CN104692638A - Laser cutting method for glass - Google Patents
Laser cutting method for glass Download PDFInfo
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- CN104692638A CN104692638A CN201510053011.0A CN201510053011A CN104692638A CN 104692638 A CN104692638 A CN 104692638A CN 201510053011 A CN201510053011 A CN 201510053011A CN 104692638 A CN104692638 A CN 104692638A
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- glass
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser cutting method for glass. The laser cutting method comprises the following steps: finding out a to-be-cut position of a glass plate; coating the to-be-cut part of the glass plate with a layer of non-volatile light-shading substance; and moving a laser beam along the to-be-cut part to cut. The laser cutting method for glass disclosed by the invention adopts the shading layer to prevent the laser from penetrating through the glass and absorbing heat on the shaded part, so that the cutting efficiency is improved.
Description
Technical field
The present invention relates to laser Application Areas, be specifically related to a kind of method of cutting glass by laser.
Background technology
The method of conventional glass substrate cutting adopts diamond wheel sheet or the line of Wimet wheel, then uses the method breaking glass of machinery.Although relatively simple by the method, after line snap-off process, the generation due to glass edge unrelieved stress and tiny crack can reduce at most the intensity of glass, and needs to increase cleaning, polishing, thermal treatment Deng Hou road flow process.In substrate surface matting, small chip also may cause the damage to glass surface.Machinery line becomes to the destruction of glass inherence the latency causing indicating meter to lose efficacy.
Chinese invention patent prospectus CN1 (02531371) A discloses a kind of method of cutting glass by laser, comprises the position of selecting sheet glass to need cut; By the transparence adsorption layer of coated for the position of described cutting non-volatility; Laser beam cutting is moved along described cutting part.Although the transparence material of coated one deck non-volatility can increase the absorption of material for laser light energy, the absorption for the light of the shorter 980nm-1064nm of wavelength can reduce a lot, and the energy of laser can be made effectively not assemble.
Summary of the invention
For solving above technical problem, the invention provides a kind of method of cutting glass by laser.
The present invention discloses a kind of method of cutting glass by laser, and need the position of cutting to smear one deck non-volatility shading material on a glass, laser beam moves cutting along described position.
When laser beam cuts, cutting part is blown into pressurized air, blows away the glass powder cut down.
The focal position of described laser beam is at glass pane surface or following 1-3mm.
Described non-volatility shading material is titanium dioxide.
Described titanium dioxide is dissolved in volatile organic solvent before smearing.
Described thickness of glass is 0.5-1.5mm.
Described laser beam can X-axis, Y-axis, Z axis three-dimensional motion.
Compared with prior art, the present invention has following beneficial effect.
1, the mechanical cutting tool from traditional is different, and the energy of laser beam cuts glass in the non-contacting mode of one.Not only overcome the problem of traditional mechanical type cutting, also there is the advantages such as joint-cutting is narrow, slot edge-perpendicular degree is good, cut surface Glabrous stings, heat affected zone is little simultaneously.
2, along with more and more higher to the specification of quality of liquid crystal display glass substrate, utilize mechanical means to cut liquid-crystal display glass substrate, difficulty is increasing, affects quality and the yield of cutting technique, and glass has light transmission, the energy of laser can not effectively be absorbed.
Accompanying drawing explanation
Fig. 1 is enforcement schematic diagram of the present invention.
Embodiment
For describing technology contents, structural attitude, the object realized and the effect of inventing in detail, be explained below in conjunction with embodiment.
As shown in Figure 1, a kind of method of cutting glass by laser, first selection thickness of glass is the position of the needs cutting of the sheet glass of 0.5-1.5mm.
Then the position of cutting is needed to smear one deck titanium dioxide on a glass.
Glass is that the absorptivity of the wave band of 10.6 μm is very high to wavelength, can 90% be reached, but more and more less along with wavelength, the specific absorption of glass to light is more and more less, from ultraviolet band to wavelength be the laser absorption rate of 1064nm less than 10%, therefore showing to smear one deck non-volatility shading material, covering layer is titanium dioxide, laser can be made like this to be difficult to through surface layer of glass, and to make laser produce higher-energy at surface layer of glass.
Move laser beam along cutting part afterwards to carry out cutting and described laser beam cuts;
The focal position of laser beam is in glass pane surface or following, and the focal position of laser apparatus is at the downward 1mm of glass pane surface.
In order to cut facilitate laser beam can X-axis, Y-axis, Z axis three-dimensional motion.
Along with the change of laser power, this operation can realize glass line and glass cutting two kinds of patterns.
Claims (7)
1. a method for cutting glass by laser, is characterized in that: need the position of cutting to smear one deck non-volatility shading material on a glass, laser beam moves cutting along described position.
2. the method for a kind of cutting glass by laser according to claim 1, is characterized in that: when laser beam cuts, cutting part is blown into pressurized air, blows away the glass powder cut down.
3. the method for a kind of cutting glass by laser according to claim 1, is characterized in that: the focal position of described laser beam is at glass pane surface or following 1-3mm.
4. the method for a kind of cutting glass by laser according to claim 1, is characterized in that: described non-volatility shading material is titanium dioxide.
5. the method for a kind of cutting glass by laser according to claim 4, is characterized in that: described titanium dioxide is dissolved in volatile organic solvent before smearing.
6. the method for a kind of cutting glass by laser according to claim 1, is characterized in that: described thickness of glass is 0.5-1.5mm.
7. the method for a kind of cutting glass by laser according to claim 1, is characterized in that: described laser beam can X-axis, Y-axis, Z axis three-dimensional motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053011.0A CN104692638A (en) | 2015-02-02 | 2015-02-02 | Laser cutting method for glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053011.0A CN104692638A (en) | 2015-02-02 | 2015-02-02 | Laser cutting method for glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104692638A true CN104692638A (en) | 2015-06-10 |
Family
ID=53340249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510053011.0A Pending CN104692638A (en) | 2015-02-02 | 2015-02-02 | Laser cutting method for glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104692638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685195A (en) * | 2016-08-05 | 2018-02-13 | 东莞市瑞立达玻璃盖板科技股份有限公司 | A kind of glass plate stereosopic printing technique |
| CN113560752A (en) * | 2021-09-01 | 2021-10-29 | 福建华佳彩有限公司 | Radium-shine cutting bed plate structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0062484A1 (en) * | 1981-04-01 | 1982-10-13 | Creative Glassworks International | Method of cutting glass with a laser |
| CN103028844A (en) * | 2011-10-06 | 2013-04-10 | 株式会社迪思科 | Ablation method for substrate on which passivation film is formed |
| CN103097313A (en) * | 2010-08-31 | 2013-05-08 | 康宁股份有限公司 | Methods of separating strengthened glass substrates |
-
2015
- 2015-02-02 CN CN201510053011.0A patent/CN104692638A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0062484A1 (en) * | 1981-04-01 | 1982-10-13 | Creative Glassworks International | Method of cutting glass with a laser |
| CN103097313A (en) * | 2010-08-31 | 2013-05-08 | 康宁股份有限公司 | Methods of separating strengthened glass substrates |
| CN103028844A (en) * | 2011-10-06 | 2013-04-10 | 株式会社迪思科 | Ablation method for substrate on which passivation film is formed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685195A (en) * | 2016-08-05 | 2018-02-13 | 东莞市瑞立达玻璃盖板科技股份有限公司 | A kind of glass plate stereosopic printing technique |
| CN113560752A (en) * | 2021-09-01 | 2021-10-29 | 福建华佳彩有限公司 | Radium-shine cutting bed plate structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |