The Method Of Detecting The Cutting Quality Of Laser Cutting Machine

- Oct 24, 2017 -

1, cutting smooth, no stripes, no brittle fracture; metal laser cutting machine high-speed cutting thick plate, the molten metal does not appear in the vertical laser beam below the incision, but will be sprayed behind the laser beam. As a result, the curved lines are formed at the cutting edge, and the lines follow the moving laser beam. To correct this problem, the feed rate is reduced at the end of the cutting process, and the behavior of the lines can be largely eliminated.

2, the slit width is narrow, which is mainly related to the size of the laser beam spot diameter; metal laser cutting machine incision width generally does not affect the cutting quality, only in the parts inside the formation of particularly sophisticated contour, the cutting width has an important impact Because the cutting width determines the minimum internal meridian, when the plate thickness increases, the cutting width also increases. So want to ensure the same high precision, no matter how much the width of the workpiece, the workpiece in the laser cutting machine processing area should be constant.

3, the seam is very good vertical, heat affected area is small; under normal circumstances, metal laser cutting

The verticality of the cross-section is probably not the most important factor, but for high-power laser cutting, when the thickness of the machined material exceeds 10 mm, the verticality of the cutting edge is very important. Far away from the focus, the laser beam becomes divergent, depending on the position of the focus, the cutting is widened toward the top or bottom. The cutting edge deviates from the vertical line by a few millimeters, the more vertical the edge, the higher the cutting quality.

4, no material burning, no melting layer formation, no large slag; metal laser CNC cutting machine slag is mainly reflected in the deposition and section of the burr, which material deposition is due to laser cutting in the beginning of melting before the first hole in the workpiece Hit a layer of oil-containing special liquid. Gasification and various materials do not use the customer to blow out the incision, but the upward or downward discharge will also form deposition on the surface. The formation of the burrs determines a very important factor in the quality of the laser cutting, since the removal of the burrs requires additional effort, so the amount of burrs is serious and how much is able to visually determine the quality of the cutting.

5, the incision surface rough plating, the surface roughness of the size of the laser cutting surface quality is the key to measure. In fact, for metal laser cutting machine, the cutting section of the lines and roughness directly have a direct link, often cross-section lines of poor cutting performance will also lead to a higher roughness, but taking into account the two different effects in the genetic differences, In general, we analyze the quality of metal laser cutting machine processing, is still separated to do the analysis. Laser cutting section will form a vertical pattern, the depth of the groove determines the roughness of the cutting surface, the more shallow the lines, the more smooth cutting section. Roughness not only affects the appearance of the edge, but also affect the friction characteristics, in most cases, the need to minimize roughness, so the more shallow lines, the higher the quality of cutting.

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