Laser cutting technology is widely used in metal and non-metallic materials processing, which can greatly reduce processing time, reduce processing costs and improve the quality of workpieces. The modern laser has become the "sword" that people are imaginary to pursue. Taking Jinyun laser CO2 laser cutting machine as an example, the whole system is composed of control system, motion system, optical system, water cooling system, smoke exhausting and blowing protection system. It adopts the most advanced numerical control mode to realize the equal energy cutting with multi axis linkage and laser without the influence of speed. It supports DXP, PLT, CNC and other graphic formats at the same time. The interface graphics processing ability is enhanced, and the imported servo motor and transmission guide structure with superior performance are used to achieve good motion accuracy under high speed condition.
Laser cutting is realized by high-power density energy generated by laser focusing. Under the control of a computer, the laser is discharged by pulse to output a controlled repetition of high frequency pulse laser to form a certain frequency, a certain pulse width of the beam. The pulse laser beam passes through the light path and reflected and focuses on the surface of the machined object through the focus lens group, forming one fine and high energy. The spot is located near the surface to be processed and melted or vaporized instantly. Every high energy
激光脉冲瞬间就把物体表面溅射出一个细小的孔，在计算机控制下，激光切割加工头与被加工材料按预先绘好的图形进行连续相对运动打点，这样就会把物体加工成想要的形状。切割时,一股与光束同轴气流由切割头喷出，将熔化或气化的材料由切口的底部吹出(注：如果吹出的气体和被切割材料产生热效反应,则此反应将提供切割所需的附加能源；气流还有冷却已切割面，减少热影响区和保证聚焦镜不受污染的作用)。与传统的板材加工方法相比,激光切割其具有高的切割质量(切口宽度窄、热影响区小、切口光洁) 、高的切割速度、高的柔性(可随意切割任意形状) 、广泛的材料适应性等优点。
The laser pulse instantly spattered a small hole in the surface of the object. Under the control of the computer, the laser cutting head and the processed material are continuously moving and hitting the point drawn according to the pre drawn graphics, which will process the object into the desired shape. At the time of cutting, a strand of coaxial air flow with a beam of beam is ejected from the cutting head, which is blown out of the cut at the bottom of the cut (Note: if the gas and the cut material produced by the blow produces a thermal response, the reaction will provide the additional energy needed for the cutting, and the air flow and the cut surface to reduce the heat affected zone and to ensure that the focusing mirror is not. " The effect of pollution). Compared with the traditional method of plate processing, laser cutting has the advantages of high cutting quality (narrow cut width, small heat impact zone, smooth cut), high cutting speed, high flexibility (arbitrary shape cutting at will), and extensive material adaptability.
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