How to choose a laser for laser cleaning

In modern industry, laser cleaning is rapidly emerging as a superior surface treatment technology. Especially with the application of fiber lasers, the popularization and improvement of this technology have been achieved. Fiber lasers have become the best choice for laser cleaning light sources due to their high reliability, stability, and flexibility. In laser cleaning equipment, both pulsed lasers and continuous lasers have their own advantages, and how to choose them has become a problem that troubles many industrial users.

Basic principles and classification of lasers
Laser cleaning depends on the properties of the laser, and fiber lasers are currently widely used types, mainly divided into continuous fiber lasers and pulsed fiber lasers. The former is suitable for macroscopic material processing, while the latter occupies a leading position in precision material processing. Continuous lasers are known for their stable output power and long working time, while pulsed lasers achieve precise surface treatment of materials through high-intensity, short duration laser pulses.

Comparative analysis of continuous laser and pulsed laser
In order to help industrial users understand and choose the laser cleaning technology that is suitable for themselves, we conducted a comprehensive experimental comparison between two types of lasers. The lasers used in the experiment are pulsed laser (laser model: YDFLP-CL-200-12-A) and continuous laser (laser model: CW-R-B-W-2000）.

Experimental samples and materials: We used aluminum alloy and carbon steel as test materials, and sprayed white paint on their surfaces with paint thicknesses of 20 μ m and 40 μ m, respectively.

Pulse laser cleaning: In the pulse light paint removal experiment, the power of the laser is 200W, the pulse width is 100ns, and the frequency is 60kHz. Perform two repeated scans on the surface of aluminum alloy and four scans on carbon steel. The results indicate that short pulse width can more effectively remove the paint layer and minimize substrate damage.

Experimental samples and materials: We used aluminum alloy and carbon steel as test materials, and sprayed white paint on their surfaces with paint thicknesses of 20 μ m and 40 μ m, respectively.

Pulse laser cleaning: In the pulse light paint removal experiment, the power of the laser is 200W, the pulse width is 100ns, and the frequency is 60kHz. Perform two repeated scans on the surface of aluminum alloy and four scans on carbon steel. The results indicate that short pulse width can more effectively remove the paint layer and minimize substrate damage.