1. The energy quality of the laser beam becomes worse.

2. The level of the machine is not adjusted properly (that is, the vibrating lens or the field lens lens is not parallel to the processing table).

3. The laser output spot is blocked (that is, the spot is not round enough after the laser beam passes through the galvanometer and the field lens): The laser output head, fixing fixture and galvanometer are not adjusted properly, which causes part of the laser spot to be blocked when the laser passes through the galvanometer lens. After the lens is focused, the spot on the frequency doubler is non-circular.

4. There is a problem with the galvanometer signal, or the galvanometer is interfered by the outside world: the galvanometer jitters slightly during the marking process, so that the marked text or pattern is not clear;

5. The reason for the material of the workpiece to be marked: the uniformity of the material, the uniformity of the texture, the uniformity of the painting or spraying or the thickness of the coating, the inconsistent oxidation time of the oxide parts, etc. will affect the absorption of the laser energy by the material. When the material is not uniform enough When, the effect of laser marking may be uneven.

6. The surface of the workpiece is not on the focal plane.

7. The deflection lens of the galvanometer is damaged: When the laser beam passes through the damaged area of the lens, it cannot be reflected out well, resulting in inconsistent laser energy.

8. The marking speed is too fast.

9. The service life of the laser is too long, resulting in attenuation.

10. The off-focus marking is used: because each field lens has a corresponding focal depth range, and the off-focus method can easily lead to a large-scale marking pattern, the edge is at the critical point of the focal depth or exceeds the focal depth range , So it is easier to cause uneven effects.

11. The size of the marking content (that is, the processing range) exceeds the scope of the field lens: every laser marking machine will be equipped with a field lens that is limited to a certain range. If the size of the marking content exceeds this range, it will be It is found that the laser effect at the boundary will show an uneven state.

12. The processed products are not placed smoothly, tilted or not parallel to the light path.

Reminder: If you encounter a problem that you cannot solve by yourself, do not repair it yourself to avoid unnecessary losses. It is recommended that you contact the merchant or consult the Foshan Fulan Laser customer service. The Fulan Laser technician will be on call. Should be resolved at any time.