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Glass cutting method

A glass cutting and 3D technology, applied in glass cutting devices, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as cutting difficulties, achieve wide application range, control crack distribution, and improve controllability

Inactive Publication Date: 2012-11-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ultra-clear glass, because it has higher transmittance to ultraviolet, visible light and near-infrared bands, cutting is more difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] The present invention selects the 532nm semiconductor-pumped green light laser with small volume and convenient processing, and the laser motion control system adopts a scanning vibrating mirror; selects ordinary glass with a thickness of 1.1mm as the material to be cut; selects an irregular closed curve as the cutting shape. This example belongs to the vertical cutting of ordinary glass.

[0038] This example is carried out as follows: clean the glass and place it on the processing platform; use 3Dmax to draw an irregular closed curve, generate a curved surface by lofting, the height is 2.0mm, and save it in OBJ format; import the file into professional software to generate points Cloud model; adjust point cloud density to 100 (points / mm 2 ), save the point cloud model in dxf format, see the model diagram figure 2 ;Import the point cloud model dxf file into the laser control software; set the laser pump current to 38.5A, the laser repetition frequency to 1.81kHz, and...

example 2

[0040] bevel cut

[0041] The present invention selects the 532nm semiconductor-pumped green light laser device with small volume and convenient processing, and the laser motion control system adopts a scanning vibrating mirror; selects ultra-clear glass with a thickness of 5.9mm as the material to be cut; selects the positive prism as the cutting shape, and the prism The angle between the side surface and the bottom surface is 65°. This example belongs to the bevel cutting of ultra-clear glass.

[0042] This example is carried out as follows: clean the glass and place it on the processing platform; use 3Dmax to draw a positive prism with a side length of 10mm and a height of 6.9mm, and save it in OBJ format; import the file into a professional software to generate points Cloud model; adjust point cloud density to 110 (points / mm 2 ), save the point cloud model in dxf format, see the model diagram Figure 4;Import the point cloud model dxf file into the laser control software...

example 3

[0044] In the present invention, a 532nm semiconductor pumped green laser is selected, and the laser motion control system adopts a scanning galvanometer; ultra-white glass with a thickness of 5.9 mm is selected as the material to be cut; a circle with a diameter of 40 mm is selected as the cutting shape, and the school LOGO is carved inside graphics. This example belongs to the integration of ultra-clear glass cutting and internal carving. Effectively solve the problem of internal carving positioning.

[0045] This example is carried out as follows: put the transparent acrylic plate on the processing platform, clean the glass, and place it on the acrylic plate; use 3Dmax to draw a cylindrical surface with a diameter of 40mm and a height of 7mm, and save it as OBJ format; Import the cylinder model and LOGO graphics files into professional software to generate point cloud models; adjust the cylinder point cloud density to 115 (points / mm 2 ), adjust the LOGO point cloud densit...

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Abstract

A glass cutting method relates to a green laser engraving point cloud-based novel glass cutting method and comprises the following steps of: establishing a cutting model in a computer with 3D modeling software; converting the 3D cutting model into a point cloud model by utilizing professional software; reasonably regulating the density of point clouds; carrying out point cloud processing on the surface and interior of glass materials to be processed according to the produced point cloud model by utilizing a laser device and combining a processing platform and a galvanometer system; after the processing is finished, applying mechanical force to lead the glass to break according to a preset track to complete cutting. The glass cutting method is applicable to cutting of various glass materials, can be used for irregular processing, conducting slope cutting, and is low in power by using the laser device, and high in cutting efficiency.

Description

technical field [0001] The invention relates to a glass cutting method based on a green laser laser engraving point cloud. Background technique [0002] Glass is widely used in industrial production and daily life. Using a laser to cut glass has many advantages over the original cutting method. At present, the lasers used for glass cutting are mainly YAG lasers with a wavelength of about 1 μm, and CO lasers with a wavelength of 10.6 μm. 2 The principle of laser is to induce and control glass fracture. Its processing power is relatively high, most of which are above 100W, and the cutting surface is perpendicular to the glass surface. In addition, uncontrollable cracks are easy to occur when cutting special-shaped glass. For ultra-clear glass, because it has higher transmittance to ultraviolet, visible light and near-infrared bands, cutting is more difficult. Contents of the invention [0003] In view of the above, it is necessary to propose a low-power, high-reliability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B33/00
Inventor 刘富荣黄超陈继民袁建文
Owner BEIJING UNIV OF TECH
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