Analysis of the reasons for the burnout of the protective lens of the laser welding machine
May 05,2023 | TOPTEK
The protective lens of the laser welding machine itself is a consumable, so it needs to be replaced regularly. However, due to the influence of the process/method/settings, it will cause damage due to anti-slag, and very few factors such as abnormal light output of the laser can also easily cause the protective lens of the laser welding machine to be used. Always burnt out. What causes the protective lens of the laser welding machine to burn out? How to deal with it?
Put an end to the improper use of laser welding machine equipment that often causes the protective lens to be burned out. We can extend the life of the laser welding machine protective lens from the following aspects.
1. First consider whether the auxiliary gas we blow is pure. Whether the pressure meets the standard. If you are blowing air, you need to check the quality of the compressed air.
2. Then it is necessary to check whether the optical path is shifted during the laser emission process, and whether other lenses are damaged during the operation.
3. Then it is necessary to check whether the applicable nozzle aperture is too large.
4. Finally, check whether the timing configuration of the software for perforation-blowing is reasonable.
How to correctly reduce the loss of protective lenses:
1. Properly increase the air pressure, usually the flow rate is not lower than 15, the pressure is not lower than 4, it is recommended to use an oxygen pressure gauge of not lower than 2 kg
2. When welding, try to weld the welding gun and the plate at 45°, not vertical;
3. Set the parameters as slowly as possible, for example, the gas on/off delay is 200-500ms, the light on/off power is 20%, and the light on/off gradual time is 200-300ms, as shown in the figure, it cannot be set to 0;
4. When welding aluminum and galvanized sheets, this material will damage the lens more easily than other materials, and the minimum power should be used for welding;
5. The quality of the protective lens also determines the durability of its use, it is recommended to use the original lens;
6. Under high power, compared with low power, the loss of the lens will increase, which is an uncontrollable range;
7. When none of the above can be handled, the F200 focusing lens + extended and wide scale tube can be replaced to reduce splashing.
The above is a brief introduction to the analysis of the reasons for the burnout of the protective lens of the laser welding machine and the reduction of the loss of the protective lens. When using laser welding equipment, some minor faults often occur due to improper operation or careless maintenance. Therefore, it is recommended that customers use it Laser welding equipment is best to undergo professional training and routine maintenance of laser welding equipment.
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