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A method for microfabrication of glass surface by using red nanosecond laser

A microfabrication and glass surface technology, which is applied in the field of microfabrication of glass surface with red nanosecond laser, can solve the problems of glass burn, microcrack, difficult to achieve precise microstructure processing, etc., and achieve the effect of reducing pulse energy

Active Publication Date: 2022-06-17
DALIAN JIAOTONG UNIVERSITY
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Problems solved by technology

At the same time, the laser pulse energy corresponding to this pulse width is about 1mJ. If this energy value is directly applied to the surface of the glass material, it will cause severe burns of the glass and produce a large number of microcracks, making it difficult to achieve precise processing of the microstructure.

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  • A method for microfabrication of glass surface by using red nanosecond laser
  • A method for microfabrication of glass surface by using red nanosecond laser
  • A method for microfabrication of glass surface by using red nanosecond laser

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Embodiment Construction

[0024] The present invention will be further described below with reference to the accompanying drawings. like Figure 1-3 As shown in the figure, a method for microfabricating a glass surface by using a red nanosecond laser includes the following steps:

[0025] Step A, the glass material surface is evenly coated with a layer of auxiliary materials 5;

[0026] Before laser processing, the auxiliary material 5 is selected, and the auxiliary material 5 is prepared into an aqueous solution with a solid content of 8% to 15%, and the glass surface is coated with the auxiliary material 5;

[0027] The glass sheet 3 is horizontally installed on the special fixture 2, and the special fixture 2 is fixedly installed on the two-dimensional precision worktable 1, so as to realize the two-dimensional movement of the special fixture 2 in the horizontal plane;

[0028] When coating, drop 0.4-0.6 mL of the auxiliary material 5 on the surface of the glass sheet 3, and drive the elastic elem...

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Abstract

The invention discloses a method for microfabrication of glass surface by using a red nanosecond laser, which comprises the following steps: uniformly coating a layer of auxiliary material on the surface of a glass material; placing the glass sheet horizontally at room temperature; performing microfine processing on the glass sheet processing. The invention utilizes the characteristic of high light absorption rate of the auxiliary material to realize the laser focusing inside the coating layer, effectively overcoming the problem that the current red light nanosecond laser processing cannot focus the laser light on the surface due to the high light transmittance of the glass itself. Superficial flaws. The invention focuses the laser on the inside of the coating layer, and produces ablation microholes conforming to the Gaussian energy distribution at the focus of the laser. Since the main part of the laser pulse energy is consumed in the ablation process of the auxiliary material, the nanosecond laser can be effectively reduced. The pulse energy overcomes the shortcomings of the existing nanosecond laser processing technology, compared with precision micro-nano processing, that the pulse energy is too high. The invention realizes non-destructive precision micro-nano processing on the glass surface.

Description

technical field [0001] The invention belongs to a micro-processing method in the field of laser processing, in particular to a method for micro-processing a glass surface by using a red light nanosecond laser. Background technique [0002] Laser processing technology is a processing technology for cutting, welding, surface treatment, drilling and micromachining of materials (including metals and non-metals) by using the characteristics of the interaction between laser beams and substances. The use of laser technology to construct micro-nano structures on glass surfaces is a part of surface engineering research. Glass materials with such micro-nano structures are widely used in biological, automotive, aerospace and other fields. [0003] The red nanosecond laser is a common laser source with high cost performance. It has the characteristics of a central emission wavelength of 1064 nm and an average pulse width of 100 ns. When the red nanosecond laser is used to micro-process ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00C03C23/00
CPCC03C17/006C03C23/001C03C23/0025
Inventor 杨亮罗熙淳蔡玉奎张文龙
Owner DALIAN JIAOTONG UNIVERSITY
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