CN101474727A - Laser-arc hybrid welding method of light sheet T type joint - Google Patents
Laser-arc hybrid welding method of light sheet T type joint Download PDFInfo
- Publication number
- CN101474727A CN101474727A CN 200910077012 CN200910077012A CN101474727A CN 101474727 A CN101474727 A CN 101474727A CN 200910077012 CN200910077012 CN 200910077012 CN 200910077012 A CN200910077012 A CN 200910077012A CN 101474727 A CN101474727 A CN 101474727A
- Authority
- CN
- China
- Prior art keywords
- laser
- welding
- electric arc
- laser beam
- 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.)
- Pending
Links
Images
Landscapes
- Laser Beam Processing (AREA)
Abstract
The invention relates to a laser-arc composite welding method for a T-shaped joint of a thin plate, belonging to the technical field of laser materials processing. The method adopts a laser-arc composite thermal source to complete the welding of the T-shaped joint on the lateral face of a bottom plate, a laser bean enters from the top face of the bottom plate, an electric arc is in paraxial arrangement at the front part or the rear of the laser bean, and the composite thermal source accomplishes the penetration fusion welding from the lateral face of the bottom plate of the T-shaped joint. The welding seam of the joint welded by the method is favorably shaped, a weld toe of the connection part of a rib plate and the bottom plate is uniformly and smoothly transited, and air holes, cracks and other defects are not presented after the welding seam is anatomized. The method fully utilizes the characteristics of the composite thermal source; and under the mutual actions of laser and arc, the stability of a welding process is obviously improved, the welding efficiency is increased, and the welding deformation can be lessened.
Description
Technical field
The present invention relates to a kind of laser-electric arc complex welding method of light sheet T type joint, belong to the Materialbearbeitung mit Laserlicht technical field.
Background technology
In Aero-Space, boats and ships are in the bullet train industry, be the implementation structure lightweight,, cut down the consumption of energy to realize weight reduction, economical with materials consumes, and is that the covering of representative and the designs for welding structure of skeleton composition become one of mainstream technology with the T connector, and is successfully applied in the large-size components.
Laser welding technology is reliable with technology, and the characteristics of low distortion and flexibility become the manufacturing process that this class formation connects tool technology and economic advantages, and successfully substituted traditional riveting process.For example, on ghost A340 aircraft, the T connector that fuselage skin and interior brace summer are formed adopts laser welding technology to replace traditional riveting technology, not only makes aircraft weight alleviate 15%, and production efficiency significantly improves simultaneously.De Guo Mayer shipyard has been applied to laser welding technology make structure loss of weight maximum up to 40% in the welding of T type structure " sandwich " deck of boat in addition.
Laser weld for light sheet T type joint mainly contains following several method at present: (1) adopts single laser beam from the welding respectively of gusset both sides order, the strictness of this method welding process requirement, welding efficiency is low, stress deformation is wayward, postwelding rectification workload is very big, and significant limitation is arranged in actual applications.
(2) utilize two bundle laser to weld synchronously from T connector gusset both sides respectively, this method is compared with first method, though can improve welding efficiency, welding stress deformation is controlled, but equally the assembly precision of gusset and base plate is had relatively high expectations, and welding process requirement is quite strict, in addition, need two laser instrument collaborative works or a superpower laser to adopt the spectroscope beam splitting, and weld after focusing on respectively, cause welding cost sharply to increase.With the commercial Application expansion, some T connector welding are subjected to structure, size restrictions, can not connect from the gusset face down bonding, can only weld from plate top surface for this class formation in addition, and above-mentioned two kinds of welding methods are just powerless.(3) adopt laser beam to penetrate welding from the plate top surface of T connector, this method can realize T type structure from the welding of base plate top, requires very highly but the T connector base plate dock fit-up gap with gusset, and general requirement is the zero clearance.On the other hand, gusset and the fusion of back plate connections toe of weld are bad, exist bigger stress to concentrate, and the faying surface section of weld joint is less simultaneously, and the weld seam shear strength is low.During particularly importantly this method, almost can not overcome, as shown in Figure 1, influence welding quality at the formation pore of the root of weld.
In a word, though adopt above-mentioned method for laser welding can carry out the welding of light sheet T type joint, but all in various degree to exist welding efficiency low, stress deformation is wayward, and assembly precision is required height, technological requirement strictness, the weld seam shear strength is low, and welding cost is than problems such as height, and particularly for larger-size T connector, it is particularly outstanding that these problems seem.
Summary of the invention
The objective of the invention is to light sheet T type structure, adopt the laser-electric arc compound welding technology, develop a kind of method for laser welding from the plate top surface welding at extensive use in the aerospace industry.Solve at present to the T connector dual-beam when the gusset bilateral symmetry weld the structural limitations problem and adopt single laser to penetrate when welding from backboard, the not slick and sly and indelible problem of root of weld pore of the transition of gusset and back plate connections toe of weld, improve welding efficiency simultaneously, reduce weld seam fit-up gap requirement.
To achieve these goals, the present invention has taked following technical scheme.This method is when welding, laser beam 7 is from the end face incident of base plate 2, electric arc 6 relative laser beam 7 paraxonics are arranged in the place ahead or the rear of laser beam 7, the composite heat power supply that laser beam 7 and electric arc 6 are formed acts on directly over the gusset 1, wherein laser beam 7, electric arc 6 and gusset 1 are arranged in the plane, finish penetration fustion welding from T connector base plate 2 sides.This method also can be added filler wire 10, and wherein welding wire 10 is arranged with respect to laser beam 7 in opposite directions with electric arc 6.
Described electric arc 6 is TIG electric arc or plasma arc.
Described laser beam 7 is CO2 laser, YAG laser or optical-fiber laser.
Advantage of the present invention is: adopt composite heat power supply to penetrate welding from the base plate side of T connector, realize a welding fabrication of T connector, be not subjected to the restriction of Workpiece structure and size, can realize three-dimensional welding.The second, because the interaction of laser and electric arc, welding process stability can obviously be improved, and the pore problem of aperture root can improve speed of welding simultaneously when having eliminated simple laser weld.The 3rd, because the heating region of electric arc is big, the molten bath broad has improved the toe of weld transition situation at T connector base plate and gusset place, has realized uniform rounding off.The 4th, can adopt filler wire for the joint of excesssive gap, improve the moulding of face of weld.
The laser-electric arc complex welding method of T connector, welding procedure is simple, and equipment cost is low, the welding efficiency height, can realize three-dimensional welding, the pore problem that the difficulty or ease when having solved laser weld simultaneously overcome obtains the welding point of junction toe of weld rounding off simultaneously.This T connector welding for strict special application field of appearance of weld and structure super large member has bigger economy and technical meaning.
Description of drawings
Fig. 1: adopt T connector cross section and the longitudinal section of single laser from the plate top surface welding
Fig. 2: the composite welding device schematic diagram of the specific embodiment of the invention
Fig. 3: the present invention adopts the embodiment schematic diagram of filler wire
Fig. 4: the welding effect that adopts the inventive method
Among the figure: 1, gusset, 2, base plate, 3, weld seam, 4, the welding torch nozzle, 5, tungsten electrode, 6, electric arc, 7, laser beam, 8, plasma, 9, wire feed chews, 10, welding wire.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment 1:
The embodiment of present embodiment is referring to accompanying drawing 2, and present embodiment adopts CO
2Laser-TIG arc composite heat source is realized welding from T connector base plate 2 end faces, wherein laser beam 7 is from the end face vertical incidence of base plate 2, TIG electric arc 6 relative laser beam 7 paraxonics are arranged in the rear of laser beam 7, electric arc 6 is 45 ° with the angle of plate top surface, the composite heat power supply that laser beam 7 and electric arc 6 are formed acts on directly over the gusset 1, finishes penetration fustion welding from T connector base plate 2 sides.During welding, laser beam 7, electric arc 6 and gusset 1 are arranged in the plane.
Wherein gusset 1 and base plate 2 are the thick corrosion resistant plate of 2mm, and the laser instrument of employing is a DC035 SlabCO2 laser instrument, the straight polarity direct current of TIG power supply.Welding condition is: laser power 2000W, and arc current 130A, speed of welding 2m/min, protection gas is the He gas of 25L/min.Fig. 4 is a welding effect of the present invention.The welding point moulding is good, and gusset 1 and base plate 2 junction toe of weld transition are even, and slyness is dissected weld seam and do not seen defectives such as pore, crackle, the pore problem when preferably resolving laser weld among Fig. 1.
Embodiment 2:
The method of present embodiment and embodiment 1 is basic identical, and obstructed part only is that this method in when welding, added filler wire 10, referring to accompanying drawing 3.Wherein welding wire 10 and electric arc 6 are arranged in the both sides of laser beam 7, and welding wire 10, laser beam 7, electric arc 6 and gusset 1 are arranged in one plane.
Claims (4)
1, a kind of laser-electric arc complex welding method of light sheet T type joint, it is characterized in that: during welding, laser beam (7) is from the end face incident of base plate (2), relative laser beam (7) paraxonic of electric arc (6) is arranged in the place ahead or the rear of laser beam (7), the composite heat power supply that laser beam (7) and electric arc (6) are formed acts on directly over the gusset (1), wherein laser beam (7), electric arc (6) and gusset (1) are arranged in the plane, finish penetration fustion welding from T connector base plate (2) side.
2, according to the laser-electric arc complex welding method of claim 1 described a kind of light sheet T type joint, it is characterized in that: add filler wire (10), filler wire (10) is arranged with respect to laser beam (7) in opposite directions with electric arc (6).
3, according to the laser-electric arc complex welding method of claim 1 or the described a kind of light sheet T type joint of claim 2, it is characterized in that: described electric arc (6) is TIG electric arc or plasma arc.
4, according to the laser-electric arc complex welding method of claim 1 or the described a kind of light sheet T type joint of claim 2, it is characterized in that: laser beam (7) is CO
2Laser, YAG laser or optical-fiber laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910077012 CN101474727A (en) | 2009-01-16 | 2009-01-16 | Laser-arc hybrid welding method of light sheet T type joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910077012 CN101474727A (en) | 2009-01-16 | 2009-01-16 | Laser-arc hybrid welding method of light sheet T type joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101474727A true CN101474727A (en) | 2009-07-08 |
Family
ID=40835548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910077012 Pending CN101474727A (en) | 2009-01-16 | 2009-01-16 | Laser-arc hybrid welding method of light sheet T type joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101474727A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126088A (en) * | 2011-01-13 | 2011-07-20 | 哈尔滨工业大学 | Double-sided laser arc composite welding method for thick plate T-joint |
| CN102161134A (en) * | 2009-12-01 | 2011-08-24 | 南车青岛四方机车车辆股份有限公司 | Hybrid welding method of variable-polarity square-wave tungsten electrode argon arc and laser |
| CN102892544A (en) * | 2010-05-07 | 2013-01-23 | 林肯环球股份有限公司 | Welding system and method using arc welding machines and laser beam source |
| CN102922137A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Laser no-filling penetration weld seal welding process for T-shaped welding head of steel plate |
| CN102922151A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Steel plate laser non-filling welding process for sealed gas tank |
| CN103331519A (en) * | 2013-06-20 | 2013-10-02 | 北京工业大学 | Method for processing initial and end positions of double-beam laser welding seam of T-shaped structure siding |
| US8729424B2 (en) | 2010-02-18 | 2014-05-20 | The Esab Group, Inc. | Hybrid welding with multiple heat sources |
| CN104772567A (en) * | 2015-04-23 | 2015-07-15 | 中国航空工业集团公司北京航空制造工程研究所 | Laser welding method capable of reducing defects of arc strike and arc suppression |
| US9095929B2 (en) | 2006-07-14 | 2015-08-04 | Lincoln Global, Inc. | Dual fillet welding methods and systems |
| CN108225120A (en) * | 2018-01-09 | 2018-06-29 | 北京航空航天大学 | Frame-covering structure missile wing |
| CN108453388A (en) * | 2018-04-26 | 2018-08-28 | 大连理工大学 | A kind of T junction component double excitation induction electric arc penetration welding method and welder |
| CN109202292A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨现代焊接技术有限公司 | Laser+plasma arc+TIG arc combines welding method |
| CN110000475A (en) * | 2019-04-08 | 2019-07-12 | 中车青岛四方机车车辆股份有限公司 | Combined Welding continuously welds method and device, welding finished product, car body |
| WO2020063366A1 (en) * | 2018-09-29 | 2020-04-02 | 沈阳富创精密设备有限公司 | Laser-plasma arc hybrid welding process for large aluminum alloy cavity |
| CN111360408A (en) * | 2020-03-18 | 2020-07-03 | 上海中船临港船舶装备有限公司 | H04MnNi2Ti steel sandwich structure laser GMAW composite welding method |
| CN114260572A (en) * | 2021-12-13 | 2022-04-01 | 上海第一机床厂有限公司 | Welding method for nuclear fuel transfer equipment box body |
| CN114286735A (en) * | 2019-08-20 | 2022-04-05 | 宝钢激光技术有限公司 | Method for producing welded T-beam or double T-beam profiles |
-
2009
- 2009-01-16 CN CN 200910077012 patent/CN101474727A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9095929B2 (en) | 2006-07-14 | 2015-08-04 | Lincoln Global, Inc. | Dual fillet welding methods and systems |
| CN102161134A (en) * | 2009-12-01 | 2011-08-24 | 南车青岛四方机车车辆股份有限公司 | Hybrid welding method of variable-polarity square-wave tungsten electrode argon arc and laser |
| US8729424B2 (en) | 2010-02-18 | 2014-05-20 | The Esab Group, Inc. | Hybrid welding with multiple heat sources |
| CN102892544A (en) * | 2010-05-07 | 2013-01-23 | 林肯环球股份有限公司 | Welding system and method using arc welding machines and laser beam source |
| CN102892544B (en) * | 2010-05-07 | 2017-06-06 | 林肯环球股份有限公司 | Use arc-welding machine and the welding system and method for laser beam sources |
| CN102126088A (en) * | 2011-01-13 | 2011-07-20 | 哈尔滨工业大学 | Double-sided laser arc composite welding method for thick plate T-joint |
| CN102922137A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Laser no-filling penetration weld seal welding process for T-shaped welding head of steel plate |
| CN102922151A (en) * | 2012-11-13 | 2013-02-13 | 常州太平洋电力设备(集团)有限公司 | Steel plate laser non-filling welding process for sealed gas tank |
| CN102922137B (en) * | 2012-11-13 | 2015-04-15 | 常州太平洋电力设备(集团)有限公司 | Laser no-filling penetration weld seal welding process for T-shaped welding head of steel plate |
| CN103331519A (en) * | 2013-06-20 | 2013-10-02 | 北京工业大学 | Method for processing initial and end positions of double-beam laser welding seam of T-shaped structure siding |
| CN104772567A (en) * | 2015-04-23 | 2015-07-15 | 中国航空工业集团公司北京航空制造工程研究所 | Laser welding method capable of reducing defects of arc strike and arc suppression |
| CN108225120A (en) * | 2018-01-09 | 2018-06-29 | 北京航空航天大学 | Frame-covering structure missile wing |
| CN108453388A (en) * | 2018-04-26 | 2018-08-28 | 大连理工大学 | A kind of T junction component double excitation induction electric arc penetration welding method and welder |
| WO2020063366A1 (en) * | 2018-09-29 | 2020-04-02 | 沈阳富创精密设备有限公司 | Laser-plasma arc hybrid welding process for large aluminum alloy cavity |
| CN109202292A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨现代焊接技术有限公司 | Laser+plasma arc+TIG arc combines welding method |
| CN110000475A (en) * | 2019-04-08 | 2019-07-12 | 中车青岛四方机车车辆股份有限公司 | Combined Welding continuously welds method and device, welding finished product, car body |
| WO2020206923A1 (en) * | 2019-04-08 | 2020-10-15 | 中车青岛四方机车车辆股份有限公司 | Hybrid-welding method and device for continuous welding, finished welded product, and vehicle body |
| US11931826B2 (en) | 2019-04-08 | 2024-03-19 | Crrc Qingdao Sifang Co., Ltd. | Continuous welding method and device for hybrid welding, welded finished product, train body |
| CN114286735A (en) * | 2019-08-20 | 2022-04-05 | 宝钢激光技术有限公司 | Method for producing welded T-beam or double T-beam profiles |
| CN111360408A (en) * | 2020-03-18 | 2020-07-03 | 上海中船临港船舶装备有限公司 | H04MnNi2Ti steel sandwich structure laser GMAW composite welding method |
| CN111360408B (en) * | 2020-03-18 | 2024-04-05 | 上海中船临港船舶装备有限公司 | Laser GMAW composite welding method for H04MnNi2Ti steel sandwich structure |
| CN114260572A (en) * | 2021-12-13 | 2022-04-01 | 上海第一机床厂有限公司 | Welding method for nuclear fuel transfer equipment box body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101474727A (en) | Laser-arc hybrid welding method of light sheet T type joint | |
| CN102126088B (en) | Double-sided laser arc composite welding method for thick plate T-joint | |
| CN101306492B (en) | Laser-double arc double sided compound welding method of T shaped joint | |
| Acherjee | Hybrid laser arc welding: State-of-art review | |
| CN101780591B (en) | Twin arc submerged arc welding method for thick plate box beam/pillar | |
| CN105127595B (en) | Thick plate laser-double-sided arc hybrid welding method | |
| CN105108341A (en) | Laser-MAG welding method for steel plate of medium thickness and superhigh strength | |
| CN103769746B (en) | A kind of impulse magnetic field auxiliary laser welding method and equipment | |
| CN101559510B (en) | Double-sided multi-electrode penetrable electric arc welding method | |
| CN103252557B (en) | Welding method achieving medium thick plate backing welding without back gouging | |
| CN103317219B (en) | Cut deal gap I type groove unclear welding procedure such as not | |
| CN102922103A (en) | Submerged arc welding method for K-shaped groove of 80mm extra-thick steel plate with excellent plate shape after welding | |
| CN103600177B (en) | A kind of single supply VPPA-GTAW bifurcation piercing by electric arc welding method | |
| CN103737162A (en) | Compound welding method | |
| CN105458510A (en) | Method for eliminating pores in magnesium alloy welding | |
| CN102091872A (en) | Laser offset welding method suitable for magnesium/steel and magnesium/titanium | |
| CN103659012B (en) | A kind of large slab efficient combination welding technique | |
| CN106670649A (en) | Wire filling laser welding method | |
| CN106141411A (en) | The electron beam welding tool of a kind of aircraft cylinder and wing and welding procedure | |
| CN103831541A (en) | Laser and MIG electric arc compound welding method for high-strength steel butt joints | |
| CN108941913A (en) | A kind of efficient laser-MAG compound welding method of slab marine high strength steel | |
| CN105171243A (en) | Laser-arc hybrid welding method of medium-thickness board corner joint | |
| CN101934432B (en) | Coaxial composite welding method of laser spot welding and resistance spot welding | |
| CN104985326A (en) | Bilateral laser-InFocus electric arc composite welding method for T-type joint | |
| CN203649660U (en) | Laser electromagnetic pulse composite welding equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090708 |