Can you engrave metal with a CO2 laser?
Yes, but when you are processing metal with a CO2 laser, it is necessary to apply a special paste or spray, which must be applied to the workpiece and dried before the laser process. The marking is burned into the metal with the laser. After the laser process, the residue from the paste or spray must be washed off. This step requires a good deal of energy, so the laser must be moved at an appropriately low speed. On some metals, you can achieve a high contrast by using this process. But keep in mind that not all metals are suitable for paste or spray marking. The necessary pastes or sprays are very expensive, and the whole process is very time-consuming. Metal can be directly marked with a fiber laser. A distinction is made between engraving, annealing marking, and coating ablation. The devices of the Speedy flexx series are equipped with a CO2and a fiber laser. Use both laser sources in a single job without having to manually change the laser source, the lenses or the focus. The patented JobControl® laser software makes it possible: Simply assign the desired laser source to each color of the graphic.