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Working Principle of Laser Marking Machine

Working Principle of Laser Marking Machine

  • Categories:Industry News
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  • Time of issue:2022-07-22 19:05
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Working Principle of Laser Marking Machine

(Summary description)Laser marking machines use laser beams to make permanent marks on the surface of various substances. The marking effect is achieved by the evaporation of surface substances, which exposes the deeper substances, thus engraving beautiful patterns, trademarks and texts. Laser marking machine is mainly divided into CO2 laser marking machine, semiconductor laser marking machine, fiber laser marking machine and YAG laser marking machine. At present, laser marking machine is mainly used in some occasions which require more precision and accuracy.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-07-22 19:05
  • Views:0
Information

Laser marking machines use laser beams to make permanent marks on the surface of various substances. The marking effect is achieved by the evaporation of surface substances, which exposes the deeper substances, thus engraving beautiful patterns, trademarks and texts. Laser marking machine is mainly divided into CO2 laser marking machine, semiconductor laser marking machine, fiber laser marking machine and YAG laser marking machine. At present, laser marking machine is mainly used in some occasions which require more precision and accuracy. It is used for electronic components, integrated circuits (ic), electrical appliances, cell phone communication, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry, auto parts, plastic keys, construction materials, PVC pipes.

What is the principle of laser marking machine?

Laser marking is the permanent marking of the surface of various substances with a laser beam. The marking works by either 'engraving' the marks through the evaporation of surface material, which exposes the deeper material, or by chemical and physical changes in the surface material caused by the light energy, or by burning off parts of the material by the light energy to reveal the patterns and text to be etched.

"Thermal processing" is a high energy density laser beam (it is a concentrated stream of energy) that is directed at the surface of the material being processed. The surface of the material absorbs the laser energy, creating a thermal excitation process in the irradiated area, which causes an increase in the temperature of the material surface (or coating), resulting in anomalies, melting, ablation, evaporation, and other phenomena.

 

激光打标机的工作原理

 

The "cold processing" of (ultraviolet) photons with high loading energy can break the chemical bonds in the material (especially in organic materials) or in the surrounding medium, so that the material is damaged by non-thermal processes. This cold processing has a special significance in laser marking because it is not thermal ablation, but rather cold peeling without 'thermal damage' as a side effect, breaking chemical bonds, so that it does not heat or thermally deform the inner layer of the processed surface and the surrounding area. For example, in the electronics industry, excimer lasers are used to deposit chemical films on substrate materials and to cut narrow grooves in semiconductor substrates.

CO2 laser marking machine that is CO2 laser marking machine (CO2 is carbon dioxide), it is a laser scanner marking machine with CO2 gas as the working medium, CO2 laser marking machine is a CO2 laser with CO2 gas as the medium. After filling the discharge tube with CO2 and other auxiliary gases and applying high voltage to the electrode, the discharge tube generates glow discharge, which causes the gas to emit laser with a wavelength of 10.64um. After the laser energy is amplified, under the control of the computer and laser marking control card, images, words, numbers and lines can be marked on the workpiece according to the user's requirements.

CO2 laser marking machine composition: CO2 laser marking machine is mainly composed of CO2 laser, 10.64 field mirror, 10.64 beam expanding mirror, CO2 laser power supply, scanning oscillator, control computer, laser control card, laser control software, laser machine frame, laser circulating water system, circuit control system and other components.

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