What are the factors that affect the accuracy of the advertising word laser cutting machine?

1. The size of the laser agglomeration of the laser generator: If the spot is very small after the aggregation, the cutting precision is very high, and the gap after the cutting is also very small. This shows that the precision of the laser cutting machine is very high and the quality is very high. However, the beam emitted by the laser is tapered, so the slit is also tapered. Under this condition, the greater the thickness of the workpiece, the lower the precision, so the larger the slit.

2, the accuracy of the workbench: If the accuracy of the workbench is very high, the precision of the cutting will also be improved. Therefore, the accuracy of the workbench is also a very important factor in measuring the accuracy of the laser generator.

3. The laser beam is condensed into a cone: when cutting, the laser beam is tapered downward. If the thickness of the workpiece to be cut is very large, the cutting precision will be reduced, and the cut gap will be very large.

4, the cutting material is different: it will also affect the accuracy of the laser cutting machine. In the same situation, the precision of cutting stainless steel and cutting aluminum will be very different, the cutting precision of stainless steel will be higher, and the cut surface will be smoother.

The accuracy of the advertising word laser cutting machine will affect the cutting quality. What other factors affect it? Dema experts say the factors that affect the quality of the advertising word laser cutting machine?

1, cutting speed

When the laser power and the auxiliary gas pressure are constant, the cutting speed maintains a nonlinear inverse relationship with the slit width. As the speed increases, the slit width decreases; as the cutting speed decreases, the slit width increases. The cutting speed is parabolic with the surface roughness of the slit. As the cutting speed decreases, the surface roughness increases rapidly. When the cutting speed increases, the surface roughness improves.

2, the focus position

After determining which focal length lens to use, the relative position of the focus to the surface of the workpiece is particularly important to ensure the quality of the cut. Due to the high power density at the focus, in most cases, the focus position at the time of cutting is just at the surface of the workpiece, or slightly below the surface. Ensuring a constant relative position of the focus to the workpiece throughout the cutting process is an important condition for obtaining a stable cutting quality. Sometimes, the lens is heated due to poor cooling and causes a change in focal length, which requires timely adjustment of the focus position.

When the focus is in a better position, the slit is smaller and the efficiency is higher, and the better cutting speed can obtain better cutting results.

3. Auxiliary gas pressure

In general, auxiliary materials are required for material cutting, usually using oxygen, nitrogen, inert gas or compressed air. The use of oxygen can oxidize the metal surface and increase the cutting power; by increasing the oxygen pressure, the slit can be reduced and the molten material can be prevented from re-bonding. When cutting flammable materials, an inert gas can be used to effectively prevent the material from burning. Compressed air should be used when cutting flammable materials with metal interlayers. In a certain pressure range, increasing the pressure of the auxiliary gas can increase the cutting thickness and improve the cutting efficiency.

4, laser output power

The output power of the laser directly affects the cutting speed and quality. Only by selecting the appropriate laser output power can the laser cutting quality be guaranteed. The laser power size has a great influence on the cutting thickness, cutting speed, slit width and quality. In general, the greater the laser power, the greater the thickness of the sheet that can be cut, and the cutting speed can be increased.