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What is the working principle of laser marking machine?

What is the working principle of laser marking machine?


Laser marking is a marking method that uses a high-energy-density laser to irradiate a part of the workpiece to vaporize or chemically change the color of the surface material, thereby leaving a permanent mark. Laser marking can print all kinds of text, symbols and patterns, etc. The character size can be on the order of millimeters to micrometers, which has special significance for the anti-counterfeiting of products. The extremely fine laser beam after focusing is like a tool, which can remove the surface material of the object point by point. Its advanced nature is that the marking process is non-contact processing, and no mechanical extrusion or mechanical stress is generated, so it will not damage the processed object; After laser focusing, the size is small, the heat affected area is small, and the processing is fine. Therefore, some processes that cannot be achieved by conventional methods can be completed. Tobacco and alcohol laser marking machine

The "knife" used in laser processing is the focused light spot. No additional equipment and materials are needed. As long as the laser can work normally, it can be processed continuously for a long time. The laser processing speed is fast and the cost is low. Laser processing is automatically controlled by the computer, and no human intervention is required during production.

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