Views: 34 Author: Site Editor Publish Time: 08-19-2021 Origin: Site
Nowadays, laser cutting machines have been widely used in our manufacturing. Compared with traditional cutting methods, laser cutting is more precise and convenient. However, the laser cutting machine sometimes slags during the working process, and the laser cutting machine always slags, which will seriously affect the quality of the cut workpiece. So, how to solve the dregs of laser cutting machine? What should be done to achieve the ideal cutting effect? Leapion laser tells you below.
The focus position is the distance from the laser focus to the surface of the workpiece, which directly affects the roughness of the cut surface, the slope and width of the slit, and the adhesion of the molten residue. If the focus position is too advanced, this will increase the heat absorbed by the lower end of the workpiece to be cut. When the cutting speed and auxiliary air pressure are constant, the material being cut and the melted material near the kerf will flow on the lower surface in a liquid state. After cooling, the melted material will adhere to the lower surface of the workpiece in a spherical shape; if the position lags behind. The heat that can be absorbed by the lower end of the cut material is reduced, so that the material in the slit cannot be completely melted, and some sharp and short residues will adhere to the lower surface of the board.
When laser cutting, the choice of cutting speed is determined according to the material and thickness of the cut sheet. Different cutting speeds will have a great impact on the quality of laser cutting. The choice of appropriate cutting speed can improve the performance of laser cutting. Efficiency and good cutting quality can be obtained.
When laser cutting, the choice of laser power has an impact on the cutting quality. The cutting power needs to be determined according to the material and thickness of the cut sheet. If the power is too large or too small, a good cutting section cannot be obtained.
1) When laser cutting, if the laser power is too small, it will be impossible to cut.
2) When the laser power is set too large, the entire cutting surface will melt, and the cutting seam will be too large, and good cutting quality will not be obtained.
3) When the laser power setting is insufficient, cutting melt stains will occur, and tumor scars will be generated on the cutting section.
4) With proper laser power setting, with proper cutting gas and pressure, good cutting quality can be obtained without melting stains.
4. Air pressure
In the laser cutting process, the auxiliary air pressure can blow off the slag during cutting and cool the heat-affected zone of the cutting. Auxiliary gases include oxygen, compressed air, nitrogen, and inert gases. For some metallic and non-metallic materials, inert gas or compressed air is generally used, which can prevent the material from burning. Such as the cutting of aluminum alloy materials. For most metal materials, active gas (such as oxygen) is used, because oxygen can oxidize the metal surface and improve cutting efficiency.
When the auxiliary air pressure is too high, eddy currents appear on the surface of the material, which weakens the ability to remove the molten material, resulting in wider slits and rough cutting surfaces; when the air pressure is too low, the molten material cannot be completely blown away, and the lower surface of the material will stick to it. Scum. Therefore, the auxiliary gas pressure should be adjusted during cutting to obtain the best cutting quality.
1. The output power of the laser cutting machine is not enough
Solution: Check whether the laser cutting machine is working properly. If it is abnormal, it needs to be repaired and maintained in time. If it is normal, check whether the output value is correct.
2. There is a deviation in the up and down position of the focus of the beam
Solution: Adjust the position of the focus and adjust it according to the offset position it produces.
3. The purity of the gas of the cutting machine is not enough
Solution: Change the gas.
4. The wire cutting speed of the cutting machine is too slow
Solution: Adjust the wire cutting speed in time.
5. The addition point of the laser beam of the cutting machine has shifted
Solution: Debug the focus and make adjustments in time.
If the laser cutting machine is operated according to the correct operation steps, there will not be too many problems, and the cutting effect should be ideal. If there are burrs and dross in the cut product, it is likely to be caused by improper operation. Find out the problem in time and share the cause in order to avoid burrs and dross.
The laser cutting machine is a very precise machine, and often a data error will cause its work to run abnormally, so it is necessary to be strict in the work and reduce errors. For more laser cutting machine questions, please contact Leapion Laser.
