济南激光切割加工_山东激光切割加工_济南镀钛_山东不锈钢镀钛

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济南激光切割速度取决于什么?

发表时间:2017-06-27 09:28  责任编辑:大宝娱乐_大宝娱乐lg_大宝lg娱乐官网  点击:
  激光切割加工被认为是激光应用中成熟的工艺,因而近年来,人们把激光应用研究热点投入到激光焊接、热处理、标记、快速成型等方面,而对激光切割的研究则相对较少。但随着汽车工业的全面发展,以及精细切割和良好焊接性能的需求,必须进一步提高和控制切割质量。济南激光切割速度取决于什么?   Laser cutting is considered to be the most mature technology in laser application, so in recent years, the laser application research into laser welding, heat treatment, marking, rapid prototyping and so on, while the research on laser cutting is relatively small. But with the development of the automobile industry and the requirement of fine cutting and good welding performance, the quality of cutting must be further improved and controlled. What does the speed of laser cutting in Ji'nan depend on?   1、切割用激光,激光应有高的光束质量。激光切割是基于热效应的加工,为得到高的功率密度和精细切口,聚焦光斑直径要小,同时,为保证沿不同方向切割时的质量的一致性,激光束应有良好的绕光轴旋转对称性和圆偏振性以及高的发射方向稳定性,以保证聚焦光斑位置稳定不变。   1, cutting laser, laser should have high beam quality. Laser cutting processing is based on the thermal effect, in order to obtain high power density and fine incisions, focal spot diameter is smaller, at the same time, to ensure the consistency of quality cutting along different directions when the laser beam should have good rotated around the optical axis symmetry and circular polarization and direction of high stability, to ensure the focus the spot position is stable.   2、聚焦透镜与板材厚度,透镜焦距根据被切材料厚度选取,兼顾聚焦光斑直径和焦深,材料厚,焦距宜大,反之,则焦距宜小。聚焦光斑位置应靠近工件表面,一般使焦点落在板材上表面偏下约1/3板厚处。   2. Focus lens and plate thickness, lens focal length according to the thickness of the selected material, taking into account the focus diameter and focal depth, material thickness, focal length should be large, otherwise, the focal length should be small. The location of the focus spot should be close to the surface of the workpiece, so that the focus will fall on the plate, and the surface will be about 1/3 thick.   3、气流与喷嘴,激光切割机中气流具有吹除熔融材料、保护聚焦透镜甚至提供部分切割能量的作用。气体压力、流量是影响切割质量的重要因素,压力过低,吹不走切口处的熔融材料;过高,易在工件表面形成涡流,反而削弱了气流去除熔融材料的作用。   3. Airflow and nozzle. The airflow in laser cutting machine has the function of blowing the fused material, protecting the focusing lens and even providing part cutting energy. Gas pressure and flow is an important factor to influence the cutting quality of the pressure is too low, not blow molten material at the incision; high, easy to form eddy current on the workpiece surface, but weaken the flow of molten material removal function.   4、激光切割机切割速度,切割速度取决于激光的功率密度和被切材料的热物理性质及其厚度等。对于切割条件下,有一合理的切割速度范围,切割速度过高,切口清渣不尽,甚至切不透,切割速度太低,则材料过烧,切口宽度和热影响区大。   4 laser cutting machine cutting speed, cutting speed depends on the power density of the laser and the thermal properties of the material and its thickness and so on. For a certain cutting conditions, there is a reasonable range of cutting speed, cutting speed is too high, the incision cleaning slag is endless, and even cut through, the cutting speed is too low, then the material burns, kerf width and heat affected zone.
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