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Laser Cutting Machines
Inventory the advantages and disadvantages of various laser cutting methods
2023-05-16 11:26:30 technical college

CO2 laser cutting machine

Class I YAG solid laser cutting machine

YAG solid laser cutting machines have low prices and good stability, but low energy efficiency<3%. Currently, the output power of most products is below. Due to its low output energy, it is mainly used for punching and cutting thin plates. Its green laser beam can be used for pulse or continuous wave, with short wavelength and good focusing performance, suitable for precision machining, especially in pulse hole processing, and can also be used for cutting, welding, and photolithography. The wavelength of the YAG solid laser cutting machine laser is not easily absorbed by non-metals, so it cannot cut non-metallic materials. The problem that YAG solid laser cutting machine needs to solve is to improve the stability and lifespan of the power supply, that is, to develop high-capacity and long-life optical pump excitation light sources, such as semiconductor optical pumps, which can greatly improve energy efficiency.

Main advantages: It can cut other laser cutting machines, but cannot cut aluminum plates, copper plates, and most non-ferrous metal materials. The machine is cheap to purchase, has low usage costs, and is easy to maintain. Most key technologies have been mastered by domestic enterprises, with low accessory prices and maintenance costs. The machine operation and maintenance are simple, and the quality requirements for workers are not high. Laser cutting machine automatic loading and unloading machine mechanism.

Main Disadvantages and Disadvantages: Can only cut materials below 8mm with low cutting efficiency

Main market positioning: Cutting below 8mm is mainly aimed at most users in industries such as sheet metal manufacturing, home appliance manufacturing, kitchenware manufacturing, decoration, advertising, etc. It does not have particularly high requirements for self use small and medium-sized enterprises and processing, gradually replacing traditional processing equipment such as wire cutting, CNC punching machines, water cutting, and low-power ionomers. Observe how the laser cutting machine for cutting pipes is cut to a certain length.

Second type fiber laser cutting machine

The fiber laser cutting machine has great advantages in cutting thick plates due to its ability to transmit through optical fibers, unprecedented flexibility, fewer fault points, convenient maintenance, and fast speed. However, due to the influence of solid-state laser wavelength, the quality of cutting thick plates is poor. The wavelength of the fiber laser cutting machine is 1. Non metallic materials are not easily absorbed by non-metals and cannot be cut. The photoelectric conversion rate of fiber laser is over 25%, which has obvious advantages in power consumption and supporting cooling systems. According to international safety standards, laser hazards are classified into four levels. Due to the length of the wave, fiber optic lasers cause the greatest harm to the human body. For safety reasons, fiber laser processing requires a completely enclosed environment.

Main advantages: high photoelectric conversion rate, low power consumption, capable of cutting stainless steel and carbon steel plates. It is the fastest laser cutting machine among the three machines for cutting plates, with small cutting seams and good spot quality, and can be used for fine cutting.

Main Disadvantages and Disadvantages: Currently, the core and key technologies of fiber lasers are mostly in the hands of one or two manufacturers in Europe and America, so most machines are expensive, with most machines priced at over 10000 yuan and low-power at around 500000 yuan. When cutting, due to the thin seams of the optical fiber and the high gas consumption (especially nitrogen cutting), it is difficult or even impossible for the fiber laser cutting machine to cut high reflective materials such as aluminum and copper plates, and the speed of cutting thick plates is very slow.

Main market positioning: The following cutting, especially high-precision plate processing, is mainly aimed at manufacturers with high precision and efficiency requirements. It is estimated that with the emergence of the above lasers, fiber laser cutting machines will eventually be replaced by most of the CO high-power laser cutting machines in the market. Laser cutting machine loading and unloading.

Class III CO2 laser cutting machine

The CO2 laser cutting machine can stably cut carbon steel, stainless steel, and aluminum alloys below 8mm. The wavelength of CO laser is 10.6um, and non-metals are easily absorbed by non-metals. It can cut high-quality non-metallic materials such as wood, acrylic acid, PP, and organic glass, but the photoelectric conversion rate of CO laser is only about 10%. CO2 laser cutting machine is installed at the beam outlet to spray oxygen, compressed air, or inert gas N2. It is used to improve cutting speed and the flatness of the incision. In order to improve the stability and service life of the power supply, CO gas lasers should address the discharge stability of high-power lasers. The laser hazard level is divided into 4 levels according to international safety standards, with CO laser being the least hazardous level.

Main advantages: High power, generally between -, capable of cutting traditional materials such as stainless steel and carbon steel up to 25mm in full size, as well as acrylic and wood materials up to 4mm aluminum plate. PVC cutting thin plates is fast. In addition, because CO2 laser outputs continuous laser, the cutting effect of the cross-section is the smoothest and best during cutting.

Main Disadvantages and Disadvantages: Most of the core and key technologies of CO lasers are in the hands of European and American manufacturers, so most machines are expensive. The price of most machines exceeds 10000 units, and maintenance costs related to accessories and consumables are very high. In addition, the actual use and operation costs are very high, and the gas consumption during cutting is very high. Advantages of laser cutting machine.

Main market positioning: 6-25mm thick plate cutting and processing, mainly targeting large and medium-sized enterprises and some pure external processing laser cutting and processing enterprises. However, due to high laser maintenance losses and high host power consumption, the market has been greatly affected by solid laser cutting machines and fiber laser cutting machines in recent years, and the market is in a significant shrinking state. It is expected that laser will further develop in the future, and ultimately CO laser cutting machines will be replaced by fiber laser cutting machines. Cutting cost of laser cutting machine.

In the process of evaluating laser cutting machines, customers should choose different cutting equipment based on their own needs and cutting purposes.

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