How to identify the cutting quality problem of metal laser cutting machine

As an efficient sheet metal processing tool, metal laser cutting machines have been widely used in all walks of life. Many people do not know how to judge the processing quality of a metal laser cutting machine when buying a metal laser cutting machine. They are often blind, sometimes ignoring the more important quality standards.

Generally speaking, we judge the cutting quality and reliability of the whole machine through the following points:

1 Roughness

Metal laser cutting machine is a high-quality, high-efficiency processing tool. When the laser beam acts on the metal plate, it will form a vertical line. The deeper the line, the rougher the surface. When the power of the cutting machine matches the thickness of the board, the cutting part of the metal laser cutting machine is smooth, without streaks and brittle fractures. Roughness not only affects the appearance of the edges, but also affects the friction characteristics. In most cases, the lower the roughness, the higher the cut quality.

2 Verticality

For high-power metal laser cutting, when the thickness of the processed material exceeds 10 mm, the verticality of the blade is very important. Far away from the focus, the laser beam becomes divergent, and the cutting is enlarged to the top or bottom according to the focus position. The more vertical the edge, the higher the cut quality.

3 Cutting width

Generally speaking, the cutting width does not affect the cutting quality, but when a particularly precise contour is formed inside the part, the cutting width determines the contour The smallest inner diameter. When the thickness of the thin plate increases, the cutting width also increases. Therefore, in order to ensure the same high precision, no matter how large the width of the cut, the parts in the laser cutting machine processing area should be constant.

4 Burr

In the process of metal laser cutting machine, the high energy generated by the laser beam irradiating the surface of the worktable makes the surface of the work piece evaporate quickly, and the auxiliary gas is removed from the slag on the surface of the worktable. Blow up. If no auxiliary gas is used, burrs will form on the cut surface after the slag cools. Since burr removal requires extra work, the quality of the cut can be judged by observing the number of burrs.

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