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What are the Differences Between Fiber Laser Cutting Machines and UV Laser Cutting Machines?
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What are the Differences Between Fiber Laser Cutting Machines and UV Laser Cutting Machines?

Views: 0     Author: HanTenCNC     Publish Time: 2022-01-20      Origin: Site

Precision Cutting Machine 1

Laser cutting machine is an important tool in the cutting field, known as the fastest "knife". The principle is to irradiate the surface of the material with a high-density and high-energy laser beam to vaporize and remove part of the material to form a cut. According to the wavelength characteristics, laser cutting machines are divided into CO2 laser cutting machines, fiber laser cutting machines, green laser cutting machines and ultraviolet laser cutting machines in industrial applications.


Laser cutting replaces traditional mechanical knives with invisible beams. It has the characteristics of high precision, fast cutting, not limited to cutting patterns, automatic typesetting to save materials, smooth incisions, and low processing costs. It will be gradually improved or replaced. Traditional metal cutting process equipment.


So, what are the differences between fiber laser cutting machines and UV laser cutting machines?

Analysis of the difference between fiber laser cutting machine and UV laser cutting machine:

1. The difference between processing materials:


The application range of laser is very wide, whether it is fiber laser or ultraviolet laser, it can be applied to metal and non-metal materials, especially the application range of ultraviolet laser is more extensive, covering almost all fields from metal to non-metal.


According to the characteristics of the material to be processed, the absorption of the laser band is different, so the selected laser cutting machine is different; according to the quality requirements of the processing, the higher the requirements for the beam quality and thermal influence of the laser, the selected laser cutting machine will also be different. ; According to the thickness requirements of the processing material, the threshold range of the laser energy within the band range is different, and the selected laser cutting machine is also different.


Fiber laser cutting machine and UV laser cutting machine have a certain homogeneity in metal material processing, and both can process ultra-thin metal materials below 0.2mm, such as copper, nickel, titanium alloys, etc. The difference is that the fiber laser cutting machine processes ultra-thin metals by scanning the galvanometer, the edges will be severely carbonized, the edges will be deformed due to thermal effects, and the edges of different materials may even have burrs. The efficiency of ultra-thin metal processing by UV laser cutting machine is lower than that of optical fiber, but the processing effect is good, the edge has no burr, the degree of carbonization is low, and the edge will not be deformed due to thermal influence. The difference lies in the processing principle of the fiber laser cutting machine and the UV laser cutting machine. The fiber laser cutting machine is vaporized cutting, while the UV laser cutting machine is processed by destroying the molecular bond mode of the material, and the thermal effect is smaller.


Fiber laser cutting machines have higher power and greater thermal impact, and are often used for cutting thick metal materials, such as stainless steel cutting, carbon steel cutting, etc., using a collimated focusing head for cutting, with high processing efficiency. However, the power of the UV laser cutting machine cannot achieve higher power at this stage. It can only be used for the cutting of thin non-metallic materials and ultra-thin metal materials, such as PCB, FPC, thin film materials, etc. The galvanometer scanning method is used layer by layer. Peel cutting.


2. Differences in processing methods:

The fiber laser cutting machine uses an infrared fiber laser with a wavelength of 1064nm, which is processed by collimation and galvanometer.

The UV laser cutting machine uses a UV laser with a wavelength of 355nm, and can also use a collimated focusing head and a galvanometer scanning processing method.

The collimating focusing head is commonly used in the one-time forming method of laser cutting metal materials that we have seen, while the galvanometer scanning is like a laser marking processing method, which peels off the material layer by layer to form a cut. It is obvious that the processing method of the collimating focusing head is more efficient, but the requirements for power are also higher. The power of common fiber laser cutting machines on the market can reach more than 20KW, while the power of ultraviolet laser cutting machines can only reach hundreds of watts in foreign countries, and only tens of watts on the domestic market.


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