Daily maintenance and adjustment of laser welding machine

The maintenance of the laser welding machine must be carried out by specially trained personnel, otherwise it is easy to cause serious man-made damage.

1) In order to ensure that the laser welding machine has been working normally, after two weeks of continuous operation or when it is stopped for a period of time, first check the components in the optical path such as YAG rods, dielectric diaphragms, and lens protection glasses before starting the machine. The optical components do not have any abnormal phenomena such as dust contamination, mildew, etc., and should be treated in time if any of the above phenomena are observed, so as to ensure that the optical components will not be damaged under strong laser irradiation. (If the use environment of the equipment is relatively clean, the above inspection can be extended to one month or longer.)

2) The purity of the cooling water is the key to ensure the laser output efficiency and the life of the laser concentrator assembly. During the use, the conductivity of the inner circulating water should be checked once a week to ensure that its conductivity is 30.5 MW·cm, and it must be replaced once a month. For the deionized water circulating, the conductivity of newly injected pure water must be 32 MW·cm. Observe the color change of the ion exchange column in the cooling system at any time. Once the color of the resin in the exchange column is changed to dark brown or even black, the resin should be replaced immediately.

3) The welding equipment operator can often check the laser output spot with a black image paper. Once the uneven spot or energy drop is found, the resonator of the laser should be adjusted in time to ensure the beam quality of the laser output.