How To Judge The Quality Of Laser Cutting Metal?

Laser cutting machines are widely used in many industries, especially the metal processing industry. However, there is no uniform standard for the quality of laser cutting, so many people do not know how to judge the quality of laser cutting machines when they buy laser cutting machines, and they fall into blindness. For this reason, the technicians of Qingyuan came to talk to you about how to evaluate the quality of the laser cutting machine when processing metal.

        How to judge the quality of laser cutting metal? See the smooth cutting surface, few lines, and no brittle fracture.

        When laser high-temperature cutting of the sheet, the traces of the molten material will not appear in the cut below the vertical laser beam, but will be sprayed out at the rear of the laser beam. As a result, curved lines are formed on 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 the cutting process can greatly eliminate the formation of lines.

　　How to judge the quality of laser cutting metal? See the slit 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 part. This is because the cutting width determines the smaller inner warp of the contour. When the thickness of the sheet increases, the cutting width also Increase with it. 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.

　　How to judge the quality of laser cutting metal? The cutting seam has good verticality and small heat-affected area

       When the thickness of the processed material exceeds 18mm, the verticality of the cutting edge is very important; when away from the focus, the laser beam becomes divergent, and the cutting becomes wider toward the top or bottom according to 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.

　　How to judge the quality of laser cutting metal? The thermal effect of cutting material.

       As a thermal cutting processing application equipment, it will inevitably have a thermal impact on the material during use. Its manifestations mainly include three aspects, namely, the heat-affected area, depression and corrosion, and material deformation.

      The heat-affected zone refers to the area around the incision being heated during laser cutting. At the same time, the structure of the material itself changes. For example, some materials will harden. The heat-affected zone refers to the regional change in which the internal structure changes due to high temperature.

      The depression and corrosion have an adverse effect on the surface of the cutting edge and affect the appearance of the laser cutting machine. They appear in cutting errors that should generally be avoided; after cutting, the part will be deformed if the part heats up sharply.

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