Abstract
This work presents a two-step non-destructive method for cleaning the surface paint of CFRP. The method combines ablation and vibration, using a pulsed laser with a wavelength of 1064 nm. The effects of laser power, beam and path overlap rate on the removal of paints are investigated. The analysis focuses on the cleaning and the damage threshold of the paints and fibers. Additionally, the study analyzed the thermal accumulation effect and fiber damage resulting from various laser parameters. The cleaned samples were analyzed for micro-morphology, elemental composition, surface roughness, three-dimensional morphology, and contact angle to demonstrate the modulation of derivatization phenomena of CFRP surface paints under different cleaning states using this method. This points to the reliability and feasibility of the relevant treatment parameters and provides a reference for the subsequent research on the practical application of laser cleaning.
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