As an efficient sheet metal processing tool, metal laser cutting machine has been widely used in all walks of life. When many people buy metal laser cutting machines, they don't know how to judge the processing quality of metal laser cutting machines. They tend to be blind and sometimes ignore the more important quality standards.
Generally, we judge the cutting quality and product reliability of the whole machine through the following points:
1. Roughness
Metal 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, without stripes and brittle fracture. Roughness affects not only the appearance of edges, but also the friction characteristics. In most cases, the lower the roughness, the higher the cutting quality.
2. Verticality
For high-power metal laser cutting, when the thickness of the processed material exceeds 10mm, the perpendicularity of the cutting edge is very important. When away from the focus, the laser beam becomes divergent, and the cutting becomes wider towards the top or bottom according to the position of the focus. The cutting edge deviates from the vertical line by a few percent. The more vertical the edge is, the higher the cutting quality is.
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 minimum inner diameter of the contour. When the thickness of the plate increases, the cutting width also increases. Therefore, in order to ensure the same high precision, no matter how wide the notch is, the workpiece should be constant in the processing area of the laser cutting machine.
4. Burr
In the processing process of metal laser cutting machine, the high energy generated by laser beam irradiating the workpiece surface makes the workpiece surface vaporize rapidly and evaporate, and the slag on the workpiece surface is blown off by auxiliary gas. If auxiliary gas is not used, burr will be formed on the cutting surface after the slag is cooled. Because the removal of burrs requires additional work, the cutting quality can be directly judged by observing the number of burrs.