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 Laser is an amazing operating method in the modern 

society. Many [url=http://www.laser-

cutter.com.cn/laser-machine/]Laser Machine[/url]

s like [url=http://www.laser-cutter.com.cn/laser-

machine/laser-cutting-machine/]Laser Cutting Machine

[/url] and [url=http://www.laser-cutter.com.cn/laser-

machine/laser-welding-machine/]Laser Welding Machine

[/url] are used in plenty of industries and 

companies.

Why lasers are used for cutting? Lasers are used for 

many purposes. One way they are used is for cutting 

metal plates. On mild steel, stainless steel, and 

aluminum plate, the laser cutting process is highly 

accurate, yields excellent cut quality, has a very small 

kerf width and small heat affect zone, and makes it 

possible to cut very intricate shapes and small holes.

 Most people already know that the word “LASER” is 

actually an acronym for Light Amplification by 

Stimulated Emission of Radiation. But how does light cut 

through a steel plate?

How a laser cutter works? The laser beam is a column of 

very high intensity light, of a single wavelength, or 

color. In the case of a typical CO2 laser, that 

wavelength is in the Infra-Red part of the light 

spectrum, so it is invisible to the human eye. The beam 

is only about 3/4 of an inch in diameter as it travels 

from the laser resonator, which creates the beam, 

through the machine’s beam path. It may be bounced in 

different directions by a number of mirrors, or “beam 

benders”, before it is finally focused onto the plate. 

The focused laser beam goes through the bore of a nozzle 

right before it hits the plate. Also flowing through 

that nozzle bore is a compressed gas, such as Oxygen or 

Nitrogen.