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Laser Marking Principle
- Aug 24, 2018 -

The principle of laser marking is to use high energy density laser to local irradiate the workpiece, make the surface material vaporize or have the chemical reaction of color change, thus leave permanent mark. Laser marking can mark a variety of words, symbols and patterns, and the size of characters can even reach the micron level. The laser beam used for laser marking is generated by the laser, and after a series of optical conduction and processing, the beam is finally focused through the optical lens, and then the focused high-energy beam is deflected to the designated position on the surface of the object to be processed, forming permanent traces of the depression. The traditional 2D laser marking USES the back focusing mode, and the plane marking can only be carried out within the specified range. New 3 d laser marking machine available to solve the 2 d laser marking machine for a long time the inherent defect of the 3 d laser marking machine adopts advanced before gathering way, more dynamic focusing, take this light principles, such as the working principle of the candle imaging, move through the software control and dynamic focusing mirror, in front of the laser is focused on variable beam expander, by changing the focal length of the laser beam to realize accurate surface focus on processing of different objects.

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