Wood Plywood CO2 Laser Engraving Machine

Wood laser engraving machine is generally used for cutting and engraving of wood processing. The laser engraving of wood materials can be divided into three types: cutting engraving, concave mould engraving and convex mould engraving. The material removal principle of laser engraving is the same as that of laser cutting. Multiple uncut slots are connected together to form an area of material removal. The cross section of the laser grooving is "V" shape, the lower the cutting speed, the greater the laser current, the greater the width and depth of the grooving, in which the cutting speed and laser current affect the grooving depth more than the grooving width Much more.

The basic principle of laser engraving of wood materials is basically the same as that of laser cutting. They use high-energy-density laser beams to convert into thermal energy, which causes thermal decomposition and carbonization of wood in an instant, thereby removing part of the material. Laser cutting is to separate different parts of wood materials (mainly plates), and laser engraving is to process the required patterns, patterns and characters on the surface of wood materials. For the same wood board, the energy required for laser cutting is relatively large, and the laser engraving requires relatively little energy because it does not need to cut through the workpiece. Laser engraving is a non-contact processing method. Compared with traditional machining methods, it has the advantages of no wood chip pollution, no tool wear, no need to change tools, and no noise pollution (noise is very low). The focusing lens of the laser cutting head focuses the laser to a very small spot with a diameter of generally 0.1 to 0.5 mm. The focus of the laser beam is located near the surface to be processed to melt or vaporize the processed material. At the same time, the air flow coaxial with the beam is ejected from the cutting head, blowing the melted or vaporized material from the bottom of the cut.