately realise a defined energy input.
SeQuLas intends to increase the flexibility and efficiency of industrial production in NRW.