Advantages and Disadvantages Of CO2, YAG, Fiber Laser Cutting Machine

Laser cutting machine, is the end of the century the beginning of this century, a new kind of sheet metal processing equipment. After nearly 20 years of domestic and foreign technology update and process development, laser cutting technology and laser cutting machine equipment, is the majority of sheet metal processing enterprises are familiar with and accepted, and its high processing efficiency, high precision, good cutting section quality, Can be three-dimensional cutting processing and many other advantages to gradually replace the plasma cutting, water cutting, flame cutting, CNC punching and other traditional plate processing means.

According to the different laser generators, laser cutting machine currently on the market can be divided into three types: CO2 laser cutting machine, solid (YAG) laser cutting machine, fiber laser cutting machine three.

We often received a customer phone, ask the three laser cutting machine What is the difference, what are the advantages and disadvantages, today we briefly introduce the characteristics of three laser cutting machine:

The first YAG laser cutting machine

YAG laser cutting machine with low price, good stability characteristics, but the energy efficiency is generally low <3%, the current output power of most products in the 800W below, the output energy is small, mainly for drilling and sheet cutting. Its green laser beam can be used in the case of pulse or continuous wave, with a short wavelength, good condenser for precision machining, especially in the pulse under the hole processing the most effective, can also be used for cutting, welding and lithography. YAG solid laser cutting machine laser wavelength is not easy to be non-metallic absorption, it can not cut non-metallic materials, and YAG solid laser cutting machine need to be addressed is to improve the stability and life of the power supply, that is to develop large-capacity, Excitation light source, such as the use of semiconductor optical pump can greatly increase energy efficiency.

The main advantages: can cut other laser cutting machine can not cut aluminum, copper and most of the non-ferrous materials, machinery purchase cheap, low cost, easy maintenance, most of the key technologies have been dominated by domestic enterprises, parts prices and maintenance Low cost, and the machine operation and maintenance is simple, the quality of workers is not demanding.

Main disadvantages and shortcomings: only 8mm cutting the following materials, and cutting efficiency is relatively low

The main market positioning: 8mm following cutting, mainly for their own small and medium-sized enterprises and processing requirements are not particularly high most of the sheet metal manufacturing, home appliances manufacturing, kitchenware manufacturing, decoration, advertising and other industries users, gradually replace line cutting, CNC punch, Water cutting, low-power plasma and other traditional processing equipment.

The second type of fiber laser cutting machine

Fiber laser cutting machine because it can be transmitted through the optical fiber, an unprecedented degree of flexibility, fewer points of failure, easy maintenance, speed, so cutting within 4mm thin sheet of fiber cutting machine has a great advantage, but by the solid laser wavelength It is poor in cutting thick plates. Fiber laser cutting machine wavelength of 1.06um, not easily absorbed by non-metallic, it can not cut non-metallic materials. Fiber laser photoelectric conversion rate as high as 25% or more, in the electricity consumption, supporting cooling systems, fiber laser advantage is quite obvious. According to international safety standards, laser hazard level 4, fiber laser due to the short wavelength of the human eye damage is due to large, is the most dangerous level, for security reasons, the fiber laser processing requires a fully enclosed environment.

The main advantages: high photoelectric conversion rate, low power consumption, can cut 12MM within the stainless steel, carbon steel, is the cutting speed of the three machines in the fastest laser cutting machine, cutting small, good quality, can be used for fine Cutting.

Main disadvantages and shortcomings: Fiber laser most of the core key technologies are in Europe and the United States and other countries of the hands of one or two manufacturers, so most of the machines are expensive, most of the machine price of 1.5 million or more, low-power basic (Especially in the nitrogen cutting), the other fiber laser cutting machine is difficult or even can not cut aluminum, copper and other high-reflective materials, and the speed of cutting thick plate very slow.

The main market positioning: 12mm the following cutting, especially the sheet of high-precision machining, mainly for precision and efficiency requirements of the manufacturers, with the 5000W laser is expected to appear, Cutting machine for most of the market.

The third category CO2 laser cutting machine

CO2 laser cutting machine , can be stable cutting within 20mm of carbon steel, 10mm within the stainless steel, 8mm below the aluminum alloy. CO2 laser wavelength of 10.6um, relatively easy to be non-metallic absorption, high-quality cutting wood, acrylic, PP, plexiglass and other non-metallic materials, but CO2 laser photoelectric conversion rate of only about 10%. CO2 laser cutting machine in the beam at the exit of the injection of oxygen, compressed air or inert gas N2 nozzle, to improve the cutting speed and the smooth and clean incision. In order to improve the stability and life of power, CO2 gas laser to solve the discharge stability of high-power lasers. According to international safety standards, laser hazard level 4, CO2 laser is the lowest level of harm.

The main advantages: power, the general power in the 2000-4000W between the 25 mm can be cut within the full-size stainless steel, carbon steel and other conventional materials, and less than 4 mm aluminum plate and 60MM within the acrylic board, wood material board, PVC board , And is very fast at cutting the sheet. In addition, because the CO2 laser output is continuous laser, its cutting, is the cutting of these three laser cutting machine in the most smooth and best results.

Main disadvantages and disadvantages: Most CO2 laser core technology is in the hands of European and American manufacturers, so most of the machines are expensive, most of the machine prices in more than 200 million, and accessories and other related maintenance costs high, the other in actual The use of high operating costs, and cutting a large gas consumption.

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The main market positioning: 6-25 mm plate cutting, mainly for large and medium-sized enterprises and some pure external processing of laser cutting processing enterprises, but because of its laser maintenance consumption, the host power consumption and other factors can not be overcome, in recent years To the market by solid laser cutting machine and fiber laser cutting machine huge impact, the market is in a state of atrophy, it is estimated that after further development of the future laser, CO2 laser cutting machine will eventually be replaced by fiber laser cutting machine.

Customers in the assessment of laser cutting machine in the process, should be based on their needs and cut the purpose, to select a different cutting equipment.

Article Source: http://www.morntech.com