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All you need know about how to investigate the cutting quality of laser cutting machines?

The quality of the laser cutting machine mainly depends on its cutting quality, which is the most direct way to check the quality of the equipment. For new customers, when purchasing equipment, they will ask to see the laser cutting machine proofing first. In addition to the cutting speed of the equipment, the proofing depends on the cutting quality of the sample. Then how to look at the cutting quality and what aspects should be paid attention to? Let’s give you a detailed introduction.


01 Burr


The formation of burrs is a very important factor that determines the quality of laser cutting. Because the removal of burrs requires extra work, the severity and amount of burrs can be intuitively judged on the quality of cutting.


02 Verticality


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


03 Cutting width


Generally speaking, the cutting width does not affect the cutting quality. The cutting width has an important effect only when a particularly precise contour is formed inside the workpiece. This is because the cutting width determines the minimum inner diameter of the contour. When the thickness of the sheet increases, the cutting width also changes. Therefore, in order to ensure the same high accuracy, no matter how large the width of the incision is, the processing area of the workpiece in the laser cutting machine should be constant.


04 Cutting corners are burnt


Whether the particularly thin corners are accurate during the cutting process and whether the overburning phenomenon is serious can also be seen in the quality of the laser cutting machine.


05 Heat Affected Zone


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


06 Deformation


If the cutting heats up the workpiece sharply, it will deform. This is particularly important in fine machining, because the contours and connecting pieces here are usually only a few tenths of a millimeter wide.