Compared with traditional marking methods such as pneumatic marking, electric etching, screen printing, inkjet printer and mechanical engraving, laser marking has the following advantages:
1. Laser processing is used for optical contact, non mechanical contact and no mechanical stress, so it is especially suitable for high hardness (such as cemented carbide), high brittleness (such as solar wafers), high melting point and high precision (such as precision bearings).
2. Laser processing has the characteristics of high energy density, short time, small heat affected zone, small thermal deformation, small thermal stress, and will not affect the internal electrical performance. Especially 532 μ The cold processing of m, 355 m and 266 m lasers is suitable for precision processing of special materials.
3. Laser direct ablation etching, as a permanent mark, cannot be erased, will not cause invalid deformation and fall off, and is suitable for anti-counterfeiting and anti fleeing, meeting the product traceability requirements.
4. The laser processing system is a set of computer system with functions such as skip count and random code, which is easy to configure and modify, and can meet the requirements for unique code of products. Suitable for personalized processing, with the advantages of small batch and multi batch processing
5. The labeling effect is exquisite, the process is beautiful, and the precision is high, which can improve the product grade and increase the added value of the product. The line width can be as small as 10 microns, and the depth can be less than 10 microns, which can be marked on the part surface with the size of "mm".
6. Low consumption, no pollution, energy conservation and environmental protection, in line with European environmental standards, in line with the GMP requirements of the pharmaceutical industry. Low processing cost. The one-time investment of equipment is expensive, but the continuous large-scale processing ultimately reduces the processing cost of each part.
7. Flexible processing methods. The inner part is processed with transparent medium, which is easy to guide and focus, realize direction change, and easy to cooperate with CNC machine tools.