Can metal be engraved with a CO2 as well as a fiber laser?
When marking metal with CO2 lasers, a special paste or spray must be applied to the workpiece and dried before laser processing. The marking is burned into the metal with the laser. After laser processing, the residue of the paste or spray must be washed off. For this process, a lot of energy is required; so the laser must move at an appropriately low speed. On some metals, high contrast can be achieved using this process, but it should be noted that not all metals are suitable for paste or spray marking. The necessary pastes or sprays can be costly and the process time-consuming. Metal can be directly marked with a fiber laser. A distinction is made between engraving, annealing marking and coating ablation. The Speedy flexx series of laser machines are equipped with a CO2 and a fiber laser. Use both laser sources in a single job without having to manually change the laser source, the lens or the focus. The patented JobControl® laser software makes this possible: Simply assign the desired laser source to each colour within the graphic.