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Analysis of the Technical Principle of 3D Laser Marking Machine
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Analysis of the Technical Principle of 3D Laser Marking Machine

Views: 0     Author: HanTenCNC     Publish Time: 2021-11-17      Origin: Site

Laser Marking machine

The birth of 3D laser marking machine

In the traditional plane marking machine, the workpiece must be placed on the same plane, and the processing surface must also be on the same plane, in order to achieve one-time forming marking, and it is impossible to complete the surface marking.

With the increasing demand for individualization and customization in the manufacturing industry, the 3D laser marking machine came into being. The surface shape of the processed object is no longer limited to a plane-like surface, and can be extended to a three-dimensional surface to realize high-efficiency laser graphic marking and surface microstructure manufacturing of three-dimensional curved objects. 3D printing once attracted much attention because of its ability to realize the integration of various shapes of objects.

The principle of 3D laser marking machine

A high-energy density laser is used to locally irradiate the workpiece to vaporize the surface material or undergo a chemical reaction of color change, thereby leaving a permanent mark. Laser marking can mark a variety of characters, symbols and patterns, etc., and the size of the characters can even reach the order of micrometers. The laser beam used for laser marking is generated by a laser. After a series of optical transmission and processing, the beam is finally focused by optical lenses, and then the focused high-energy beam is deflected to the specified position on the surface of the object to be processed, forming a permanent depression trace. Traditional 2D laser marking uses a rear focus method, and generally can only perform flat marking within a specified range. The advent of the new 3D laser marking machine has solved the long-standing inherent defect of the 2D laser marking machine. The 3D laser marking machine adopts an advanced front gathering method and has more dynamic focus seats. This adopts optical principles and resembles The working principle of candle imaging is to control and move the dynamic focusing lens through software, and perform variable beam expansion before the laser is focused, thereby changing the focal length of the laser beam to achieve accurate surface focusing processing on objects of different heights. 



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