Goodbye Absorbers: High-Precision Laser Welding of Plastics

Press Release / July 10, 2020

In the successfully completed NRW project SeQuLas, the Fraunhofer Institute for Laser Technology ILT and three industrial partners have developed a joining process that can be used to produce the smallest weld seams in transparent plastic components. The process makes use of a thulium fiber laser, which offers a particular advantage: Since plastics absorb the corresponding wavelength well, the process does not require additional absorbers such as soot. The process is particularly interesting for medical technology, as it should be used to increase flexibility and efficiency in industrial production.