Laser cutting machine is a laser beam from a laser, which is focused into a high power density laser beam by the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point, while a high-pressure gas coaxial to the beam blows away the melted or evaporated metal. As the beam moves relative to the workpiece, it eventually causes the material to form a kerf, thus achieving the purpose of cutting.
Laser cutting process uses invisible light beam instead of traditional mechanical knife, with high precision, fast cutting speed, not limited by the cutting pattern, automatic nesting to save material, flat kerf, low processing cost, etc. Will gradually improve or replace the traditional metal cutting processing equipment. The mechanical part of the laser head has no contact with the workpiece and will not cause scratches on the surface of the workpiece when working; laser cutting speed is fast, the kerf is smooth and flat, and generally no subsequent processing is required; the cutting heat affected zone is small, the plate deformation is small, and the cutting slit is narrow (0.1mm~0.3mm); the kerf has no mechanical stress and no shear burr; the processing accuracy is high, the repeatability is good, and the material surface is not damaged; CNC programming can process any Flat surface, no need to open the mold to cut wide whole board, economic and time-saving.
Fiber laser cutting machine can do flat cutting and bevel cutting processing, the edge is neat and smooth, suitable for metal plate and other high-precision cutting processing. Fiber laser cutting machine is more space-saving and air-saving than ordinary CO2 laser cutting machine, with high photoelectric conversion rate, which is a new product of energy-saving and environmental protection, and is one of the world's leading technology products.
Advantages of fiber laser cutting machine compared to CO2 laser cutting machine.
1) Excellent beam quality: smaller focused spot, finer cutting line, higher efficiency and better processing quality.
2) Very high cutting speed: twice as fast as the same power CO2 laser cutting machine.
3) Very high stability: Adopting the world's top fiber laser, with stable performance and the service life of key components up to 100,000 hours.
4) Very high electro-optical conversion efficiency: the photoelectric conversion efficiency of fiber laser cutting machine reaches about 40-50%, which is three times of CO2 laser cutting machine, energy saving and environmental protection.
5) Very low cost of use: the power consumption of fiber laser cutting machine is only 20-30% of similar CO2 laser cutting machine.
6) Very low maintenance costs: no laser working gas; fiber transmission, no reflector; can save a lot of maintenance costs.
7) Easy product operation and maintenance: fiber optic transmission, no need to adjust the optical path.
8) Excellent flexible light guiding effect: compact size structure, easy to meet flexible processing requirements.
Of course, compared with CO2 laser cutting machine, the cutting range of fiber optic is relatively narrow. Due to its wavelength, it can only cut metallic materials and is not easily absorbed by non-metals, thus affecting its cutting range.
Advantages of fiber laser cutting machine compared to YAG laser cutting machine.
(1) cutting speed: fiber laser cutting machine speed than YAG 4-5 times faster, suitable for high-volume processing production
(2) Cost of use: the cost of using fiber laser cutting machine is lower than YAG solid-state laser cutting machine.
(3) photoelectric conversion efficiency: the photoelectric conversion efficiency of fiber laser cutting machine is about 10 times higher than YAG
The price of the corresponding fiber laser is a bit higher, so the price of fiber laser cutting machine is much higher than YAG laser cutting machine.
Metal laser cutting machine advantages
(1) High precision, high speed, narrow slit, small heat-affected zone, smooth and burr-free cutting surface.
(2) The laser cutting head does not come into contact with the material surface and does not scratch the workpiece.
(3) The narrowest cutting slit, the smallest heat-affected zone, the smallest local deformation of the workpiece, and no mechanical deformation.
(4) Good processing flexibility, can process any shape, also can cut pipe and other profiles.
(5) It can cut any hardness of steel plate, stainless steel, aluminum alloy plate, hard alloy and other materials without deformation.
(6) Save investment in moulds: laser processing does not need moulds, no mould consumption, no need to repair moulds, save time to replace moulds, thus saving processing cost and reducing production cost, especially suitable for processing of large products.
(7)Save material: Through computer programming, different shapes can be cut to maximize the utilization of material.
(8)Improve the speed of sample leaving the factory: laser processing is carried out immediately after the product drawing is formed, and the physical new product is obtained in the shortest possible time.
(9) Safety and environmental protection: laser processing with less waste, low noise, clean, safe and pollution-free, which greatly improves the working environment.
Fiber laser metal cutting machine value significance
Laser metal cutting machine is a process revolution of sheet metal processing, is the "processing center" of sheet metal processing; laser cutting machine is flexible, fast cutting speed, high consumption efficiency, short product consumption cycle, to win the universal market for customers. Laser cutting machine without cutting force, processing without deformation; no tool wear, good material compliance; whether simple parts or complex parts, can use the laser for fine and fast forming cutting; narrow slit, good cutting quality, high degree of automation, simple operation, low labor intensity, no pollution; can complete the automatic sample cutting, nesting, improve the application rate of materials, low consumption costs, good economic benefits. The technology has a long effective life, and most foreign countries currently use fiber laser cutting machines for plates over 2MM thickness, and several experts have analyzed that the next 30-40 years is a golden period for the expansion of laser processing technology.