1.1 Introduction of fiber laser marking machine
Specially for jewellary works
The laser marking machine uses the laser beam to make permanent mark on the surface.
The main effect of laser marking machine is:
- Evaporate the target material surface with laser and show the deep material;
- Cause the physical chemistry reaction to the surface with laser light and “engrave” the required pattern and text;
- Burn the material with laser, thus show the required pattern and text. The fiber laser marking machine is mainly composed of: fiber laser, galvanometer (marking head), software control card, industrial control computer, equipment cabinet, and horizontal stand for work piece, etc.
- Applicable to pipes industry, cables industry, gift industry, electronics industry, packaging industry, pharmaceutical industry, food and beverage, tobacco and alcohol industry, daily necessities
1.2 Working principle of fiber laser marking machine
It uses the fiber laser to produce laser and educes the laser with fiber, and then cooperate with high-speed optical scanning galvanometer for work piece marking. The core component is the fiber laser.
The fiber laser adopts the rare-earth-doped fiber as the gain medium. The fiber core in the fiber laser is very thin, so the high power density can be easily formed within the fiber under the action of pump light, causing the laser-level population inversion of the laser material. Therefore, the appropriate extra positive feedback circuit can cause the resonant cavity and form the laser oscillation. In addition, the fiber matrix has wide fluorescence spectra, so the fiber laser is generally tunable (its wavelength can be adjusted within a certain scope), and mark several colors when marking (corresponding material).