The cutting effect of the automatic fiber cutting machine is determined by the laser energy

The optical system of the group of automatic fiber cutting machine optical system includes YAG laser, total mirror, half mirror, beam expander lens group, and focus cutting head assembly. The laser has energy density, and the actual cutting effect is determined by the laser energy density acting on the surface of the workpiece. In order to be able to perform laser cutting well, the energy density of the laser must be further increased. There are two methods: one is to increase the laser output power of the laser, the other is to further narrow the laser beam emitted by the laser or adjust the laser beam pattern. This requires an optical system to focus the cutting head assembly beam expander as shown in the figure below Half mirror YAG laser full mirror laser collimator machine picture: open and closed machine part control panel tooling fixture diagram machine performance laser: lamp pumped xenon lamp output laser power: 50/200W) overall size: 2200× 1500×1500mm laser power supply: 380VAC working frequency: adjustable within 255HZ output power: 20~50W (50W as standard) laser wavelength: 1064nm suitable for stainless steel, ordinary carbon steel, aluminum plate, brass and other metal thin plate cutting file format supports PLT, DXF and other graphic files Machine power: 16kw Cutting range: 350×350mm Group automatic fiber cutting machine Greater speed: 25mm/s Group automatic fiber cutting machine Minimum line width: 0.2mm X-axis travel: 350mm Y-axis travel: 350mm Repeat positioning accuracy: 0.02mm Table load-bearing: 250KG Machine structure: One-piece structure 2. Cutting process introduction The process of the automatic fiber cutting machine is a laser beam with a wavelength of 1064nm, which is expanded and focused on the processed object through a focusing lens group. On the surface of the object, a small, high-energy-density light spot is formed to act on the surface of the object.

Taiwan group automatic optical fiber cutting machine melts and evaporates metal materials through high-energy light spots, and takes away molten slag or combustion-supporting gas through high-pressure protective gas (N2) extrusion ( O2) Combustion enhances the instantaneous melting energy at the point of action, and improves the laser processing capability. Process classification of the automatic fiber cutting machine: vaporization cutting, oxygen-free melting cutting, oxygen-assisted melting cutting, controlled fracture cutting, such as femtosecond automatic fiber cutting The materials are vaporized cutting, or continuous group automatic fiber cutting machine, some materials with low vaporization temperature such as wood, carbon and some plastics. Vaporization cutting: When the power density of the laser focused on the surface of the material is very high, the temperature of the surface of the material rises extremely fast compared with the heat conduction, and it directly reaches the vaporization temperature without melting. Oxygen-free melting and cutting of materials for the group of automatic fiber optic cutting machines, if the auxiliary gas blown is an inert gas, the melted material will not come into contact with oxygen in the air, and no chemical reaction will occur. It is called anaerobic melting cutting. Therefore, under the same conditions, the laser energy required for oxygen-free melting and cutting will be higher than that of oxygen-assisted melting and cutting.