CN103128423B - Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device - Google Patents
Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device Download PDFInfo
- Publication number
- CN103128423B CN103128423B CN201310039006.5A CN201310039006A CN103128423B CN 103128423 B CN103128423 B CN 103128423B CN 201310039006 A CN201310039006 A CN 201310039006A CN 103128423 B CN103128423 B CN 103128423B
- Authority
- CN
- China
- Prior art keywords
- laser
- welding
- arc
- tig
- electric arc
- 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.)
- Expired - Fee Related
Links
Abstract
The invention relates to a laser TIG arc coaxial hybrid welding method with an additional high frequency magnetic field and a device. The method includes firstly connecting positive and negative poles of a TIG welding machine to a workpiece and a tungsten electrode respectively, then connecting an exciting power output end to a field coil, connecting the field coil with a laser TIG composite welding head through a composite welding head connecting device, and determining a welding running path; and opening an exciting power supply to supply power for the field coil; opening shielding gas for welding and observing the weld seam formation condition. The method and the device have the advantages that the arc pneumatic pressure and the arc current density are effectively improved, so that the arc heat distribution is concentrated, the arc radius is compressed, the arc energy density and the arc stiffness are further improved, the stability of the welding arc in a laser arc composite welding process is improved, the coaxial composite degree of the laser and the arc during laser TIG arc composite coaxial welding is quite facilitated.
Description
Technical field
The present invention relates to materials processing technology field, particularly the laser TIG electric arc coaxial hybrid welding in external high-frequency magnetic field connects method and device.
Background technology
In laser-TIG electric arc coaxial hybrid welding connects, because electric arc and laser have good alignment, there is not the two relative position problem, and the contour horizontal welding requirements of laser-TIG electric arc combined welding 3 D stereo welding can be realized smoothly, but, in high power laser electric arc coaxial hybrid welding termination process, photo plasma shields outside laser effect laser utilization on the one hand, also can make the drift of welding arc generation anode spot, affect the axiality that laser-TIG electric arc coaxial hybrid welding connects both middle laser and electric arc, affect welding quality.
Patent document: the electric arc combined melt-brazing method of laser TIG that a kind of electromagnetic electric current coupled field is auxiliary and equipment, number of patent application: 201010171331.3, in the mode of externally-applied magnetic field, additional low frequency magnetic field is adopted to make electric arc rotary expansion melt solder, for hybrid Laser-Arc Welding soldering, secondly, it is average that additional low frequency magnetic field makes the heat of electric arc thermal source input, the input of electric arc arc column central hot reduces, the ability that electric arc itself impacts fusion penetration ability and the burning of hybrid Laser-Arc Welding arc stability reduces, in the present invention, external high-frequency magnetic field makes welding arc generation magnetic compression, after the energy density of welding arc and deflection obtain increase, play the effect increasing fusion penetration and stable arc burning, patent described in document belongs to a kind of wire filling laser welding in welding method in addition, TIG electric arc be produce between solder and tungsten electrode and be not between tungsten electrode and workpiece, it not the electric arc combined welding of traditional laser-TIG, simultaneously, what the present invention adopted is that laser-TIG electric arc coaxial hybrid welding connects method.
Based on above understanding, the present invention proposes external high-frequency magnetic field, act on the photo plasma that laser produces on the one hand, reduce the three-dimensional shielding action to laser such as photic grade, act on welding arc on the other hand, improve electric arc homeostasis burning capacity, increase laser and electric arc in coaxial hybrid welding termination process, have wide market and application prospect.
Summary of the invention
The object of this invention is to provide a kind of when improving laser utilization and laser TIG electric arc combined coaxial welding laser connect method and device with the laser-TIG electric arc coaxial hybrid welding in the external high-frequency magnetic field of the coaxial Compound Degree of electric arc.
For achieving the above object, the present invention realizes by the following technical solutions:
The laser TIG electric arc coaxial hybrid welding in external high-frequency magnetic field connects method, completes according to the following steps:
1) first the both positive and negative polarity of tig arc welding machine is connected to workpiece and tungsten electrode respectively, then excitation power supply output is connected on magnetizing coil, magnetizing coil is linked together by composite welding head jockey and Laser-TIG Hybrid Welding head, determines to weld walking path;
2) excitation power supply is opened, power to magnetizing coil, the exciting curent produced by excitation power supply, power supply is to magnetizing coil, making magnetizing coil connect region generation frequency at laser-TIG electric arc coaxial hybrid welding is the high frequency magnetic field of 0 ~ 20KHz, laser-TIG electric arc coaxial hybrid welding connect region produce high frequency magnetic field act on laser produce photo plasma, reduce photo plasma to the shielding action of laser, improve laser utilization, simultaneously, also act on welding arc, due to the high-frequency change of externally-applied magnetic field and the difference of arc-plasma and air permeability, a magnetic pressure difference △ P will be formed inside and outside electric arc, this magnetic pressure missionary society produces high frequency magnetic compression effect to electric arc, improve arc energy density and deflection, compression arc radius, improve laser-TIG electric arc coaxial hybrid welding to connect middle electric arc homeostasis burning capacity and impact the ability of fusion penetration, improve laser beam in laser-TIG electric arc coaxial hybrid welding termination process simultaneously and keep coaxial ability with electric arc, avoid the welding procedure defect owing to producing because coaxial degree reduces in welding process,
3) open protection gas to weld, observe appearance of weld situation, the introducing intensity of high frequency magnetic field is adjusted by the dutycycle of the exciting curent and 25% ~ 75% that regulate 0 ~ 200A, by the pull-in frequency regulating the exciting curent frequency of 0 ~ 20KHz to adjust high frequency magnetic field, improve the electric arc combined welded seam forming technology of laser-TIG, weld penetration can increase along with the increase of exciting curent frequency and magnetic field intensity, under the welding current of 0 identical ~ 500A and the laser power of 0 ~ 6000W, external high-frequency magnetic field is significantly increased than not adding the weld penetration that magnetic field laser-TIG electric arc coaxial hybrid welding connects, increasing degree is about 10% ~ 35%, the grain structure of welding heat affected zone becomes fine and closely woven, crisp hard tendency obviously reduces.
Laser-TIG electric arc the coaxial hybrid welding in external high-frequency magnetic field connects the device that method uses, comprise tig arc welding machine, laser-TIG electric arc coaxial hybrid welding joint, tungsten electrode, magnetizing coil, excitation power supply and composite welding head jockey, the both positive and negative polarity of described tig arc welding machine is connected with tungsten electrode with workpiece respectively, tungsten electrode is arranged on the inside of Laser-TIG Hybrid Welding head, Laser-TIG Hybrid Welding head bottom is connected with magnetizing coil by composite welding head jockey, and magnetizing coil two ends are connected with the both positive and negative polarity of excitation power supply respectively.
Compared with prior art, the invention has the beneficial effects as follows:
Laser-TIG electric arc the coaxial hybrid welding in external high-frequency magnetic field connects method and device, have the advantages that volume is little, cost is low, easy to use, due to external high-frequency magnetic field, effectively improve electric arc Pneumatic pressure, arc current density, electric arc heat is distributed more concentrated, have compressed arc radius, and then improve the deflection of arc energy density and electric arc, these all make the degree of stability of welding arc in hybrid Laser-Arc Welding process improve, and then the coaxial Compound Degree of laser and electric arc when being extremely conducive to the electric arc combined coaxial welding of laser-TIG, on the other hand, the charged particle in plasma can be made to move under the effect of Lorentz force, the shape of its density and distribution and plasma and position all can change, thus reduce photo plasma to the screen effect of laser, improve utilization ratio of laser energy, thus improve welding efficiency and welding process stability further, in addition, external high-frequency magnetic field also helps the flowing of molten pool metal and the refinement of weld grain tissue, and then effectively improve the appearance of weld that laser-TIG electric arc coaxial hybrid welding connects from every side, effectively optimize welding procedure, there are wide market and application prospect.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention.
1-tig arc welding machine, 2-laser-TIG electric arc coaxial hybrid welding joint, 3-tungsten electrode, 4-workpiece, 5-magnetizing coil, 6-excitation power supply, 7-composite welding head jockey, 8-laser beam
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated:
As shown in Figure 1, the laser TIG electric arc coaxial hybrid welding in external high-frequency magnetic field of the present invention connects the device that method uses, comprise tig arc welding machine 1, laser-TIG electric arc coaxial hybrid welding joint 2, tungsten electrode 3, magnetizing coil 5, excitation power supply 6 and composite welding head jockey 7, the both positive and negative polarity of described tig arc welding machine 1 is connected with tungsten electrode 3 with workpiece 4 respectively, tungsten electrode 3 is arranged on the inside of Laser-TIG Hybrid Welding head 2, Laser-TIG Hybrid Welding head 2 bottom is connected with magnetizing coil 5 by composite welding head jockey 7, magnetizing coil 5 two ends are connected with the both positive and negative polarity of excitation power supply 6 respectively.
Laser-TIG electric arc the coaxial hybrid welding in external high-frequency magnetic field connects method, completes according to the following steps:
1) first the both positive and negative polarity of tig arc welding machine 1 is connected to workpiece 4 and tungsten electrode 3 respectively, then excitation power supply 6 output is connected on magnetizing coil 5, magnetizing coil 5 is linked together by composite welding head jockey 7 and Laser-TIG Hybrid Welding head 2, determines to weld walking path;
2) excitation power supply 6 is opened, power to magnetizing coil 5, the exciting curent produced by excitation power supply 6, making magnetizing coil 5 connect region generation frequency at laser-TIG electric arc coaxial hybrid welding is the high frequency magnetic field of 0 ~ 20KHz, laser-TIG electric arc coaxial hybrid welding connect region produce high frequency magnetic field act on laser produce photo plasma, reduce photo plasma to the shielding action of laser, improve laser utilization, simultaneously, also act on welding arc, due to the high-frequency change of externally-applied magnetic field and the difference of arc-plasma and air permeability, a magnetic pressure difference △ P will be formed inside and outside electric arc, this magnetic pressure missionary society produces high frequency magnetic compression effect to electric arc, improve arc energy density and deflection, compression arc radius, improve laser-TIG electric arc coaxial hybrid welding to connect middle electric arc homeostasis burning capacity and impact the ability of fusion penetration, improve laser beam in laser-TIG electric arc coaxial hybrid welding termination process simultaneously and keep coaxial ability with electric arc, avoid the welding procedure defect owing to producing because coaxial degree reduces in welding process,
3) open protection gas to weld, observe appearance of weld situation, the introducing intensity of high frequency magnetic field is adjusted by the dutycycle of the exciting curent and 25% ~ 75% that regulate 0 ~ 200A, by the pull-in frequency regulating the exciting curent frequency of 0 ~ 20KHz to adjust high frequency magnetic field, improve the electric arc combined welded seam forming technology of laser-TIG, weld penetration can increase along with the increase of exciting curent frequency and magnetic field intensity, under the welding current of 0 identical ~ 500A and the laser power of 0 ~ 6000W, external high-frequency magnetic field is significantly increased than not adding the weld penetration that magnetic field laser-TIG electric arc coaxial hybrid welding connects, increasing degree is about 10% ~ 35%, the grain structure of welding heat affected zone becomes fine and closely woven, crisp hard tendency obviously reduces.
When using this method; first according to the material, thickness of slab, cut form etc. of workpiece 4; specify welding condition; as welding current, laser power, speed of welding, shielding gas flow amount, tungsten electrode 3 and workpiece 4 apart from etc., these technological parameters are according to without the electric arc combined welding standard technological parameter formulation of laser-TIG during externally-applied magnetic field.
Embodiment one
Laser-TIG electric arc paraxonic the composite welding of galvanized steel plain sheet Q345B and 7075 aluminum alloy materials, utilize external high-frequency magnetic field assistant laser-TIG electric arc paraxonic complex welding method, welding work pieces 4 thickness is 3mm, banjo fixing butt jointing, composite welding process parameter is: DC TIG welding connects, excitation power supply 6 positive pole receives the upper end of magnetizing coil 5, and excitation power supply 6 negative pole receives the lower end of magnetizing coil 5, tungsten electrode 3 diameter of phi 2-4mm; Welding current 100-220A; Exciting curent frequency 1 ~ 20KHz; Dutycycle 25% ~ 50%; IPG YLS-6000 optical fiber laser, power 3500W, spot diameter 1mm, speed of welding 0.1-3.5m/min, by parameter optimization, reach required joint performance.
Be only general principle of the present invention above, not impose any restrictions the present invention, the present invention of every foundation carries out equivalent variations and modification to it, all within the category of the art of this patent protection scheme.
Claims (1)
1. the laser TIG electric arc coaxial hybrid welding in external high-frequency magnetic field connects method, it is characterized in that, completes according to the following steps:
1) first the both positive and negative polarity of tig arc welding machine is connected to workpiece and tungsten electrode respectively, then excitation power supply output is connected on magnetizing coil, magnetizing coil is linked together by composite welding head jockey and Laser-TIG Hybrid Welding head, determines to weld walking path;
2) excitation power supply is opened, power to magnetizing coil, the exciting curent produced by excitation power supply, making magnetizing coil connect region generation frequency at laser-TIG electric arc coaxial hybrid welding is the high frequency magnetic field of 0 ~ 20KHz, laser-TIG electric arc coaxial hybrid welding connect region produce high frequency magnetic field act on laser produce photo plasma, reduce photo plasma to the shielding action of laser, improve laser utilization, simultaneously, also act on welding arc, due to the high-frequency change of externally-applied magnetic field and the difference of arc-plasma and air permeability, a magnetic pressure difference △ P will be formed inside and outside electric arc, this magnetic pressure missionary society produces high frequency magnetic compression effect to electric arc, improve arc energy density and deflection, compression arc radius, improve laser-TIG electric arc coaxial hybrid welding to connect middle electric arc homeostasis burning capacity and impact the ability of fusion penetration, improve laser beam in laser-TIG electric arc coaxial hybrid welding termination process simultaneously and keep coaxial ability with electric arc, avoid the welding procedure defect owing to producing because coaxial degree reduces in welding process,
3) open protection gas to weld, observe appearance of weld situation, the introducing intensity of high frequency magnetic field is adjusted by the dutycycle of the exciting curent and 25% ~ 75% that regulate 0 ~ 200A, by the pull-in frequency regulating the exciting curent frequency of 0 ~ 20KHz to adjust high frequency magnetic field, improve the electric arc combined welded seam forming technology of laser-TIG, weld penetration can increase along with the increase of exciting curent frequency and magnetic field intensity, under the welding current of 0 identical ~ 500A and the laser power of 0 ~ 6000W, external high-frequency magnetic field is significantly increased than not adding the weld penetration that magnetic field laser-TIG electric arc coaxial hybrid welding connects, increasing degree is 10% ~ 35%, the grain structure of welding heat affected zone becomes fine and closely woven, crisp hard tendency obviously reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310039006.5A CN103128423B (en) | 2013-01-31 | 2013-01-31 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310039006.5A CN103128423B (en) | 2013-01-31 | 2013-01-31 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103128423A CN103128423A (en) | 2013-06-05 |
| CN103128423B true CN103128423B (en) | 2015-03-04 |
Family
ID=48489223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310039006.5A Expired - Fee Related CN103128423B (en) | 2013-01-31 | 2013-01-31 | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103128423B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737176B (en) * | 2013-12-30 | 2016-08-31 | 华中科技大学 | A kind of laser and electromagnetic pulse complex welding method and equipment |
| CN103741138B (en) * | 2013-12-31 | 2017-02-22 | 浙江工业大学 | Static magnetic field-laser coaxial composite fusion covering method and device |
| CN103737164B (en) * | 2014-01-03 | 2016-11-09 | 上海交通大学 | Plasma column compressor |
| CN104588846A (en) * | 2014-12-08 | 2015-05-06 | 沈阳工业大学 | Method and device for increasing TIG welding electric arc energy density |
| CN104907744B (en) * | 2015-05-25 | 2016-05-25 | 中南大学 | Coaxial type opto-electronic device automatic coupling welder based on magnetic converting technique |
| CN105537768B (en) * | 2016-02-29 | 2017-09-05 | 温州大学 | A kind of magnetic field assistant laser welding device and method |
| CN106353616A (en) * | 2016-08-31 | 2017-01-25 | 卢俊文 | System for measuring magnetic field interference from train to trackside axle counter |
| CN106903448B (en) * | 2016-12-26 | 2019-10-22 | 南京航空航天大学 | A kind of electric arc, laser, the more mixed-energy domain method of manufacturing technology in magnetic field |
| CN108213753A (en) * | 2017-12-30 | 2018-06-29 | 沈阳富创精密设备有限公司 | A kind of laser TIG composite welding heads of new model |
| CN108436275B (en) * | 2018-03-01 | 2021-07-16 | 哈尔滨焊接研究院有限公司 | Coaxial composite welding method of ultrahigh-power laser and three-tungsten-electrode magnetic control rotating electric field |
| CN108515267B (en) * | 2018-03-01 | 2021-07-23 | 哈尔滨焊接研究院有限公司 | Ultrahigh-power laser and stirring electric field coaxial composite welding method |
| CN108453387B (en) * | 2018-03-01 | 2021-07-16 | 哈尔滨焊接研究院有限公司 | Coaxial composite welding method of ultrahigh-power laser and multi-tungsten-electrode magnetic control rotating electric field |
| CN108581194A (en) * | 2018-06-28 | 2018-09-28 | 广东正业科技股份有限公司 | A kind of method and apparatus of removal plasma cloud |
| CN110293325B (en) * | 2019-07-29 | 2020-10-30 | 长沙理工大学 | Thick plate laser cutting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172312A (en) * | 2007-11-09 | 2008-05-07 | 重庆大学 | Electromagnetic control electro-gas welding method and equipment thereof |
| CN101176954A (en) * | 2007-12-07 | 2008-05-14 | 北京工业大学 | Laser electrical arc complex welding method for intensifying current magnetohydrodynamics effect |
| CN101195183A (en) * | 2007-12-24 | 2008-06-11 | 哈尔滨工业大学 | Ultrasound wave auxiliary laser braze (fuse) welding method |
| CN101367157A (en) * | 2008-10-10 | 2009-02-18 | 机械科学研究院哈尔滨焊接研究所 | High-strength or ultra-high strong steel laser-electrical arc composite heat source welding method |
| CN101670495A (en) * | 2009-09-28 | 2010-03-17 | 北京工业大学 | Laser-TIG electric arc hybrid welding technology for spaceflight aluminum alloy plate with medium thickness and high strength |
| CN101862913A (en) * | 2010-05-13 | 2010-10-20 | 重庆大学 | Electromagnetic current coupling field assisted hybrid melting-brazing method for laser-TIG arc and equipment |
| CN203184840U (en) * | 2013-01-31 | 2013-09-11 | 南京煜宸激光科技有限公司 | Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000079469A (en) * | 1998-09-02 | 2000-03-21 | Mitsubishi Heavy Ind Ltd | Welding method and welding equipment |
| JP2008055461A (en) * | 2006-08-31 | 2008-03-13 | Hitachi-Ge Nuclear Energy Ltd | Welding method for nuclear power generation plant structural material |
| DE102006048580C5 (en) * | 2006-10-13 | 2015-02-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for crack-free welding, repair welding or build-up welding of hot crack susceptible materials |
-
2013
- 2013-01-31 CN CN201310039006.5A patent/CN103128423B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101172312A (en) * | 2007-11-09 | 2008-05-07 | 重庆大学 | Electromagnetic control electro-gas welding method and equipment thereof |
| CN101176954A (en) * | 2007-12-07 | 2008-05-14 | 北京工业大学 | Laser electrical arc complex welding method for intensifying current magnetohydrodynamics effect |
| CN101195183A (en) * | 2007-12-24 | 2008-06-11 | 哈尔滨工业大学 | Ultrasound wave auxiliary laser braze (fuse) welding method |
| CN101367157A (en) * | 2008-10-10 | 2009-02-18 | 机械科学研究院哈尔滨焊接研究所 | High-strength or ultra-high strong steel laser-electrical arc composite heat source welding method |
| CN101670495A (en) * | 2009-09-28 | 2010-03-17 | 北京工业大学 | Laser-TIG electric arc hybrid welding technology for spaceflight aluminum alloy plate with medium thickness and high strength |
| CN101862913A (en) * | 2010-05-13 | 2010-10-20 | 重庆大学 | Electromagnetic current coupling field assisted hybrid melting-brazing method for laser-TIG arc and equipment |
| CN203184840U (en) * | 2013-01-31 | 2013-09-11 | 南京煜宸激光科技有限公司 | Laser-TIG electric arc coaxial hybrid welding device with external high frequency magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103128423A (en) | 2013-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103128423B (en) | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device | |
| CN103170753A (en) | Arc paraxial welding device and method of laser consumable electrode additionally provided with high-frequency magnetic field | |
| CN103862177B (en) | Laser-GMA arc composite heat source welding with filler wire method | |
| CN101670495B (en) | Laser-TIG electric arc hybrid welding technology for spaceflight aluminum alloy plate with medium thickness and high strength | |
| CN103071937B (en) | Laser-TIG (Tungsten Inert Gas) arc rangefinder hybrid welding method and device with addition of high frequency magnetic field | |
| AU2020103796A4 (en) | A Laser-GMA Arc Composite Heat Source Wire-filled Welding Method | |
| US20130309000A1 (en) | Hybrid laser arc welding process and apparatus | |
| CN107790886B (en) | Pulsed negative pressure formula laser enhancing KTIG and MIG composite welding apparatus and method | |
| CN107999962B (en) | A kind of method for laser welding of double CMT/ mariages CMT auxiliary | |
| CN105414733A (en) | Method for welding heterogenous system aluminum alloy through electron beams | |
| CN108544093B (en) | A kind of low-alloy steel low power laser-electric arc combined all-position welding method | |
| CN104985327A (en) | Bifocus laser and InFocus arc hybrid welding method | |
| CN102848085A (en) | Laser-single power double-wire pulse arc hybrid welding system and use method for same | |
| CN101817112A (en) | Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method | |
| CN102069305B (en) | Laser twin-electric arc compound welding system | |
| CN104858554B (en) | A kind of plasma arc and double MIG carry out the welding torch being combined | |
| CN102069306A (en) | Laser-double-wire pulsed arc composite welding system | |
| CN107363399A (en) | A kind of method of electric arc auxiliary laser weldering | |
| CN104858538B (en) | Airflow waveform modulation variable-polarity plasma welding method | |
| CN105215552A (en) | A kind of stainless steel welding | |
| CN104785931B (en) | A kind of plasma-submerged arc composite welding system and welding method thereof | |
| CN203184844U (en) | Laser consumable electrode electric arc paraxial hybrid welding device with additional high frequency magnetic field | |
| CN203184841U (en) | Laser-TIG electric arc paraxial hybrid welding device with external high frequency magnetic field | |
| CN113102891B (en) | Method and device for inhibiting aluminum alloy laser-MIG (Metal-inert gas) composite welding collapse by external magnetic field | |
| CN109894723A (en) | A kind of method of additional electromagnetic field auxiliary CMT welding aluminum alloy thin plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20170131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |