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Principle of laser Cutting machine
Nov 13, 2017

A laser is a light that, like other natural lights, is produced by the transition of atoms (molecules or ions). But it is different from ordinary light is the laser only in the initial very short time depends on spontaneous radiation, after the process is completely determined by the radiation, so the laser has a very pure color, almost no divergence of directionality, very high luminous intensity and high coherence.

Laser cutting is achieved by using high power density energy generated by laser focusing. Under the control of the computer, the laser discharges by pulse, thus outputting the controlled repetitive high frequency pulse laser, forming a certain frequency, a certain pulse-width beam, the pulsed laser beam passes through the light path and the reflection and focuses on the processing object's surface through the focus lens group, forms each small, the high energy density spot, The focal spot is located near the machined surface to melt or vaporize the processed material in a flash of heat. Each high-energy laser pulse instantly sputtered a small hole in the surface of the object, and under the control of the computer, the laser processing head and the processed material are continuously relative to each other in a predetermined shape so that the object is processed into the desired form.

The process parameters (cutting speed, laser power, gas pressure, etc.) and motion trajectory are controlled by the numerical control system, and the slag in the slit is blown by a certain pressure auxiliary gas.


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