Views: 29 Author: Leapion Publish Time: 06-07-2022 Origin: https://www.leapion.com/
Laser cutting is a fabrication process which employs a focused, high-powered laser beam to cut material into custom shapes and designs. This process is suitable for a wide range of materials, including metal, plastic, wood, gemstone, glass, and paper, and can produce precise, intricate, and complex parts without the need for custom-designed tooling.
There are several different types of laser cutting available, including fusion cutting, oxidation cutting, and scribing. Each laser cutting process can produce parts with precision, accuracy, and high-quality edge finishes, and with generally less material contamination, physical damage, and waste than with other conventional cutting processes, such as mechanical cutting and waterjet cutting.
However, while laser cutting demonstrates certain advantages over more conventional cutting processes, some manufacturing applications can be problematic, such as cutting reflective material or material requiring secondary machining and finishing work. The requirements and specifications demanded by a particular cutting application—e.g., materials and their properties, energy and power consumption limits, secondary finishing, etc.—help determine the type of cutting process most suitable for use.
As described in the previous section, the type of laser suitable for a laser cutting application is largely determined by the material being cut. However, other considerations may be taken into account when choosing and setting up a laser cutting machine for a specific application, such as the machine configuration, laser power, wavelength, temporal mode, spatial mode, and focal spot size.
Beam Movement. Once the localized heating, melting, or vaporizing has started, the machine moves the area of material removal across the workpiece to produce the full cut. The machine achieves the movement either by adjusting the reflective mirrors, controlling the laser cutting head, or manipulating the workpiece. There are three different configurations for laser cutting machines, defined by the way in which the laser beam moves or is moved over the material: moving material, flying optics, and hybrid laser cutting systems.
The laser power, or wattage, can increase or decrease the total processing time for a cutting application. This occurrence is due to the increasing intensity of the beam as the laser’s power increases (Power density (Intensity) = P/πr2). The price of a laser cutting machine is typically dependent upon the power of the laser; the more powerful the laser, the more expensive the equipment. Therefore manufacturers and job shops must find a balance between processing costs and equipment costs when choosing a laser machine based on laser power.
The wavelength of the laser beam is the spatial length of one complete cycle of vibration for a photon within the beam. The particular wavelength of the laser beam partially determines the material’s radiation absorption rate, which is what allows the material to be heated, melted, and vaporized to produce the necessary cuts.
The mode refers to how the laser beam’s intensity is distributed across the cross-sectional area of the beam. The mode affects the size of the beam’s focal spot and the intensity of the beam, which in turns affects the quality of the cut. Typically, the optimal mode has a Gaussian intensity distribution (TEM00).
The beam is directed through a lens or a specialized mirror and focused to a small spot of high intensity. The point at which the beam’s diameter is the smallest is called the focal spot, or focus. The optimal position of the focus for a laser cutting application is dependent on several factors, including the material’s properties and thickness, beam shape and mode, type of assist gas, and the state of the focal lens.
Laser cutting is suitable for a variety of metal and non-metal materials, including plastic, wood, gemstone, glass, and paper. As mentioned in the previous sections, the type of material being cut and its properties largely determine the optimal cutting mechanism, cutting gas and cutting gas pressure, and laser machine to use for the laser cutting application.
LEAPION fiber laser cutting machine is equipped with Japanese Yaskawa motor, Japan Shimpo reducer and Taiwan YYC rack. The positioning accuracy of the machine tool can be 0.02mm. The whole line can realize full-automatic intelligent operation to ensure that the production process is unattended.The storage space of the eight layer cargo space frame meets the storage requirements of various plates and the return function of finished products. Welcome your inquiry about our Laser Cutting Machine.
