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Working principle of laser machine
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Working principle of laser machine

Views:21     Author:Site Editor     Publish Time: 2019-02-16      Origin:Site

About laser machine works


A laser is a kind of light that, like other natural light, is produced by the transition of atoms (molecules or ions, etc.). However, unlike normal light, the laser relies on spontaneous emission only in the initial very short time. The subsequent process is completely determined by the excitation radiation. Therefore, the laser has a very pure color, almost no divergent directionality, and extremely high luminous intensity. And high coherence.


未标题-3_副本

Laser cutting is achieved by applying high power density energy generated by laser focusing. Under the control of the computer, the laser is discharged by pulse, thereby outputting a controlled repeated high-frequency pulsed laser to form a beam of a certain frequency and a certain pulse width, and the pulsed laser beam is transmitted and reflected through the optical path and focused by the focusing lens group. On the surface of the processed object, a subtle, high-energy-density spot is formed, and the focal spot is located near the surface to be processed to melt or vaporize the material to be processed at an instant high temperature. Each high-energy laser pulse instantly sputters a small hole in the surface of the object. Under computer control, the laser processing head and the material to be processed are continuously moved relative to each other according to the pre-drawn pattern, so that the object is processed into The shape you want.


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

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