CN102765876A - Glass cutting method by laser self-focusing and wire feeding - Google Patents

Glass cutting method by laser self-focusing and wire feeding Download PDF

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CN102765876A
CN102765876A CN2011101173644A CN201110117364A CN102765876A CN 102765876 A CN102765876 A CN 102765876A CN 2011101173644 A CN2011101173644 A CN 2011101173644A CN 201110117364 A CN201110117364 A CN 201110117364A CN 102765876 A CN102765876 A CN 102765876A
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glass
laser
focusing
cutting
self
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CN2011101173644A
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龚辉
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上海镭立激光科技有限公司
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Abstract

A glass cutting method by laser self-focusing and wire feeding comprises the following steps of: focusing laser beams into the inside of glass to promote internal refractive index of the glass to change, using distortion generated by laser wave front to generate laser self-focusing, using laser energy near focus formed by the laser self-focusing to generate multiphoton absorption ionization puncture damage inside the glass so as to form long wire damage crack, moving the laser beam along the cutting path so as to expand the long wire damage crack into a fine band-shaped damage crack, changing the height of the focus formed by the laser self-focusing inside the glass, repeatedly moving the laser beam along the cutting path so as to make the fine band-shaped damage crack penetrate the whole glass substrate, and finally using thermal stress, mechanical force or chemical method to form stress on the glass surface so as to break the glass along the fine band-shaped damage crack. The glass cutting method has advantages of high cutting precision, fast speed, low cost and high notch quality. By the adoption of the method, no subsequent polishing and grinding treatment is required, sharp edge will not be formed, and glass with any thickness and shapes can be cut.

Description

ー种激光自聚焦穿丝玻璃切割方法ー types of laser self-focusing glass cutting method of threading

技术领域: FIELD:

[0001] 本发明涉及物理领域,尤其涉及光学技术,特别涉及激光切割加工技术,具体的是ー种激光自聚焦穿丝玻璃切割方法。 [0001] The present invention relates to the field of physics, in particular, to optical technology, particularly relates to a laser cutting technique, specifically ー types of laser self-focusing glass cutting threading method.

背景技术[0002] 从平板显示器和电子行业所用的电子玻璃衬底,到汽车业或建筑业等大規模制造领域所用的大尺寸的玻璃板,玻璃的应用非常广泛。 Large scale manufacturing of [0002] electrons from the glass substrate and flat panel displays used in the electronics industry, the automotive industry or the like used in the construction glass, glass is very broad application. 最常见的玻璃类型为钠钙玻璃,主要用于汽车业、建筑业及家用器具领域,一般厚度为I. 6〜12mm。 The most common type of glass is soda-lime glass, mainly for the automotive, construction and household appliances. The common thickness of I. 6~12mm. 厚度小于Imm的玻璃称为硼娃玻璃,主要用于平板显示器(FPD)与电子产品领域。 A glass thickness of less than Imm called baby boron glass, mainly for flat panel display (FPD) and electronic products. 随着更多新产品的应用,对于玻璃制品的质量要求也越来越高,除了要考虑玻璃的材料特性之外,还必须实现更为精密的玻璃加エ,传统的玻璃切割エ艺已经很难满足微裂及边缘质量方面的要求,而利用激光进行玻璃的切割不仅可以使切割边缘光滑整齐,避免了微细裂痕,切割质量得到很大的提高。 With the application of more new products, the quality requirements for glass products have become more sophisticated, in addition to considering the material properties of the glass, must also implement more sophisticated glass plus Ester, Ester Arts conventional glass cutting has been very microcracks and difficult to meet quality requirements of the edge and glass by laser cutting can not only cut smooth edges, avoided micro cracks cut quality greatly improved. 而且,激光切割在计算机的辅助下,能够连续地、精确地完成设定图案的曲线切割,在现代玻璃加エ中有非常好的应用前景。 Also, laser cutting with the aid of a computer, can be continuously and accurately curve cutting complete set of patterns, there is a very good prospect in modern processing Ester glass.

[0003] 现有技术中,激光切割玻璃技术分为激光热熔切割、激光热分离切割和激光刻蚀切割。 [0003] In the prior art, laser cutting technology is divided into the glass melt laser cutting, laser cutting and laser etching thermal separation cutting.

[0004] 其中,激光热熔切割方法的原理是,利用玻璃处在软化的温度下具有较好的塑性和延展性,用聚焦的高功率ニ氧化碳激光照射到软化的玻璃表面,较高的能量密度会导致玻璃融化,然后用气流吹走熔融的玻璃,产生沟槽,实现玻璃的熔融切割,该方法的关键就是把玻璃加热到ー个适当的温度,减小激光切割过程中产生的热应力。 [0004] wherein the hot-melt principle of laser cutting method is to use a glass having good plasticity in ductility and softening temperature, with a focused high-power carbon dioxide laser irradiation ni softened to the glass surface, a high energy density will cause the glass to melt, and then blown with air stream of molten glass, to produce the trench, the cutting implement molten glass, the key to this approach is that glass is heated to a suitable temperature ー, reduced heat generated during laser cutting stress. 但是,利用激光热熔切割对玻璃会有很强的热影响,处理不当就会对玻璃产生损伤,影响到玻璃的加工质量。 However, the use of laser thermal cutting a strong impact on the glass will be hot, not handled properly it will cause damage to the glass, affecting the processing quality of the glass.

[0005] 激光热分离切割的原理是:首先利用激光对玻璃表面进行加热,较高的能量会使该处的温度急剧升高,表面产生较大的压应力,但该压应カ不会使玻璃产生破裂,然后对该区域进行急剧的冷却,一般采用冷却气体或者冷却液,急剧的降温会使玻璃表面产生较大的温度梯度和较大的拉应力,这个拉应カ会使玻璃表面沿着预定划线的方向开始破裂,实现玻璃的切割。 [0005] The principle of laser cutting is a thermal separation: first, using a laser to heat the glass surface, leading to sharp temperature rise thereat higher energy, the surface compressive stress greater, but the pressure should not make ka glass generation of cracks, and the abrupt cooling zone, typically using a cooling gas or a cooling liquid, sharp glass surface will have a greater cooling temperature gradient and a large tensile stress, the grades will be pulled along the glass surface the predetermined rupture start scribing direction, to achieve the cutting of glass. 整个加工过程能完全消除细微的裂缝和碎片,无需后续打磨和抛光步骤。 The whole process can be completely eliminated fine cracks and debris, without subsequent grinding and polishing steps. 正因为如此,激光热分离的玻璃边缘也非常鋒利,极易划手。 Because of this, laser thermal separated glass edges are very sharp, highly rower. 而且玻璃边缘存在热应力,虽然增强了玻璃边缘强度,但是如果发生轻微磕碰,也像钢化玻璃一般造成整个玻璃破碎,对后续加工エ序要求高。 Also the presence of the glass edge thermal stress, although the reinforced glass edge strength, but if it occurs a slight bump, like glass generally cause the entire broken glass, high requirements on subsequent processing sequence Ester. 另外,在裂纹扩展过程中,如果裂纹得不到很好的控制,就会严重影响到切割质量,甚至使切割失败。 In addition, the crack propagation process, if the crack is not well controlled, it will seriously affect the cutting quality, even failed to make the cut.

[0006] 激光刻蚀切割的原理是:利用超短脉冲激光直接刻蚀玻璃,完成玻璃切割。 [0006] The laser etching cutting principle is: the use of an ultrashort pulse laser direct lithography glass, glass cutting is completed. 超短脉冲激光具有能量高、作用时间短的优点,可以在避免材料被融化的情况下瞬间将材料变成等离子体而挥发出去,而在这极短的作用时间内,热量来不及在材料内堆积,从而避免了上述两种方法进行玻璃切割时产生的热效应。 Ultrashort pulse laser having a high energy, short duration of action advantages, can instantly material becomes plasma while avoiding the volatilized material is melted out, and this in a very short duration of action, time to heat within the material deposited in , thus avoiding the thermal effects of the above two methods for cutting glass. 但是设备成本高,切割效率不高而且切割玻璃厚度有限制。 However, high equipment cost, high cutting efficiency and cutting glass thickness is not limited. 发明内容: SUMMARY:

[0007] 本发明的目的在于提供ー种激光自聚焦穿丝玻璃切割方法,所述的这种激光自聚焦穿丝玻璃切割方法要解决现有的激光切割玻璃技术中热应カ影响加工质量、切割效率低、切割玻璃厚度有限的技术问题。 [0007] The object of the present invention to provide a self-focusing ー types of laser glass cutting threading method, according to which the self-focusing of the laser glass cutting threading method to solve the conventional laser cutting glass thermal impact grades TECHNIQUE processing quality, low cutting efficiency, the thickness of the cut glass limited technical problems.

[0008] 本发明的这种激光自聚焦穿丝玻璃切割方法,包括一个将激光光束聚焦后作用在玻璃上的步骤和ー个利用热应力、机械外力或者化学法将所述的玻璃分断的步骤,其中,在所述的将激光光束聚焦后作用在玻璃上的步骤中,将激光光束聚焦到所述的玻璃的内部,促使玻璃内部折射率发生变化,再利用激光波阵面发生的畸变产生激光自聚焦,利用激光自聚焦形成的焦点附近的激光能量在玻璃内部产生多光子吸收电离击穿损伤,形成长条细丝损伤裂痕,将激光光束沿切割路径移动,将所述的长条细丝损伤裂痕扩展为细带状破坏裂痕,改变激光自聚焦形成的焦点在玻璃内部的高度,然后沿着切割路径重复移动激光光束,使所述的细帯状破坏裂痕贯穿整个玻璃基板,在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤中,利用热应力、机械外力 [0008] Such a laser of the present invention is self-focusing glass cutting threading method, comprising a step after the laser beam is focused on the role of the glass and ー a thermal stress, external force step mechanical or chemical method of breaking the glass , wherein, in said focus the laser beam after the step of acting on the glass, the laser beam is focused inside the glass, causes the inner glass refractive index change, re-use laser light wavefront distortion occurs generating self-focusing of the laser, with laser energy from a laser focused near the focal point formed by generating multiphoton absorption within the ionization breakdown damage the glass, cracks are formed elongated filament damage, moving the laser beam along the cutting path, the long thin strips injury fine cracks extended wire ribbon destruction cracks, changing the height of the focal point of the laser self-focusing inside the glass is formed, and repeatedly moving the laser beam along the cutting path, the destruction of the fine Bands like cracks throughout the glass substrate, the the thermal stress, chemical or mechanical force step method of breaking glass, the thermal stress, mechanical force 或者化学法在玻璃表面形成应力,使玻璃沿细带状破坏裂痕分断。 A stress or a chemical method on the surface of the glass, the glass cracks along the strip-shaped breaking damage.

[0009] 进ー步的,所述的长条细丝损伤裂痕的直径在I微米到99微米之间,长条细丝损伤裂痕的长度小于10晕米。 [0009] step into ー, the diameter of the elongated filament damage cracks between I micron to 99 microns, length of crack damage filaments is less than 10 meters halo.

[0010] 进ー步的,在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤进行之前,在玻璃上切割辅助裂痕。 Before [0010] into ー step, in the thermal stress, chemical or mechanical force to the glass breaking step is performed, cracks in the glass cutting aid.

[0011] 进ー步的,在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤中,可以利用玻璃加工エ序中的钢化过程中自动完成玻璃分断。 [0011] step into ー, in the thermal stress, chemical or mechanical force method step of breaking the glass, the glass may be utilized in the processing sequence Ester tempering process automatically breaking the glass.

[0012] 本发明的工作原理是:高強度激光聚焦在玻璃内部,使玻璃内部折射率发生变化,其变化与通过玻璃的激光强度成正比,而激光光强在其光束截面上的分布是呈高斯分布,中心部分光强高,折射率增加也大,而边缘部分光强弱,折射率变化小。 [0012] The working principle of the present invention are: high-intensity laser light is focused inside the glass, the refractive index of glass changes the inside, which is proportional to the change in strength of the glass by a laser, the laser light intensity distribution on the beam cross-section which is in the form Gaussian distribution, the central portion of the high light intensity, increased refractive index is large, and the edge portion of the light intensity, a small change in the refractive index. 激光波阵面就发生了畸变,产生自聚焦现象。 Laser light wavefront distortion occurs, resulting in self-focusing phenomenon. 激光光束自聚焦后,在焦点附近的区域光强会变得更强,造成玻璃内部发生多光子吸收电离击穿损伤,留下直径只有几微米到几十微米的长条细丝损伤裂痕,细丝裂痕最长可达几毫米,但直径近乎不变。 Since the focused laser beam, in a region near the focus of the light intensity becomes stronger, causing multiphoton absorption occurs within the glass ionization breakdown damage, cracks elongated filament damage leaving only a few microns in diameter to several tens of micrometers, the fine wire cracks up to a few millimeters, but almost the same diameter. 然后将激光沿着切割路径移动,在玻璃内部形成一个由丝状裂痕形成的细带状破坏裂痕,改变激光焦点在玻璃内部的高度,然后沿着切割路径重复移动激光,从而形成贯穿整个玻璃基板的细带状破坏裂痕。 The laser is then moved along a cutting path to form a thin strip formed by the destruction of the filament inside the glass cracks crack, changing the height of the laser focus in the glass, and then moves along the cutting path of the laser repetition, thereby forming a glass substrate throughout thin strip of destruction cracks. 由于玻璃内部的丝状破坏裂痕非常细,因此不是一歩完全分裂玻璃。 Since the internal damage of the glass filaments very fine cracks, and therefore it is not a ho completely split glass. 玻璃在切割完后,一般都需要分断处理,本发明利用热应力、机械外力或者化学法在玻璃表面形成的应カ来完成玻璃切断。 After cutting the glass, generally requires breaking process of the present invention, the thermal stress, chemical or mechanical force is formed in the glass surface of the glass should be done off grades. 进ー步的,为了保证玻璃断裂质量,同时需要切割一些辅助裂痕。 Into ー step, in order to ensure the quality of the glass fracture, while necessary to cut some auxiliary cracks. 进ー步的,在玻璃分断的エ艺中,可以利用玻璃加工エ序中的钢化过程中自动完成,从而减少中间步骤,完全省去玻璃抛磨清洗。 Into ー step, the breaking of glass Ester arts may be utilized in glass processing sequence Ester tempering process is completed automatically, thereby reducing the intermediate steps, omitted entirely cleaned polishing glass. 玻璃加工ニ步法即可完成, Ni glass processing step can be completed,

[0013] 本发明和已有技术相比较,其效果是积极和明显的。 [0013] The present invention and compared to prior art, the effect is positive and significant. 本发明先利用高強度激光聚焦在玻璃内部后产生的自聚焦现象在玻璃内部造成长条细丝损伤裂痕,沿着切割路径重复移动激光,使长条细丝损伤裂痕形成贯穿整个玻璃基板的细带状破坏裂痕,再利用热应力、机械外力或者化学法在玻璃表面形成的应カ来完成玻璃切断,切割精度高,速度快,成本低,切割过程中无碎片产生,切ロ质量高,无需后续抛磨处理,而且不会形成鋒利边缘。 The present invention is to utilize high intensity focused laser self-focusing inside the glass produced after long damage caused cracks in the glass filaments, moving the laser cutting path repeated along the elongated filament formation damage cracks throughout the glass substrate thin ribbon destruction cracks, then the thermal stress, chemical or mechanical force is formed in the glass surface of the glass should be done off grades, high cutting precision, high speed, low cost, free of debris generated during the cutting process, cutting ro high quality, without subsequent polishing process, and do not form a sharp edge. 本发明可以切割任意厚度和形状的玻璃,实现玻璃激光切割的高精度、高速度、高质量和通用性。 The present invention may be any thickness and shape of cut glass, high precision, speed, quality and versatility of glass laser cutting.

附图说明: BRIEF DESCRIPTION OF:

[0014] 图I是本发明的激光自聚焦穿丝玻璃切割方法中的玻璃穿丝破坏裂痕的示意图。 [0014] FIG. I is a schematic view of a laser glass fiber of the present invention through the self-focusing glass cutting threading method of destruction cracks.

[0015] 图2是本发明的激光自聚焦穿丝玻璃切割方法中的细带状破坏裂痕的示意图。 [0015] FIG. 2 is a self-focusing of the laser according to the present invention, thin strip of threading a schematic view of destruction cracks in the glass cutting method.

[0016] 图3是本发明的激光自聚焦穿丝玻璃切割方法的一个实施例中的辅助裂痕的示意图。 [0016] FIG. 3 is a schematic diagram of a secondary embodiment of cracks embodiment threading glass laser cutting method of the present invention is self-focusing.

具体实施方式: Detailed ways:

[0017] 实施例I [0018] 如图I所示,本发明的激光自聚焦穿丝玻璃切割方法,包括一个将激光光束I聚焦后作用在玻璃3上的步骤和ー个利用热应力、机械外力或者化学法将所述的玻璃3分断的步骤,其中,在所述的将激光光束I聚焦后作用在玻璃3上的步骤中,将激光光束I聚焦到所述的玻璃3的内部,促使玻璃3内部折射率发生变化,再利用激光波阵面发生的畸变产生激光自聚焦,利用激光自聚焦形成的焦点附近的激光能量在玻璃3内部产生多光子吸收电离击穿损伤,形成长条细丝损伤裂痕2,如图2所示,将激光光束I沿切割路径移动,将所述的长条细丝损伤裂痕2扩展为细带状破坏裂痕4,改变激光自聚焦形成的焦点在玻璃3内部的高度,然后沿着切割路径重复移动激光光束I,使所述的细帯状破坏裂痕4贯穿整个玻璃3基板,在所述的利用热应力、机械外力或者化学 [0017] Example I [0018] As shown in FIG I, the present invention is self-focusing of the laser threading glass cutting method, comprising a laser beam after the focusing action of step I on a glass ー 3 and the thermal stress, mechanical external step method or a chemical breaking of the glass 3, wherein, after said laser beam I is focused on the role of step 3 in a glass, focusing a laser beam I 3 to the inside of the glass, prompting refractive index change inside the glass 3, then use the wavefront distortion of a laser generating a laser self-focusing occur, the use of laser energy from the laser beam near the focal point of the focus formed by multiphoton absorption is generated within the ionization breakdown damage the glass 3, a thin strip 2 wire crack damage, as shown in FIG. 2, the laser beam moves along the cutting path I, the elongated filament damage cracks ribbon 2 extended to the destruction of fine cracks 4, changing the focus of the laser from the focusing glass 3 is formed in the height of the inner and repeatedly moving the laser beam along the cutting path I, disrupting the shape of the fine Bands 4 cracks throughout the glass substrate 3 by the thermal stress, chemical or mechanical force 将玻璃3分断的步骤中,利用热应力、机械外力或者化学法在玻璃3表面形成应力,使玻璃3沿细带状破坏裂痕4分断。 Step 3 The breaking of the glass, the thermal stress, chemical or mechanical force 3 is formed on the surface of the glass stress, destruction of the glass cracks 3 4 breaking along the strip-shaped.

[0019] 进ー步的,所述的长条细丝损伤裂痕2的直径在I微米到99微米之间,长条细丝损伤裂痕2的长度小于10毫米。 [0019] ー step into said elongated filament damage between cracks diameter of 2 micrometers to 99 micrometers I, elongated filament damage crack length is less than 10 mm 2.

[0020] 进ー步的,在所述的利用热应カ或者机械外力将玻璃3分断的步骤进行之前,在玻璃3上切割辅助裂痕5。 [0020] step into ー, should precede grades using mechanical force or heat to the glass 3 breaking step is performed on the glass cracks 3 5 secondary cutting.

[0021] 进ー步的,在所述的利用热应力、机械外力或者化学法将玻璃3分断的步骤中,可以利用玻璃加工エ序中的钢化过程中自动完成玻璃3分断。 [0021] step into ー, in the thermal stress, chemical or mechanical force method step of breaking the glass 3 may be utilized in glass processing sequence Ester tempering process 3 automatically breaking the glass.

[0022] 本发明的工作原理是:高強度激光聚焦在玻璃3内部,使玻璃3内部折射率发生变化,其变化与通过玻璃3的激光强度成正比,而激光光强在其光束截面上的分布是呈高斯分布,中心部分光强高,折射率增加也大,而边缘部分光強弱,折射率变化小。 [0022] The working principle of the present invention are: high-intensity laser light is focused inside the glass 3, so that the refractive index change inside the glass 3, which is proportional to the intensity change of the laser through the glass 3, the laser beam intensity in its cross section distribution is a Gaussian distribution, the central portion of the high light intensity, increased refractive index is large, and the edge portion of the light intensity, a small change in the refractive index. 激光波阵面就发生了畸变,产生自聚焦现象。 Laser light wavefront distortion occurs, resulting in self-focusing phenomenon. 激光光束I自聚焦后,在焦点附近的区域光强会变得更强,造成玻璃3内部发生多光子吸收电离击穿损伤,留下直径只有几微米到几十微米的长条细丝损伤裂痕2,细丝裂痕最长可达几毫米,但直径近乎不变。 After the self-focusing of the laser beam I, in a region near the focus of the light intensity becomes stronger, causing the glass 3 while generating multiphoton absorption inside the ionization breakdown damage, leaving only the diameter of the elongated filament damage cracks several microns to tens of microns 2, filaments cracks up to a few millimeters, but almost the same diameter. 然后将激光沿着切割路径移动,在玻璃3内部形成一个由丝状裂痕形成的细带状破坏裂痕4,改变激光焦点在玻璃3内部的高度,然后沿着切割路径重复移动激光,从而形成贯穿整个玻璃3基板的细带状破坏裂痕4。 The laser is then moved along a cutting path to form a thin strip formed of a crack in the glass filament 3 4 crack damage, changing the height of the laser focus within the glass 3, and then moves along the cutting path of the laser repetition, thereby forming a through- 3 strips on the entire glass substrate 4 cracking damage. 由于玻璃3内部的丝状破坏裂痕非常细,因此不是一歩完全分裂玻璃3。 Since the internal damage of the glass filaments 3 very fine cracks, and therefore is not a ho completely split glass 3. 玻璃3在切割完后,一般都需要钢化处理,本发明利用物理或化学钢化玻璃3过程中在玻璃3表面形成的应カ来完成玻璃3切断。 After cutting the glass 3, generally require treatment of steel, according to the present invention is the use of a physical or chemical ka be formed during the glass 3 3 3 glass surface of the glass to complete the cut. 进ー步的,为了保证钢化过程中玻璃3断裂质量,同时需要切割一些辅助裂痕5。 Into ー step, in order to ensure the quality of the fracture 3 in a glass tempering process, while necessary to cut some auxiliary cracks 5.

[0023] 以上是本发明的较佳实施例,凡依本发明技术方案所作的改变,所产生的功能作用未超出本发明技术方案的范围时,均属于本发明的保护范围。 When [0023] The above embodiments are preferred embodiments of the present invention, where the change under this aspect of the invention is made, the resulting functional role does not exceed the scope of the present invention, all fall within the scope of the present invention.

Claims (4)

1. 一种激光自聚焦穿丝玻璃切割方法,包括一个将激光光束聚焦后作用在玻璃上的步骤和一个利用热应力、机械外力或者化学法将所述的玻璃分断的步骤,其特征在于:在所述的将激光光束聚焦后作用在玻璃上的步骤中,将激光光束聚焦到所述的玻璃的内部,促使玻璃内部折射率发生变化,再利用激光波阵面发生的畸变产生激光自聚焦,利用激光自聚焦形成的焦点附近的激光能量在玻璃内部产生多光子吸收电离击穿损伤,形成长条细丝损伤裂痕,将激光光束沿切割路径移动,将所述的长条细丝损伤裂痕扩展为细带状破坏裂痕,改变激光自聚焦形成的焦点在玻璃内部的高度,然后沿着切割路径重复移动激光光束,使所述的细带状破坏裂痕贯穿整个玻璃基板,在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤中,利用热应力、机械外力或者 A laser self-focusing glass cutting threading method, comprising a step after the laser beam is focused on the role of the glass and the step of a thermal stress, external mechanical force or chemically breaking the glass, which is characterized in that: in said focus the laser beam after the step of acting on the glass, the laser beam is focused inside the glass, causes the inner glass refractive index change, re-use laser light wavefront distortion occurs to generate a laser self-focusing laser energy near the focal point formed by laser self-focusing inside the glass produced ionization breakdown damage by multiphoton absorption, forming long filaments crack damage, moving the laser beam along the cutting path, the elongated filament damage cracks destruction of fine cracks extended ribbon, the focal point of the laser to change the height of the self-focusing inside the glass is formed, and repeatedly moving the laser beam along the cutting path, so that the damage to the strip-shaped cracks throughout the glass substrate, the use of thermal stress, chemical or mechanical force step method of breaking glass, the thermal stress, or mechanical force 学法在玻璃表面形成应力,使玻璃沿细带状破坏裂痕分断。 Science stress was formed on a glass surface, the glass cracks along the strip-shaped breaking damage.
2.如权利要求I所述的激光自聚焦穿丝玻璃切割方法,其特征在于:所述的长条细丝损伤裂痕的直径在I微米到99微米之间,长条细丝损伤裂痕的长度小于10毫米。 The laser of claim I of the self-focusing glass cutting threading method, wherein: the diameter of said elongated filament damage cracks between I micron to 99 microns, an elongated length of filament damage cracks less than 10 mm.
3.如权利要求I所述的激光自聚焦穿丝玻璃切割方法,其特征在于:在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤进行之前,在玻璃上切割辅助裂痕。 3. The laser of claim I as claimed in claim threading self-focusing glass cutting method, comprising: prior to the thermal stress, mechanical or chemical method to force the glass breaking step is performed, cracks in the glass cutting aid.
4.如权利要求I所述的激光自聚焦穿丝玻璃切割方法,其特征在于:在所述的利用热应力、机械外力或者化学法将玻璃分断的步骤中,利用玻璃加工工序中的钢化过程自动完成玻璃分断。 4. The laser of claim I as claimed in claim threading self-focusing glass cutting method, wherein: the thermal stress in said step of chemical mechanical force or breaking of the glass, the glass during the use of steel processing step automatically breaking the glass.
CN2011101173644A 2011-05-05 2011-05-05 Glass cutting method by laser self-focusing and wire feeding CN102765876A (en)

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