Potentials for lasers in CFRP production

In lightweight construction, CFRP is a potential candidate to replace metals for many parts, if production costs can be reduced and quality can be improved. Indeed, composite materials combine high mechanical performances, low weight and good corrosion resistance. Laser processes, like surface activation and cleaning compete with conventional processes like abrasive jet machining, cryogenic cleaning and mechanical micro machining. In order to determine the specific advantages and drawbacks of different laser technologies we compare different laser sources and wavelengths on the application of surface ablation. Results are evaluated in terms of damage characterization and process speed and surface roughness.