Why do Lasers engrave?

I learned the material, said the laser beam micro-processing, as far as the mechanical aspect is not very clear
Laser beam micro-processing is the use of optical system, the laser focused on the diameter of only a few to dozens of microns of the beam to the surface of the processed material, so that it is partially melted and evaporated under the action of high-energy laser beam, forming a specific hole or trench, the specific shape determines the processing of the laser beam parameters, processing methods and material characteristics

Micro laser engraving machine

How it works: Lasers are light that, like the electroluminescence of nature, is produced by the leap of atoms ( or ion zithers) and is caused by spontaneous radiation. ) Although the laser is light, but it is obviously different from ordinary light is that the laser only in the initial very short period of time depends on spontaneous radiation, after the process is entirely determined by the radiation, so the laser has a very pure color, almost no divergence direction.

Engraving machine, very high luminous intensity, laser at the same time has a high coherence, high strength, high ( direction, laser through the laser generation by the mirror transmission and through the aggregate mirror to the processing object, so that the processing object ) by a strong heat and temperature increased sharply, so that the point due to high temperature and rapid melting or vaporization, with the laser head trajectory to achieve the purpose of processing.

Glass laser engraving machine

The speed at which the laser head moves, usually expressed in IPS(inches / second), results in high productivity. Speed is also used to control the depth of the cut, and for a specific laser intensity, the slower the speed, the greater the depth of the cut or engraving. Speed can be adjusted using the engraving machine panel, or the computer's print driver can be used to adjust.

In the range of 1% to 100%, the adjustment is 1%. Hummer's advanced motion control system allows you to still get ultra-fine engraving quality when sculpting at high speeds. For a specific engraving speed, the greater the intensity, the greater the depth of the cut or engraving. The strength can be adjusted using the engraving machine panel, or the computer's print driver can be used to adjust.