Solution To The Problem Of Burnt Spots On The Protective Mirror Under The Laser Cutting Head

In the laser cutting process, burnt spots on the protective mirror is a common problem, which may affect the cutting quality and may even lead to equipment damage. Below we will discuss the causes of this problem and the corresponding solution strategies.

Reason 1: Too much negative focus at the focal point of the ring hole

When the focal point of the rim hole has too much negative focus, the cutting process may back-stick to the surface of the protective mirror, resulting in burnt spots. In order to solve this problem, it is recommended to raise the focal point of the aperture. This will prevent the surface of the protective mirror from being directly affected by heat and reduce the generation of burnt spots.

Reason 2: Too small blowing delay

If the blowing delay is set too small, it may cause the bottom gas to come out first during the laser cutting process, which in turn leads to burnt spots on the protective mirror. To solve this problem, it is recommended to set the appropriate open air delay, hand point open air delay, air change delay in the global parameters, which can effectively avoid the bottom gas discharged prematurely, reducing the generation of burnt spots.

Reason three: no perforation process

For the cutting of plates with a thickness of more than one millimeter, if the perforation process is not used, it may also produce burnt spots on the protective mirror. In order to solve this problem, it is recommended to increase the perforation process when cutting plates of this thickness, which can effectively avoid the generation of burnt spots.

Reason 4: Inappropriate perforation energy

If the piercing energy is not set appropriately, or the piercing time is too extreme, it may lead to burst holes during the piercing process, thus forming burnt spots on the protective mirror. To solve this problem, it is recommended to reduce the perforation ratio and increase the effective perforation time at the same time. This will avoid the generation of burst holes and reduce the burnt spots on the protective mirror.

These are some of the possible causes and solutions to the problem of burnt spots on the protective mirror under the laser cutting head. We hope that this information can help you reduce the generation of burnt spots in the actual cutting process and improve the cutting quality, as well as protect the equipment and prolong its service life.