How to control the focus of a laser cutting machine

Controlling the focus in laser cutting usually involves the following steps:

 

1. Adjusting the laser beam: Firstly, it is necessary to adjust the output power and wavelength of the laser to ensure that the quality and intensity of the laser beam are suitable for cutting materials.

2. Focusing lens: Use a focusing lens to focus the laser beam into a very small point, which is the focal point for cutting.

3. Automatic focusing system: Modern laser cutting machines are usually equipped with an automatic focusing system that can monitor and adjust the focus position in real time to maintain precise focusing of the laser beam, even if the material surface is uneven or the thickness changes.

4. Focus position control: Through a computer control system, the focus position of the laser beam can be accurately controlled to ensure that the focus is always at the center of the cutting path, thereby achieving high-quality cutting.

5. Focus monitoring: Using cameras and software, the focus position of the laser beam can be monitored to ensure that the focus is always in the optimal position, in order to avoid focus drift and reduced cutting quality.