After a long time of use, the precision of the cutting machine may decrease and the error will increase. It will affect the processed products quality and not conducive to the production of the enterprise. So it’s important to know how to adjust when the error occurs.
The laser output power is not up to standard
When the laser cutting machine is running and debugging, it is necessary to ensure that the laser output power reaches the standard. Generally, the higher the laser output power, the better the quality of the cutting on the same thickness of the plate.
The thickness of the cutting material exceeds the standard
For example, a fiber laser cutting machine can cut carbon steel plates up to 20mm thick. But now to cut a 25mm carbon steel plate, even if it can be cut through, there will definitely be errors or dross at the bottom. Therefore, before cutting, you need to determine the thickness of the plate and the thickness that the equipment can actually cut. The quality accuracy beyond the cutting range cannot be guaranteed.
There are geometric errors in the product itself
For example, the processed product itself is uneven or has small particles on the surface. The fiber laser cutting machine defaults to the flat sheet cutting data during the cutting process. If the surface of the product is uneven, different areas may be unevenly heated when cutting, the thin plate surface will overheat and melt, and the thick plate surface may not be able to penetrate. Moreover, due to the uneven surface, the laser focus randomly changes with the position of the surface of the processed object. So try to choose a cutting material with a flat surface.
The focus position is not accurate
In the cutting process of the fiber laser cutting machine, the error of the focus position will also cause errors during cutting. Many factors will change the relative position of the focal point and the product surface, which will also affect the accuracy of the processed product. We can use some debugging paper and workpiece waste to point out the accuracy of the focal position. Move the position of the upper and lower laser head height, the laser spot size will have different size changes when it is shot. Make adjustments to different positions several times to find the smallest spot position to determine the focal length and the best position of the laser head.
Processing speed
The cutting speed of the laser cutting machine directly affects the processing accuracy. Therefore, it is also necessary to achieve the best match between the cutting speed and the material before running.
