CN109702343B - Glass transparency controllable laser composite welding device and method - Google Patents
Glass transparency controllable laser composite welding device and method Download PDFInfo
- Publication number
- CN109702343B CN109702343B CN201910060979.4A CN201910060979A CN109702343B CN 109702343 B CN109702343 B CN 109702343B CN 201910060979 A CN201910060979 A CN 201910060979A CN 109702343 B CN109702343 B CN 109702343B
- Authority
- CN
- China
- Prior art keywords
- glass
- laser
- welding
- laser beam
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention specifically discloses a laser composite welding device with controllable transparency to glass, which comprises: a laser for generating a laser beam, an optical transmitter for transmitting the laser beam, a galvanometer scanner for focusing the laser beam, and a jig for fixing the overlapped glass weldment; the laser beam generated from the laser passes through the optical transmitter and the galvanometer scanner to the glass weldment secured to the fixture. The invention also discloses a laser composite welding method with controllable transparency to glass, which comprises the following steps: s1, fixing a plurality of overlapped glass welding pieces; s2, transmitting the focusing laser beam to a galvanometer scanner through an optical transmitter; s3, focusing, so that a focusing laser beam is focused on the interface between one glass welding piece and the other glass welding piece of the clamp; s4, generating a welding laser beam. The invention reduces the production cost and the welding difficulty, does not need optical contact, and can obtain high-quality welding glass with controllable transparency and small damage.
Description
Technical Field
The invention relates to the technical field of glass welding and laser, in particular to a laser composite welding device and method with controllable transparency to glass.
Background
Glass is used as a transparent material with excellent corrosion resistance and optical characteristics, and is widely applied to industries such as micro-electromechanical systems, microfluidics, optics, biomedical and the like. In practical applications, two or more pieces of glass are usually required to be connected.
Conventional attachment means such as adhesive bonding, optical contact, heat treatment, and the like. Often the adhesives lack long term stability due to degradation and thermal stresses develop in the case of heat treatment, making these methods unsuitable for certain applications. The laser welding processing precision is high, the processing process is flexible, the welding quality is high, the welding area can be accurately controlled, the influence on the mechanical properties of glass is small, and the method is an important method and development trend of glass welding.
The existing glass laser welding method mainly uses ultrashort pulse lasers (such as picosecond and femtosecond lasers) to weld glass without welding flux. The welding equipment used by the method is high in price, the requirements on the surface quality and the assembly quality of the glass are high during welding (the two pieces of glass are required to be attached to achieve optical contact during welding, the distance between the two pieces of glass is smaller than lambda/4, lambda is the wavelength), and the glass is easy to damage, so that the welding effect is seriously affected. When the ultra-short laser pulse is used for welding the glass, the transparency of the welding area of the glass is greatly damaged, the transparency of the welding area is obviously reduced, and even the completely opaque welding area can be obtained, so that the optical characteristics of the glass are seriously influenced.
Disclosure of Invention
In view of the above, it is necessary to provide a laser hybrid welding device and method with controllable transparency to glass, so as to solve the technical problems of high assembly requirement, large welding damage, uncontrollable transparency of welding area and high cost in the existing glass welding technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a laser hybrid welding device with controllable transparency to glass, which is applied to a plurality of glass welding pieces, and comprises: a laser for generating a laser beam, an optical transmitter for transmitting the laser beam, a galvanometer scanner for focusing the laser beam, and a jig for fixing a plurality of overlapped glass weldments; the laser beam generated from the laser passes through the optical transmitter and the galvanometer scanner to the glass weldment secured to the fixture.
Further, the clamp comprises a mounting seat and at least two magnetic blocks; a concave area or a hollowed-out area is formed in the middle of the mounting seat; the glass welding piece is arranged on the mounting seat; the welding area of the glass welding piece is positioned above the concave area or the hollowed-out area; each magnetic block is arranged on the edge part of the top surface of the glass welding piece and is positioned above the mounting seat.
Further, the laser is a continuous laser, a millisecond laser, a microsecond laser, or a nanosecond laser.
A laser composite welding method with controllable transparency to glass, which is applied to the laser composite welding device with controllable transparency to glass, and comprises the following steps:
s1, fixing a plurality of overlapped glass welding pieces through a clamp;
s2, controlling a laser to generate a focusing laser beam, wherein the focusing laser beam is transmitted to a galvanometer scanner through an optical transmitter;
s3, focusing the focusing laser beam through a galvanometer scanner, so that the focusing laser beam is focused on the interface between one glass welding piece and the other glass welding piece which are fixed on the clamp;
s4, controlling a laser to generate a welding laser beam.
Further, the method further comprises the following steps before the step S1:
s101, cleaning a glass welding piece to be welded;
s102, drying the cleaned glass welding piece;
s103, coating a piece of dried glass welding piece;
and S104, attaching one piece of coated glass welding piece to the other piece of cleaned and dried uncoated glass welding piece, wherein the film layer of the coated glass welding piece is positioned between the two pieces of glass welding pieces.
Further, in S104, the coated glass weldment is positioned below another cleaned and dried uncoated glass weldment.
Further, in S1, the glass weldment is an aluminum silicon steel glass or a soda-lime silicate glass or a borosilicate glass or a doped glass.
Further, in S103, the coating layer of the glass welding member is a titanium metal film, a nickel metal film, a zinc metal film, an aluminum metal film, a copper metal film, a titanium nitride film or an aluminum oxide film.
Further, in S103, the plating method is physical vapor deposition, chemical vapor deposition or sol-gel.
Further, in S103, the kind and thickness of the coating layer of the glass to be welded are controlled, so as to control the transparency of the glass after the welding is completed;
in S4, the transparency of the glass after the welding is completed is controlled by controlling the laser welding parameters of the laser.
The beneficial effects of the invention are as follows:
compared with the prior art, the invention greatly reduces the damage rate to the glass, reduces the bonding requirement to the glass and does not need to achieve optical contact; the laser adopted by the invention is a continuous laser, a millisecond laser, a microsecond laser or a nanosecond laser, so that the production cost is greatly reduced; the invention can control the transparency of the glass welding area and has little influence on the optical characteristics of the glass.
The invention reduces the production cost of glass welding, and compared with expensive picosecond and femtosecond laser welding equipment, the continuous nanosecond laser equipment has low cost; the invention reduces the difficulty of realizing glass welding, and when the picosecond or femtosecond laser equipment is used for welding glass, the requirements on the bonding of two pieces of glass are high, and optical contact is required, and when the method is used for welding, only the bonding is required to be tight, so that the high-quality welding glass with controllable transparency and small damage can be obtained.
Drawings
FIG. 1 is a schematic view of a laser hybrid welding apparatus with controllable transparency to glass according to the present invention;
FIG. 2 is a schematic view of the installation of two glass weldments and laser focusing in accordance with the present invention;
FIG. 3 is a schematic view of the installation of a glass weldment and a fixture in accordance with the present invention;
FIG. 4 is a schematic view of a mounting base according to the present invention;
FIG. 5 is a flow chart of the process of the present invention for laser hybrid welding with controllable transparency to glass in example 7;
FIG. 6 is a flow chart of the process of the present invention for laser hybrid welding with controllable transparency to glass in example 8;
FIG. 7 is a schematic view of another embodiment of a glass transparency controllable laser hybrid welding apparatus according to the present invention;
reference numerals illustrate:
a laser-1; optical conductor-2; vibrating mirror scanner-3; a clamp-4; a workbench-5; mounting base-41; magnetic block-42; mirror-21.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further clearly and completely described in the following in conjunction with the embodiments of the present invention. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first", "a second", "a third" or a fourth "feature may explicitly or implicitly include one or more of such features.
Example 1
As shown in fig. 1 to 4, a laser hybrid welding apparatus with controllable transparency to glass is applied to a plurality of glass weldments, the laser hybrid welding apparatus comprising: a laser 1 for generating a laser beam, an optical transmitter 2 for transmitting the laser beam, a galvanometer scanner 3 for focusing the laser beam, and a jig 4 for fixing a plurality of overlapped glass weldments; the laser beam generated from the laser 1 passes through the optical transmitter 2 and the galvanometer scanner 3 to reach the glass weldment fixed on the fixture 4;
the concrete working engineering is as follows: the laser 1 generates laser beams with the wavelength of 1064nm, the laser beams enter the galvanometer scanner 3 after being conducted by the optical conductor 2, the galvanometer scanner 3 focuses the laser beams and then forms light spots on the surface of a glass welding piece to be welded, and then welding is carried out, and the clamp 4 is used for fixing the glass welding piece to enable the glass welding piece to be tightly attached.
Example 2
Example 2 is a further optimization of example 1;
as shown in fig. 1-2, the laser hybrid welding device further comprises a workbench 5; the clamp 4 is mounted on a table 5.
Example 3
Example 3 is a further optimization of example 1;
as shown in fig. 1-4, the clamp 4 comprises a mounting seat 41 and at least two magnetic blocks 42; a concave area or a hollowed-out area is formed in the middle of the mounting seat 41; the glass welding piece is arranged on the mounting seat 41; the welding area of the glass welding piece is positioned above the concave area or the hollowed-out area; each magnetic block 42 is arranged on the edge part of the top surface of the glass welding piece and is positioned above the mounting seat 41; specifically, the mount pad 41 is magnetism metal support, the magnetic block 42 is superstrong magnet, glass weldment is two glass samples that wait to weld, and two wait to weld glass weldment both ends are located between mount pad 41 and the magnetic block 42, the magnetic force that mount pad 41 and magnetic block 42 produced makes two pieces of glass laminating that wait to weld inseparable, reaches fixed glass and makes its effect that laminating is inseparable, simultaneously in the middle of the anchor clamps 4 be hollow area for the laser beam can pass through and wait to weld glass and make wait to weld glass not influenced by workstation 5 reflection laser.
Further, as shown in fig. 4, at least two sinking tables are arranged on the top surface of the fixture 4 around the hollowed-out area, and are used for placing a plurality of overlapped glass welding pieces (as shown in fig. 2, it is preferable that the two glass welding pieces are overlapped together).
Example 4
Example 4 is a further optimization of example 1;
as shown in fig. 1 and 7, the optical transmitter 2 includes at least one reflecting mirror 21; the reflecting mirror is used for reflecting the laser beam generated by the laser 1 to the galvanometer scanner 3; the reflecting mirror 21 is arranged at an included angle with the laser beam.
Example 5
Example 5 is a further optimization of example 1;
as shown in fig. 1 and 7, the galvanometer scanner 3 is a converging lens.
Example 6
Example 6 is a further optimization of example 1;
as shown in fig. 1, the laser 1 is a continuous laser, a millisecond laser, a microsecond laser, or a nanosecond laser.
Example 7
As shown in fig. 1 and 5, a method for laser hybrid welding with controllable transparency to glass is applied to the laser hybrid welding device with controllable transparency to glass, and the method comprises the following steps of S1-4:
s1, fixing a plurality of overlapped glass welding pieces through a clamp 4; specifically, two glass weldments to be welded are fixed and clamped by using the clamp 4, so that the two glass weldments are tightly attached and kept horizontal.
S2, controlling the laser 1 to generate a focusing laser beam, wherein the focusing laser beam is conducted to the galvanometer scanner 3 through the optical conductor 2; specifically, a laser beam with the wavelength of 1064nm is generated by a laser, and is transmitted by the optical transmitter 2 and then is emitted into the galvanometer scanner 3; specifically, the laser has the power of 20W, the wavelength of 1064nm, the pulse width of 200ns, the repetition frequency of 20-80 KHz and the scanning mode of line scanning and the line spacing of 20-80 mu m.
S3, focusing the focusing laser beam through a galvanometer scanner 3, so that the focusing laser beam is focused on the interface between one glass welding piece and the other glass welding piece which are fixed on the clamp 4;
specifically, the galvanometer scanner 3 focuses the laser beam so that the laser beam is focused at the interface of the surfaces of two glass weldments to be welded which have been fixed by the jig 4 (specifically, so that the focus is located exactly on the plating layer);
specifically, the focusing process described in S3 is as follows:
because the refractive indexes of the glass and the air are different, besides the visual methods of direct focusing and the like of CCD image sensing equipment, an object with the same thickness as the lower glass layer can be placed on the clamp, the laser focus is focused on the surface of the object, and then the focal length required to be adjusted is calculated according to the formula, and the following formula can be adopted for calculation:
z in the formula (1) is the distance to be adjusted upwards, d is the thickness of the upper glass, n 1 Is the refractive index of the upper glass.
S4, controlling the laser 1 to generate a welding laser beam; specifically, welding parameters are set in laser control software for controlling the laser 1, and welding is performed after the setting is completed, so that the transparency of a welding area is controlled; specifically, the power of the laser 1 is 4W, the welding speed is 40mm/s, the frequency is 40KHz, the scanning mode is line scanning, the line spacing is 0.04m, and the welding is implemented after the setting is completed; the welding parameters include laser scanning speed, output power, repetition frequency, scanning mode and filling spacing.
Example 8
Example 8 is a further optimization of example 7;
as shown in fig. 1 and 6, the following steps are further included before S1:
s101, cleaning a glass welding piece to be welded; specifically, placing a glass welding piece to be welded in a container filled with absolute ethyl alcohol or acetone, and ultrasonically cleaning for 5-10 minutes;
s102, drying the cleaned glass welding piece; specifically, placing the cleaned glass welding piece to be welded in a vacuum drying oven for drying;
s103, coating a piece of dried glass welding piece; specifically, the coating layer is titanium (Ti) film, nickel (Ni) film, zinc (Zn) film, aluminum (A1) film, copper (Cu) film, titanium nitride (TiN) film, aluminum oxide (AlO) 3 ) Metal and nonmetal films such as films with thickness of 5-500 nm;
preferably, the plating method used may be a physical vapor deposition method, a chemical vapor deposition method, a sol-gel method, or the like;
preferably, the coating layer is a titanium (Ti) metal film with the thickness of 40nm; the film layer is too thin, the laser transmittance is too high, the absorbed energy is too little, and the welding cannot be realized; too thick a film layer has too low laser transmittance, too much absorbed energy and too poor welding quality;
preferably, a titanium metal film with the thickness of 5-500 nm is plated on the surface of the dried glass welding piece by using a coating device (a vacuum evaporation coating machine is preferred in the embodiment);
and S104, attaching one piece of coated glass welding piece to the other piece of cleaned and dried uncoated glass welding piece, wherein the film layer of the coated glass welding piece is positioned between the two pieces of glass welding pieces.
Example 9
Example 9 is a further optimization of example 8;
as shown in fig. 1 and 6, in S104, the coated glass weldment is positioned below another cleaned and dried uncoated glass weldment.
Example 10
Example 10 is a further optimization of example 7;
as shown in fig. 1 and 5, in S1, the glass weldment is aluminum silicon steel glass, soda-lime silicate glass, borosilicate glass, doped glass, or the like. Preferably, the thickness of the glass welding piece is less than or equal to 5mm.
Example 11
Example 11 is a further optimization of example 7;
as shown in fig. 1 and 5, in S1, the fixture 4 is used to tightly adhere two pieces of glass to be welded by using the magnetic force provided by the metal bracket and the super-strong magnet, and the middle area is kept as a hollow area, so as to prevent the damage to the sample caused by the laser reflected by the surface of the fixture; in step S1, the transparency of the welded area can be controlled by controlling the thickness of the plating layer and the type of plating layer.
Example 12
Example 12 is a further optimization of example 7;
as shown in fig. 1 and 5, in S1, in addition to the means for fixing the plurality of overlapped glass weldments by the jig 4, the method further includes: and (3) coupling and connecting a plurality of overlapped glass welding pieces through other heat sources (laser, induction heating, arc or spark plasma sintering and the like) so as to increase the fitting degree of glass to be welded.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The laser composite welding method with controllable transparency to glass is applied to a laser composite welding device with controllable transparency to glass, and the laser composite welding device with controllable transparency to glass comprises the following steps: a laser for generating a laser beam, an optical transmitter for transmitting the laser beam, a galvanometer scanner for focusing the laser beam, and a jig for fixing a plurality of overlapped glass weldments; the laser beam generated by the laser reaches the glass welding piece fixed on the fixture through the optical conductor and the galvanometer scanner;
characterized in that the method comprises the following steps:
s1, fixing a plurality of overlapped glass welding pieces through a clamp;
s2, controlling a laser to generate a focusing laser beam, wherein the focusing laser beam is transmitted to a galvanometer scanner through an optical transmitter;
s3, focusing the focusing laser beam through a galvanometer scanner, so that the focusing laser beam is focused on the interface between one glass welding piece and the other glass welding piece which are fixed on the clamp; firstly, placing an object with the same thickness as the lower glass layer on a clamp, focusing a laser focus on the surface of the object, calculating a focal length to be adjusted according to a formula, and calculating by adopting the following formula:
z in the formula (1) is the distance to be adjusted upwards, d is the thickness of the upper glass, n 1 Is the refractive index of the upper glass;
s4, controlling a laser to generate a welding laser beam;
the clamp comprises a mounting seat and at least two magnetic blocks; the mounting seat is a magnetic metal support, and a concave area or a hollowed-out area is formed in the middle of the mounting seat; the glass welding piece is arranged on the mounting seat; the welding area of the glass welding piece is positioned above the concave area or the hollowed-out area; each magnetic block is arranged on the edge part of the top surface of the glass welding piece and is positioned above the mounting seat, and the magnetic force generated by the mounting seat and the magnetic block enables the two pieces of glass to be welded to be tightly attached.
2. The method of claim 1, wherein the laser is a continuous laser, a millisecond laser, a microsecond laser, or a nanosecond laser.
3. The method for laser hybrid welding with controllable transparency to glass according to claim 1, further comprising the step of, prior to S1:
s101, cleaning a glass welding piece to be welded;
s102, drying the cleaned glass welding piece;
s103, coating a piece of dried glass welding piece;
and S104, attaching one piece of coated glass welding piece to the other piece of cleaned and dried uncoated glass welding piece, wherein the film layer of the coated glass welding piece is positioned between the two pieces of glass welding pieces.
4. A method of laser hybrid welding with controlled transparency to glass according to claim 3 wherein in S104 the coated glass weldment is positioned below another cleaned and dried uncoated glass weldment.
5. The method of claim 1, wherein in S1, the glass weldment is an aluminum silicon steel glass, a soda-lime silicate glass, a borosilicate glass, or a doped glass.
6. The method according to claim 3, wherein in S103, the coating layer of the glass welded part is a titanium metal film, a nickel metal film, a zinc metal film, an aluminum metal film, a copper metal film, a titanium nitride film or an aluminum oxide film.
7. The method of claim 3, wherein in S103, the coating method is physical vapor deposition, chemical vapor deposition or sol-gel method.
8. The method for hybrid welding with controllable transparency to glass according to claim 3, wherein in S103, the transparency of the glass after the welding is completed is controlled by controlling the type and thickness of the coating layer of the glass to be welded;
in S4, the transparency of the glass after the welding is completed is controlled by controlling the laser welding parameters of the laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060979.4A CN109702343B (en) | 2019-01-22 | 2019-01-22 | Glass transparency controllable laser composite welding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060979.4A CN109702343B (en) | 2019-01-22 | 2019-01-22 | Glass transparency controllable laser composite welding device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109702343A CN109702343A (en) | 2019-05-03 |
| CN109702343B true CN109702343B (en) | 2023-10-20 |
Family
ID=66262597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910060979.4A Active CN109702343B (en) | 2019-01-22 | 2019-01-22 | Glass transparency controllable laser composite welding device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109702343B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560896A (en) * | 2019-08-23 | 2019-12-13 | 大族激光科技产业集团股份有限公司 | laser welding device and welding method thereof |
| CN111702330A (en) * | 2020-05-15 | 2020-09-25 | 华南师范大学 | Welding system and welding method for copper-plated glass |
| CN112851098A (en) * | 2021-01-14 | 2021-05-28 | 南京大学 | Atomic gas chamber preparation device and method based on ultrashort pulse laser |
| CN114538798A (en) * | 2021-12-20 | 2022-05-27 | 中国科学院上海光学精密机械研究所 | Method for reducing gap of glass sample by using high-voltage direct-current power supply and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105073671A (en) * | 2012-11-30 | 2015-11-18 | 康宁股份有限公司 | Glass sealing with transparent materials having transient absorption properties |
| CN106495454A (en) * | 2016-12-19 | 2017-03-15 | 华南师范大学 | Picosecond laser glass solder system and method |
| CN107382044A (en) * | 2017-06-15 | 2017-11-24 | 江苏大学 | A kind of method of thin transparent glass laser transmission welding |
| CN108581188A (en) * | 2018-06-21 | 2018-09-28 | 华中科技大学 | A kind of recombination laser welds the method and device of transparent fragile material |
| CN108723595A (en) * | 2018-04-26 | 2018-11-02 | 华南师范大学 | A kind of ultrafast laser welder and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201401421D0 (en) * | 2014-01-28 | 2014-03-12 | Univ Dundee | Welded glass product and method of fabrication |
-
2019
- 2019-01-22 CN CN201910060979.4A patent/CN109702343B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105073671A (en) * | 2012-11-30 | 2015-11-18 | 康宁股份有限公司 | Glass sealing with transparent materials having transient absorption properties |
| CN106495454A (en) * | 2016-12-19 | 2017-03-15 | 华南师范大学 | Picosecond laser glass solder system and method |
| CN107382044A (en) * | 2017-06-15 | 2017-11-24 | 江苏大学 | A kind of method of thin transparent glass laser transmission welding |
| CN108723595A (en) * | 2018-04-26 | 2018-11-02 | 华南师范大学 | A kind of ultrafast laser welder and method |
| CN108581188A (en) * | 2018-06-21 | 2018-09-28 | 华中科技大学 | A kind of recombination laser welds the method and device of transparent fragile material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109702343A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109702343B (en) | Glass transparency controllable laser composite welding device and method | |
| CN103170744B (en) | Laser soldering device and welding method | |
| Richter et al. | Bonding of glass with femtosecond laser pulses at high repetition rates | |
| CN110655307B (en) | Laser welding device and process method for realizing glass packaging | |
| CN109530919A (en) | A kind of the multi-beam laser fuse increasing material manufacturing equipment and method of ultrasonic wave added | |
| CN101590570A (en) | A kind of method of welding tube type heat exchanger by using laser scanning and device | |
| CN202021424U (en) | Laser wire filling welding machine with non-stable cavity and coaxial wire feed | |
| CN108581188B (en) | Method and device for welding transparent brittle material by composite laser | |
| CN102500919A (en) | Dual-laser beam hybrid welding device and hybrid welding method | |
| KR20140113878A (en) | Improved thermal processing with line beams | |
| CN102896419A (en) | Double-laser beam compound welding device and use method thereof | |
| JP2018514393A (en) | Joining apparatus and joining method | |
| US20210276128A1 (en) | Butt welding with ultrashort pulse laser beams, and optical elements joined together from individual parts | |
| CN103862173A (en) | High-speed laser welding method for invar film | |
| CN1962155A (en) | CO2 laser welding apparatus | |
| CN201205636Y (en) | Apparatus for welding tubular heat exchanger by laser scanning | |
| CN113199143A (en) | Double-light-path ultrafast laser welding device based on beam shaping and processing method | |
| CN109909610A (en) | A kind of welding method and welding system of silicon wafer and glass | |
| CN110560896A (en) | laser welding device and welding method thereof | |
| WO2020133733A1 (en) | Rivetless micro-riveting device | |
| CN110788486B (en) | Systematic precision machining method for brittle transparent material special-shaped 3D structure | |
| CN113387601A (en) | Method for improving glass welding strength with assistance of high-vacuum magnetron sputtering interface | |
| CN116890168A (en) | Method and apparatus for welding transparent material and metal material | |
| CN116079175A (en) | Large-gap metal-glass laser composite welding device | |
| CN110856886A (en) | Soldering method for connecting a transparent first substrate and a non-transparent second substrate and use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |