A 300W 15mJ pulsed fiber laser cleaning machine is well – suited for cleaning welding surfaces due to its precise and non – contact cleaning mechanism. Here’s how it works and its advantages in this application:

How it works

– The laser cleaning machine emits high – energy pulsed laser beams. When these beams interact with the welding surface, the energy is absorbed by the contaminants such as oxides, slag, and oil. – The absorbed energy causes the contaminants to be rapidly heated and vaporized or fragmented into small particles. – The vaporized contaminants are then carried away by the assist gas (usually compressed air or nitrogen) that is directed at the cleaning area. The small fragmented particles are also blown away, leaving the welding surface clean.

Advantages

– **Precision cleaning**: It can accurately target the welding surface without affecting the surrounding areas. This is crucial as it helps to avoid any damage to the base metal or the adjacent welded joints. For example, in the manufacturing of automotive chassis, where the welding surfaces are often in close proximity to other components, the laser cleaning machine can clean the welding seams precisely without harming the nearby parts.

– **Non – contact cleaning**: Since there is no physical contact with the surface, there is no risk of mechanical damage or scratching that could occur with traditional cleaning methods like abrasive blasting or wire brushing. This is particularly important for delicate or high – precision welding surfaces, such as those in aerospace components, where any surface damage could compromise the integrity of the part.

– **Removal of various contaminants**: It can effectively remove a wide range of contaminants from the welding surface. Oxides that form during the welding process, slag residues, and oil or grease from the manufacturing process can all be efficiently removed, leaving a clean and pristine surface. This is beneficial for subsequent processes such as painting, coating, or inspection, as a clean surface ensures better adhesion of coatings and more accurate inspection results.

– **Improved surface quality**: The laser cleaning process can enhance the surface quality of the welding area. By removing the contaminants, it reveals the true surface of the metal, which can improve the appearance of the welded part. Additionally, the removal of surface impurities can also improve the corrosion resistance of the welding surface, prolonging the lifespan of the component.

– **Environmentally friendly**: Laser cleaning is a relatively clean and environmentally friendly process. It does not produce any chemical waste or harmful emissions like some chemical cleaning methods. The only by – products are the vaporized contaminants and small particles that are easily collected and disposed of, making it a more sustainable option for industrial cleaning.