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What are the Classification and Uses of Laser Cutting Machines?

Mar. 19, 2020

Classification of laser cutting machine:

1.TAG laser cutting machine

2.Fiber Laser Metal Cutting Machine

3.Enclosed Laser Cutting Machine

The characteristics of laser processing mainly include the following aspects:

1. Laser processing is available for almost all metallic and non-metallic materials.

2. The laser can be focused into a very small spot, which can be finely and precisely processed, such as the processing of fine slits and micro holes.

3. The laser beam can be sent to an isolation room or other place far away from the laser for processing.

4. No tool is required for processing, which is non-contact processing and no mechanical deformation.

5. No processing tools and special environment are needed, which is convenient for automatic control of continuous processing, high processing efficiency, small processing deformation and thermal deformation.

Enclosed Laser Cutting Machine

Enclosed Laser Cutting Machine

Laser is a kind of coherent light with high intensity, good directivity and good monochromaticity. Due to the small divergence angle and good monochromaticity of the laser, in principle, it can focus on small spots with a size close to the wavelength of the light (micron or sub-micron level), and the high intensity of the laser itself can make it The power density at the focal point reaches 107 ~ 1011W / cm2, and the temperature can reach above 10000 ℃. At such a high temperature, any material will instantly melt and vaporize sharply, and spray out explosively at high speed, while producing a highly directional impact. Therefore, the laser processing works under the effect of light and heat to generate a combination of high temperature melting and shock wave throwing.

Application of Laser Cutting Machine

With the development of modern industrial technology, there are more and more varieties of materials with high hardness and high melting point, and more and more applications, and often require small and deep holes to be made in these materials, for example, clocks or meters. Gem bearings, diamond drawing dies, spinnerets for chemical fibers, and fuel nozzles in rocket or diesel engines. This type of processing task is difficult to achieve with some conventional machining methods, and some are even impossible, while laser drilling can complete the task better.

In laser drilling, it is necessary to understand the materials and requirements for drilling in detail. In theory, the laser can punch small holes as shallow as a few micrometers and as deep as more than 20 millimeters in different positions of any material, but specific to a certain punching machine, its punching range is limited. Therefore, before punching, it is best to fully understand the punching range of the existing laser to determine whether it can punch.

The quality of laser drilling is mainly related to factors such as laser output power and irradiation time, focal length and divergence angle, focus position, energy distribution in the spot, number of irradiations, and workpiece materials. These process parameters should be reasonably selected in actual processing.

The principle of laser cutting is similar to laser drilling, but the workpiece and the laser beam must move relative to each other. In actual processing, the use of table CNC technology can successfully achieve laser NC cutting. Laser cutting mostly uses high-power CO2 lasers.

Lasers can cut both metals and non-metals. In the laser cutting process, because the laser does not produce mechanical impact and pressure on the material being cut, and the laser cutting slit is small, which is convenient for automatic control, it is commonly used in engineering practice to process glass, ceramics, various precision and small zero component. During the laser cutting process, the main factors affecting laser cutting parameters are laser power, blowing pressure, and material thickness.

The above is the classification and application of laser cutting machine introduced by Plasma Cutting Machine Manufacturer.