The quality of laser cutting machine mainly depends on its cutting quality, which is the most direct way to check the quality of laser cutting machine equipment. For new customers, when purchasing equipment, they will ask to check the laser cutting machine proofing first. In addition to the cutting speed of the equipment, proofing also depends on the cutting quality of the sample. So how to judge the cutting quality of the laser cutting machine? Which aspects should be paid attention to? The following big picture laser will provide you with a detailed introduction:

How to judge the cutting quality of laser cutting machine? The following nine standards are indispensable:

1. Roughness: The laser cut part will form a vertical line, and the depth of the line determines the roughness of the cut surface. The lighter the lines, the smoother the cut surface. Roughness not only affects the appearance of the edges, but also affects the friction characteristics. In most cases, it is necessary to minimize the roughness, so the shallower the grain, the higher the cut quality.

2. Verticality: If the thickness of the sheet metal exceeds 10mm, the verticality of the cutting edge is very important. When away from the focus, the laser beam becomes divergent, and the cut will widen toward the top or bottom depending on the position of the focus. The cutting edge deviates from the vertical line by a few hundredths of a millimeter. The more vertical the edge, the higher the cutting quality.

3. Cutting width: Generally speaking, the cutting width will not affect the cutting quality. The cutting width plays an important role only when a particularly precise contour is formed inside the part. This is because the cutting width determines the minimum internal warpage of the profile. When the thickness of the sheet increases, the cutting width will increase accordingly. Therefore, in order to ensure the same high accuracy, the processing area of the laser cutting machine should be kept constant regardless of the cutting width.

4. Grain: When cutting thick plates at high speed, the molten metal will not appear in the cut below the vertical laser beam, but will be ejected at the back of the laser beam. As a result, a curve is formed on the cutting edge, and the curve closely follows the moving laser beam. To correct this problem, reducing the feed rate at the end of the cutting process can greatly eliminate the formation of lines.

5. Burr: When the burr is formed, the cutting quality of the laser cutting machine is a very important factor. Because the removal of burrs requires extra work, the severity and amount of burrs can be intuitively judged on the quality of the laser cutting machine.

6. Material deposition: Before the laser cutting machine starts to melt and perforate, a layer of special oily liquid is encountered on the surface of the workpiece. During the cutting process, due to gasification and no use of various materials, the customer uses wind to remove the incision, but upward Or downward discharge will also form deposits on the surface.

Seven, dent and corrosion: dent and corrosion will adversely affect the surface of the cutting edge and affect the appearance. They appear in cutting errors that should normally be avoided.

8. Heat-affected area: In laser cutting, the area near the incision is heated. At the same time, the structure of the metal changes. For example, certain metals will harden. The heat-affected zone refers to the depth of the area where the internal structure changes.

Nine. Deformation: If the laser cutting machine cuts and heats the part sharply, it will deform; this is especially important for fine processing, because the contours and connections here are usually only a few tenths of a millimeter in width; control the laser power and use short Laser pulses can reduce parts heating and avoid deformation.