The oblique plate method for focal length of a metal laser cutting machine is to use a plastic sheet at an angle to the vertical axis to horizontally pull up and minimize the laser beam of the metal laser cutting machine.

The next step is to print the method of focusing the metal laser cutting machine, which involves moving the cutting head of the metal laser cutting machine from top to bottom, polishing the laser beam on the film, and focusing on the minimum diameter.

In addition, what is more troublesome is the metal laser cutting machine focusing parallel light tube method. Although it is not a big problem, it is also the metal laser cutting machine output end with parallel light tube expansion processing, making the beam diameter larger and the divergence angle smaller, making the beam size close to the same before focusing near and far within the cutting working range. The metal laser cutting machine and Z-axis are two independent components that control the distance between the nozzle and the material surface. As the workbench or optical axis moves, the beam also moves from the near end to the far end, ensuring that the diameter of the focused beam remains consistent throughout the entire processing area.

The blue spark method is used to adjust the focus of the metal laser cutting machine. The nozzle of the cutting head of the metal laser cutting machine is removed, and the laser is blown onto the stainless steel plate to move the cutting head from top to bottom until the blue spark is the focus. The focus is calculated based on the cutting process of different plate thicknesses.

On a flying optical path machine, the size of the beam varies before focusing due to the different divergence angles and lengths of the near and far ends of the beam. The larger the diameter of the incident light, the smaller the diameter of the focusing spot. The focus adjustment of metal laser cutting machines is equivalent to improving the work efficiency of metal laser cutting machines, further improving the production efficiency of enterprises.