When engraving with a fiber laser marking machine in China, the engraved effect is not as deep as before, but becomes shallower. What is the reason? Let me explain it today for your reference in use.
The first common reason may be that the lens of the fiber laser marking machine in China is dirty. Check the lens at this time. If there is something dirty, it must be cleaned in time. When cleaning, you can use a cotton swab dipped in alcohol and wipe it on the lens until the dust and other things are completely removed, then the shallow lettering will be improved.
The second reason is to see if the optical path deviates. If there is a deviation, it is necessary to readjust the optical path, and then check whether the focal length is correct. If not, adjust the focal length position at the same time.

The third reason is that the engraving speed of the fiber laser marking machine in China is too fast. When the engraving speed is faster, the engraving effect will become shallower, so it is best to adjust the speed to the right level.
The fourth reason is that the filling method set by the fiber laser marking machine in China is unreasonable. When this happens, you can try to adjust the filling effect, such as line spacing, etc., and then try the lettering effect.
The fifth reason is the power of the marking machine. Check to see if the percentage of power in the software is set correctly.
The sixth reason is the loss of the laser, which is the most serious situation. If the above five reasons have been checked and there is no problem, the loss of the laser must be considered. If it is serious, a new fiber laser needs to be replaced.
The above are several reasons why the lettering effect of the fiber laser marking machine in China becomes shallow, and I hope it will be helpful to everyone.