CN109128501A - Laser soldering device - Google Patents
Laser soldering device Download PDFInfo
- Publication number
- CN109128501A CN109128501A CN201811056639.6A CN201811056639A CN109128501A CN 109128501 A CN109128501 A CN 109128501A CN 201811056639 A CN201811056639 A CN 201811056639A CN 109128501 A CN109128501 A CN 109128501A
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- Prior art keywords
- nozzle
- adjusting rod
- gas
- turntable
- laser
- 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.)
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Classifications
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
-
- 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
- B23K26/142—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 for the removal of by-products
-
- 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
- B23K26/1462—Nozzles; Features related to nozzles
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
A kind of laser soldering device provided by the invention, including laser welding system and gas protection system；Wherein gas protection system includes: adapter, and adapter is connected on the plumb joint of laser welding system；One end of tracheae, tracheae is connect with adapter；The other end of gas source, gas source and tracheae connects；Can flexible bending plastic tube, can one end of plastic tube of flexible bending be connected to one end of tracheae；Nozzle, nozzle be arranged in can flexible bending plastic tube the other end；Can flexible bending plastic tube the other end on be equipped with insulation coupling tube, nozzle by be insulated coupling tube be arranged in can the flexible plastic tube bent the other end.Compared with prior art; beneficial effects of the present invention are as follows: by forming inert gas space in laser action region attachment; realize that pahtfinder hard is servo-actuated gas shield; both the plasma cloud above welding region had effectively been blown down; the coupling effect of laser beam and metal works is improved, and effective protection is also in the weld seam of the condition of high temperature.
Description
Technical field
The present invention relates to laser welding field more particularly to a kind of laser soldering devices.
Background technique
Laser welding has obtained increasingly wider as a kind of accurate, efficient, quick welding method in aerospace field
General application.Laser welding can simply be summarized as such process: the laser beam focused first is irradiated to surface of workpiece,
Generation is melted after metal work piece materials absorb laser, and after metal works and laser beam relative motion, molten metal workpiece is swashing
Light beam leaves rear solidification and crystallization, forms weld seam.Laser welding divides thermal conductivity weldering and deep penetration welding both of which, wherein deep penetration welding occurs
Material fusing, gasification and plasma, and have keyhole effect, welding seam deep width ratio is big, be the main of laser welding industrial application
Method.
In above-mentioned deep penetration welding, full of because of plasma made of high-temperature steam partial ionization in aperture, aperture goes out
Also a certain range of plasma cloud is formed above mouthful, plasma cloud can generate laser beam by reverse drag anticline and refraction
Screen effect influences the coupling of laser beam and metal works, causes a large amount of light energy to be lost, to influence welding penetration and weldering
Termination process stability needs to blow down.On the other hand, if do not protected, air can pollute the molten bath ingredient of laser welding, and pole
The mechanical property of big reduction weld seam；Some high activity metals such as titanium alloy, the oxygen uptake since 250 DEG C are inhaled since 400 DEG C
Hydrogen inhales nitrogen since 600 DEG C, and not only welding pool can reduce performance by air pollution, is in the condition of high temperature after the solidification of molten bath
When, also suffering from air pollution causes surface texture brittle, and joint mechanical property deteriorates.
To solve the above-mentioned problems, inert gas or active gases are generallyd use at present, and specific gas is blown out by nozzle
Plasma cloud is blown down, and the protection atmosphere for forming covering molten bath realizes protection, for some high activity metals such as titanium alloy,
Cover the weld seam after welding pool and solidification also in the condition of high temperature by way of nozzle plus support cover, nozzle be used to blow down etc. from
Daughter cloud drags cover to be used to protect the weld seam also in the condition of high temperature.Due to the limitation of protection support cover structure, nozzle adds support to cover
Method is only applicable to simply grow straight longitudinal seam welding, seems helpless to the weld seam of path complexity.Publication No.
CN104588882B has invented a kind of laser-beam welding machine with inert gas protection system, preferably realizes and closes to including titanium
Also in the protection of the weld seam of the condition of high temperature after the welding pool of metal works laser welding including gold and solidification.But the invention
Significant discomfort should continuous long weld seam operation or the higher operating condition of cyclic duration factor.The reason is that: laser welding is a superhigh temperature
Rapidly Thermal Cycling, laser welding small hole center regional temperature are up to 10000K, and the nozzle of the gas protection system is in
In the strong thermal radiation range of weld seam after plasma cloud, molten bath and solidification in the condition of high temperature, the operation of continuous long weld seam
Or under the higher working condition of cyclic duration factor, nozzle temperature easily rises to 200 DEG C or more, and the fusing point of plastics is general only
There are 200 DEG C~300 DEG C, temperature is easily excessively high and plastics softening is caused even to be melted, the Publication No. CN104588882B
Plastics and metallic nozzle belong to the state of being directly connected to, nozzle by can flexible bending plastic tube and be vacantly present in specific bit
Set, will lead to two problems: first is that nozzle because can flexible bending plastic tube and the softening of nozzle contact site even melt, and
Gravity and easily fall off, cause gas protection system that cannot work, and lose to laser welding gas shield effect；Two
It is that the plastic tube long-time that flexible can be bent is exposed in violent heat radiation environment, entirety softens and cannot accurately maintain to spray
The spatial position of mouth and spatial attitude, cause protecting effect bad or even sagging can occur under the action of self-weight in nozzle
And scrape to welding pool and then pollute molten bath, or shelter from the laser beam of directive metal works by laser beam scaling loss, it leads
Cause gas protection system cisco unity malfunction.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of solution long-time high power lasers to weld shape
Under state, the plastic tube softening even Melting Problem that flexible can be bent caused by the nozzle overheat of gas protection system improves gas
The laser soldering device of the high temperature tolerance Stability and dependability of protection system.
In order to solve the above technical problems, a kind of laser soldering device provided by the invention, including laser welding system and gas
Body protects system；Wherein
The gas protection system includes:
Adapter, the adapter are connected on the plumb joint of the laser welding system；
Tracheae, one end of the tracheae are connect with the adapter；
Gas source, the gas source are connect with the other end of the tracheae；
Can flexible bending plastic tube, it is described can one end of plastic tube of flexible bending be connected to one end of the tracheae；
Nozzle, the nozzle be arranged in it is described can flexible bending plastic tube the other end；
It is characterized in that, described insulation coupling tube, the nozzle can be equipped on the other end of the flexible plastic tube bent
By the insulation coupling tube be arranged in it is described can flexible bending plastic tube the other end.
Preferably, the material of the insulation coupling tube is phenolic resin.
Preferably, size of the nozzle close to the end face of metal works along welding direction is greater than 20 millimeters.
Preferably, the nozzle and it is described can the section of connecting pin of plastic tube of flexible bending be circle；
Groove is offered on the free end of the nozzle；
The through-hole passed through for the laser beam is equipped with close to one end of laser beam in the groove；Wherein
The gradient of the groove is 30 degree, and the through-hole is that vertical state projection size is 10 millimeters of through-holes of diameter；
The baseplane of the nozzle and metal works upper surface keeping parallelism and vertical distance range are 1 millimeter~3 millimeters；
The angular range of the vertical plane of the nozzle and metal works is 70 degree~75 degree；
The horizontal distance range of the through hole center of laser beam and the nozzle is 0 millimeter~3 millimeters；
The flow velocity of the gas of the gas source is 40 liters/min~50 liters/min.
Preferably, cooling system, the fixed cooling system and the gas shield are connected and fixed on the plumb joint
System connection, the fixed cooling system include:
Bindiny mechanism, the bindiny mechanism are connected on the plumb joint；
One end of first adjusting rod, first adjusting rod is connect with the bindiny mechanism；
Second adjusting rod, one end of second adjusting rod are connect with the other end of first adjusting rod, and described second
The other end of adjusting rod is connect with the nozzle.
Preferably, one end of first adjusting rod is connect by single hole hoop component with the bindiny mechanism；
The other end of second adjusting rod is connect by diplopore hoop component with the nozzle.
Preferably, adjusting group is equipped between one end of second adjusting rod and the other end of first adjusting rod
Part, the adjusting component include:
First turntable；
Second turntable, second turntable and first turntable are coaxially disposed；
Adjustment hole, the adjustment hole are circumferentially disposed at described around the center of circle of first turntable and second turntable
On one turntable and second turntable；
Regulating part, the regulating part are arranged in the adjustment hole.
Preferably, first adjusting rod and second adjusting rod are hollow tube.
Preferably, the single hole clip, first adjusting rod, second adjusting rod, first turntable, described
The material of two turntables, the single hole hoop component and the diplopore hoop component is brass.
Preferably, the protective gas in the gas protection system is Ar+CO2Mixed gas, Ar+O2Mixed gas, Ar,
He Ar+He mixed gas.
Compared with prior art, beneficial effects of the present invention are as follows:
By forming inert gas space in laser action region attachment, the realization servo-actuated gas shield of pahtfinder hard ° is existing
The plasma cloud of effect blown down above welding region, improves the coupling effect of laser beam and metal works, and effective protection is also
Weld seam in the condition of high temperature.
It is good by insulation coupling tube by the way that insulation coupling tube can be being increased between the plastic tube and nozzle of flexible bending
Heat-insulating property and high temperature strength performance can solve nozzle due to overheat, and causing can the flexible plastic tube and nozzle bent
There is softening even Melting Problem in the position of contact.
It is the good of brass by material of main part by increasing fixed cooling system on the one hand by heat-conduction principle
Large specific surface area in the structures such as heating conduction and tubing, clip and the good feature of thermal diffusivity, strengthen the cooling to nozzle
Effect weakens nozzle caused by nozzle generates heat and falls off tendency.On the other hand can spatial position to nozzle and posture play just
Property fixed function so that even if can the plastic tube of flexible bending soften be able to maintain nozzle be in specified spatial position and
Posture.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature mesh of the invention
And advantage will become more apparent upon.
Fig. 1 is laser soldering device structural schematic diagram of the present invention.
In figure:
1- laser welding system 2- gas protection system 3- fixes cooling system
101- plumb joint 102- laser beam 201- gas source
202- tracheae 203- adapter 204- can the flexible plastic tube bent
205- is insulated coupling tube 206- nozzle 301- bindiny mechanism
302- single hole clip 303- single hole fastening screw the first adjusting rod of 304-
305- the first turntable 306- the second turntable 307- the first turntable fastening screw
308- the second turntable fastening screw 309- the second adjusting rod 310- diplopore fastening screw
311- diplopore clip 312- nozzle fastening screw
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
As shown in Figure 1, a kind of laser soldering device of the invention, including 2 He of laser welding system 1 and gas protection system
Fixed cooling system 3, laser welding system includes plumb joint 101 and laser beam 102；Gas protection system 2 is by gas source 201, gas
Pipe 202, adapter 203, can plastic tube 204, insulation coupling tube 205 and the nozzle 206 of flexible bending be sequentially connected.Fixed heat dissipation
System 3 is by bindiny mechanism 301, single hole clip 302, single hole fastening screw 303, the first adjusting rod 304, with kidney-shaped adjustment hole
One turntable 305, the second turntable 306 with kidney-shaped adjustment hole, the first turntable fastening screw 307, the second turntable fastening screw 308,
Second adjusting rod 309, diplopore fastening screw 310, diplopore clip 311, nozzle fastening screw 312 are connected in sequence.
Adapter 203 is fixedly attached on the outer wall of plumb joint 101, is served to gas protection system 2 and is supported and fixed.
It can vertical range and and laser beam of the flexible plastic tube 204 bent for tentatively adjusting nozzle 206 and welding metal workpiece 4
102 horizontal distance.Gas protection system 2 by the gas of gas source 201 flow through tracheae 202, adapter 203, can flexible bending
Plastic tube 204, insulation coupling tube 205 and nozzle 206, blow to the welding position that laser beam 102 is irradiated on metal works 4, blow
Except the photo plasma cloud that laser weld pools overlying regions are formed, and to welding pool and close in the condition of high temperature
Welded seam area is protected.
Single hole fastening screw 303 passes through one end that single hole clip 302 fixes the first adjusting rod 304, diplopore fastening screw 310
One end of the second adjusting rod 309 is fixed across a hole of diplopore clip 311, nozzle fastening screw 312 passes through diplopore clip 311
Another hole fixed nozzle 206.When single hole fastening screw 303 is in releasing orientation, the first adjusting rod 304 can be in single hole
It stretches or rotates in the hole of clip 302, when diplopore fastening screw 310 is in releasing orientation, the second adjusting rod 309 can be double
It stretches or rotates in the hole of hole clip 311, the first turntable fastening screw 307 and the second turntable fastening screw 308 are in and unclamp
When state, the first turntable 305 with kidney-shaped adjustment hole and the second turntable 306 with kidney-shaped adjustment hole can be used for relative rotation
Adjust the angled relationships of the first adjusting rod 304 and the second adjusting rod 309.Bindiny mechanism 301 is fixedly attached to the outer of plumb joint 101
On wall, fixed cooling system 3 is served and is supported and fixed.Diplopore clip 311 may be implemented to nozzle in above-mentioned comprehensive function
206 clip position is adjustable.
It is insulated coupling tube 205 and selects bakelite phenolic resin material, take into account strong with good heat-insulating property and high temperature resistant
Spend performance.
One end section of nozzle 206 is regular circle shapes, is connect with insulation coupling tube 205, the other end is free end, free end
30 degree of groove is offered, it is 10 millimeters of through-holes of diameter that groove, which is machined with vertical state projection size close to one end of laser beam,
For passing through for laser beam 102.
Size of the nozzle 206 close to the end face of metal works 4 along welding direction is greater than 20 millimeters, can be in laser welding height
When active metal such as titanium or titanium alloy, it is ensured that gas shield range can cover molten bath and the face of weld in the condition of high temperature.
Single hole clip 302, the first adjusting rod 304, the first turntable 305 with kidney-shaped adjustment hole, with kidney-shaped adjustment hole
Two turntables 306, the second adjusting rod 309, diplopore clip 311 and nozzle 206 select brass material, realize good thermal conductivity and
High temperature strength performance.
First adjusting rod 304 and the second adjusting rod 309 are all made of hollow tube, realize low cost, lightweight, specific surface area
Big feature.
The baseplane of nozzle 206 and 4 upper surface keeping parallelism of metal works and vertical distance range are as follows: 1 millimeter~3 millis
Rice；Also, nozzle 206 and the angular range of the vertical plane of metal works 4 are: 70 degree~75 degree.
The horizontal distance range of laser beam 102 and 206 through hole center of nozzle is 0 millimeter~3 millimeters；The gas of gas source 201
Flow velocity be 40 liters/min~50 liters/min.
Protective gas used in gas protection system 2, using active gases or inert gas, active gases refers to Ar
+CO2Mixed gas or Ar+O2Mixed gas is primarily adapted for use in ferrous metal；Inert gas is Ar, He or Ar+He mixing
Gas is primarily adapted for use in non-ferrous metal.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of laser soldering device, including laser welding system and gas protection system；Wherein
The gas protection system includes:
Adapter, the adapter are connected on the plumb joint of the laser welding system；
Tracheae, one end of the tracheae are connect with the adapter；
Gas source, the gas source are connect with the other end of the tracheae；
Can flexible bending plastic tube, it is described can one end of plastic tube of flexible bending be connected to one end of the tracheae；
Nozzle, the nozzle be arranged in it is described can flexible bending plastic tube the other end；
It is characterized in that, can be equipped with insulation coupling tube on the other end of the flexible plastic tube bent described, the nozzle passes through
The insulation coupling tube be arranged in it is described can flexible bending plastic tube the other end.
2. laser soldering device according to claim 1, which is characterized in that the material of the insulation coupling tube is phenolic aldehyde tree
Rouge.
3. laser soldering device according to claim 1, which is characterized in that the nozzle is close to the end face edge of metal works
The size of welding direction is greater than 20 millimeters.
4. laser soldering device according to claim 1, which is characterized in that the nozzle and it is described can flexible bending modeling
The section of the connecting pin of expects pipe is circle；
Groove is offered on the free end of the nozzle；
The through-hole passed through for the laser beam is equipped with close to one end of laser beam in the groove；Wherein
The gradient of the groove is 30 degree, and the through-hole is that vertical state projection size is 10 millimeters of through-holes of diameter；
The baseplane of the nozzle and metal works upper surface keeping parallelism and vertical distance range are 1 millimeter~3 millimeters；
The angular range of the vertical plane of the nozzle and metal works is 70 degree~75 degree；
The horizontal distance range of the through hole center of laser beam and the nozzle is 0 millimeter~3 millimeters；
The flow velocity of the gas of the gas source is 40 liters/min~50 liters/min.
5. laser soldering device according to claim 1, which is characterized in that be connected and fixed heat dissipation system on the plumb joint
System, the fixed cooling system are connect with the gas protection system, and the fixed cooling system includes:
Bindiny mechanism, the bindiny mechanism are connected on the plumb joint；
One end of first adjusting rod, first adjusting rod is connect with the bindiny mechanism；
Second adjusting rod, one end of second adjusting rod are connect with the other end of first adjusting rod, and described second is adjusted
The other end of bar is connect with the nozzle.
6. laser soldering device according to claim 5, which is characterized in that one end of first adjusting rod passes through single hole
Hoop component is connect with the bindiny mechanism；
The other end of second adjusting rod is connect by diplopore hoop component with the nozzle.
7. laser soldering device according to claim 6, which is characterized in that second adjusting rod one end with it is described
It is equipped between the other end of first adjusting rod and adjusts component, the adjusting component includes:
First turntable；
Second turntable, second turntable and first turntable are coaxially disposed；
Adjustment hole, the adjustment hole are circumferentially disposed at described first turn around the center of circle of first turntable and second turntable
On disk and second turntable；
Regulating part, the regulating part are arranged in the adjustment hole.
8. according to laser soldering device described in claim 5,6 or 7, which is characterized in that first adjusting rod and described
Two adjusting rods are hollow tube.
9. laser soldering device according to claim 7, which is characterized in that the single hole clip, first adjusting rod,
Second adjusting rod, first turntable, second turntable, the single hole hoop component and the diplopore hoop component
Material is brass.
10. laser soldering device according to claim 1, which is characterized in that the protection gas in the gas protection system
Body is Ar+CO2Mixed gas, Ar+O2Mixed gas, Ar, He or Ar+He mixed gas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056639.6A CN109128501A (en) | 2018-09-11 | 2018-09-11 | Laser soldering device |
| PCT/CN2019/088217 WO2020052273A1 (en) | 2018-09-11 | 2019-05-24 | Laser welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056639.6A CN109128501A (en) | 2018-09-11 | 2018-09-11 | Laser soldering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128501A true CN109128501A (en) | 2019-01-04 |
Family
ID=64824421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811056639.6A Pending CN109128501A (en) | 2018-09-11 | 2018-09-11 | Laser soldering device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109128501A (en) |
| WO (1) | WO2020052273A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052273A1 (en) * | 2018-09-11 | 2020-03-19 | 上海航天精密机械研究所 | Laser welding device |
| CN111037096A (en) * | 2020-03-17 | 2020-04-21 | 广东电网有限责任公司东莞供电局 | Semiconductor laser processing device |
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| CN103658983A (en) * | 2013-12-09 | 2014-03-26 | 北京航星机器制造有限公司 | Laser welding titanium alloy front face non-dragging-cover gas protecting device |
| CN109128501A (en) * | 2018-09-11 | 2019-01-04 | 上海航天精密机械研究所 | Laser soldering device |
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| CN86100836A (en) * | 1985-02-05 | 1988-02-10 | 彼尔金-爱默公司 | Arc Spray System |
| CN102806661A (en) * | 2012-06-21 | 2012-12-05 | 苏州凯尔博精密机械有限公司 | Variable bit ultrasonic wave welding device |
| CN103170744A (en) * | 2013-04-11 | 2013-06-26 | 深圳市大族激光科技股份有限公司 | Laser welding device and welding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020052273A1 (en) * | 2018-09-11 | 2020-03-19 | 上海航天精密机械研究所 | Laser welding device |
| CN111037096A (en) * | 2020-03-17 | 2020-04-21 | 广东电网有限责任公司东莞供电局 | Semiconductor laser processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020052273A1 (en) | 2020-03-19 |
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Application publication date: 20190104 |