How does the 355nm UV laser achieve marking

Set the pattern on the PC and click start

I saw the dazzling light quickly sweeping across the surface of the material

A trail of white smoke rises quickly

after a brief squeak

The preset pattern comes out

This is laser marking, it's so amazing

In fact, laser marking is commonly seen in daily life

So here comes the question: what is laser marking?

Laser marking is a laser beam with high energy density

Irradiate local surfaces of materials

chemical reaction that vaporizes or changes color

A marking method that leaves a permanent mark

355nm UV nanosecond laser has to be mentioned

It has short wavelength and high single photon energy, which can directly break the molecular bonds of materials.

It has a high material absorption rate and is suitable for most materials

The heat effect of the marking process is small, which can be regarded as "cold" processing

No burning, no carbonization, no melting

Its pulse width is small, only about 25ns, HAZ is small

A friendly choice for heat-sensitive materials and thin, hard, and brittle materials

355nm ultraviolet light is easy to focus, supplemented by excellent beam quality (M2<1.2),

Focus spot diameter micron level (10-20um)

The width of the marking line is narrow, the contrast is high, the resolution is high, and the color value is high

Anti-wear and scratch, not easy to fall off, no blur

When you touch it, you won't feel the material being peeled off

At the same time, it also enables product identification to be anti-counterfeiting and traceable

How can you not love such an excellent laser?