We report on the laser cutting of carbon fiber reinforced thermo-plastic (CFRTP) and carbon fiber reinforced plastic (CFRP) with a cw IR fiber laser (average power: 2 kW). CFRTP and CFRP are a composite material which contains carbon fibers and binding plastics. A well-defined 2D laser cutting of CFRTP and CFRP flat plates which were free of debris around the groove was performed by the laser irradiation with a fast beam galvanometer scanning on a multiple-scan-pass method. The area of laser-induced damages in the samples was observed by microscopic X-ray Computed Tomography. Laser cutting with a high speed beam scanning exhibits a clean top and an excellent sidewall quality along with a negligible heat affected zone. In addition, the laser cutting of CFRP for a three-dimensional molded sample was performed with a five-axis laser cutting machine.
We report on the laser cutting of carbon fiber reinforced thermo-plastics (CFRTP) with a cw IR fiber laser (single-mode
fiber laser, average power: 350 W). CFRTP is a high strength composite material with a lightweight, and is increasingly
being used various applications. A well-defined cutting of CFRTP which were free of debris and thermal-damages
around the grooves, were performed by the laser irradiation with a fast beam galvanometer scanning on a multiple-scanpass
The dual beam of cw-350 W single-mode near-IR fiber laser and ns-pulsed-35 W UV laser were used in the experiments
for cutting. The laser beam on the sample surface was scanned with a galvanometer scanner and focused with the f-theta
lens of 400 mm focal length for IR and UV laser irradiations. A prototype remote scanner head for the multiple laser
irradiations has been developed for a high-quality and high-speed laser processing of carbon fiber reinforced plastics
(CFRP). In this paper, we report on the laser trepanning of circular patterns on CFRP.