Metal laser cutting machine is realized by using high power density energy generated after laser focusing. It adopts a precision ball screw transmission mechanism, optimizes the control of the CNC system, can meet the processing of precision parts, and has stable dynamic performance and can work for a long time. Therefore, it has attracted much attention in metal cutting. The cutting accuracy of metal can affect the cutting process, so how to control the cutting accuracy of metal laser cutting machine in use?
1. Laser melting cutting does not need to completely vaporize the metal, and the energy required is only 1 / 10 of that of vaporization cutting.
2. The vaporization heat of laser vaporization cutting materials is generally large, so the laser vaporization cutting requires a large power and power density.
3. The laser oxygen cutting reaction generates a large amount of heat, so the energy required for laser oxygen cutting is only 1 / 2 of that for melting cutting, and the cutting speed is far greater than that for laser vaporization cutting and melting cutting.
4. Laser scribing and controlled fracture
Laser scribing is to use high energy density laser to scan the surface of brittle material, so that the material is heated and evaporated into a small groove, and then apply a certain pressure, the brittle material will crack along the small groove.
Controlled fracture is to use the steep temperature distribution generated by Laser Grooving to generate local thermal stress in brittle materials and break the materials along small grooves.
Compared with traditional plate processing methods, laser cutting has the advantages of high cutting quality (narrow cut width, small heat affected zone, smooth cut), high cutting speed, high flexibility (arbitrary shape can be cut at will), and wide material adaptability.