CN103612018A - Laser-bypass arc composite welding method - Google Patents
Laser-bypass arc composite welding method Download PDFInfo
- Publication number
- CN103612018A CN103612018A CN201310559656.2A CN201310559656A CN103612018A CN 103612018 A CN103612018 A CN 103612018A CN 201310559656 A CN201310559656 A CN 201310559656A CN 103612018 A CN103612018 A CN 103612018A
- Authority
- CN
- China
- Prior art keywords
- laser
- welding
- electrode
- electric arc
- workpiece
- 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.)
- Granted
Links
Images
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
- B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
- B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
Abstract
The invention relates to a laser-bypass arc composite welding method and belongs to the technical field of laser material machining. Laser is composited with bypass arcs, during welding, the arcs and the laser are user to induce the mutual action of plume, the influence of the plume on the laser is lowered, energy utilization rate and welding efficiency of the laser are increased, and welding process stability and welding joint forming are improved evidently; the arcs are formed above the laser welding area and do not act on a workpiece, thermal influence of the arcs on the workpiece is extremely small, large weld penetration depth can be achieved while weld width is not increased, and the characteristics of laser welding is fully kept.
Description
Technical field
The present invention relates to a kind of welding method, belong to Materialbearbeitung mit Laserlicht technical field, relate in particular to a kind of laser-side-arcing complex welding method.
Background technology
Laser weld has the remarkable advantages such as energy density is high, welding efficiency is high, accessibility is good, heat input is little, and welding deformation is little, welding quality is high, and obtains in a lot of fields applying very widely and developing, and is a kind of the most advanced Material Joining Technology.
The absorptivity of material for laser light is the key factor that affects Materialbearbeitung mit Laserlicht.For metal and alloy thereof, the wavelength of laser beam is shorter, and absorptivity is higher.The short wavelength's such as solid state laser (as optical fiber laser and DISC laser instrument), semiconductor laser laser instrument has had tremendous development in recent years, and its advantage aspect materials processing is also more and more obvious.Take optical fiber laser as example, it its there is short wavelength, high-photoelectric transformation efficiency, high-output power, high light beam quality, low operating cost, volume is little and can Optical Fiber Transmission etc. advantage, and provide a kind of thermal source of high-quality for materials processing.
Plumage brightness is this class laser instrument a kind of basic physical phenomenon while carrying out laser weld.Some scholars find when the welding of research optical-fiber laser, in induced with laser plumage brightness, exist a large amount of particulates to absorb and scattering incident laser, experiment finds that plumage brightness can reach 7% to the energy attenuation of level detection laser, thereby thinks that plumage brightness produces significant impact to High Power Laser Welding process.Other scholar adopts the method for blowing down plumage brightness directly to prove that plumage brightness produces significant impact to welding result.In a word, the plumage brightness of induced with laser has not only caused incident laser energy decay to reduce utilization ratio of laser energy, and welding process stability and welding result are all had a negative impact.
It is more expensive that novel high-power laser instrument and traditional machining tool are compared price, and therefore, while improving welding, the capacity usage ratio of optical-fiber laser not only can reduce production costs effectively, and can enhance productivity.Electric arc is as a kind of welding heat source, technology maturation not only, and also with low cost.Utilize electric arc to suppress the impact of plumage brightness on laser, can effectively improve capacity usage ratio and the welding efficiency of laser.
Although also there is this interaction of electric arc and plumage brightness in conventional laser arc hybrid welding method, but, because the electric arc of energy spread directly acts on surface of the work, increased on the one hand the heat input of workpiece, expanded on the other hand heat effect district, cause the mechanical performance reduction, the thermal deformation increase of workpiece of heat affected area joint, the superiority of laser weld can not get sufficient embodiment, and this traditional hybrid Laser-Arc Welding form have larger restriction to some Welding Structure and welding material.For overcoming these problems, the present invention proposes a kind of laser-side-arcing complex welding method, the method can effectively improve utilization ratio of laser energy, can keep again laser weld feature and can effectively control induced with laser plumage brightness, improves utilization ratio of laser energy and welding efficiency, improves welding process stability and appearance of weld and keep the feature of laser weld.
Summary of the invention
The object of the present invention is to provide a kind of laser-side-arcing complex welding method wherein composite welding apparatus comprise the source of welding current, electrode a, nozzle a, laser beam, focus lamp, electrode b and nozzle b, wherein workpiece is welding object, and deeply molten aperture, welding pool, electric arc, plumage brightness and weld seam form in welding process; During welding, laser beam acts on workpiece, and the position of electric arc and laser beam is relative fixing; The two poles of the earth of the source of welding current are connected with electrode b with electrode a, and electric arc is formed between two electrodes, are positioned at top, LASER BEAM WELDING region; Laser and side-arcing complex welding method that the present invention adopts, utilize the interaction of electric arc and induced with laser plumage brightness, reduce the impact of plumage brightness on laser, not only can improve capacity usage ratio and the welding efficiency of laser, and can significantly improve welding process stability and appearance of weld; In addition, electric arc does not directly act on workpiece, has fully kept the feature of laser weld.
For achieving the above object, the technical solution used in the present invention is a kind of laser-side-arcing complex welding method, in welding process, the energy of laser is used for melting workpiece and realizes penetration fustion welding and form weld seam, arcing interacts with the plumage brightness of induced with laser in welding region top, to reduce the impact of plumage brightness on laser, thereby improve capacity usage ratio and the welding efficiency of laser, significantly improve welding process stability, significantly reduce spatter simultaneously; Electric arc does not directly act on workpiece, but utilizes the interaction of electric arc and laser beam induction plumage brightness effectively to control the plumage brightness in welding process, because electric arc is minimum to the heat affecting of workpiece, therefore complete maintenance the feature of laser weld.
The source of welding current is direct current or interchange or pulse or Variable Polarity power supply; Laser beam is Solid State Laser (optical-fiber laser, YAG laser and DISC laser) or semiconductor laser; Electric arc is non-melt pole electrical arc (TIG electric arc or plasma arcs) or melt pole electrical arc (MIG or MAG); The angle that two electrodes project to surface of the work is 0 °～360 °; Welding method can be added filler wire in addition.
Compared with prior art the present invention has following beneficial effect: adopt laser and side-arcing composite welding, during welding, electric arc and induced with laser plumage brightness interact, utilize high-temperature electric arc to suppress plumage brightness, reduce the impact of plumage brightness on laser, capacity usage ratio and the welding efficiency of laser not only can be improved, and welding process stability and appearance of weld can be significantly improved; Electric arc is formed at laser weld region top, do not directly act on workpiece, so electric arc is minimum to the heat affecting of workpiece, not increasing molten wide in the situation that, can obtain larger fusion penetration, thereby fully keep the feature of laser weld.
Accompanying drawing explanation
Fig. 1 is composite welding apparatus schematic diagram.
Fig. 2 (a) is single laser weld face of weld design sketch.
Fig. 2 (b) is for adopting welded seam surface effect figure of the present invention.
Fig. 3 (a) is single laser weld seam cross-section design sketch.
Fig. 3 (b) is for adopting welded seam cross section design sketch of the present invention.
Fig. 4 (a) is single laser weld plumage brightness aspect graph.
Fig. 4 (b) is for adopting the present invention to weld plumage brightness aspect graph.
In figure: 1, the source of welding current, 2, workpiece, 3, deeply molten aperture, 4, welding pool, 5, electrode a, 6, nozzle a, 7, laser beam, 8, focus lamp, 9, electric arc, 10, plumage brightness, 11, electrode b, 12, nozzle b, 13, weld seam.
The specific embodiment
Below with reference to accompanying drawing, the invention will be further described.
Be illustrated in figure 1 composite welding apparatus schematic diagram, wherein composite welding apparatus comprises the source of welding current 1, electrode a5, nozzle a6, laser beam 7, focus lamp 8, electrode b11 and nozzle b12, wherein workpiece 2 is welding object, and deeply molten aperture 3, welding pool 4, electric arc 9, plumage brightness 10 and weld seam 13 form in welding process; During welding, laser beam 7 acts on workpiece 2, and the position of electric arc 9 and laser beam 7 is relative fixing; The two poles of the earth of the source of welding current 1 are connected with electrode b11 with electrode a5, and electric arc 9 is formed between two electrode a5 and electrode b11, are positioned at laser beam 7 welding region tops; In welding process, the energy of laser is used for melting workpiece 2 and realizes penetration fustion welding and form weld seam 13, electric arc 9 acts on welding region top and interacts with the plumage brightness 10 of induced with laser, to reduce the impact of plumage brightness 10 on laser, thereby improve capacity usage ratio and the welding efficiency of laser, significantly improve welding process stability, significantly reduce spatter simultaneously; Electric arc 9 does not directly act on workpiece 2, but utilizes the interaction of electric arc 9 and laser beam 7 induction plumage brightness 10 effectively to control the plumage brightness 10 in welding process, because the heat affecting of 9 pairs of workpiece 2 of electric arc is minimum, therefore complete maintenance the feature of laser weld.
The source of welding current 1 is direct current or interchange or pulse or Variable Polarity power supply; Laser beam 7 is Solid State Laser (optical-fiber laser, YAG laser and DISC laser) or semiconductor laser; Electric arc 9 is non-melt pole electrical arc (TIG electric arc or plasma arcs) or melt pole electrical arc (MIG or MAG); The angle that two electrode a5 and electrode b11 project to surface of the work is 0 °～360 °; Welding method can be added filler wire in addition.
Be single laser weld face of weld design sketch as shown in Figure 2 (a) shows, Fig. 2 (b) is for adopting welded seam surface effect figure of the present invention, Fig. 3 (a) is single laser weld seam cross-section design sketch, Fig. 3 (b) is for adopting welded seam cross section design sketch of the present invention, Fig. 4 (a) is single laser weld plumage brightness aspect graph, Fig. 4 (b) is for adopting the present invention to weld plumage brightness aspect graph, in the present embodiment, workpiece is the ingot iron that 10mm is thick, the laser instrument that experiment adopts is YLS-6000 optical fiber laser, and its wavelength is 1.07 μ m; Welding arc is direct current TIG electric arc; Welding condition is: laser power 5000W, arc current 100A, speed of welding 3m/min; By comparison diagram 2(a) and Fig. 2 (b) be respectively single laser weld face of weld design sketch and adopt the resulting face of weld design sketch of the present invention, adopt the present invention to weld and significantly improved welding process stability, significantly reduce spatter, improved appearance of weld; Fig. 3 (b) is for adopting the resulting seam cross-section of the present invention, in identical laser power and speed of welding situation, welding penetration is than single fiber laser weld, the fusion penetration of seeing Fig. 3 (a) significantly improves, and molten wide not increase, visible, employing the present invention can improve capacity usage ratio and the welding efficiency of laser, has kept the feature of laser weld simultaneously; The plumage brightness form that Fig. 4 (a) produces while being depicted as optical-fiber laser welding; Under the effect of electric arc, the plumage brightness of electric arc top significantly weakens, and has embodied the action effect of electric arc to plumage brightness, as shown in Figure 4 (b); Adopt the present invention to utilize the interaction of electric arc and induced with laser plumage brightness, greatly weaken the impact of plumage brightness on incident laser, thereby improve capacity usage ratio and the welding efficiency of laser, stabilized welding process, improve appearance of weld, fully kept the feature of laser weld simultaneously.
Claims (2)
1. laser-side-arcing complex welding method, it is characterized in that: composite welding apparatus comprises the source of welding current (1), electrode a(5), nozzle a(6), laser beam (7), focus lamp (8), electrode b(11) and nozzle b(12), wherein workpiece (2) is welding object, and deeply molten aperture (3), welding pool (4), electric arc (9), plumage brightness (10) and weld seam (13) form in welding process; During welding, laser beam (7) acts on workpiece (2), and electric arc (9) is relative fixing with the position of laser beam (7); The two poles of the earth of the source of welding current (1) and electrode a(5) with electrode b(11) be connected, electric arc (9) is formed at two electrode a(5) and electrode b(11) between, be positioned at laser beam (7) welding region top; In welding process, the energy of laser is used for melting workpiece (2) and realizes penetration fustion welding and form weld seam (13); Electric arc (9) does not directly act on workpiece (2).
2. a kind of laser-side-arcing complex welding method according to claim 1, is characterized in that: the source of welding current (1) is direct current or interchange or pulse or Variable Polarity power supply; Laser beam (7) is Solid State Laser or semiconductor laser; Electric arc (9) is non-melt pole electrical arc or melt pole electrical arc; Two electrode a(5) and electrode b(11) angle that projects to surface of the work is 0 °～360 °; Welding method can be added filler wire in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559656.2A CN103612018B (en) | 2013-11-12 | 2013-11-12 | A kind of laser-side-arcing complex welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559656.2A CN103612018B (en) | 2013-11-12 | 2013-11-12 | A kind of laser-side-arcing complex welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103612018A true CN103612018A (en) | 2014-03-05 |
| CN103612018B CN103612018B (en) | 2015-11-18 |
Family
ID=50162752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310559656.2A Active CN103612018B (en) | 2013-11-12 | 2013-11-12 | A kind of laser-side-arcing complex welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103612018B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945430A (en) * | 2016-05-30 | 2016-09-21 | 重庆理工大学 | High-efficiency welding method utilizing low-power laser based on induction of microbeam plasma arc |
| CN106141437A (en) * | 2016-08-15 | 2016-11-23 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of laser and double plasma arc composite welding apparatus |
| CN110238527A (en) * | 2019-06-28 | 2019-09-17 | 中国航空制造技术研究院 | A kind of Multifunction laser welding method and apparatus |
| CN110587137A (en) * | 2019-10-14 | 2019-12-20 | 广东省焊接技术研究所（广东省中乌研究院） | Composite welding method for aluminum alloy and welded joint |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003200283A (en) * | 2001-12-27 | 2003-07-15 | Honda Motor Co Ltd | Method and equipment of composite welding of yag laser and arc |
| CN1526507A (en) * | 2003-09-20 | 2004-09-08 | 大连理工大学 | Magnesium alloy laser-TIG welding process |
| US20050011868A1 (en) * | 2001-09-13 | 2005-01-20 | Olivier Matile | Hybrid laser-arc welding method with gas flow rate adjustment |
| JP2010064095A (en) * | 2008-09-10 | 2010-03-25 | Panasonic Corp | Composite welding method |
| JP2011098371A (en) * | 2009-11-05 | 2011-05-19 | Ihi Corp | Laser arc hybrid welding method |
| WO2011111634A1 (en) * | 2010-03-08 | 2011-09-15 | 株式会社神戸製鋼所 | Laser/arc hybrid welding method and method of producing welded member using same |
| JP5219959B2 (en) * | 2009-08-11 | 2013-06-26 | 三菱電機株式会社 | T-joint welding method and apparatus |
-
2013
- 2013-11-12 CN CN201310559656.2A patent/CN103612018B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050011868A1 (en) * | 2001-09-13 | 2005-01-20 | Olivier Matile | Hybrid laser-arc welding method with gas flow rate adjustment |
| JP2003200283A (en) * | 2001-12-27 | 2003-07-15 | Honda Motor Co Ltd | Method and equipment of composite welding of yag laser and arc |
| CN1526507A (en) * | 2003-09-20 | 2004-09-08 | 大连理工大学 | Magnesium alloy laser-TIG welding process |
| JP2010064095A (en) * | 2008-09-10 | 2010-03-25 | Panasonic Corp | Composite welding method |
| JP5219959B2 (en) * | 2009-08-11 | 2013-06-26 | 三菱電機株式会社 | T-joint welding method and apparatus |
| JP2011098371A (en) * | 2009-11-05 | 2011-05-19 | Ihi Corp | Laser arc hybrid welding method |
| WO2011111634A1 (en) * | 2010-03-08 | 2011-09-15 | 株式会社神戸製鋼所 | Laser/arc hybrid welding method and method of producing welded member using same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945430A (en) * | 2016-05-30 | 2016-09-21 | 重庆理工大学 | High-efficiency welding method utilizing low-power laser based on induction of microbeam plasma arc |
| CN106141437A (en) * | 2016-08-15 | 2016-11-23 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of laser and double plasma arc composite welding apparatus |
| CN110238527A (en) * | 2019-06-28 | 2019-09-17 | 中国航空制造技术研究院 | A kind of Multifunction laser welding method and apparatus |
| CN110238527B (en) * | 2019-06-28 | 2020-11-10 | 中国航空制造技术研究院 | Multifunctional laser welding method and equipment |
| CN110587137A (en) * | 2019-10-14 | 2019-12-20 | 广东省焊接技术研究所（广东省中乌研究院） | Composite welding method for aluminum alloy and welded joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103612018B (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101474726B (en) | Narrow gap laser-arc hybrid welding method using filler wire | |
| CN103071935B (en) | Laser-arc composite welding device based on heat input control and welding method | |
| CN103862178B (en) | A kind of method eliminating Laser Welding of Aluminum Alloys pore | |
| 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 | |
| Huang et al. | Research on weld formation mechanism of laser-MIG arc hybrid welding with butt gap | |
| CN104985327A (en) | Bifocus laser and InFocus arc hybrid welding method | |
| CN109604831B (en) | Laser TIG (tungsten inert gas) hybrid welding process for improving laser welding undercut of titanium and titanium alloy sheets | |
| CN107598371A (en) | A kind of welding method of coppersmith part | |
| CN103612018B (en) | A kind of laser-side-arcing complex welding method | |
| CN107790886B (en) | Pulsed negative pressure formula laser enhancing KTIG and MIG composite welding apparatus and method | |
| CN101817112A (en) | Single power supply single-surface serial double-TIG (Tungsten Inert Gas) arc welding method | |
| CN103128423A (en) | Laser tungsten inert gas (TIG) arc coaxial hybrid welding method with additional high frequency magnetic field and device | |
| CN104907696A (en) | Laser-arc hybrid welding method with welding current value considered | |
| CN102886612A (en) | Laser-plasma arc double-side hybrid welding method | |
| CN104772552A (en) | Three-wire gas shielded indirect electric arc welding method, device, overlay welding method and narrow gap welding method | |
| CN104999181B (en) | A kind of laser InFocus electric arcs bifocus complex welding method | |
| CN101745747A (en) | Laser-electric arc composite welding method through extra electric field | |
| CN102848085A (en) | Laser-single power double-wire pulse arc hybrid welding system and use method for same | |
| CN101549440A (en) | Laser-electrical arc composite heat source welding method and welding device | |
| CN103170753A (en) | Arc paraxial welding device and method of laser consumable electrode additionally provided with high-frequency magnetic field | |
| CN204524549U (en) | A kind of bifocus recombination laser welding processing head | |
| CN105798462A (en) | Welding method utilizing laser-MAG compound heat source | |
| CN108705195A (en) | Energy restrains type narrow gap laser welding with filler wire method | |
| CN103831533A (en) | Titanium alloy laser-MIG composite welding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |