Advantages and disadvantages of 3555nm UV laser marking

There are many traces of laser marking on chargers, wireless earphones and other supplies that we often come into contact with, and these processing are mainly completed by ultraviolet laser markers.

Different from other types of laser marking equipment, the ultraviolet laser marking device adopts the third-order intracavity frequency doubling technology to emit light, which is mainly completed in the form of "cold processing". And then realize the effect of etching pattern and text.

For thermal processing equipment such as fiber lasers and CO2 lasers, ultraviolet lasers can reduce the thermal deformation of materials, and at the same time, the 355nm ultraviolet light has a small focusing spot, which also has advantages in fine processing.

Traces of UV laser marking can be seen everywhere in life. Picking up the charger or earphone at hand, we can easily find the processing results of UV marking - the text and logo on these accessories, the text logo on the above is not affected by time. Worn and faded and blurred, you can't even feel the bumps when you touch it with your fingertips

Of course, UV lasers also have their own limitations, such as working environment, working temperature, and processing materials.

The suitable working temperature of the UV laser marker is 10-35 degrees, and there should not be too much dust in the environment. Although the processing of the UV laser marker will not generate smoke and dust, it is necessary to pay attention to environmental cleaning and equipment maintenance after daily processing.

At the same time, the working life of ultraviolet lasers is not long. The light-emitting time of an ultraviolet laser is 12,000 to 14,000 hours. Taking into account the average working time and work efficiency, it is about 2-3 years, compared with 5-6 years. Fiber lasers, this is undoubtedly the disadvantage of ultraviolet lasers.

UV lasers are suitable for processing various materials such as plastics, glass, flexible PCB boards, and metal surface coatings. Compared with CO2 lasers and fiber lasers, UV lasers have also been cited in fine processing scenarios, such as LCD glass, glassware, and silicon crystals. Wafer micro-hole, blind hole processing, etc.

Fine processing is the advantage of UV laser marking equipment, but to be fine, it is inseparable from the cooperation of lasers, motion axes and control systems. Lasers, flexible motion axes and control systems are whether the UV laser marking equipment is competent for the work. Important options.