Laser marking depth adjustment method
May 05,2023 | TOPTEK
1. Direct adjustment method: increase the power of the laser: everyone knows that the laser is the core component of the laser marking machine, just like the engine of a car. Improve the quality of the laser, the laser beam must be improved. To put it bluntly, it is to increase the power of the laser. Provide its workload, but doing so will often increase the cost of the whole machine. But the effect is definitely immediate. Another point is that once the laser is upgraded, its corresponding supporting devices must be upgraded, so the cost of the whole machine will increase.
2. Change the field lens of the laser marking machine into a small-scale field lens. After the transformation, the marking depth will be deeper. For example, the previous semiconductor laser marking machine can be equipped with a 110 field lens, which becomes With a field lens of 50, the total laser energy and lettering depth will be about twice as good as before. The same is true for the popular fiber laser marking machines.
3. Improve the quality of the beam: To improve the quality of the beam, it is necessary to adjust the inside of the laser cavity, replace the light guide material or replace the pump source, etc. Or upgrade the laser full reflection mirror and output mirror. For example, in the case of semiconductor laser marking machines, small holes are added to increase the cooling precision, and the laser mode is adjusted to make the laser large, round and bright. In short: it is to improve the configuration of the laser cavity. Make modifications. This is to understand the structure and configuration of the laser marking machine, otherwise it will directly affect the equipment.
4. Slow down the marking speed of the laser marking machine. Under the same power and other parameters, just modify the marking speed, and the marking depth will of course be deeper. That is to say, if the speed slows down and the power increases, the hitting will be deeper.
5. Replace high-quality laser marking accessories and use high-quality laser group: it is a good way to use a beam expander to deal with the spot, so that the focus of the laser will be strong. The spot effect obtained is also ideal. For example, if the semiconductor machine laser marking machine is used, the marking depth will be better if the imported Q switch is used. The fiber marking machine replaces the brand laser.
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