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According to different materials and different characteristics of different wavelengths of laser absorption, the laser marking machine is generally divided into two categories. One is the use of YAG laser, which is suitable for the processing of metal materials and most of the non-metallic materials, such as iron, copper, aluminum, gold, silver and other metals and all kinds of alloys, as well as ABS, ink coating, epoxy tree. Fat and so on. Another type of CO2 laser can only process non-metallic materials, such as wood, paper, acrylic, glass and so on. Some materials can also be applied to two types of laser marking machines, but the effect of marking is different. According to the laser, there are solid state lasers, fiber lasers, gas lasers, semiconductor lasers and so on. A relatively mature laser marking machine in China is a YAG solid laser marking machine. YAG marking machine includes three major categories: lamp pump, semiconductor and optical fiber. The CO2 marking machine includes two kinds of radio frequency tube and glass tube. These five kinds of products constitute the standard type of laser marking machine. In view of the actual needs of different users, with different configuration, fixture tooling and tailored software system, a perfect solution for laser marking is formed. Compared with traditional marking methods such as pneumatic marking, electric corrosion, screen printing, inkjet printer and mechanical engraving, laser marking has the following advantages:
1. Laser processing is light contact, non mechanical contact, no mechanical stress, so it is especially suitable for high hardness (such as hard alloy), high brittleness (such as solar silicon wafer), high melting point and high precision (such as precision bearing).
2。Laser processing has high energy density, short time, small heat affected zone, small thermal deformation and little thermal stress, which will not affect internal electrical performance。 Especially the cold processing of 532 mu m, 355 m, 266 m laser is suitable for precision machining of special materials。
3. Laser direct burning etch is a mark of sex, can not be erased, will not fail, deformation and shedding. It is suitable for anti-counterfeiting and anti fleeing products, so as to achieve the traceability requirement of products.
Laser marking machine is very common in industrial application. How should we choose suitable laser equipment with reasonable price in the face of many laser equipment? Today, I would like to talk about how to correctly select laser marking equipment.
First、Principle of selecting and purchasing laser marking machine：
Laser marking technology has many precious characteristics. However, the following principles should be followed to determine whether a product is suitable for adoption：
1、It can't be solved by other methods。 It can only be solved by laser processing；
2、It can be solved by other existing processing methods, but the use of laser processing methods can greatly improve the quality of products, improve production efficiency and significantly increase economic and social benefits；
广东快乐十分官网 3、We should give full consideration to those matching parts related to laser processing in the manufacturing process；
4、Attention should be paid to the application of laser processing and conventional machining technology in order to make full use of their strengths；
5、In the actual application, if the economy is not tense, it is suggested to purchase the import configuration, because some of the domestic technologies are still not required, the foreign configuration machines are stable, the after-sale maintenance is less, and the wage efficiency is greatly improved.
Second、Specific requirements for selecting lasers：
1、The output of laser beam is good, including the stability of mode and mode；
2、Whether the output power of the laser is large enough (this is the key to the speed and effect), the energy is stable (usually requires a stability of 2%, and in some cases the requirement is 1%, so that the ideal effect can be processed)；
3、Lasers should be highly reliable and should be able to work continuously under harsh industrial processing conditions；
4、The laser itself should have good maintainability, fault diagnosis and interlocking function, and the downtime is short；
5、The operation is simple and convenient, the control key function is clear, can reject illegal operation, and protect the laser from damage。 In addition, the price is also a key factor to be considered。