How to find the focus position of the laser cutting machine?

Because the laser power density has a great influence on the cutting speed, the selection of the focus position is particularly important. The spot size of the laser beam is also proportional to the length of the lens. There are three simple ways to find the cutting focus position in the industrial file:

1. Pulse method: print the laser beam on the plastic plate, move the laser head from top to bottom, check all holes, and pay attention to the minimum diameter.

2. Inclined plate method: use the inclined plate below the vertical axis, move it horizontally, and find the laser beam at the minimum focus.

3. Remove the blue spark from the nozzle, blow air, pulse on the stainless steel plate, and move the laser head from top to bottom until the blue spark is found as the focus.

At present, many manufacturers' machines have automatic focusing function. Automatic focusing can greatly improve the efficiency of the laser cutting machine and greatly reduce the perforation time on thick plates; The machine can automatically adjust according to different materials and thicknesses to find the focus position.

Answer several questions about laser cutting machine?

How many types of laser cutting machines are there? What is the difference between them?

At present, lasers used for laser processing and manufacturing mainly include CO2 lasers, YAG lasers, fiber lasers, etc. Among them, high-power CO2 laser and YAG laser have more applications in security processing. The fiber laser with fiber matrix has obvious advantages in reducing the threshold, reducing the range of oscillation wavelength and wavelength tunability, and has become a new technology in the laser industry.

What is the cutting thickness of the laser cutting machine?

At present, the cutting thickness of the laser cutting machine is less than 25 mm. Compared with other cutting methods, the laser cutting machine has obvious advantages in cutting materials less than 20 mm and requires high precision.

What is the application range of laser cutting machine?

The laser cutting machine features high speed, narrow width, good cutting quality, small heat affected area and good processing flexibility. Therefore, it is very popular in automobile manufacturing. Such as kitchen industry, sheet metal processing, advertising industry, machinery manufacturing, cabinet processing, elevator manufacturing, fitness equipment and other industries.