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Laser cutting machines are divided into several categories according to technology

Date of publication :2023-10-14     Views : 205

1. Vaporization cutting.

Under the heating of a high-power-density laser beam, the surface temperature of the material rises to the boiling point temperature so fast that it is enough to avoid melting caused by heat conduction, so part of the material vaporizes into steam and disappears, and part of the material is ejected from the bottom of the slit as an ejection. Auxiliary gas flow blows away.

2. Melting cutting.

When the power density of the incident laser beam exceeds a certain value, the interior of the material at the beam irradiation point begins to evaporate, forming holes. Once such a hole is formed, it will act as a black body and absorb all the incident beam energy. The small hole is surrounded by a wall of molten metal, and an auxiliary air stream coaxial with the beam carries away the molten material around the hole. As the workpiece moves, the small hole moves synchronously in the cutting direction to form a cutting slit. The laser beam continues to shine along the leading edge of this slit, and the molten material is continuously or pulsatingly blown away from the slit.

3. Oxidation melting cutting.

Melting cutting generally uses inert gas. If it is replaced by oxygen or other active gas, the material will be ignited under the irradiation of the laser beam, and a violent chemical reaction will occur with the oxygen to generate another heat source, which is called oxidation fusion cutting.

4. Control fracture cutting.

For brittle materials that are easily damaged by heat, high-speed, controllable cutting through laser beam heating is called controlled fracture cutting. The main content of this cutting process is: the laser beam heats a small area of brittle material, causing a large thermal gradient and severe mechanical deformation in the area, resulting in the formation of cracks in the material. As long as a uniform heating gradient is maintained, the laser beam can guide crack creation in any desired direction.

Shenzhen Damei Laser Equipment Co., Ltd. is a national high-tech enterprise. Founded in April 2011, it is located in the Shenzhen Special Economic Zone, Guangdong Province. It has production bases and after-sales service online stores in major cities across the country such as Huizhou, Suzhou, and Zhengzhou. Our company specializes in the manufacturing and sales of laser marking machines, laser welding machines, precision metal cutting machines, FPC laser cutting machines and other laser equipment, and provides customers with a series of automation technology solutions. Damei Laser takes "leading technology" as its core concept.


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