How does a laser marking machine work?

Laser marking is a kind of marking method that uses high energy density laser to irradiate a part of the workpiece to vaporize or change the color of the surface material, thus leaving a permanent mark. Laser marking can produce a variety of characters, symbols and patterns, and the size of characters can range from millimeter to micron, which has a special significance for the anti-counterfeiting of products. After focusing, the laser beam is like a tool, which can remove the surface material by point. The advanced nature is that the marking process is non-contact, and no mechanical extrusion or mechanical stress is generated, so that the processed products will not be damaged. Due to the small size, small heat affected area and fine processing after laser focusing, some processes that cannot be realized by conventional methods can be completed. Laser marking machine for tobacco and wine

The "cutting tool" used in laser processing is the light spot after focusing. It does not need additional equipment and materials. As long as the laser can work normally, it can be processed continuously for a long time. Laser processing is fast and low cost. Laser processing is automatically controlled by computer, and no human intervention is needed in production.
plastic laser engraving machine

Laser processing technology is a technology that uses the characteristics of the interaction between laser beam and material to cut, weld, surface treat, punch, micro process materials, and identify objects as light source. The biggest traditional application field is laser processing technology. Laser technology is a comprehensive technology involving many disciplines such as light, machine, electricity, materials and testing

The principle and emission process of CO2 laser marking machine are complex. There are three different movements of molecules.

One is the movement of electrons in a molecule, which determines the electron energy state of the molecule;
mini laser engraving machine for metal

Second, the atomic vibration motion in the molecule, that is, the atoms in the molecule constantly vibrate around their equilibrium position, and determine the vibrational energy state of the molecule;

Third, the molecular rotation, that is, the continuous rotation of molecules in space as a whole, determines the energy state of molecules. The molecular motion is extremely complex, so the energy level is also very complex.
DIY laser engraving machine

CO2 is a linear symmetrical molecule, and two oxygen atoms are on both sides of carbon atom respectively, which means the equilibrium position of the atom. Atoms in the molecule are always moving and they must vibrate around their equilibrium positions. This is the principle of CO2 laser marking machine