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Laser engraving machine can not carve metal cause analysis

Superwave Laser Technology Co.,Ltd | Updated: May 22, 2018



Laser engraving machine is commonly used in wood products, plexiglass, glass, stone, crystal, lili, paper, double color board, alumina, leather, resin and so on. But there are problems with the engraving of the laser engraving machine. The reasons are as follows:
1. The dot matrix carvings are like high definition dot matrix printing. The laser head swings from side to side, each time carving a line consisting of a series of points, then the laser head moves up and down to carve multiple lines, and finally forms the entire image or text. Scanning graphics, text and vectorized graphics can be used in dot matrix engraving.
2. The vector cutting is different from the dot matrix sculpture, and the vector cutting is carried out on the outer contour line of the image. We usually use this pattern to cut through the wood, the acorns, paper and other materials, or to mark the surface of a variety of materials.
3. Engraving speed: the engraving speed refers to the speed of the laser head moving, usually using IPS (in inches/second) to indicate that high speed brings high productivity. The speed is also used to control the depth of the cutting, and the slower the laser intensity is, the greater the depth of cutting or carving. You can use the engraving machine panel to adjust the speed, also can use the computer printing driver to adjust. Within the range of 1% to 100%, the adjustment is 1%. The advanced motion control system of humvees can allow you to carve in high speed and still get super fine carving quality.
4. Engraving strength: the intensity of the engraving intensity refers to the intensity of the laser on the surface of the material. The greater the intensity, the greater the depth of the cutting or carving will be for a particular engraving speed. You can use the engraving machine panel to adjust the strength, also can use the computer printing driver to adjust. Within the range of 1% to 100%, the adjustment is 1%. The greater the intensity, the greater the speed. The depth of the cut is deeper.
5. Light spot size: laser beam spot size can be adjusted by lens with different focal length. Small speckle lenses are used for high resolution engraving. The large aperture lens is used for lower resolution engraving, but for vector cutting, it is the best choice. The standard configuration for the new device is a 2.0-inch lens. Its spot size is in the middle, suitable for all kinds of occasions.
Laser engraving machine generally USES CO2 laser, and the power of laser tube used now belongs to small power range. The maximum is 300W. There is less of the laser absorbed by the metal. So laser engraving machines are generally not used to carve metal.