Commonly seen in the field of non-metallic laser marking are solid laser marking machines and gas laser marking machines (CO2 laser cutting machines). Non metallic laser cutting machines generally rely on laser power to drive the laser tube to emit light, which is refracted by several mirrors and transmitted to the laser head. Then, the focusing mirror installed on the laser head converges the light into a point, which can reach a high temperature and instantly sublimate the material into gas, which is then sucked away by the exhaust fan to achieve the purpose of cutting; The main gas filled in the laser tube used in general laser cutting machines is CO2, so this type of laser tube is called a CO2 laser tube, and the laser cutting machine that uses this type of laser tube is called a CO2 laser cutting machine.
The world's first CO2 laser cutting machine was born in the 1970s. Over the past thirty years, due to the continuous expansion of application fields, CO2 laser cutting machines have been continuously improved. There have been multiple international and domestic enterprises engaged in the production of various CO2 laser cutting machines to meet market demand, including two-dimensional flat cutting machines, three-dimensional space curve cutting machines, pipe cutting machines, etc. According to the 2000 report of the authoritative magazine "Industrial LaserSolution" in the United States, a total of 3325 laser cutting systems (mainly CO2 laser cutting systems) were sold worldwide in 1999, totaling $1.174 billion. Although the development trend of laser cutting is fast, there is a significant gap in its application level compared to developed countries. By 2003, the cumulative number of CO2 laser cutting systems used in industrial production in China had reached about 500, accounting for approximately 1.5% of the total number of operating systems in the world.