Laser marking machine is a process of marking parts or workpieces with laser technology.

When the laser beam strikes the material, its energy reacts, leaving permanent traces.

The speed, power and focus of the laser beam on the part will lead to different laser processing processes.

You can use laser marking, laser etching, laser annealing or laser ablation for marking.

Selecting the correct laser technology and configuration is the key to successfully marking parts.

Therefore, to determine what you need, you must first define your application requirements.

Read on to see how these requirements can help you determine the power and process of the laser marking machine you need

All materials have absorption spectra

Most industrial laser systems emit wavelengths that cannot be seen with the naked eye, so it is difficult to imagine.

However, different materials will have different reactions to different wavelengths.

In addition, each material has a unique composition that can absorb certain wavelengths and not others.

Since lasers produce a single wavelength, they are highly specialized tools for marking very specific materials.

Therefore, different materials have different laser requirements.

How to select a suitable laser marking machine?

Optical fiber and CO2 laser systems produce different wavelengths

Various types of lasers emit different wavelengths according to their gain medium (part of the laser source).

The material you will mark will determine which type of laser marking system you need.

Optical fiber laser system is most suitable for metal marking

In fact, fiber laser systems are sometimes referred to as solid-state lasers.

They have a laser source, including a fiber, which contains rare earth metals, such as.

They produce a laser with a wavelength of about 1 micrometer (1064 nm).

Therefore, fiber laser system is most suitable for metal marking

Gas laser system is most suitable for labeling organic materials

In addition, the gas laser system has a laser source including gas.

The most widely known gas laser is the CO2 laser.

These laser marking systems can produce lasers with wavelengths ranging from 9 microns to 10.2 microns (9000-12000 nm).

Most organic compounds react well at these wavelengths.

However, in contrast to fiber laser systems, metals react poorly at these wavelengths.