How to check the cutting quality of the laser cutting machine? The purchase of the laser cutting machine is not the end of the assembly for you. The manufacturer also needs to debug the laser cutting machine to ensure normal processing. This is also an inspection link, to see its cutting quality, which is the most direct way to test the quality of equipment.
For new customers, when purchasing the equipment, they will ask to see the laser cutting machine proofing first. In addition to the cutting speed of the equipment, proofing depends on the cutting quality of the sample piece. How to see the cutting quality and what should be paid attention to? The following small Austrian laser series will introduce how to inspect the cutting quality of the laser cutting machine in detail:
Laser cutting section will form vertical lines, the depth of the lines determines the roughness of the cutting surface, the shallower the lines, the smoother the cutting section. Roughness not only affects the appearance of the edge, but also affects the friction characteristics. In most cases, it is necessary to reduce the roughness as much as possible, so the shallower the grain, the higher the cutting quality.
How the thickness of sheet metal exceeds 10 mm, the perpendicularity of cutting edge is very important. Away from the focus, the laser beam becomes divergent, and the cutting is widened toward the top or bottom according to the position of the focus. 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. Only when a particularly precise contour is formed inside the part, the cutting width has an important influence. This is because the cutting width determines the minimum internal diameter of the contour. When the thickness of the plate increases, the cutting width also increases. Therefore, to ensure the same high precision, no matter how wide the incision, the workpiece should be constant in the processing area of the laser cutting machine.
When cutting thick plates at high speed, the molten metal will not appear in the incision under the vertical laser beam, but will spray out at the back of the laser beam. As a result, the curved lines are formed at the cutting edge, and the lines closely follow the moving laser beam. In order to correct this problem, reducing the feed rate at the end of cutting can greatly eliminate the lines of lines.
The formation of burr determines the quality of laser cutting a very important factor, because the removal of burr requires extra work, so the severity and the amount of burr can directly determine the quality of cutting.
If the part is heated during cutting, it will deform. This is particularly important in fine machining, where the profile and connector are usually only a few tenths of a millimeter wide. Controlling the laser power and using short laser pulse can reduce the heat of components and avoid deformation.