The development history of UV laser marking machines (and product types)

Laser engraving is a new processing technology developed after the application of laser welding, laser heat treatment, laser cutting, laser punching and other application technologies. It is a new marking process that is non-contact, pollution-free and wear-free. In recent years, with the improvement of laser reliability and practicality, coupled with the rapid development of computer technology and the improvement of optical devices, the development of laser marking technology has been promoted.

At present, the laser marking machines on the market mainly include CO2 laser marking machine, semiconductor laser marking machine, fiber laser marking machine, ultraviolet laser marking machine, etc. At present, laser marking machines are mainly used in some occasions that require more precision and higher accuracy. It is developed using 355nm UV laser, and the machine uses third-order cavity dual-frequency technology. Compared with infrared laser, 355 UV has a small focusing point, which can greatly reduce the mechanical deformation of the material and has a small processing heat impact. Because it is mainly used for ultra-fine surface and engraving, it is particularly suitable for food and pharmaceutical packaging material marking, micropores, high-speed division of glass materials and complex graphics cutting of complex silicon. Due to the high-energy ultraviolet rays directly destroying the molecular bonds on the surface of many non-metallic materials and separating the molecules from the objects, this method does not generate high heat, the UV laser focusing point is very small, and the processing has almost no heat impact, so it is called cold processing, so it is suitable for ultra-fine marking and engraving of special materials.

In the 1990s, after unremitting efforts in laser technology and optics, crystal and other energy sources, laser technology successfully developed ultraviolet laser marking equipment and took the lead in realizing the application of photovoltaic, glass, film and other industries. In addition, the successful development of this technology has solved the oxidation changes of metal surface marking and atomic active substances.

After the successful research of UV laser marking machine, it has played a supporting role in the fields of energy and materials, and has also played a huge indirect role in the gross national product and economic value, and has played an important and decisive role in the future development. Laser technology is an important scientific research technology of modern molecular structure. UV laser is a powerful technical means to study various molecular structures. It has been widely used in high-tech industries such as glass, crystal, and photovoltaics.

Laser marking technology, especially in the development of recent decades, has developed slowly, and has been widely used in continuous exploration. It has occupied the domestic market, greatly developed the application in the industrial field, and attracted the attention of more and more manufacturers. It is more widely used than abroad.