Feb 27, 2019
3D Laser marking is a laser surface sag processing method, compared with the traditional 2D laser marking, 3D marking on the surface smoothness of the processing object requirements have been greatly reduced, the effect of processing more colorful, more creative processing technology came into being.
A laser with high energy density is used to irradiate the workpiece locally, so that the surface material is gasified or the chemical reaction of color changes occurs, thus leaving a permanent marker. Laser marking can mark a variety of text, symbols and patterns, etc., character size can even reach the micron magnitude. The laser beam used for laser marking is generated by lasers, and after a series of optical conduction and processing, the beam is focused through optical lenses, and then the focused high-energy beam is deflected to the designated position on the surface of the object to be processed, forming a permanent trace of the depression. The traditional 2D laser marking adopts the post-focusing mode, which can generally only be used for plane marking within the specified range. The advent of the new 3D laser marking machine has solved the inherent defect of 2D laser marking machine for a long time, and the 3D laser marking machine adopts advanced front aggregation mode, which has more dynamic focusing seat, which adopts the working principle of light theory, like candle imaging, through software control and moving dynamic focusing mirror, and makes variable beam expansion before the laser is focused. In this way, the focal length of the laser beam is changed to achieve accurate surface focusing machining of different objects at high and low level.