Ships are prone to corrosion and aging due to long-term contact with water. Regular cleaning of rust and pollutants on the working surface of ships is an important task of ship production and maintenance. Good ship cleaning is not only an important guarantee for high-quality manufacturing technology of ships, but also an important guarantee for safe operation of ships.
Compared with conventional cleaning technologies, the advantages of laser cleaning of ships are mainly reflected in:
（1）Non contact cleaning method, mechanical pressure and workpiece damage
（2） The portable operation method is flexible, and the spot size is adjustable, which is suitable for precise positioning of complex planar or curved parts.
（3） The cleaning process is highly controllable, which can meet the cleaning requirements of various pollutants
（4） Laser cleaning has certain surface modification effect, effectively prevents secondary oxidation, and improves surface mechanical properties
（5）The laser cleaning process has low noise and no dust, chemical reagent and other pollution.