4 important features of fiber laser cutting machine
Principle of fiber laser cutting machine: The original Chinese name of fiber laser cutting machine is called 'Laser' and '莱塞The acronym for [1]. It means 'light amplification by stimulated radiation'. Einstein proposed that there are different distributions of electrons in the atoms that make up matter. High-energy electrons can jump to low-energy levels when they are excited, and the energy will be released and excited to produce laser light.
Fiber laser cutting machine has four main characteristics: laser high brightness, high directivity, high monochromaticity and high coherence.
Directivity: The laser can effectively transmit a long distance with minimal attenuation, and it can also ensure that the focus is very high. These two points are important conditions for laser processing. Monochromaticity: The monochromaticity of the laser is extremely high and the divergence angle is small, which ensures that the beam can be focused on the focal point. The power at the focal point can reach 107～1011W/cm2, which can instantly generate high temperature in degrees Celsius and melt the object. Coherence: Coherence mainly describes the phase relationship of each part of the light wave. It is the laser with various excellent properties as mentioned above, so it has been widely used in industrial processing. At present, lasers have been widely used in various fields of national life, such as automobiles, rolling stock manufacturing, aviation, chemical engineering, light industry, electrical appliances and electronics, petroleum and metallurgy and other industrial sectors. Specifically, there are laser welding, laser cutting, laser drilling (including oblique holes, different holes, plaster punching, tipping paper punching, steel plate punching, packaging printing punching, etc.). Fiber laser cutting machine refers to irradiating the laser beam The high energy released on the surface of the workpiece melts and evaporates the workpiece, so as to achieve the purpose of cutting and engraving. We can also understand it as the separation of the edge. It uses the laser beam emitted from the laser generator to focus through the optical path system Under the high-power density laser beam irradiation conditions, the high heat generated by the laser is absorbed by the workpiece material, and the temperature of the workpiece rises sharply. After reaching the boiling point, the material begins to vaporize and form holes, accompanied by high-pressure airflow, as the beam moves relative to the workpiece. Finally, the material is formed into slits.
Details of fiber laser cutting machine: Fiber laser cutting machine is realized by applying high power density energy generated after laser focusing. Under the control of a computer, a pulsed laser discharges , So as to output a controlled repetitive high-frequency pulsed laser to form a beam with a certain frequency and a certain pulse width. The pulsed laser beam is guided and reflected by the optical path and focused on the surface of the processed object through the focusing lens group to form a fine , The high-energy-density light spot, the focal spot is located near the surface to be processed, resulting in instantaneous high-temperature melting and vaporization of the material. A high-energy laser pulse instantly sputters a small hole on the surface of the object. Under computer control, the laser beam is The processed material moves continuously according to the preset graphic route to form a 0.1-0.2mm slit, and finally the object can be processed into the shape on the vector diagram.
The fiber laser cutting machine uses focus The mirror focuses the CO2 laser beam on the surface of the material to melt the material with a rapid temperature rise. At the same time, the compressed gas coaxial with the laser beam is used to blow away the melted material, and the laser beam and the material move relative to each other along a certain trajectory to form a certain Shaped slits. Laser cutting technology is widely used in the processing of metal and non-metal materials, which can greatly reduce processing time, reduce processing costs, and improve workpiece quality. Laser cutting equipment usually uses computerized digital control technology (CNC) devices. Fiber optics As a new type of processing method, laser cutting machine processing has gradually been widely used because of its processing, fast, simple operation, and high degree of automation. Fiber laser cutting machine has low energy consumption, and because laser processing has no mechanical pressure on the workpiece, Therefore, the effect, accuracy and cutting speed of the cut products are very good. It also has the characteristics of safe operation and simple maintenance. It can work continuously for 24 hours. It can cut any complex shape; high efficiency, low cost, fast development speed, Due to the combination of laser and computer technology, users can realize laser engraving output as long as they design on the computer and can change the engraving at any time, and they can design and produce products at the same time.