1. The difference between the core components of the laser:
Fiber laser marking machine: Use a wavelength of 1064nm. Regarding the laser wavelength, generally the shorter the wavelength, the smaller the laser spot, the higher the accuracy, the smaller the heat-affected zone formed during the processing, and the finer the processing effect.
Ultraviolet laser marking machine: It is developed with an ultraviolet laser with a wavelength of 355nm. Compared with infrared lasers, this model uses third-order intracavity frequency doubling technology. Compared with infrared lasers, the focal point of 355 ultraviolet light is very small, which can greatly reduce the mechanical deformation of the material.
2. What is the difference between processing methods:
The processing method of ultraviolet laser marking machine is different from other laser marking equipment. Generally, for CO2 laser marking machines and fiber laser marking machines, they are both used for laser marking methods, while ultraviolet laser marking machines use chemical processing methods, mainly photochemical reactions. The difference between these two different processing methods is that the laser physical processing method mainly processes the surface of the product and material, while the laser chemical processing method is: the laser can be used to penetrate deeply into the product material to be processed.
According to the different working principles and processing methods of the two laser marking machines, the application fields of the two laser marking machines are also different. Fiber laser marking machine is suitable for laser marking on various metal surfaces. Because the light beam generates heat, it is not suitable for high-precision marking of special materials.
Ultraviolet laser marking machine: It is especially suitable for the high-end market of ultra-fine processing. It can mark the surface of packaging bottles of cosmetics, medicines, video tapes and other polymer materials. The effect is good, the marking and cleaning effect is strong, and it is better than ink, printing and No pollution; marking and cutting of flexible PCB boards; processing of micro-holes and blind holes of silicon wafers. Among them, 80% of data cable and adapter markings on the market come from ultraviolet laser marking.