Abstract
In this paper, the mechanism of laser dry cleaning was introduced, and the influence of different power on laser cleaning effect and surface performance after cleaning were investigated. The cleaning effect of 60-120 W cleaning power on the oxidized layer of a Q235 surface was analyzed by experiment and simulation. The results showed that the cleaning power of 70 W makes the surface performance after cleaning of the samples relatively optimized. The best cleaning power is 90 W. The sample surface of 100 W is the smoothest, but it causes slight damage to the matrix. The cleaning power of 120 W has the maximum friction coefficient, but it has the maximum damage to the matrix.
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