1. Fibre laser marking machine marking laser intensity reduction processing method
For some people who often use fibre laser marking machines, the laser intensity drop is a headache, which seriously affects the marking effect during processing, making the imprint not clear enough. In order to solve the problem of weak laser intensity, we must check and repair the equipment.
1. Check whether the laser cavity changes, fine-tune the cavity lens to ensure that the output spot reaches the best state;
2. Measure whether the laser entering the galvanometer is off centre and adjust the laser;
3. Check whether the sound and light crystal offset or the output energy of the sound and light power supply is low, adjust the position of the sound and light crystal or increase the working current of the sound and light power supply;
4. If the current is adjusted to about 20A, the sensitivity is not enough. It proves that the xenon lamp is ageing and it is urgent to replace the new lamp.
Fibre laser marking machines, like other machines, require the operator to perform the proper operation and good maintenance, so as to extend the life of the laser marking machine and improve the marking effect.
Second, the problem of shallow typing of fibre laser marking machine is summarized as follows:
1. The optical path is biased, and the optical path is re-adjusted with the multiplier to adjust to the optimal state.
2, the lens is dirty, use a cotton swab dipped in alcohol, gently scrub the YG rod end face, front reverse lens, rear lens, a beam expander and focusing mirror
3. Increase the laser power supply current of a laser marking machine and reduce the frequency of marking machine
4. Reduce the marking speed and change the filling method. And if the workpiece is in focus, refocus the focus.