Laser cutting machine is an important tool in the cutting field, known as a very fast "knife". The principle is to irradiate the surface of the material with a high-density and high-energy laser beam, melt, vaporize, ablate or reach the ignition point, and at the same time blow off the molten material with the help of a high-speed airflow coaxial with the beam, so as to cut the workpiece and form a cut.
At present, there are many kinds of lasers on the market, which are divided into various light sources, such as: green light, infrared light, ultraviolet light, etc. Each light source has different advantages and is applied to various materials. Laser cutting can be divided into four categories: laser vaporization cutting, laser melting cutting, laser oxygen cutting and laser scribing and controlled fracture.
So, what are the differences between the green light/infrared/ultraviolet and other laser applications of various light sources of laser cutting machines? The technical engineers of Lixing Laser will analyze and answer them for you.
Analysis of the difference between various light sources of laser cutting machines such as green light/infrared/ultraviolet laser applications:
Several light sources commonly used in laser cutting machines, optical fiber (red light), purple light (ultraviolet), green light, etc., different light sources are applied to different materials, according to the characteristics of the material to be processed, the thickness of the material, the processing quality requirements and The higher the requirements for laser beam quality and thermal influence, the absorption of the laser band is different, and the selected laser cutting machine will also be different.
1. Optical fiber (red light) of laser cutting machine light source:
Fiber Laser Laser) refers to a laser that uses rare earth element-doped glass fiber as the gain medium. The wavelength of the fiber is 1064 nm, which has high stability, high precision, fast running speed, low processing cost, high laser power, and many types of cutting materials. Suitable for the processing of large products; Optical fiber applicable materials: stainless steel plate, aluminum substrate, ceramic substrate, copper substrate, PCB, ceramic sheet, carbon steel, aluminum alloy, brass, copper, pickling sheet, galvanized sheet, silicon steel sheet, Electrolytic plates, titanium alloys, manganese alloys, etc., are suitable for cutting various metal materials.
2. Ultraviolet (purple) light source of laser cutting machine:
Ultraviolet laser 355nm wavelength, the product of this wavelength belongs to the all-round type, and its light spot is also small, due to the special UM wavelength, it has the title of all-rounder in the traditional processing field, laser marking, laser cutting, laser welding can be seen His figure, the fiber laser can't sit, it can do it, it can also be processed by C02, it performs well in ultra-wave cutting, and it is aimed at the microscopic metal products. Ultra-thin cutting can achieve no burr, neat and smooth, fast speed, low energy consumption and other advantages. Applicable materials for purple light: cover film, FPC soft board, PCB soft and hard board, FPC auxiliary material, ultra-thin metal, ceramic, polymer material, resin, silicon wafer, PET/PI/PP film, plastic film, copper foil, explosion-proof film , Electromagnetic film, Sony glue and other flexible films.
3. Green light of laser cutting machine light source:
The wavelength of green light is 532nm. It has a small spot and a shorter focal length. It belongs to the cold working mode and plays an irreplaceable role in precision cutting, especially in circuit boards, glass, ceramics, jewelry, glasses and other industries. their figures. Applicable materials for green light: precision cutting of cover film, FPC soft board, PCB soft and hard board, PET/PI/PP and other flexible films, ultra-thin glass, ceramic substrates and other materials.
Fiber laser cutting machines are mainly used in the metal cutting industry. At present, the production of the circuit board industry is basically UV and green light cutting machines, since they are all circuit board cutting applications. The main difference between UV laser cutting machine and green laser cutting machine lies in the cost of equipment, processing efficiency, processing effect and processing purpose.
Ultraviolet laser cutting machine can take into account FPC soft board cutting, IC chip cutting and some ultra-thin metal cutting in the PCB field, while high-power green laser cutting machine can only do PCB hard board cutting in the PCB field. Although cutting can also be done on boards and IC chips, the cutting effect is lower than that of UV lasers. Compared with the UV laser cutting machine, the green laser cutting machine has a lower price and higher processing efficiency in the early stage, but as the power of the UV laser cutting machine continues to rise, this advantage is gradually equalized. In the processing effect, the thermal effect is smaller and the effect is more ideal.
The above is the difference analysis of various light sources such as green light/infrared/ultraviolet laser application of laser cutting machine. The main products of Lixing Laser include laser cutting machine, full CNC hydraulic bending machine, laser welding machine, laser marking machine and laser application automation Equipment, etc., used in sheet metal processing, chassis cabinets, lighting, mobile phones, 3C, kitchen utensils, bathroom, auto parts machining and hardware industries. Click on the right to make an appointment for free sample proofing, online consultation, and free telephone consultation, and pay attention to the Lixing Laser WeChat service number to learn more about laser cutting machine information.
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