355 UV laser marking machine is not clear enough how to adjust the marking depth

After the laser marking machine has been used for a long time, the laser intensity may decrease, and the marking of the laser marking machine is not clear enough. Don't worry about the solution in this case:

1. Whether the laser resonator has changed; fine-tune the resonator mirror. Make the output spot the best;

The laser marking machine is not clear enough how to adjust the marking depth

2. The acousto-optic crystal is offset or the output energy of the acousto-optic power supply is low. Adjust the position of the acousto-optic crystal or increase the workflow of the acousto-optic power supply;

3. The laser entering the galvanometer is off-center: adjust the laser;

4. If the current-adjusted laser marking machine still has insufficient light sensitivity to about 20A: the krypton lamp is aging, and the new lamp should be replaced;

The laser marking machine is not clear enough how to adjust the marking depth

other reasons:

If the lens is too dirty, dip a little alcohol on cotton, and then gently wipe the mirror surface; if the marking speed is too fast, the marking speed can be reduced, thereby increasing the filling density; the power current of the laser is not turned on or the power flow is too small, Turn on the power supply current or increase the power of the power supply current;

How to adjust the marking depth of the laser marking machine?

First of all: increasing the power of the laser, increasing the laser power of the UV laser marking machine can directly increase the depth of the laser marking, but the premise of increasing the power is to ensure that the laser power supply, laser chiller, laser lens, etc. should also be matched with it. The performance of related accessories must withstand the performance after the power is increased, so sometimes it is necessary to temporarily replace the accessories, but the cost will increase, and the workload or technical requirements may increase.

The laser marking machine is not clear enough how to adjust the marking depth

Secondly: to optimize the quality of the laser beam, it is necessary to replace the stable laser pump source, laser total reflection mirror and output mirror, etc., especially the laser material inside, the crystal end pump laser marking body, etc., which is conducive to improving the quality of the laser beam and thus Improved marking strength and depth.

Then: in terms of subsequent laser spot processing, using a high-quality laser group can achieve twice the result with half the effort. For example, use a high-quality beam expander so that the beam expands into a perfect beam similar to a Gaussian beam. Use high-quality F-∝ field lens to make the passing laser have better focus and better light spot. The energy of the light spot is used more uniformly in the effective width.