How To Judge The Cutting Quality Of Laser Cutting Machine

As an efficient sheet metal processing tool, fiber laser cutting machines have been widely used in various industries. When many people buy metal laser cutting machines, they don’t know how to judge the processing quality of fiber laser cutting machines. They tend to be blind and sometimes ignore more important quality standards.

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Usually we judge the quality of laser cutting through the following points:

1. Roughness

Fiber laser cutting machine is a high-quality and efficient processing tool. When the laser beam acts on the metal plate, it will form vertical lines. The deeper the lines, the rougher the cross-section surface. When the power of the cutting machine matches the thickness of the plate, the section cut by the metal laser cutting machine is smooth, streak-free, and has no brittle fracture. Roughness affects not only the appearance of the edge but also the friction characteristics. In most cases, the lower the roughness, the higher the quality of the cut.

2. Verticality

For high-power metal laser cutting, when the thickness of the processed material exceeds 10mm, the verticality of the cutting edge is very important. Away from the focus point, the laser beam becomes divergent and the cut becomes wider toward the top or bottom, depending on the location of the focus point. The cutting edge deviates from the vertical line by a few hundredths of a millimeter, and the more vertical the edge, the higher the quality of the cut.

3. Cutting width

Generally speaking, the cutting width does not affect the cutting quality, but when forming particularly precise contours inside the part, the cutting width determines the minimum inner diameter of the contour. When the thickness of the sheet increases, the cutting width also increases. Therefore, in order to ensure the same high accuracy, no matter how large the width of the cut is, the workpiece should be constant in the processing area of the laser cutting machine.

4. Burr

During the processing of metal laser cutting machines, the high energy generated by the laser beam irradiating the surface of the workpiece causes the surface of the workpiece to quickly vaporize and evaporate, and the auxiliary gas blows away the slag on the surface of the workpiece. If auxiliary gas is not used, burrs will form on the cutting surface after the slag cools. Because the removal of burrs requires extra work, the quality of cutting can be intuitively judged by observing the number of burrs.

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