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激光切割加工进度的合理掌握

2018-08-14 15:48:48 常州亿创能源科技有限公司 阅读

激光切割加工是指由于激光具有方向性好、亮度高、单色性好等特点,因此由它形成的激光束照射在材料上,能够得起到熔化、汽化、烧蚀,并形成孔洞的作用。随着光束和工件的相对运动,最终使工件形成切缝,实现工件被切割的目的。

Laser cutting means that because of the good directional, high brightness, good monochromaticity and other characteristics of the laser, the laser beam formed by it irradiates the material, can afford to melt, vaporize, ablate, and form holes. With the relative movement of the beam and the workpiece, the workpiece eventually forms a slit to achieve the purpose of cutting the workpiece.

激光汽化切割,就是利用激光束对工件进行加热,由于它的能量比较高,因此可以使温度迅速上升,材料就会开始汽化。在蒸汽喷出的同时,材料上就会有切口形成。这种切割需要很大的额功率和功率密度才能完成,多数是用到极薄金属材料和非金属材料的切割过程中。激光氧化切割,用激光作为预热热源,用氧气等活性气体作为切割气体,通过两者的共同作用之后在金属中形成切口。这过程中有大量的而热会放出,对节约能源消耗也有一定的帮助。

大发体育Laser vaporization cutting is the use of laser beam to heat the workpiece, because of its high energy, so that the temperature can rise rapidly, the material will begin to vaporize. When steam is ejected, there will be incision formation on the material. This kind of cutting requires a large amount of power and power density to complete, mostly used in the cutting process of very thin metal and non-metallic materials. Laser oxidation cutting, using laser as preheating heat source, using oxygen and other active gases as cutting gas, through the joint action of the two forms a cut in the metal. In the process, there will be a lot of heat release, which will also help to save energy consumption.

激光切割时,切割进度的合理掌握非常关键,要是切割的进度太快,那么切口的幅度就会变小,光束的照耀点就会接近,从而造成拖线、毛糙度会变大、刮渣等不良状况。但要是进度太慢的话,激光的作用时间就会变长,光斑面积、切口的幅度等都会随之变大。这样一来,由于切割进度跟不上材料消融的进度,因此也会对切割效果产生负面影响。

In laser cutting, it is very important to grasp the cutting progress reasonably. If the cutting progress is too fast, then the incision amplitude will become smaller, and the beam's illumination point will be close, resulting in towing, roughness will become larger, Scraping Slag and other adverse conditions. But if the progress is too slow, the action time of the laser will be longer, the area of the spot, the amplitude of the incision and so on will be larger. As a result, the cutting progress can not keep up with the progress of material ablation, so it will have a negative impact on the cutting effect.


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