CN107160040A - A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field - Google Patents
A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field Download PDFInfo
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- CN107160040A CN107160040A CN201710557420.3A CN201710557420A CN107160040A CN 107160040 A CN107160040 A CN 107160040A CN 201710557420 A CN201710557420 A CN 201710557420A CN 107160040 A CN107160040 A CN 107160040A
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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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
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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
- B23K26/1435—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 involving specially adapted flow control means
-
- 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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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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
The invention discloses a kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field, it is characterized in that building plane-parallel capacitor by introducing direct current between the reflection backing plate at welding thin plate and the back side, the dispersion degree and directionality that the characteristic butt-welding fitting back metal vaporous cloud of uniform electric field is produced using plane-parallel capacitor are regulated and controled, to ensure that it is preferable that reflected backing plate induces its directionality and centrality when the metal steam gas cloud produced acts on go back to back weld zone again；So as to which improving the back side can field efficiency（Relative to can plus during auxiliary electric field not improve 6% 14%）, and improve protective effect of the back side energy field to back side weld zone.
Description
Technical field
The invention belongs to laser welding technology field, it is related to a kind of sheet metal laser light back reflection synergy welding method, has
Say it is that a kind of utilize induces metal vapors at the uniform electric field butt-welding fitting back side of welding web back introducing by reflection backing plate body
The sheet laser back of the body for the auxiliary electric field regulation and control back side energy field that the dispersion degree and directionality that cloud forms back side energy field are regulated and controled
Reflect synergy welding method.
Background technology
Laser welding has the advantages that forming quality is good, heat affected area is small, the small, flexibility of workpiece deformation is high, is especially suitable for
The welding forming of sheet metal.It is well known that during sheet laser penetration fustion welding, higher less laser energy value of threshold will certainly
So that bath temperature is higher, so as to cause welding point residual stress gradient to increase；Meanwhile, welding thin plate is being just in welding process
Shielding action of the plasma cloud or metal steam gas cloud that face is formed to laser can also tend to be obvious, cause utilization ratio of laser energy
Decline.Therefore, thin plate Low threshold laser welding manufacturing process receives much concern.
In Publication No. CN103978309A patent application, disclose one kind and realize that sheet metal single-sided welding is two-sided
The efficient Laser Deep Penetration Welding method of shaping, this method is to set up reflection backing plate at the back side of welding sheet metal, to utilize reflection
The laser of laser penetration sheet metal moment is acted on the reflow part back side by backing plate again in the form of similar reflection, so as to the back side
Weld zone carries out reheating and then realizes that single-sided welding obtains the X-shaped weld seam of two-sides forming, and this method is substantially in welding
Sheet metal back is induced by reflection backing plate forms a metal steam gas cloud synergy energy field, so that under conditions of low energy threshold value
The good X-shaped weld seam of symmetry is realized, but this method also has the following disadvantages：Because there is dispersion degree in back metal vaporous cloud
It is high, the problems such as directionality is poor, cause the back side can field it is less efficient, while its protection to sealing run area and heat affected area is made
With also still not ideal enough.
By being retrieved to domestic and foreign literature, there is presently no find to swash thin plate back reflection synergy using uniform electric field
The relevant report that photocoagulation back side energy field is regulated and controled.
The content of the invention
The purpose of the present invention is to be directed in current sheet metal back reflection synergy laser welding to have back metal vaporous cloud
The problem of dispersion is high, directionality is poor, invents a kind of the discrete of utilization uniform electric field regulation and control welding web back metal steam gas cloud
Degree and direction, so as to improve back side energy field efficiency and improve auxiliary electric field of the back side energy field to the protective effect of back side weld zone
Regulate and control the sheet laser back reflection synergy welding method of back side energy field.
The technical scheme is that：
A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field, it is characterized in that by thin in welding
Direct current is introduced between plate and the reflection backing plate at the back side and builds plane-parallel capacitor, uniform electric field is produced using plane-parallel capacitor
The dispersion degree and directionality of characteristic butt-welding fitting back metal vaporous cloud are regulated and controled, to ensure that reflected backing plate induces what is produced
Its directionality and centrality are preferable when metal steam gas cloud acts on go back to back weld zone again.
Concretely comprise the following steps：
A）220V alternating currents are first changed into direct current by vertoro；
B）After the vertoro leading-out terminal for regulating magnitude of voltage is connected with safety knife switch end of incoming cables, then with wire by emergency lock
Knife leading-out terminal is connected with ammeter, fuse, slide rheostat, fixed value resistance, and voltmeter finally is connected in parallel on into definite value electricity
Two ends are hindered, external circuit connection is finished；
C）Reflection backing plate and workpiece to be welded are respectively placed on respective placement platform, wire end thereof contacts are reflected into backing plate following table
Face, the other end is drawn and is connected on fixed value resistance left port；Wire end thereof contacts workpiece surface to be welded is used again, and is filled with positioning compression
Put and compress part to be welded, the other end is drawn and is connected on fixed value resistance right output port；
D）Laser head is moved to above sheet metal position while welding to be welded using the computer control system of laser, it is ensured that hair
The intermediate weld laser beam penetrated splices with part to be welded every time when is on same straight line；
E）Laser is opened, plug-in strip is closed, external circuit is powered, slide rheostat resistance is adjusted, so as to adjust definite value indirectly
Resistance both end voltage is to required magnitude of voltage, and this process is treated welder's part and filled with reflecting the plane-parallel capacitor that backing plate is formed
Electricity, when plane-parallel capacitor charging saturation is stable, opens computer control system control laser head light extraction and according to specified rail
Mark carries out laser scanning welding；
F）After welding is finished, plug-in strip cut-out external circuit is first disconnected, workpiece is removed, so far completes a welding sequence；Wait own
After workpiece whole welding to be welded is finished, laser and computer control system are finally closed.
It is described that 220V alternating currents are changed into direct current by vertoro, it is characterized in that the output voltage of direct current is
It is advisable in 100-200V, welding process with rectifier output voltage capping.
The indirect regulation fixed value resistance both end voltage, it is characterized in that regulation fixed value resistance both end voltage is in 60- indirectly
180V；
The indirect regulation fixed value resistance both end voltage, it is characterized in that the regulation definite value electricity indirectly when welding titanium alloy TC4 thin plates
Resistance both end voltage is 120V；
It is described to treat that plane-parallel capacitor charging saturation is stable, it is characterized in that conduction time is not less than 2 minutes.
The laser is optical fiber laser.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Beneficial effects of the present invention：
（1）The method of the invention using auxiliary electric field be plane-parallel capacitor characteristic butt-welding fitting back metal vaporous cloud from
Dissipate degree and directionality to be regulated and controled, improve the efficiency of back metal vaporous cloud energy field, relative to being improved when being not powered on
About 6%-14%；
（2）The method of the invention using auxiliary electric field be plane-parallel capacitor characteristic butt-welding fitting back metal vaporous cloud from
The degree of dissipating and directionality are regulated and controled, and improve protective effect of the back metal vaporous cloud to back side weld zone；
（3）External circuit of the present invention connection is simple and safe, and all parts of use are replaceable, the weld jig used with
Existing Laser Processing platform has preferable suitability.
Brief description of the drawings
Fig. 1 is the principle schematic of apparatus of the present invention.
Fig. 2 is laser light back reflection synergy welding process schematic diagram when not adding auxiliary electric field.
Laser light back reflection synergy welding process schematic diagram when Fig. 3 is addition auxiliary electric field.
Fig. 4 is that first group of experiment described in the embodiment of the present invention does not add auxiliary electric field laser light back reflection synergy welding metal thin plate
Cross-sectional morphology.
Fig. 5 is the 3rd group of experiment addition auxiliary electric field laser light back reflection synergy welding metal thin plate described in the embodiment of the present invention
Cross-sectional morphology.
In figure, 1- AC powers, 2- wires, 3- vertoroes, 4- safety knife switch, 5- fuses, 6- ammeters, 7- electricity
Press table, 8- fixed value resistances, 9- slide rheostats, 10- weld jigs, 11- reflections backing plate, 12- insulation spacers, 13- metals to be welded
Thin plate, 14- laser heads, 15- computer control systems, 16- lasers.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As Figure 1-5.
A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field, its essence and key are logical
Cross and direct current structure plane-parallel capacitor is introduced between the reflection backing plate at welding thin plate and the back side, produced using plane-parallel capacitor
The dispersion degree and directionality of the characteristic butt-welding fitting back metal vaporous cloud of uniform electric field are regulated and controled, to ensure reflected backing plate
Induce its directionality and centrality when the metal steam gas cloud produced acts on go back to back weld zone again preferable.
Concretely comprise the following steps：
A）220V alternating currents are first changed into direct current by vertoro；
B）After the vertoro leading-out terminal for regulating magnitude of voltage is connected with safety knife switch end of incoming cables, then with wire by emergency lock
Knife leading-out terminal is connected with ammeter, fuse, slide rheostat, fixed value resistance, and voltmeter finally is connected in parallel on into definite value electricity
Two ends are hindered, external circuit connection is finished；
C）Reflection backing plate and workpiece to be welded are respectively placed on respective placement platform, wherein, workpiece to be welded and weld jig it
Between add insulation spacer, by wire end thereof contacts reflect backing plate lower surface, the other end draw be connected on fixed value resistance left port；Use again
Wire end thereof contacts workpiece surface to be welded, and compressed part to be welded with positioning compression device, the other end, which is drawn, is connected on definite value electricity
Hinder right output port；
D）Laser head is moved to above sheet metal position while welding to be welded using the computer control system of laser, it is ensured that hair
The intermediate weld laser beam penetrated splices with part to be welded every time when is on same straight line；
E）Laser is opened, safety knife switch is closed, external circuit is powered, slide rheostat resistance is adjusted, so as to adjust indirectly
Fixed value resistance both end voltage is to required magnitude of voltage, and this process is treated welder's part and entered with reflecting the plane-parallel capacitor that backing plate is formed
Row charging, when plane-parallel capacitor charging saturation is stable, opens computer control system control laser head light extraction and according to finger
Fixed track carries out laser scanning welding；
F）After welding is finished, plug-in strip cut-out external circuit is first disconnected, workpiece is removed, so far completes a welding sequence；Wait own
After workpiece whole welding to be welded is finished, laser and computer control system are finally closed.
It is described that 220V alternating currents are changed into direct current by vertoro, it is characterized in that the output voltage of direct current is
It is advisable in 100-200V, welding process with rectifier output voltage capping.
The indirect regulation fixed value resistance both end voltage, it is characterized in that regulation fixed value resistance both end voltage is in 60- indirectly
180V；
The indirect regulation fixed value resistance both end voltage, it is characterized in that the regulation definite value electricity indirectly when welding titanium alloy TC4 thin plates
Resistance both end voltage is 120V；
It is described to treat that plane-parallel capacitor charging saturation is stable, it is characterized in that conduction time is not less than 2 minutes.
The laser is optical fiber laser.
By taking the welding of titanium alloy TC 4 sheet laser as an example.Experiment is divided into four groups, every group comprising 2 pieces of 25mm × 40mm ×
0.6mm rectangular thin plate sample, reflection backing plate is Al99.8 aluminium sheets purchased in market, and protective gas is pure argon.Four groups of experiments are used
Identical laser, model ZKSX-10D4 fiber coupling all solid state lasers, parameter is as follows：Rated power 1KW, wavelength is
1064nm, beam quality is 16-32mm*mrad, and optical fiber core diameter numerical aperture is 0.15 μm；Meanwhile, four groups of experiments use phase
Same technological parameter：Laser power 600W, sweep speed 300mm/min, defocusing amount -1mm, argon flow amount are 15L/min.
In first group of experiment, safety knife switch 4 is disconnected, laser is carried out to titanium-alloy thin-plate sample under the conditions of without auxiliary electric field
Butt welding, such as Fig. 2, welding effect such as Fig. 4.
In second group to the 4th group experiment, safety knife switch 4 is closed, to titanium-alloy thin-plate sample under the conditions of having auxiliary electric field
Carry out laser butt welding, such as Fig. 3.
Implement detailed process as follows：
A）220V AC powers 1 are first changed into rated value 200V dc source by vertoro 3；
B）The leading-out terminal for setting the vertoro 3 that rated value is 200V is connected with the end of incoming cables of safety knife switch 4 with wire 2,
The leading-out terminal of safety knife switch 4 is connected with fuse 5, ammeter 6, fixed value resistance 8, slide rheostat 9 with wire 2 again, most
Voltmeter 7 is connected in parallel on the two ends of fixed value resistance 8 with wire 2 afterwards, external circuit connection is finished；
C）Reflection backing plate 11 and sheet metal to be welded 13 are respectively placed on respective placement platform, titanium alloy TC 4 thin plate sample 13
Insulation spacer 12 is added between weld jig 10, the lower surface of backing plate 11 is reflected with the end thereof contacts of wire 2, the other end is drawn and is connected on
The left port of fixed value resistance 8；Then two pieces of upper surfaces of sheet metal 13 to be welded are contacted respectively with the one end of wire 2, and use positioning compression
Device compresses sheet metal 13 to be welded, and the other end is drawn and is connected on the right output port of fixed value resistance 8；
D）Laser head 14 is moved to above laser head sheet metal position while welding to be welded using computer control system 15, it is ensured that
The intermediate weld laser beam of transmitting splices with part to be welded every time when is on same straight line；
E）Laser 16 is opened, safety knife switch 4 is closed into external circuit is powered, and the resistance of slide rheostat 9 is adjusted, so that indirectly
Adjust the both end voltage of fixed value resistance 8（Wherein second group experiment to 60V, the 3rd group of experiment to 120V, the 4th group of experiment extremely
180V）, this process is to sheet metal 13 to be welded and reflects after the plane-parallel capacitor progress charging 2min that backing plate 11 is formed, and treats
When plane-parallel capacitor charging saturation is stable, the control light extraction of laser head 14 of computer control system 15 is opened and according to seam track
Carry out laser scanning welding；
F）After welding is finished, the cut-out external circuit of plug-in strip 4 is first disconnected, the sheet metal welded is removed, control of finally shutting down computer
System 15 processed and laser 16.
As shown in Fig. 3,5, uniform electric field is introduced between the reflection backing plate at sheet metal and the back side, is using auxiliary electric field
The dispersion degree and directionality of the metal steam gas cloud at the characteristic butt-welding fitting back side of plane-parallel capacitor are regulated and controled, to ensure through anti-
Penetrate its directionality and centrality when backing plate induction excites the metal steam gas cloud of generation to act on go back to back weld zone again preferable, so that
Improving back side energy field efficiency and improve the back side can protective effect of the field to back side weld zone.Observe sample back side macro morphology
It can be seen that, second group to the 4th group experiment obtains sample back side weld zone especially heat affected area oxidative phenomena compared with first group of experiment
Obtained sample is weak；Meanwhile, can field efficiency evaluation index, the back of the body in second group to the 4th group experiment by the back side of weld metal zone area
Face energy field efficiency, relative to first group experiment adds 6.5%, 13.8% and 11.4%, reaches purpose of the present invention and effect respectively
Really.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (7)
1. a kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field, it is characterized in that by welding
Direct current is introduced between thin plate and the reflection backing plate at the back side and builds plane-parallel capacitor, uniform electric field is produced using plane-parallel capacitor
Characteristic butt-welding fitting back metal vaporous cloud dispersion degree and directionality regulated and controled, produced with ensureing that reflected backing plate induces
Metal steam gas cloud its directionality and centrality when acting on go back to back weld zone again, improve the effect of back metal vaporous cloud energy field
The protective effect of rate and back metal vaporous cloud to back side weld zone.
2. synergy welding method according to claim 1, it is characterized in that it comprises the following steps：
A）220V alternating currents are first changed into direct current by vertoro；
B）After the vertoro leading-out terminal for regulating magnitude of voltage is connected with safety knife switch end of incoming cables, then with wire by emergency lock
Knife leading-out terminal is connected with ammeter, fuse, slide rheostat, fixed value resistance, and voltmeter finally is connected in parallel on into definite value electricity
Two ends are hindered, external circuit connection is finished；
C）Reflection backing plate and workpiece to be welded are respectively placed on respective placement platform, wherein, workpiece to be welded and weld jig it
Between add insulation spacer, by wire end thereof contacts reflect backing plate lower surface, the other end draw be connected on fixed value resistance left port；Use again
Wire end thereof contacts workpiece surface to be welded, and compressed part to be welded with positioning compression device, the other end, which is drawn, is connected on definite value electricity
Hinder right output port；
D）Laser head is moved to above sheet metal position while welding to be welded using the computer control system of laser, it is ensured that hair
The intermediate weld laser beam penetrated splices with part to be welded every time when is on same straight line；
E）Laser is opened, safety knife switch is closed, external circuit is powered, slide rheostat resistance is adjusted, so as to adjust indirectly
Fixed value resistance both end voltage is to required magnitude of voltage, and this process is treated welder's part and entered with reflecting the plane-parallel capacitor that backing plate is formed
Row charging, when plane-parallel capacitor charging saturation is stable, opens computer control system control laser head light extraction and according to finger
Fixed track carries out laser scanning welding；
F）After welding is finished, safety knife switch cut-out external circuit is first disconnected, workpiece is removed, so far completes a welding sequence；Treat
After all workpiece whole welding to be welded are finished, laser and computer control system are finally closed.
3. synergy welding method according to claim 2, it is characterized in that 220V alternating currents are changed by vertoro
It is to be advisable with rectifier output voltage capping in 100-200V, welding process for the output voltage of direct current.
4. synergy welding method according to claim 2, it is characterized in that the indirect regulation fixed value resistance both end voltage exists
60-180V。
5. synergy welding method according to claim 2, it is characterized in that during the indirect regulation fixed value resistance both end voltage,
When welding titanium alloy TC4 thin plates, regulation fixed value resistance both end voltage is 120V indirectly.
6. synergy welding method according to claim 2, it is characterized in that described treat that plane-parallel capacitor charging saturation is stable
Conduction time be not less than 2 minutes.
7. synergy welding method according to claim 2, it is characterized in that the laser is optical fiber laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710557420.3A CN107160040B (en) | 2017-07-10 | 2017-07-10 | A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557420.3A CN107160040B (en) | 2017-07-10 | 2017-07-10 | A kind of sheet laser back reflection synergy welding method of auxiliary electric field regulation and control back side energy field |
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| CN107160040A true CN107160040A (en) | 2017-09-15 |
| CN107160040B CN107160040B (en) | 2018-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732211A (en) * | 2019-01-31 | 2019-05-10 | 华中科技大学 | A kind of the hard brittle material ultrafast laser hot tearing processing unit (plant) and method of electrical field draw |
| CN113030713A (en) * | 2021-03-05 | 2021-06-25 | 中国科学院国家空间科学中心 | System for laser detection of internal level state of integrated circuit |
| CN114669879A (en) * | 2022-04-11 | 2022-06-28 | 苏州中科煜宸激光智能科技有限公司 | Aluminum alloy single-laser self-fusion welding back protection tool and welding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040222196A1 (en) * | 2003-03-10 | 2004-11-11 | Gert Callies | Device for laser drilling |
| CN101745747A (en) * | 2009-12-14 | 2010-06-23 | 大连理工大学 | Laser-electric arc composite welding method through extra electric field |
| CN102208321A (en) * | 2011-05-11 | 2011-10-05 | 江苏大学 | Method and apparatus for laser to induce plasma to inject into substrate |
| CN103014314A (en) * | 2012-12-25 | 2013-04-03 | 中国人民解放军空军工程大学 | Method for improving laser plasma shock wave pressure through magnetic and electric fields |
| CN103978309A (en) * | 2014-05-26 | 2014-08-13 | 江苏大学 | High-efficiency laser deep penetration welding method for achieving double-side forming of sheet metal through single-side welding |
-
2017
- 2017-07-10 CN CN201710557420.3A patent/CN107160040B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040222196A1 (en) * | 2003-03-10 | 2004-11-11 | Gert Callies | Device for laser drilling |
| CN101745747A (en) * | 2009-12-14 | 2010-06-23 | 大连理工大学 | Laser-electric arc composite welding method through extra electric field |
| CN102208321A (en) * | 2011-05-11 | 2011-10-05 | 江苏大学 | Method and apparatus for laser to induce plasma to inject into substrate |
| CN103014314A (en) * | 2012-12-25 | 2013-04-03 | 中国人民解放军空军工程大学 | Method for improving laser plasma shock wave pressure through magnetic and electric fields |
| CN103978309A (en) * | 2014-05-26 | 2014-08-13 | 江苏大学 | High-efficiency laser deep penetration welding method for achieving double-side forming of sheet metal through single-side welding |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732211A (en) * | 2019-01-31 | 2019-05-10 | 华中科技大学 | A kind of the hard brittle material ultrafast laser hot tearing processing unit (plant) and method of electrical field draw |
| CN109732211B (en) * | 2019-01-31 | 2019-10-25 | 华中科技大学 | A kind of the hard brittle material ultrafast laser hot tearing processing unit (plant) and method of electrical field draw |
| CN113030713A (en) * | 2021-03-05 | 2021-06-25 | 中国科学院国家空间科学中心 | System for laser detection of internal level state of integrated circuit |
| CN114669879A (en) * | 2022-04-11 | 2022-06-28 | 苏州中科煜宸激光智能科技有限公司 | Aluminum alloy single-laser self-fusion welding back protection tool and welding method |
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| CN107160040B (en) | 2018-10-12 |
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