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The difference between carbon dioxide laser marking machine and fiber laser marking machine

by:Leadtech Coding     2021-12-05

What is the difference between a carbon dioxide laser marking machine and a fiber laser marking machine? Carbon dioxide laser marking machine is divided into CO2 glass tube laser marking machine: it uses CO2 glass tube laser, which is an early generation product, and has been widely used at present; but it has a shortcoming: the life of CO2 glass tube laser is only 1000 hours , Can not satisfy mass production well.

The other is the CO2 radio frequency laser marking machine: using CO2 radio frequency laser, the life span is as long as 2-4 million hours, the marking speed is fast, and the lines are fine. Because of its good Performance can be matched with production line operations (that is, what we often call flying marking). Its appearance has greatly improved production efficiency.

The carbon dioxide laser marking machine is characterized by the use of carbon dioxide laser, which is a general-purpose model. This machine is suitable for marking most non-metallic materials, such as paper packaging, plastic products, label paper, leather cloth, glass ceramics, resin plastic, bamboo and wood products, PCB boards, etc. The principle is: laser marking uses a laser beam to make permanent marks on the surface of various materials. The effect of marking is to expose the deep material through the evaporation of the surface material, or to 'carve' traces through the chemical and physical changes of the surface material caused by light energy, or to burn off part of the material through light energy to show the required etching Patterns, text. A laser beam with a higher energy density (it is a concentrated energy flow) irradiates the surface of the material to be processed. The surface of the material absorbs the laser energy and generates a thermal excitation process in the irradiated area, thereby making the surface (or coating) temperature of the material Rising, causing discoloration, melting, ablation, evaporation and other phenomena.

The fiber laser marking machine uses multiple low-power air-cooled laser diodes as the pump source, and couples into a single laser fiber through multiple branches. The rare earth element (Nd, Yb or Er) fiber is used as the laser medium, and the mirror and fiber grating are used as the resonant cavity, which can be pulsed and continuously operated. It is characterized by an integrated structure fiber laser, excellent beam quality, and air-cooled without water cooling. Small size, high efficiency, long life, maintenance-free.

In short, the advantages of fiber laser marking machine are definitely much more than carbon dioxide laser marking machine, but both have their own characteristics. No one can replace anyone. The laser marking machine is more environmentally friendly, more reliable, more permanent marking, and more cost-effective.


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