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Laser cutting method and system for frosted glass

A laser cutting and frosted glass technology, applied in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of poor surface scattering and cutting quality, achieve high processing efficiency, solve the effect of surface scattering and poor cutting quality

Pending Publication Date: 2019-05-17
INNO LASER TECH CORP LTD
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a high-efficiency cutting method and system for textured surface glass to overcome the problems of surface scattering and poor cutting quality in existing laser cutting methods

Method used

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  • Laser cutting method and system for frosted glass
  • Laser cutting method and system for frosted glass
  • Laser cutting method and system for frosted glass

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Experimental program
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Embodiment

[0030] see figure 1 , a laser cutting method for frosted glass, comprising:

[0031] S1. Apply a transparent liquid on both sides of the frosted glass, and the refractive index of the transparent liquid is similar to that of the glass to be processed;

[0032] S2. Paste transparent glass on both sides of the frosted glass, press the frosted glass and the transparent glass, remove the air bubbles between the frosted glass and the transparent glass, and obtain the glass to be processed, which can make the frosted glass with poor light transmittance transparent and make the laser easier penetrate;

[0033] S3. Use a laser with a wavelength of 1030-1090nm and a pulse width of 5-15ps to cut the glass to be processed. Through the beam shaping effect of the cutting head, the Gaussian beam of the laser is shaped into a Bessel beam, and the Bessel beam is a focused beam. For a beam with a small spot and a long focal depth, the energy in the focal depth range is basically the same. Th...

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Abstract

The invention provides a laser cutting method and system for frosted glass. Transparent liquid is applied to the two sides of the frosted glass, then transparent glass is attached to the two sides ofthe frosted glass, to-be-processed glass is obtained, the to-be-processed glass is cut and lobed, and a finished product is obtained. The laser cutting method and system have the beneficial effects that according to the method, a layer of transparent liquid is applied to the upper and lower surfaces of the to-be-processed glass, then the two pieces of transparent glass are used for pressing, internal bubbles are removed, and therefore the frosted glass with poor translucency becomes transparent, and laser is very easy to penetrate; then the glass is cut by Bessel beams, holes having certain distances and having the diameter being about 2 microns are formed in the surface of the glass, and cracks are formed between the holes; and CO2 laser is injected to the cutting position through a scanning galvanometer to make the cracks between the holes be heated and cracked, and the needed product is finally obtained. The method can solve the problem that an existing laser cutting method has surface scattering and poor cutting quality; and meanwhile the high processing efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of glass cutting, in particular to a method and system for laser cutting of frosted glass. Background technique [0002] Glass is a common material in industry and life. In glass production, cutting is the most common processing application. In some industries such as 3C, the requirements for glass cutting are getting higher and higher. [0003] The first method of traditional laser cutting glass is to use CO with a wavelength of 10.6um 2 Laser, glass strongly absorbs light in this band, high-power laser makes the glass break when heated at the focal position of the laser, and the cracks extend to the upper and lower surfaces of the glass to complete the cutting. In the process of thermal cutting, it is usually necessary to use a quenching nozzle to spray cold water or cold air on the cutting track to crack the glass. This method has low cutting accuracy and is difficult to process complex graphics. The s...

Claims

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Application Information

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IPC IPC(8): B23K26/38B23K26/402
Inventor 张浩陈蔚郭鹏峰刘阳
Owner INNO LASER TECH CORP LTD
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