Plastics are one of the central materials for industrial applications. Depending on the chemical composition and the manufacturing process plastics show characteristic properties, optimised for their technical use.
Most mechanical processes like structuring, drilling and cutting of plastics require rework to achieve high-precision results. Additionally, the lateral and depth resolution are limited by the used mechanical tool.
The beam of an ultrashort pulse laser injects so much energy selectively, that the plastic is locally vaporised without melting or warping the surrounding material. USP processing allows the precise remove of material without mechanical strain of the plastic. It is also possible to process painted or coloured plastics.
The drilling of plastics with an USP laser is a popular procedure for the production of plastic strainers. The laser drilled plastic parts have their applications in the automotive sector, in electrical devices or in consumer goods. One of the most important plastics is polypropylene, because of his hardness and his high thermal capacity. The drilling of polypropylene is i.a. relevant for the production of plastic strainers for medical technology.