Device and method for using laser to induce plasmas to process non-metallic material

A non-metallic material and plasma technology, which is applied in the direction of plasma, lasers, laser parts, etc., can solve the problems of poor quality of non-metallic materials, and achieve the effects of small heat-affected zone, high processing precision and high energy

Active Publication Date: 2018-01-12
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a laser-induced plasma processing device and method for non-metallic materials, thereby solving the technical problem of poor quality of processed non-metallic materials in the prior art

Method used

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  • Device and method for using laser to induce plasmas to process non-metallic material
  • Device and method for using laser to induce plasmas to process non-metallic material
  • Device and method for using laser to induce plasmas to process non-metallic material

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Experimental program
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Effect test

Embodiment 1

[0038] Use a laser to generate a high peak power laser pulse to act on the surface of the stainless steel plate to generate plasma on the surface of the stainless steel plate; then use the plasma to process the leaves to realize the processing of the leaves; the high peak power of the high peak power laser pulse is 10KW, the peak The width of the maximum power laser pulse is 500ns, the frequency of the high peak power laser pulse is 100Hz, the average power of the high peak power laser pulse is 1W, and the wavelength of the high peak power laser pulse is 200nm. image 3 As shown, the processing ablation marks are few, and the processing quality is high.

Embodiment 2

[0040] Use a laser to generate a high peak power laser pulse to act on the surface of the iron plate to generate plasma on the surface of the iron plate; then use the plasma to process the leaves to realize the processing of the leaves; the high peak power of the high peak power laser pulse is 1GW, the peak The width of the maximum power laser pulse is 1fs, the frequency of the high peak power laser pulse is 100kHZ, the average power of the high peak power laser pulse is 1KW, and the wavelength of the high peak power laser pulse is 2μm. The effect of processing leaves is as follows Figure 4 As shown, the processing ablation marks are few, and the processing quality is high.

Embodiment 3

[0042] Using a laser to generate a high peak power laser pulse acts on the surface of the carbon steel plate to generate plasma on the surface of the carbon steel plate; then use the plasma to process the paper to realize the processing of the paper; the high peak power of the high peak power laser pulse is 100KW, the peak The width of the maximum power laser pulse is 800ns, the frequency of the high peak power laser pulse is 500Hz, the average power of the high peak power laser pulse is 100W, and the wavelength of the high peak power laser pulse is 800nm. Figure 5 As shown, the processing ablation marks are few, and the processing quality is high.

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Abstract

The invention discloses a device and method for using laser to induce plasmas to process a non-metallic material. The device comprises a laser device, a laser holophote, an X-direction vibration reflector, a Y-direction vibration reflector, a laser focusing lens and a metallic material, the laser device is used for generating high-peak power laser pulses, the laser holophote is used for reflectingthe high-peak power laser pulses to the X-direction vibration reflector, then the high-peak power laser pulses are reflected to the laser focusing lens through the X-direction vibration reflector andthe Y-direction vibration reflector, the laser focusing lens is used for focusing the high-peak power laser pulses, the metallic material is located below the laser focusing lens, the high-peak powerlaser pulses focused by the laser focusing lens are emit into the metallic material to generate plasmas, and the plasmas are utilized to process the non-metallic material. The processed non-metallicmaterial is directly gasified, no ablating marks exist, and the effects of non-metallic melting, cutting, carving and punching with higher quality are achieved.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing, and more particularly relates to a device and method for laser-induced plasma processing of non-metallic materials. Background technique [0002] In traditional laser material processing, laser energy is directly applied to the material to be processed, and the laser energy absorbed by the material depends on the absorption coefficient of the material for the laser wavelength. Generally speaking, metallic materials have a high absorption coefficient for lasers with shorter wavelengths, and non-metallic materials have high absorption coefficients for materials with longer wavelengths. Existing lasers that can generate narrow pulse width and high peak power, mainly solid-state lasers, output wavelengths in the near-infrared range from ultraviolet to 1.5 microns. In this range, the absorption coefficient of metals is relatively high, which is suitable for metal processing. For non-metallic mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00G02B26/10H05H1/24
Inventor 朱晓单平王海林朱广志
Owner HUAZHONG UNIV OF SCI & TECH
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