CN206286711U - A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring - Google Patents
A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring Download PDFInfo
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- CN206286711U CN206286711U CN201621453550.XU CN201621453550U CN206286711U CN 206286711 U CN206286711 U CN 206286711U CN 201621453550 U CN201621453550 U CN 201621453550U CN 206286711 U CN206286711 U CN 206286711U
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Abstract
A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring, the device can simulate narrow gap laser filling wire welding process, carry out testing before welding and real-time monitoring welding process, understand welding process feature and stability, optimizing welding process.It is easy to operate and the apparatus structure is simple, it is suitable for being widely applied in practice in laboratory, engineering.Described device includes welding analog portion, real-time monitoring portion and data processing division, and welding analog portion includes the metal test plate (panel) and GG17 glass test plate (panel)s that assembling is clamped；Laser beam, narrow gap snorkel, the special wire feed rifle of narrow gap and welding wire for carrying out wire filling laser welding；Two pieces of test plate (panel) contact positions offer Narrow sloping-glot；Real-time monitoring portion includes being arranged in high-speed camera of the GG17 glass test plate (panel)s side just to welding region, fibre-optical probe and laser assisted light source, and fibre-optical probe is connected with spectrometer；The output end of spectrometer and high-speed camera is connected with the input port of data processing division.
Description
Technical field
The utility model is related to a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring, belongs to laser
Processing, welding technology field.
Background technology
Laser from melting welding connection technology be a kind of advanced high energy beam welding method, with thermal weld stress is small, speed of welding
Hurry up, the outstanding advantages such as seam deformation is small, the manufacturings such as Aero-Space, the energy, track traffic are widely used at present.But
For some special equipments, (thickness of slab is for the big thick plate structure of huge vacuum chamber of such as International Thermal-Nuclear Experimental Reactor plan ITER
The stainless steel of 60mm), the military phased-array radar substrate aluminium alloy of 70mm (thickness more than) etc., conventional laser is difficult from melting welding
Complete associated welds work.Reason is that the subject matter that laser exists from melting welding is weld blowhole, and with the increasing of thickness of slab
The tendency in aerating hole is bigger, and its stomata tendency is even greater than arc welding and electron beam weldering.
Narrow gap wire filling laser welding remains Laser Welding energy height concentration, joint heat as a kind of method of Laser Welding
The features such as zone of influence is narrow, while can be adjusted to weld seam metallurgically by filler wire, is particularly well-suited to foreign material, height
The welding of steel alloy, high-strength aluminum alloy material and fragility high and welding-resistant metal material.Compared to laser from melting welding, narrow gap laser
Landfilling area can realize the welding of big slab using the laser of the ripe myriawatt level of safety, multikilowatt power.But laser is filled out
The introducing of welding wire in wire bond, than the process that laser increased the droplet transfer from melting welding, therefore its welding process mechanism is more complicated.Cause
This needs to study narrow gap laser filling wire welding process feature and by optimum experimental wire filling laser welding parameter.
And, the narrow gap laser filling wire welding technology of existing slab, due to the presence of laser beam divergent angle, easily goes out
The defect of existing bottom incomplete fusion.In order to avoid bottom incomplete fusion defect, gap width sufficiently large must ensure light beam not by groove
End surfaces or side wall stop and act on groove bottom, but when gap is larger, due to laser energy high concentration, Laser Welding
Molten wide is limited, and often side wall incomplete fusion defect occurs.The accessibility of this light and the contradiction of side wall incomplete fusion problem limit narrow
The scope of the solderable thickness of slab of gap Laser Welding.In the research of existing narrow gap laser filling wire welding, more using focal beam spot and match somebody with somebody
Close the mode that many hot spots are combined or light beam swings in gap and complete welding, combined by many hot spots and the swing of light beam increases molten
Width solves side wall incomplete fusion defect.Because the adaptability using focal beam spot in gap is poor, cause welded gaps wider,
Although can be solved by with upper type, the method operation difficulty is larger, for different material and thickness, it is necessary to pass through a large amount of
Assay optimization welding parameter, this is accomplished by understanding narrow gap laser filling wire welding process feature in depth, and by testing adjustment weldering
Connect parameter and improve welding quality.
At present, conventional welding process monitoring means includes high-speed camera (collection Real-time Motion Image) and spectrometer
(collection real time spectrum information).But because the joint thickness of slab of narrow gap wire filling laser welding is larger, gap is narrower, conventional high speed
The means such as shooting can be stopped by narrow gap test plate (panel), therefore observe its welding process, typically using following several method：
1. welding situation of the wire filling laser welding on welding direction of travel is observed by groove.But laser in this case
Molten drop can be sheltered from, it is impossible to the accurate situation for seeing droplet transfer and molten bath flowing.In addition, the method is not suitable for welding yet
The spectrum analysis of journey.
2. the sidewall weld situation of wire filling laser welding is observed with the method for disk diffusion method.The method is although it is observed that laser
The droplet transfer of landfilling area side wall, the spectrum analysis of welding process is also applied for, but the method does not consider groove reflection laser
Influence to the droplet transfer, can not reflect " original position " welding situation of narrow gap wire filling laser welding.
Above-mentioned deficiency hinders people and understands narrow gap laser filling wire welding process feature and stability in depth, also have impact on
To the optimization of wire filling laser welding parameter in engineering.Therefore, a kind of welding process for simulating narrow gap wire filling laser welding is needed badly simultaneously
Carry out real-time weld seam side wall " accurate in situ " monitoring device.
Utility model content
Goal of the invention of the present utility model is to provide a kind of simulation slab narrow gap laser filling wire welding process and in real time prison
The device of survey.The device can simulate narrow gap laser filling wire welding process, and carry out real-time monitoring to the process.And the device
Simple structure, it is easy to operate, it is suitable for being widely applied in practice in laboratory, engineering.
The utility model realizes that its goal of the invention is adopted the technical scheme that：One kind simulation slab narrow gap laser fills silk
The device of simultaneously real-time monitoring, including welding analog portion, real-time monitoring portion and data processing division are welded, it is structurally characterized in that：
The welding analog portion includes the metal test plate (panel) and GG17 glass test plate (panel)s that assembling is clamped；For carrying out wire filling laser welding
Laser beam；Narrow gap snorkel for conveying welding protection gas；The special wire feed rifle of narrow gap and weldering for conveying welding wire
Silk；The metal test plate (panel) and GG17 glass test plate (panel)s contact position offer the Narrow sloping-glot of simulation actual welding joint；
The real-time monitoring portion includes being arranged in high-speed camera, optical fiber of the GG17 glass test plate (panel)s side just to welding region
Probe and laser assisted light source, the fibre-optical probe are connected with spectrometer；
The output end of the spectrometer and high-speed camera is connected with the input port of data processing division.
Application method of the present utility model is：The laser that opening can simulate inside narrow gap after laser introducing laser beam is filled out
Wire bond termination process.In welding process, with laser assisted light source for welding region provides laser lighting, fibre-optical probe and high speed are taken the photograph
Camera alignment welding region carries out welding region monitoring, and the welding region inside collection narrow gap wire filling laser welding groove is schemed in real time
As and correlation spectrum information, specific acquisition mode is：The spectral information of fibre-optical probe collection welding region simultaneously defeated enters to spectrometer
Row spectral information analysis；Related spectral data is transferred to data processing division by spectrometer；High-speed camera collection welding region
Pictorial information is simultaneously transferred to data processing division；Processed by the data operation of data processing division, you can obtain narrow gap laser and fill out
Welding region realtime graphic and correlation spectrum information inside wire bond groove.
Welding region monitoring includes the monitoring of molten bath mobile monitoring, plasma monitoring and droplet transfer；
The specific practice of the molten bath mobile monitoring is：With laser assisted light source for welding pool provides laser lighting；Light
Fibre probe and high-speed camera are directed at welding pool；The spectral information of fibre-optical probe collection welding pool simultaneously defeated is carried out to spectrometer
Spectral information analysis；Related spectral data is transferred to data processing division by spectrometer；High-speed camera gathers the figure of welding pool
Piece information is simultaneously transferred to data processing division；Processed by the data operation of data processing division, you can obtain the silk filling of narrow gap laser
Welding pool flowing realtime graphic and spectral information inside weldering groove.Flowed by monitoring molten bath, laser silk filling can be specified
The flow behavior of liquid metal in weldering in molten bath in welding process, while can be used for observation molten drop enters right behind molten bath
The influence of molten bath flowing.
The specific practice of the plasma monitoring is：With laser assisted light source for welding pool upper area provides laser
Illumination；Fibre-optical probe and high-speed camera alignment welding pool upper area；Fibre-optical probe collection welding pool top plasma
The spectral information of body is simultaneously transferred to spectrometer and carries out spectral information analysis；Related spectral data is transferred to data processing by spectrometer
Portion, is processed, you can obtain the plasma light inside narrow gap wire filling laser welding groove by the data operation of data processing division
Spectrum information.Plasma formed and evaporation, ionization in the presence of laser in metal will there is.Plasma can produce anti-to laser
Penetrate, scatter, absorbing and negative lens benefit, the quality of weld seam is had influence on to varying degrees, can by observing plasma signal
Indirect analysis weldquality.
Droplet transfer specific practice of monitoring is：With laser assisted light source for welding pool upper area provides laser
Illumination；The pictorial information of high-speed camera collection welding pool top droplet transfer is simultaneously transferred to data processing division, by data
The data operation treatment of processing unit, you can obtain the droplet transfer image inside narrow gap wire filling laser welding groove.Droplet transfer
Monitoring is acted on：Droplet transfer is that wire filling laser welding is different from key character of the laser from melting welding.By monitoring the droplet transfer, a side
Face will be seen that wire melting enters the mode and its stability in molten bath, on the other hand can also be observed that laser and welding wire, melts
Interaction between drop.
Compared with prior art, the beneficial effects of the utility model are：
First, narrow gap laser light landfilling area test plate (panel) is simulated by GG17 glass, real-time welding process can be simulated, it is to avoid often
Stop of the rule metal test plate (panel) to narrow gap interior welds process, such that it is able to use fibre-optical probe, spectrometer and high-speed camera
" original position " real-time condition of narrow gap wire filling laser welding is observed directly, the real-time, effect of home position observation is reached, welded beneficial to discovery
Abnormal conditions in termination process, be particularly suitable for understanding in depth narrow gap laser filling wire welding process (droplet transfer, molten bath flowing,
Plasma variations etc.) and further optimizing welding process parameter.
2nd, laser assisted light source can provide light source, high-speed camera for high-speed camera obtains clearly welding process image
Machine can gather real-time molten bath flowing and droplet transfer dynamic image, and fibre-optical probe can gather the light such as real-time plasma new signal
Spectrum information, spectrometer and high-speed camera in real time the spectral information that will collect and image transmitting to data processing division so that point
Analysis welding and weldquality, real-time adjustment optimizing welding process parameter.
3rd, the device can be tested before a large amount of welding, understand narrow gap laser filling wire welding process feature and stabilization
Property, optimizing welding process has saved welding cost, it is ensured that welding quality；And the apparatus structure is simple, low cost, favorably
In the extensive application in laboratory, engineering in practice.
Further, real-time monitoring portion described in the utility model also includes the temperature measuring unit of monitoring sweating heat, the thermometric list
Unit includes being arranged in metal test plate (panel) surface, and near spaced several temperature sensors of Narrow sloping-glot, the temperature is passed
The output end of sensor is connected with the input port of data processing division.
Temperature sensor can be monitored to the temperature in welding process near Narrow sloping-glot various location, different positions
The temperature at the place of putting can reflect Thermal Cycle of the wire filling laser welding to welding metal test plate (panel), can be surveyed with the structure property in later stage
Try heat effect situation of the binding analysis laser heat source to metal test plate (panel), further optimizing welding process parameter.
Further, the temperature sensor of temperature measuring unit described in the utility model is included in metal test plate (panel) lower surface, is close to
Narrow sloping-glot root face and distance is spaced several temperature sensors of arrangement in gradient away from Narrow sloping-glot root face is adjacent
The vertical range difference 3-7mm of two temperature sensors away from Narrow sloping-glot root face.
So, bottom welding heat transfer situation, heat effect feelings of the analysis laser heat source to metal test plate (panel) bottom can be monitored
Condition, further optimizing welding process parameter；Experiment proves that, the distance away from root face per 3-7mm arranges a TEMP
Device gap can ensure the side wall real-time monitoring to heat transfer situation.
Further, the temperature sensor of temperature measuring unit described in the utility model is included in the preceding surface of metal test plate (panel), rear table
Face and upper surface, near Narrow sloping-glot and away from Narrow sloping-glot, distance is spaced several TEMPs of arrangement in gradient
Device, vertical range difference 3-7mm of the two neighboring temperature sensor away from Narrow sloping-glot side wall or root face.
So, sidewall weld heat transfer situation, heat effect feelings of the analysis laser heat source to metal test plate (panel) side wall can be monitored
Condition, further optimizing welding process parameter；Experiment proves that, the distance away from root face or side wall per 3-7mm arranges a temperature
Degree sensor gap can ensure the real-time monitoring to heat transfer situation.
Further, the control end of the laser of the generation laser beam, the control end of narrow gap snorkel, narrow gap are special
At the control end of wire feed rifle, the control end of high-speed camera, the control end of spectrometer, the control end of laser assisted light source, data
Reason portion is connected with control centre.
So, the movement and operation of laser beam, narrow gap snorkel and the special wire feed rifle of narrow gap passes through control centre
Control, and control centre can also simultaneously control high-speed camera, spectrometer and laser assisted light source to be directed at welding region all the time,
And the intensity and angle, narrow gap of the laser beam sent according to the data message adjustment laser of data processing division collection are supplied gas
The wire feed rate of supply gas speed and the special wire feed rifle of narrow gap of pipe.Be achieved in that simulation welding process and real-time monitoring from
Dynamicization, substantially increases the efficiency of simulation welding process, monitoring and optimizing welding process parameter.
Brief description of the drawings
Fig. 1 is the three dimensional structure diagram of the device of the utility model embodiment one.
Fig. 2 is the front view in the welding analog portion of the utility model embodiment one.
Fig. 3 is the right view in the welding analog portion of the utility model embodiment one.
Fig. 4 is position schematic diagram of the temperature sensor of the utility model embodiment one in metal test plate (panel) bottom.
In figure, 12 is welding pool, and 13 is weld seam, and 14 is temperature sensor.
Specific embodiment
Embodiment one
Fig. 1 shows, a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring, including welding analog
Portion, real-time monitoring portion and data processing division 10, it is structurally characterized in that：
The welding analog portion includes the metal test plate (panel) 1 and GG17 glass test plate (panel) 2 that assembling is clamped；For carrying out laser silk filling
The laser beam 3 of weldering；Narrow gap snorkel 4 for conveying welding protection gas；The special wire feed rifle of narrow gap for conveying welding wire 5
6 and welding wire 5；The metal test plate (panel) 1 and the contact position of GG17 glass test plate (panel) 2 offer the narrow gap slope of simulation actual welding joint
Mouthful；Fig. 2 is the front view in this example welding analog portion, and Fig. 3 is the right view in this hair example welding analog portion.In this example, described narrow
Gap snorkel 4 is horizontal by 78~82 °；The special wire feed rifle 6 of narrow gap is horizontal by 45 °~70 °, the laser beam 3 of introducing
It it is in 5 °~10 ° with vertical direction.
The real-time monitoring portion includes being arranged in the side of GG17 glass test plate (panel) 2 just to the high-speed camera 8, light of welding region
Fibre probe 7 and laser assisted light source 9, the fibre-optical probe 7 are connected with spectrometer 11；
Input port of the output end of the spectrometer 11 and high-speed camera 8 with data processing division 10 is connected.
Real-time monitoring portion described in this example also includes the temperature measuring unit of monitoring sweating heat, and the temperature measuring unit includes being arranged in
The surface of metal test plate (panel) 1, near spaced several temperature sensors, the output of the temperature sensor at Narrow sloping-glot
The input port with data processing division 10 is held to be connected.The temperature sensor of the temperature measuring unit is included in the following table of metal test plate (panel) 1
Face, near Narrow sloping-glot root face and away from Narrow sloping-glot root face, distance is spaced several TEMPs of arrangement in gradient
Device, vertical range difference 3-7mm of the two neighboring temperature sensor away from Narrow sloping-glot root face.
Fig. 4 shows, a kind of arrangement mode of temperature sensor.If sensor is arranged fully according to the mode vertical with weld seam
Cheng Yilie, due to the size of sensor, some positions may be blocked by sensor cannot arrange more multisensor, in order to the greatest extent
May more obtain the temperature of the point away from weld seam different distance.Temperature sensor is staggered to weld seam in certain in this example
The oblique line of angle.So, the position of collection point can not just be influenceed by size sensor.
Embodiment two
A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring, including welding analog portion, real-time prison
Survey portion and data processing division 10, it is structurally characterized in that：
The welding analog portion includes the metal test plate (panel) 1 and GG17 glass test plate (panel) 2 that assembling is clamped；For carrying out laser silk filling
The laser beam 3 of weldering；Narrow gap snorkel 4 for conveying welding protection gas；The special wire feed rifle of narrow gap for conveying welding wire 5
6 and welding wire 5；The metal test plate (panel) 1 and the contact position of GG17 glass test plate (panel) 2 offer the narrow gap slope of simulation actual welding joint
Mouthful；
The real-time monitoring portion includes being arranged in the side of GG17 glass test plate (panel) 2 just to the high-speed camera 8, light of welding region
Fibre probe 7 and laser assisted light source 9, the fibre-optical probe 7 are connected with spectrometer 11；
Input port of the output end of the spectrometer 11 and high-speed camera 8 with data processing division 10 is connected.
Real-time monitoring portion described in this example also includes the temperature measuring unit of monitoring sweating heat, and the temperature measuring unit includes being arranged in
The surface of metal test plate (panel) 1, near spaced several temperature sensors of Narrow sloping-glot, the output end of the temperature sensor
Input port with data processing division 10 is connected.
The temperature sensor of temperature measuring unit described in this example is included in the lower surface of metal test plate (panel) 1, blunt near Narrow sloping-glot
Side and distance is spaced several temperature sensors of arrangement in gradient away from Narrow sloping-glot root face, is additionally included in metal test plate (panel)
1 preceding surface, rear surface and upper surface, if near Narrow sloping-glot and distance is spaced arrangement in gradient away from Narrow sloping-glot
Dry temperature sensor, vertical range difference 3-7mm of the two neighboring temperature sensor away from Narrow sloping-glot side wall or root face.
The control end of the laser of generation laser beam 3 described in this example, the control end of narrow gap snorkel 4, narrow gap are special
With the control end of wire feed rifle 6, the control end of high-speed camera 8, the control end of spectrometer 11, the control end of laser assisted light source 9,
Data processing division 10 is connected with control centre.
Claims (5)
1. a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring, including welding analog portion, real-time monitoring
Portion and data processing division (10), it is characterised in that：
The welding analog portion includes the metal test plate (panel) (1) and GG17 glass test plate (panel) (2) that assembling is clamped；For carrying out laser silk filling
The laser beam (3) of weldering；Narrow gap snorkel (4) for conveying welding protection gas；Narrow gap for conveying welding wire (5) is special
Wire feed rifle (6) and welding wire (5)；The metal test plate (panel) (1) and GG17 glass test plate (panel) (2) contact position offer simulation actual welding and connect
The Narrow sloping-glot of head；
The real-time monitoring portion includes being arranged in GG17 glass test plate (panel) (2) side just to high-speed camera (8), the light of welding region
Fibre probe (7) and laser assisted light source (9), the fibre-optical probe (7) are connected with spectrometer (11)；
Input port of the output end of the spectrometer (11) and high-speed camera (8) with data processing division (10) is connected.
2. a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring according to claim 1, it is special
Levy and be：The real-time monitoring portion also includes the temperature measuring unit of monitoring sweating heat, and the temperature measuring unit includes being arranged in metal examination
Plate (1) surface, near Narrow sloping-glot spaced several temperature sensors, the output end of the temperature sensor with
The input port connection of data processing division (10).
3. a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring according to claim 2, it is special
Levy and be：The temperature sensor of the temperature measuring unit is included in metal test plate (panel) (1) lower surface, near Narrow sloping-glot root face and away from
Distance is spaced several temperature sensors of arrangement to Narrow sloping-glot root face in gradient, and two neighboring temperature sensor is away from narrow
The vertical range difference 3-7mm of gap root face.
4. the device of a kind of simulation slab narrow gap laser filling wire welding according to Claims 2 or 3 and real-time monitoring, its
It is characterised by：The temperature sensor of the temperature measuring unit is included in metal test plate (panel) (1) preceding surface, rear surface and upper surface, is close to
Narrow sloping-glot and distance is spaced several temperature sensors of arrangement, two neighboring temperature in gradient away from Narrow sloping-glot
Vertical range difference 3-7mm of the sensor away from Narrow sloping-glot side wall or root face.
5. a kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring according to claim 1, it is special
Levy and be：Produce the control end of the laser of the laser beam (3), the control end of narrow gap snorkel (4), narrow gap is special send
Control end, the control end of high-speed camera (8), the control end of spectrometer (11), the control of laser assisted light source (9) of silk rifle (6)
End processed, data processing division (10) are connected with control centre.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453550.XU CN206286711U (en) | 2016-12-28 | 2016-12-28 | A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453550.XU CN206286711U (en) | 2016-12-28 | 2016-12-28 | A kind of device for simulating slab narrow gap laser filling wire welding and real-time monitoring |
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| CN206286711U true CN206286711U (en) | 2017-06-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735897A (en) * | 2016-12-28 | 2017-05-31 | 西南交通大学 | The device and method of simulation slab narrow gap laser filling wire welding and real-time monitoring |
| CN108608113A (en) * | 2018-05-10 | 2018-10-02 | 上海交通大学 | A kind of adaptive laser soldering device and application method based on cooling velocity |
| CN111203639A (en) * | 2020-01-16 | 2020-05-29 | 南京航空航天大学 | Double-laser-beam bilateral synchronous welding filler wire molten drop transition monitoring system and method based on high-speed camera shooting |
| CN111299828A (en) * | 2019-11-27 | 2020-06-19 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
| CN112247359A (en) * | 2020-10-23 | 2021-01-22 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
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2016
- 2016-12-28 CN CN201621453550.XU patent/CN206286711U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735897A (en) * | 2016-12-28 | 2017-05-31 | 西南交通大学 | The device and method of simulation slab narrow gap laser filling wire welding and real-time monitoring |
| CN106735897B (en) * | 2016-12-28 | 2018-06-29 | 西南交通大学 | Simulation slab narrow gap laser filling wire welding and the device and method monitored in real time |
| CN108608113A (en) * | 2018-05-10 | 2018-10-02 | 上海交通大学 | A kind of adaptive laser soldering device and application method based on cooling velocity |
| CN111299828A (en) * | 2019-11-27 | 2020-06-19 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
| CN111299828B (en) * | 2019-11-27 | 2022-02-08 | 北京工业大学 | Thick plate ultra-narrow gap laser wire-filling thermal conduction welding method |
| CN111203639A (en) * | 2020-01-16 | 2020-05-29 | 南京航空航天大学 | Double-laser-beam bilateral synchronous welding filler wire molten drop transition monitoring system and method based on high-speed camera shooting |
| CN111203639B (en) * | 2020-01-16 | 2022-06-21 | 南京航空航天大学 | Double-laser-beam bilateral synchronous welding filler wire molten drop transition monitoring system and method based on high-speed camera shooting |
| CN112247359A (en) * | 2020-10-23 | 2021-01-22 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
| CN112247359B (en) * | 2020-10-23 | 2022-07-05 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
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