Main factors affecting the laser processing performance of laser marking machine

First, the laser marking machine and laser beam related elements:

The laser output form of laser marking machine includes continuous output CW mode and laser marking machine pulse mode. The absorption characteristics of the processing material to the laser beam will be affected by the laser wavelength, and the laser wavelength advantage depends on the working medium of the laser marking machine laser. The output power is the size of the energy, the duty cycle is the proportion of the laser irradiation time lock in each pulse time when the pulse is output, the frequency is the number of irradiation per second, and the beam pattern represents the distribution of the energy front .

Second, the laser marking machine and laser processing lens related elements:

The focus distance of the laser marking machine represents the distance from the lens position of the laser marking machine to the focus, and is an element that directly affects the spot diameter and depth at the focus position. Among the lenses processed by laser marking machines, there are two types of concave-convex lenses and ordinary plano-convex lenses that can suppress aberrations.

Third, the elements of the laser marking machine and the focus spot of the laser beam:

The diameter of the focus of the laser marking machine depends on the specifications of the lens of the laser marking machine. The shorter the focal length of the lens, the smaller the diameter of the focus. The focus position of the laser marking machine refers to the relative position of the focus point from the surface of the processed material. We define the direction above the material surface as positive, and the definition below as negative. The depth of focus of the laser marking machine refers to the range around the focal point where the spot size is substantially the same as the spot diameter at the focal point.

Fourth, laser marking machine and nozzle related elements:

The diameter of the nozzle of the laser marking machine determines the limit of melting, combustion and the flow of auxiliary gas sprayed on the processing site. The reason why the tip of the nozzle is round is mainly to be capable of processing in any direction. The distance between the nozzle of the laser marking machine and the surface of the processed material is set as narrow as possible.

Fifth, the laser marking machine and auxiliary gas related elements:

The pressure of the auxiliary gas of the laser marking machine affects the discharge of molten metal from the slit. The type of gas affects the processing quality and processing capacity. Oxygen is needed to support the combustion during cutting, while welding or heat treatment needs to protect the processed parts. Each nozzle has its own optimal gas flow.

Sixth, laser marking machine and laser processing materials related elements:

The material and thickness of the plate will affect the consumption of laser energy, the surface condition of the material processed by the laser marking machine will affect the stability of the laser beam absorption, and the processed shape will diffuse the heat.