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Introduction to the characteristics of three mainstream Laser cutting machines in the market

Introduction to the characteristics of three mainstream Laser cutting machines in the market

(Summary description)YAG solid laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. At present, the output power of the products is mostly below 800W.

Introduction to the characteristics of three mainstream Laser cutting machines in the market

(Summary description)YAG solid laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. At present, the output power of the products is mostly below 800W.

Information

The first type of YAG solid Laser cutting machine

YAG solid laser cutting machine has the characteristics of low price and good stability, but the energy efficiency is generally less than 3%. At present, the output power of the products is mostly below 800W. Due to the small output energy, it is mainly used for punching and thin plate cutting. Its green laser beam can be applied in the case of pulse or continuous wave. It has short wavelength and good condensing property, which is suitable for precision machining, especially for hole machining under pulse. It can also be used for cutting, welding and photolithography. The wavelength of the laser of the YAG solid-state Laser cutting machine is not easily absorbed by non-metals, so it cannot cut non-metallic materials, and the YAG solid-state Laser cutting machine needs to solve the problem of improving the stability and life of the power supply, that is, to develop a large-capacity, long-life optical pump Exciting light sources, such as the use of semiconductor optical pumps, can greatly increase the energy efficiency.

Three-dimensional five-axis laser cutting machine

Main advantages: It can cut aluminum plates, copper plates and most non-ferrous metal materials that other Laser cutting machines cannot cut. The machine is cheap to purchase, low to use, and easy to maintain. Most of the key technologies have been mastered by domestic enterprises. The price of accessories and maintenance The cost is low, the operation and maintenance of the machine are simple, and the quality of workers is not high.

Main disadvantages and disadvantages: Only materials below 8mm can be cut, and the cutting efficiency is quite low

Main market positioning: cutting below 8mm, mainly for self-use small and medium-sized enterprises and most sheet metal manufacturing, home appliance manufacturing, kitchenware manufacturing, decoration, advertising and other industries users, gradually replacing wire cutting, CNC punching, Water cutting, low-power plasma and other traditional processing equipment.

The second type of optical fiber Laser cutting machine

Because it can transmit through the optical fiber, the flexibility of the fiber laser cutting machine is unprecedentedly improved, the failure points are few, the maintenance is convenient, and the speed is fast, so the fiber laser cutting machine has great advantages when cutting thin plates within 4mm, but it is affected by the wavelength of the solid laser. It is of poor quality when cutting thick plates. The wavelength of the fiber laser cutting machine is 1.06um, which is not easily absorbed by non-metals, so it cannot cut non-metallic materials. The photoelectric conversion rate of fiber laser is as high as 25%, and the advantages of fiber laser in terms of electricity consumption and supporting cooling system are quite obvious. According to international safety standards, laser hazard levels are divided into 4 levels. Fiber lasers are the most harmful to the human body due to their short wavelengths because they are harmful to the eyes. For safety reasons, fiber laser processing requires a fully enclosed environment.

Main advantages: high photoelectric conversion rate, low power consumption, can cut stainless steel plates and carbon steel plates within 12MM, it is the fastest laser cutting machine for cutting thin plates among these three machines, with small slits, good spot quality, and can be used for fine cutting cut.

Main disadvantages and disadvantages: At present, most of the core key technologies of fiber lasers are in the hands of one or two manufacturers in Europe and the United States, so most of the machines are expensive, most of which are more than 1.5 million, and the low-power ones are basically The cost is about 500,000 yuan. When cutting, the optical fiber is very thin and the gas consumption is huge (especially when cutting with nitrogen). In addition, it is difficult or even impossible for the fiber laser cutting machine to cut high reflective materials such as aluminum plates and copper plates, and the speed when cutting thick plates is high. very slow.

Main market positioning: Cutting below 12mm, especially the high-precision processing of thin plates, is mainly aimed at manufacturers that require extremely high precision and efficiency. It is estimated that with the emergence of lasers of 5000W and above, fiber laser cutting machines will eventually replace CO2 high-power Lasers Most of the market for cutting machines.

The third type of CO2 Laser cutting machine

CO2 Laser cutting machine can stably cut carbon steel within 20mm, stainless steel within 10mm, and aluminum alloy within 8mm. The wavelength of CO2 laser is 10.6um, which is easily absorbed by non-metals. It can cut non-metallic materials such as wood, acrylic, PP, and plexiglass with high quality, but the photoelectric conversion rate of CO2 laser is only about 10%. The CO2 Laser cutting machine is equipped with a nozzle for injecting oxygen, compressed air or inert gas N2 at the beam outlet to improve the cutting speed and the smoothness of the incision. In order to improve the stability and life of the power supply, the discharge stability of high-power lasers should be solved for CO2 gas lasers. According to international safety standards, laser hazard levels are divided into 4 levels, and CO2 lasers belong to the least hazard level.

Main advantages: high power, general power is between 2000-4000W, can cut full-size stainless steel, carbon steel and other conventional materials within 25mm, as well as aluminum plates within 4mm and acrylic plates within 60mm, wood material boards, PVC boards , and it is very fast when cutting thin plates. In addition, since the output of the CO2 laser is a continuous laser, it has the smoothest and best cutting section effect among the three laser cutting machines during cutting.

Main disadvantages and disadvantages: Since most of the core and key technologies of CO2 lasers are in the hands of European and American manufacturers, most of the machines are expensive, most of which are more than 2 million yuan, and the maintenance costs such as accessories and consumables are extremely high. Operational costs are high, and air consumption is high when cutting.

Main market positioning: 6-25mm medium and heavy plate cutting, mainly aimed at large and medium-sized enterprises and some laser cutting and processing enterprises purely for external processing. Since its market is greatly impacted by solid-state Laser cutting machines and fiber-optic Laser cutting machines, the market is in a state of obvious shrinkage. It is estimated that after further development of lasers in the future, CO2 Laser cutting machines will eventually be replaced by fiber-optic Laser cutting machines.

In the process of evaluating the Laser cutting machine, customers should choose different cutting equipment according to their own needs and cutting purposes.
 

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