The experiment shows that both CW laser and pulsed laser can remove the paint on the surface of the material and achieve the effect of cleaning. Under the same power condition, the cleaning efficiency of pulsed laser is much higher than that of continuous laser. At the same time, pulsed laser can better control the heat input and prevent the substrate temperature from being too high or micro-melting. CW lasers have an advantage in price, and can make up the gap in efficiency with pulsed lasers by using high-power lasers, but the heat input of high-power CW light is greater, and the damage to the substrate will also increase.
Therefore, there are fundamental differences between the two in the application scenario. High precision, the need to strictly control the substrate temperature, requiring substrate lossless application scenarios, such as molds, you should choose a pulsed laser. For some large steel structures, pipelines, etc., due to large volume and fast heat dissipation, the substrate damage requirements are not high, you can choose continuous laser.
