What is the reason why the die-cutting machine sometimes cannot cut continuously?

 During the cutting process of laser cutting machine, the pressure of the auxiliary gas has a great influence on the cutting result. The auxiliary gas of laser cutting must provide sufficient pressure to completely cut the workpiece. Generally, when cutting thicker workpieces, the pressure needs to be reduced because the residue attached to the workpiece may damage the edge of the laser cutting.

This density gradient will cause a change in the refractive index at the scene, which will cause the focusing of the energy of the dry beam, resulting in refocusing or beam divergence. It will interfere with and affect the efficiency of the workpiece melting, and sometimes change the pattern of the structure, resulting in a decrease in the quality of the laser cutting result. In addition, if the light spot is too large, it will also cause ineffective cutting because the energy is not focused enough.

During the period when we use the laser cutting machine, if we want to cut the workpiece accurately, however, the uneven workbench and other reasons will also affect the accuracy of laser cutting. We must first understand what aspects will affect the cutting accuracy.

When the laser beam is constantly gathered together, it will continue to become smaller. At this time, the accuracy of laser cutting will also become higher and higher, especially when cutting the surface. The spot of the laser die-cutting machine can reach 0.01mm. The size of the spot is one of the important factors affecting the cutting accuracy of the laser cutting machine.

Of course, in terms of material selection, different materials are suitable for laser cutting with different accuracy. Even for workpieces of the same material, there will be some deviations due to different batches of materials and different material compositions.