There are many reasons for the decrease in the power of laser marking machines. The common reasons are as follows. Here, Zhengming Laser will briefly introduce the related problems and solutions for everyone.
First, the marking speed is too fast
Solution: slow down.
Second, the laser power output DC 30V voltage drop, resulting in a decrease in laser output power
Solution: Replace the power supply.
Third, the optical path system is not accurate
Solution: Adjust the laser.
Solution: Adjust the position of the beam expander. The incident light should be at the center of the light entrance hole of the beam expander and the outgoing light should be at the center of the light exit hole.
Fourth, the surface of the workpiece is no longer on the focal plane
Solution: Adjust the surface of the workpiece to focus
V. Inaccurate beam mirror position and direction
Solution:
① Adjustment requirements of the beam expander;
② The poor adjustment of the beam expander has a great impact on the laser marking effect, which is mainly reflected in:
a. The laser power decreases;
b, The laser intensity is not uniform in the marking format;
c. The computer software setting center deviates from the physical center of the light output of the galvanometer lens;
d, Can not play the effect of expanding the beam.
The laser entering the galvanometer is off-center
Solution: Adjust the laser.
Seven, the lens, lens is dirty
Solution: Clean or replace.
