In modern society, the use of lasers is becoming more and more common, bringing about earth-shaking changes in modern life. There is still no uniform standard for the quality evaluation of laser cutting. According to the consultation of many cutting machine operators, the following metrics summarized.

1.Roughness. The laser cutting section will form a vertical grain. The depth of the grain determines the roughness of the cutting surface. The shallower the grain, the smoother the section will be.

2.Verticality. Whether the edge angle of the slit is vertical and the slope is too large.

3.Cutting width. The width of the cut generally does not affect the quality of the cut. The cut width has an important effect only when a particularly precise profile formed inside the part. This is because the cut width determines the minimum inner diameter of the profile. As the thickness of the sheet increases, the cut width also Increase.

4.Grain. When cutting a thick plate at a high speed, the molten metal does not appear in the slit below the vertical laser beam, but instead ejected at the back of the laser beam. As a result, the curved lines formed at the cutting edges, and the lines closely follow the moving laser beam. To correct this problem, the feed rate lowered at the end of the cutting process, and the stroke of the lines can greatly eliminate.

5.Depression and corrosion. The depressions and corrosion have an adverse effect on the surface of the cutting edge, affecting the appearance. They appear in the cutting error that should generally be avoided.