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Laser cutting machine is a kind of highly intelligent and mechanical cutting equipment, which has the advantages of high precision and small pollution. It replaces the traditional cutting side
Method, become one of the main cutting and material preparation equipment. But the cutting speed of laser cutting machine has been a topic that many enterprises pay attention to. Next, the editor will explain the factors that affect the cutting speed of the cutting machine, the influence of the speed on the cutting quality and how to improve the cutting speed of the laser cutting machine.
For the given Aurora power density and material, the cutting speed is in accordance with the empirical formula. As long as it is higher than the pass threshold, the cutting speed and laser power of the material density is proportional, and the cutting speed can be improved by increasing the power density. The cutting speed is inversely proportional to the density (specific gravity) and thickness of the material being cut.
PS: the power density here is not only related to the output power of laser, but also to the beam quality mode. In addition, the characteristics of the beam focusing system, namely
The size of spot after focusing has a great influence on laser cutting.
1. when the cutting speed is too low, because the cutting place is the anode of plasma arc, in order to maintain the stability of the arc itself, the anode point or anode area must
A place to conduct current near the cutting joint nearest to the arc must be found, and more heat will be transferred to the radial direction of the jet, so that the edge of the cut is wide. cut
The molten materials at both sides of the mouth gather and solidify at the bottom to form the hanging slag which is difficult to clean. The upper edge of the incision is over melted by heating and forming a fillet.
2. the cutting speed can be improved properly, that is, the cut is slightly narrow, the surface of the incision is smoother and the deformation can be reduced.
3. too fast cutting speed, resulting in cutting line energy lower than the required value, and the jet can not blow the molten cutting melt in the cutting seam immediately, resulting in a large amount of resistance. As the slag is hung in the cut, the surface quality of the cut decreases.
1. increase power (in a certain range, such as 500-2000w);
2. improve beam mode (from high price mode to low mode to TEM00);
3. reduce the focal spot size (for example, focusing with a short focal lens);
4. cut materials with low initial evaporation energy (such as plastic, plexiglass, etc.); Cutting low density materials (such as Pinus albicans, etc.); Cut thin material.
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