CN111922527B - Punching method and cutting tool for laminated glass and laminated glass - Google Patents
Punching method and cutting tool for laminated glass and laminated glass Download PDFInfo
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- CN111922527B CN111922527B CN202010739399.0A CN202010739399A CN111922527B CN 111922527 B CN111922527 B CN 111922527B CN 202010739399 A CN202010739399 A CN 202010739399A CN 111922527 B CN111922527 B CN 111922527B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/54—Glass
Abstract
The invention relates to the technical field of laminated glass processing, and discloses a punching method and a cutting tool for laminated glass and the laminated glass. The punching method of the laminated glass comprises the following steps: processing the plate glass into single-piece semi-tempered glass with a preset shape and size; carrying out laser annealing on the local position of the hole to be drilled on the semi-tempered glass; connecting two pieces of semi-tempered glass subjected to local annealing into laminated glass through an intermediate layer; and processing a through hole at the annealing position of the laminated glass. The laminated glass with holes processed by the punching method of the laminated glass has high assembly precision and high connection reliability with other structures. The cutting tool can simultaneously provide the laser beam and the high-pressure liquid column for cutting, so that the cutting tool is applied to the punching method of the laminated glass. According to the laminated glass, the through hole is processed by adopting the punching method of the laminated glass, so that the matching precision of the through hole and other structures is high, and the connectivity is reliable.
Description
Technical Field
The invention relates to the technical field of laminated glass processing, in particular to a punching method and a cutting tool for laminated glass and the laminated glass.
Background
The toughened glass has higher impact strength and bending strength, and is widely applied to the window glass of automobiles. Along with the gradual improvement of the requirement of people on the comfort of the vehicle, the laminated glass (two single-piece toughened glass are connected into a whole through the thermoplastic intermediate layer) with better sound insulation and heat insulation effects gradually replaces single-layer toughened glass to become the window glass of the vehicle.
As shown in fig. 1, the laminated glass is used as a side window glass of an automobile, and a through hole is formed at an appropriate position to be connected to a window lifter. Because tempered glass has a high surface compressive stress value, mechanical processing is generally difficult to perform, and thus, in the prior art, tempering treatment is generally performed after a through hole is formed in a single glass sheet. For the sake of beauty, when two pieces of single-piece tempered glass with the same size and the same through hole arrangement position are bonded, the alignment is usually performed by taking the exposed upper edge as a reference, and because the side window glass is a curved surface, the through holes on the two pieces of glass are difficult to be completely aligned, that is, a certain stacking error is generated. In order to smoothly realize the assembly with the lifting mechanism, one solution of the prior art is as follows: the through hole of one of the single pieces of toughened glass is usually processed to be larger than the through hole on the other single piece of toughened glass, and then the smaller through hole is used as an assembly surface to be connected with the lifting mechanism, so that the acting force of the lifting mechanism can only act on the single piece of toughened glass, the stress of the single piece of toughened glass is concentrated, and the reliability of the connection of the whole laminated glass and the lifting mechanism is influenced. The other solution is that an annular edge covering structure is added at the through hole position where the stacking error is generated, the through hole is completely covered by the annular edge covering structure, the problem of stress concentration of single tempered glass can be relieved by the annular edge covering structure through assembling the inner ring of the annular edge covering structure and the lifting mechanism, but the assembling efficiency is influenced and the vehicle cost is increased by additionally arranging the annular edge covering structure.
Therefore, it is desirable to provide a method for punching a laminated glass, a cutting tool and a laminated glass to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for punching laminated glass, and the laminated glass with through holes processed by the method has high assembly precision and high connection reliability with other structures.
A second object of the present invention is to provide a cutting tool capable of simultaneously providing a laser beam and a high pressure liquid column to perform cutting.
The third purpose of the invention is to provide a laminated glass, wherein the through hole on the laminated glass is processed by adopting the punching method of the laminated glass, and the laminated glass has high assembly precision and high connection reliability with other structures.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for perforating laminated glass comprises the following steps:
processing the plate glass into single semi-tempered glass with a preset shape and size;
carrying out laser annealing on the local position of the hole to be drilled on the semi-tempered glass;
connecting two pieces of semi-tempered glass subjected to local annealing into laminated glass through an intermediate layer;
and processing a through hole at the annealing position of the laminated glass.
Optionally, when the through hole is processed in the laminated glass, a laser beam and a high-pressure liquid column are used for cutting the semi-tempered glass at the same time, and the high-pressure liquid column can cut the intermediate layer.
Optionally, the high-pressure liquid column is annular, and the laser beam is located in the middle of the annular high-pressure liquid column.
Optionally, the diameter of the laser beam is D1, the diameter of the high-pressure liquid column is D2, wherein D1 is more than or equal to 0.4mm and less than or equal to 0.6mm, D2 is more than or equal to 0.7mm and less than or equal to 0.9mm, and D1 is more than or equal to D2.
Optionally, the pressure of the high-pressure liquid column is P, wherein P is more than or equal to 1MPa and less than or equal to 6 MPa.
Optionally, both sides of the laminated glass are provided with the laser beam and the high-pressure liquid column to simultaneously cut from both sides of the laminated glass.
Optionally, the laser used for laser annealing is nanosecond single-pulse laser, and the energy density is within the threshold range of the energy density required by recrystallization of the semi-tempered glass.
Optionally, the surface compressive stress of the semi-tempered glass is sigma, wherein 24MPa is less than or equal to sigma less than or equal to 69 MPa.
Optionally, the step of processing the flat glass into a single piece of semi-tempered glass comprises:
cutting the plate glass into an intermediate blank with a preset size; and
and heating the intermediate blank, rolling the intermediate blank into a curved surface, cooling and tempering.
There is also provided a cutting tool for use in a method of perforating laminated glass using the above, the cutting tool comprising:
a laser emission source for emitting a laser beam;
the inner cylinder is connected with the laser emission source and is used for penetrating and shooting the laser beam;
and the outer cylinder is sleeved on the inner cylinder, and high-pressure water passes through a channel between the inner cylinder and the outer cylinder and is discharged from the end part of the outer cylinder to form an annular high-pressure liquid column.
The laminated glass is provided with the through hole processed by the punching method of the laminated glass.
The invention has the beneficial effects that:
according to the punching method of the laminated glass, after the plate glass is processed into the semi-tempered glass with the preset shape and size, the position to be perforated of the semi-tempered glass is locally annealed in a laser annealing mode, so that the surface compressive stress of the position to be perforated is reduced to a range capable of cutting the position; then, two pieces of partially annealed semi-tempered glass are connected into laminated glass through the intermediate layer, and finally, through holes are machined in the annealing positions (namely the positions of holes to be machined) of the laminated glass. The through holes in the two pieces of semi-tempered glass forming the laminated glass are formed by one-step processing after the two pieces of semi-tempered glass are combined, and the through holes in the two pieces of semi-tempered glass are prevented from producing stacking error, so that the through holes in the laminated glass can be smoothly assembled, meanwhile, the two pieces of semi-tempered glass can be stressed simultaneously, and the reliability of connection between the laminated glass and other structures is ensured. The laminated glass with holes processed by the punching method of the laminated glass has high assembly precision and high connection reliability with other structures.
The cutting tool can improve the high-pressure liquid column of the laser beam simultaneously by matching the inner cylinder and the outer cylinder, so that the cutting tool is applied to the punching method of the laminated glass.
The through hole on the laminated glass is processed by adopting the punching method of the laminated glass, and the laminated glass has high assembly precision and high connection reliability with other structures.
Drawings
FIG. 1 is a schematic view of a prior art vehicle side window glass construction;
FIG. 2 is a process flow diagram of a method for perforating laminated glass according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a punching process of a laminated glass according to an embodiment of the present invention;
fig. 4 is a process flow diagram of another method for perforating laminated glass according to an embodiment of the present invention.
In the figure:
1-semi-tempered glass; 2-an intermediate layer; 3-a laser beam; 4-high pressure liquid column; 5-inner cylinder; 6-outer cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The production process of the laminated glass comprises the following steps: processing the plane common glass into single glass with preset shape and size, then toughening the single glass, and then combining the two pieces of toughened single glass through the middle layer. In the prior art, when holes are punched in laminated glass, holes are usually punched in single glass, and then tempering and laminating treatment are carried out, but lamination in such a way is easy to generate stacking error (namely, the holes in the two single glass cannot be completely aligned), so that the assembly of the holes and other structures is influenced; if the through hole of one of the single glass sheets is larger than the through hole of the other single glass sheet, the glass with the smaller through hole is stressed independently when the through hole is assembled with other structures after the sheets are combined, so that the connection reliability is influenced. The embodiment provides a punching method for laminated glass, which can be used in the technical field of laminated glass processing, and is particularly suitable for punching side window glass of a vehicle.
As shown in fig. 2, the method for perforating laminated glass comprises the following steps:
processing the plate glass into single semi-tempered glass 1 with a preset shape and size;
carrying out laser annealing on the local position of the hole to be drilled on the semi-tempered glass 1;
connecting two pieces of partially annealed semi-tempered glass 1 into laminated glass through an intermediate layer 2;
and processing a through hole at the annealing position of the laminated glass.
According to the punching method of the laminated glass, after the plate glass is processed into the semi-tempered glass 1 with the preset shape and size, the position to be perforated of the semi-tempered glass 1 is locally annealed in a laser annealing mode, so that the surface compressive stress of the position to be perforated is reduced to a range capable of cutting the position, and the strength of other positions not needing to be perforated is not influenced; then, two pieces of partially annealed semi-tempered glass 1 are connected into laminated glass through the intermediate layer 2, and finally, through holes are machined in the annealing positions (namely the positions of holes to be machined) of the laminated glass. The through holes in the two pieces of semi-toughened glass 1 forming the laminated glass are formed by one-time processing after the laminated glass is combined, and the through holes in the two pieces of semi-toughened glass are prevented from being overlapped, so that the through holes in the laminated glass can be smoothly assembled, the two pieces of semi-toughened glass 1 can be stressed simultaneously, and the reliability of the connection between the laminated glass and other structures is ensured. The laminated glass processed by the punching method of the laminated glass has high assembly precision and high connection reliability with other structures.
Alternatively, the step of processing the flat glass into a single piece of semi-tempered glass 1 of a predetermined shape and size comprises: cutting the plate glass into an intermediate blank with a preset size; and heating the intermediate blank, rolling the intermediate blank into a curved surface, cooling and tempering. Specifically, the process of cutting the plate glass into an intermediate blank of a predetermined size is: cutting the plate glass into required size in a numerical control cutting mode, and removing the excess material on the edge part by an edge breaking machine; and then, grinding the cutting surface of the intermediate blank into a smooth arc edge by using an edge grinding machine, and finally cleaning and drying the intermediate blank by using a washing machine. The process of rolling the intermediate blank into a curved surface and cooling and tempering has mature processes and equipment, and is not described in detail herein. In the present example, the surface compressive stress of the half tempered glass 1 after molding was σ, wherein 24 MPa. ltoreq. σ.ltoreq.69 MPa. The stress range can ensure that the strength of the finally formed laminated glass meets the use requirement of the side window glass of the vehicle, and in addition, the surface compressive stress value of the partial position of the semi-tempered glass can be smoothly reduced to the range capable of being cut in the subsequent laser annealing step.
When the formed semi-tempered glass 1 is subjected to laser annealing, the adopted laser is nanosecond single pulse laser, and the energy density is within the threshold range of the energy density required by the recrystallization of the semi-tempered glass 1. The local area of the semi-tempered glass 1 can be annealed by the laser annealing mode, so that the strength of the position without hole opening is not influenced; the energy density of the laser used for annealing is within the energy density range required by the recrystallization of the semi-tempered glass 1, so that the semi-tempered glass 1 can be recrystallized during annealing, and the surface compressive stress of the annealed part is reduced to the range capable of being cut, so that the cutting processing can be conveniently carried out at the position. In this embodiment, the parameters of the laser used for annealing are as follows: the wavelength is 532nm, the pulse width is 500ns, the repetition frequency is 30KHz, in other embodiments, the parameters of the annealing laser are not specifically limited, and the surface compressive stress of the annealed region is ensured to be less than 10 MPa.
Preferably, when two pieces of partially annealed semi-tempered glass 1 are bonded to a laminated glass via the intermediate layer 2, the annealed semi-tempered glass 1 is first cleaned and dried. Alternatively, the interlayer 2 is made of PVB (Polyvinyl butyl urethane). Before the middle layer 2 is adopted to bond the semi-toughened glass 1, the film drawing treatment is firstly carried out on the middle layer 2, for common laminated glass, the thickness of the middle layer 2 after film drawing is not less than 0.69mm, and for laminated glass with the requirement of sound insulation, the thickness of the middle layer 2 is not less than 0.71 mm. And after the PVB membrane is pulled, the PVB membrane can retract, preferably, after the membrane is pulled by the intermediate layer 2, the PVB membrane is placed in a humidity conditioning room and stays for a certain time, so that the PVB membrane can fully retract in the standing process, and the moisture content of the PVB membrane is controlled within the range of 0.3% -0.7%, so that two pieces of semi-tempered glass can be combined conveniently.
Because the laser beam 3 is not suitable for cutting the interlayer 2 made of PVB material, when a through hole is processed at the annealing position (namely the position of the through hole to be processed) of the laminated glass, the laser beam 3 and the high-pressure liquid column 4 are used for simultaneously cutting, the laser beam 3 is used for cutting the semi-toughened glass 1, and the high-pressure liquid column 4 can cut the interlayer 2. During cutting, the laser beam 3 cuts a hole on the semi-tempered glass 1, because the laser beam 3 has a certain diameter, an annular cutting track is formed on the semi-tempered glass 1, and the high-pressure liquid column 4 can contact with the intermediate layer 2 after passing through the annular cutting track, so that the intermediate layer 2 is cut under the action of high pressure. The laser beam 3 cuts the semi-tempered glass 1, the quality of a formed processing surface is good, the steps such as edge chamfering and the like are not needed, in addition, the emission direction of the laser beam 3 is easy to adjust, and the laser beam is convenient to adapt to the cutting of a through hole in curved laminated glass; in the laser cutting process, the temperature of the position around the through hole on the semi-tempered glass 1 can be raised, and the high-pressure liquid column 4 is hit on the heating position at the moment, so that the position can be rapidly cooled, the surface compressive stress value of the part of the semi-tempered glass 1 around the through hole can be increased, the strength of the part can be effectively improved, and the reduction of the part of the strength in the annealing process can be compensated. In this embodiment, the liquid used for the high-pressure liquid column 4 is water, and in other embodiments, the liquid used for the high-pressure liquid column 4 is not limited. Preferably, the pressure of the high-pressure liquid column 4 is P, wherein 1 MPa-P6 MPa. Within this pressure range it can be ensured that the water jet generates sufficient cutting force to effect cutting of the intermediate layer 2.
Specifically, as shown in fig. 3, the high-pressure liquid column 4 is annular, and the laser beam 3 is located in the middle of the annular high-pressure liquid column. In the cutting process, the laser beam 3 and the high-pressure liquid column 4 synchronously move along the same track, so that after the semi-tempered glass 1 is locally heated due to the cutting of the laser beam 3, the high-pressure liquid column can timely cool the part, thereby playing a strengthening role; the high-pressure liquid column 4 has a certain divergence from the laser beam, and therefore, the intermediate layer 2 can be cut by the circular cutting track left on the half tempered glass 1 by the laser beam. In the embodiment, the diameter of the laser beam 3 is D1, the diameter of the high-pressure liquid column 4 is D2, wherein D1 is more than or equal to 0.4mm and less than or equal to 0.6mm, D2 is more than or equal to 0.7mm and less than or equal to 0.9mm, and D2 is more than D1. The diameters of the laser beam 3 and the high-pressure water column 4 in the range can be used for processing the laminated glass with the thickness of the semi-tempered glass 1 being less than 6 mm. In other embodiments, the diameters of the laser beam 3 and the high-pressure liquid column 4 are not particularly limited, and may be appropriately adjusted according to parameters such as the thickness of the semi-tempered glass 1 and the thickness of the intermediate layer 2. Further, as shown in fig. 3, both sides of the laminated glass are provided with a laser beam 3 and a high-pressure liquid column 4 to simultaneously cut from both sides of the laminated glass, thereby improving the efficiency of processing through holes on the laminated glass.
As shown in fig. 4, the method for perforating laminated glass of the present invention comprises:
s1, cutting the plate glass into intermediate blanks with preset sizes;
s2, performing edge breaking, edge grinding and washing treatment on the middle blank;
s3, heating the intermediate blank, rolling the intermediate blank into a curved surface, cooling and tempering the curved surface into semi-tempered glass;
s41, performing laser annealing on the local position of the hole to be opened on the semi-tempered glass;
s42, drawing the PVB resin film to a proper thickness;
s43, placing the PVB resin after film drawing in a humidity conditioning room for retraction to form an intermediate layer;
s5, connecting and laminating two pieces of semi-tempered glass which are locally annealed by laser through the middle layer to form laminated glass;
and S6, punching the position to be punched of the laminated glass by adopting a laser beam and a high-pressure liquid column, and simultaneously performing the punching process from two sides of the laminated glass.
As shown in fig. 3, the present embodiment further provides a cutting tool, which is used for applying the above-mentioned method for perforating laminated glass, and the cutting workpiece includes a laser emission source, an inner cylinder 5 and an outer cylinder 6. Wherein, the laser emission source is used for launching laser beam 3, and inner tube 5 is connected in the laser emission source for the penetrating of laser beam 3 penetrates, and outer tube 6 cover is located inner tube 5, and the high pressure water passes through the passageway between inner tube 5 and outer tube 6 and discharges from the tip of outer tube 6 in order to form annular high pressure liquid column 4. And a laser beam 3 emitted by a laser emission source penetrates through the inner cylinder 5 and then is irradiated on the semi-tempered glass 1, so that the semi-tempered glass 1 is cut, and high-pressure water passes through a cavity between the inner cylinder 5 and the outer cylinder 6 to form an annular high-pressure liquid column 4 so as to cool a temperature rise part on the semi-tempered glass 1 and cut the intermediate layer 2. Preferably, the ends of the inner and outer cylinders 5, 6 are provided with water spray portions, the diameter of the high pressure liquid column 4 being adjustable by the size of the water spray portions. Specifically, in the present embodiment, the inner cylinder 5 is made of a ceramic material, and the outer cylinder 6 is made of a metal material. Preferably, in this embodiment, the laser emission source may be a JM150-AS40G type laser cutting device, and the laser cutting device includes a CCD vision system to position the profile of the laminated glass and ensure the accuracy of the cutting position.
The invention also provides laminated glass, and the laminated glass is provided with through holes processed by the punching method of the laminated glass. The laminated glass has high assembly precision and high connection reliability with other structures through the through holes. Specifically, the thickness, size, and shape of the laminated glass may be set according to actual needs or uses.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not to be construed as limitations of the embodiments of the present invention, but may be modified in various embodiments and applications by those skilled in the art according to the spirit of the present invention, and the content of the present description should not be construed as a limitation of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A method for perforating laminated glass is characterized by comprising the following steps:
processing plate glass into single-piece semi-tempered glass (1) with a preset shape and size;
carrying out laser annealing on a local position to be perforated on the semi-tempered glass (1);
connecting two pieces of semi-tempered glass (1) subjected to local annealing into laminated glass through an intermediate layer (2);
processing a through hole at the annealing position of the laminated glass; when a through hole is machined in the laminated glass, a laser beam (3) and a high-pressure liquid column (4) are adopted for simultaneously cutting, the laser beam (3) is used for cutting the semi-tempered glass (1), and the high-pressure liquid column (4) can cut the middle layer (2);
the high-pressure liquid column (4) is annular, and the laser beam (3) is positioned in the middle of the annular high-pressure liquid column (4); the diameter of the laser beam (3) is D1, the diameter of the high-pressure liquid column (4) is D2, wherein D1 is more than or equal to 0.4mm and less than or equal to 0.6mm, D2 is more than or equal to 0.7mm and less than or equal to 0.9mm, and D1 is more than or equal to D2; the pressure of the high-pressure liquid column (4) is P, wherein P is more than or equal to 1MPa and less than or equal to 6 MPa.
2. A method for perforating laminated glass as claimed in claim 1, characterized in that both sides of the laminated glass are provided with the laser beam (3) and the high-pressure liquid column (4) for simultaneous cutting from both sides of the laminated glass.
3. The method for perforating laminated glass according to claim 1, characterized in that the laser used for laser annealing is a nanosecond single pulse laser having an energy density within a threshold range of the energy density required for recrystallization of the semi-tempered glass (1).
4. The method for perforating laminated glass according to claim 1, characterized in that the semi-tempered glass (1) has a surface compressive stress σ, wherein 24MPa ≦ σ ≦ 69 MPa.
5. A method for perforating laminated glass as claimed in claim 1, characterized in that the step of processing the flat glass into a single piece of semi-tempered glass (1) comprises:
cutting the plate glass into an intermediate blank with a preset size; and
and heating the intermediate blank, rolling the intermediate blank into a curved surface, cooling and tempering.
6. A cutting tool for use in a method of perforating laminated glass as claimed in any of claims 1 to 5, the cutting tool comprising:
a laser emission source for emitting a laser beam (3);
the inner cylinder (5) is connected to the laser emission source, and the inner cylinder (5) is used for penetrating the laser beam (3);
and the outer cylinder (6) is sleeved on the inner cylinder (5), and high-pressure water passes through a channel between the inner cylinder (5) and the outer cylinder (6) and is discharged from the end part of the outer cylinder (6) to form an annular high-pressure liquid column (4).
7. A laminated glass characterized in that the laminated glass is provided with through holes processed by the method for punching a laminated glass according to any one of claims 1 to 5.
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| CN202010739399.0A CN111922527B (en) | 2020-07-28 | 2020-07-28 | Punching method and cutting tool for laminated glass and laminated glass |
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| CN202010739399.0A CN111922527B (en) | 2020-07-28 | 2020-07-28 | Punching method and cutting tool for laminated glass and laminated glass |
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| CN114261174B (en) * | 2021-12-30 | 2023-09-08 | 咸宁南玻节能玻璃有限公司 | Processing technology of ultra-thick laminated glass mounting hole |
| CN114516259B (en) * | 2022-01-29 | 2024-03-12 | 福耀玻璃工业集团股份有限公司 | Window glass and vehicle |
| DE102022203802A1 (en) | 2022-04-14 | 2023-10-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Method for processing a safety glass pane |
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