CN105728944B - A kind of bilateral method for laser welding of powder metallurgy regulation and control - Google Patents
A kind of bilateral method for laser welding of powder metallurgy regulation and control Download PDFInfo
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- CN105728944B CN105728944B CN201610239651.5A CN201610239651A CN105728944B CN 105728944 B CN105728944 B CN 105728944B CN 201610239651 A CN201610239651 A CN 201610239651A CN 105728944 B CN105728944 B CN 105728944B
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- 238000003466 welding Methods 0.000 title claims abstract description 68
- 230000002146 bilateral effect Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 15
- 230000033228 biological regulation Effects 0.000 title abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 18
- 230000008021 deposition Effects 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 6
- 230000005284 excitation Effects 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000035515 penetration Effects 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 6
- 230000004224 protection Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001148 Al-Li alloy Inorganic materials 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- FCVHBUFELUXTLR-UHFFFAOYSA-N [Li].[AlH3] Chemical compound [Li].[AlH3] FCVHBUFELUXTLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000001989 lithium alloy Substances 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 230000008520 organization Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the parts
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
- B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- 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
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
A kind of bilateral method for laser welding of powder metallurgy regulation and control, it is related to a kind of double laser beam welding method, and abundant alloy regulation and control cannot be carried out to seam organization with welding wire element in solving the problems, such as T-type structure bilateral laser beam welding.The inventive method：First, in covering upper surface place-centric to be welded along welding direction machinery milling groove, Chemical cleaning is carried out to covering to go oxide film dissolving and processing spot；2nd, to pre-fill alloy powder in groove forming sedimentary：Laser melting coating head erect is positioned over the surface of groove, by the way of the coaxial feeding of laser beam and alloy powder, laser powder feeding being carried out in groove surfaces and increasing material to obtain sedimentary, the deposition materials that will be higher by skin-surface with grinding machine grind away makes deposition surface coplanar with skin-surface；3rd, double excitation filler wire welding is carried out to stringer and covering, Bilateral Symmetry weld seam is obtained.The present invention is for the welding of T-type structure double laser beam.
Description
Technical field
The present invention relates to a kind of double laser beam welding method, more particularly to a kind of bilateral laser welding of powder metallurgy regulation and control
Method, can apply to the welding process of stringer and covering in aircraft target ship manufacturing process.
Background technology
There is the T-type structure of substantial amounts of covering-length analysis in airframe wallboard, this T-type structure is mainly using riveting
Technology carries out assembly and connection.The beginning of the nineties in last century, Airbus GmbH took the lead in having carried out bilateral laser synchronization solder technology
Research, and successfully the T-type structure welded.Compared with conventional rivet connection technology, bilateral laser synchronization solder technology tool
There is production efficiency higher, particularly can significantly reduce fuselage weight, improve the fuel economy of aircraft.Current this leather
It is hardened that new technology has been successfully applied to the fuselage wall including Air Passenger company different types of machines including smallest A318 and largest A380
During structure is made.
In order to ensure that bilateral laser welded seam shapes and suppresses weld defect, bilateral laser synchronization solder technology uses bilateral
The mode of symmetrical wire feed is carried out, and the alloy regulating and controlling effect using welding wire improves seam organization, suppresses the shape of the defects such as hole, crackle
Into the mechanical property of raising bilateral laser welded seam.However, experiment finds, because the bilateral laser weld pools of T-type structure are present
Local eddy currents feature, and speed of welding higher makes the faster crystallization and freezing of molten pool metal, causes in welding wire alloying element very
It is difficult to be sufficiently mixed with original covering mother metal, i.e., it is boundary with covering upper surface, upper and lower sides Elemental redistribution is uneven in weld seam.As schemed
Shown in 1, although welding wire element can be sufficiently mixed in weld seam stringer side 3, it is difficult to be mixed into the region of weld seam covering side 4, this
Welding wire element will be caused to be suppressed the alloy regulating and controlling effect that weld seam covering side 4 is organized, micro-crack is easily brilliant in weld seam covering side 4
Intergranular Initiation And Propagation, ultimately results in the decline of bilateral laser welded seam overall mechanical properties.
For problem above, foreign countries have scholar to find, increase wire feed rate can promote to a certain extent welding wire element to
Weld seam covering side 4 extends, but acts on limited, and the stability of bilateral laser beam welding can be made using excessive wire feed rate
Into adverse effect, form weld defect and destroy appearance of weld.At present, the proposition of Patents is had no to solve problem above.
The content of the invention
The present invention in order in solving T-type structure bilateral laser beam welding welding wire element seam organization cannot be carried out fully
The problem of alloy regulation and control, and propose a kind of bilateral method for laser welding of powder metallurgy regulation and control.
A kind of bilateral method for laser welding of powder metallurgy regulation and control proposed by the present invention, the welding method is to aircraft wall
The welding of plate T-type structure, the T-type structure is welded by the stringer placed vertically with the covering of horizontal positioned, specific welding side
Method through the following steps that realize：
Step one, processing groove：In covering upper surface, place-centric to be welded is along welding direction machinery milling groove, groove
Cross section is circular arc, and the radius of curvature r of groove is equal to lower melt run radius of curvature R, groove depth capacity d1Covered less than weld seam
The maximum fusion penetration D, groove Breadth Maximum w in skin side1Less than weld seam maximum molten wide W；Covering is carried out Chemical cleaning to remove oxide film dissolving
With processing spot；
Step 2, to pre-fill alloy powder in groove forming sedimentary：Laser melting coating head erect is positioned over groove
Surface, by the way of the coaxial feeding of laser beam and alloy powder, carries out laser powder feeding increasing material heavy to obtain in groove surfaces
Lamination, the deposition materials that will be higher by skin-surface with grinding machine grind away makes deposition surface coplanar with skin-surface；
Step 3, double excitation filler wire welding is carried out to stringer and covering：Stringer is positioned over along the vertical center line of groove
In sedimentary, two welding wires are symmetrically placed in stringer both sides, and two laser beams are symmetrically placed in stringer both sides, two protection gas
Nozzle is symmetrically placed in stringer both sides, and the order of welding wire, laser beam and protection gas jets is to set gradually from front to back, using lazy
Property gas real-time guard is carried out to bilateral laser welded seam, carry out bilateral laser filling wire welding to stringer and covering, obtain bilateral pair
Claim weld seam.
The present invention has the advantages that compared with prior art：
First, because the present invention carries out increased groove before continuous welding step, increasing material by laser alloy powder will close
Bronze end is preset in and sedimentary is formed in groove, finally by bilateral laser filling wire welding by sedimentary filler wire in groove,
So that stringer and covering are fully fused and form overall bilateral laser welded seam, alloy regulation and control element can be abundant in weld seam covering side
Mixing, weld seam stringer side substantially eliminates with Elemental redistribution difference in covering side, realizes alloying element to the uniform of seam organization
Alloy regulates and controls, so as to improve the mechanical property of weld seam.
2nd, the groove structure in the method for the present invention is simple, it is easy to obtained by Milling Process；Laser alloy powder increases material
Technique controllable precise efficiency high, the sedimentary consistency zero defect high of acquisition；It is demonstrated experimentally that according to restrictive condition processing groove simultaneously
The deposition layer tissue for carrying out the increasing material acquisition of laser alloy powder using Optimizing Process Parameters will not be caused to T-type structure seam organization
Adverse effect, can further improve the mechanical property of weld seam on the basis of original weld seam.
3rd, the increasing timber-used alloy powder flexible ratio in the method for the present invention, it is convenient according to weld seam covering side tissue modulation
It is required that changing alloy powder component ratio, without special processing welding wire, reduces cost can be realized to weld seam covering side tissue
Specific regulation and control；It is demonstrated experimentally that hybrid alloys powder by laser gain material can uniform deposition in groove, sedimentary Elemental redistribution
Uniformly.
4th, the method for the present invention is applicable not only to the welding of T-type structure, is also applied for bridging arrangement, cross structure, T-shaped
The isostructural welding of structure.
Brief description of the drawings
Fig. 1 is covering-stringer T-type structure double laser beam weld seam schematic diagram；
Fig. 2 is the schematic diagram of preset circular groove；
Fig. 3 is that laser alloy powder increases material schematic diagram in groove 5；
Fig. 4 is the position view that stringer 1 is placed in sedimentary 6；
Fig. 5 is double laser beam filler wire welding schematic diagram.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1~Fig. 5, the welding method of present embodiment is to flying
The welding of machine wallboard T-type structure, the T-type structure is welded by the stringer 1 placed vertically with the covering 2 of horizontal positioned, specifically
Welding method through the following steps that realize：
Step one, processing groove 5：It is recessed in the upper surface of covering 2 place-centric to be welded along welding direction machinery milling groove 5
The cross section of groove 5 is circular arc, and the radius of curvature r of groove 5 is equal to lower melt run radius of curvature R, the depth capacity d of groove 51It is less than
The maximum fusion penetration D, the Breadth Maximum w of groove 5 in weld seam covering side 41Less than weld seam maximum molten wide W, covering 2 is carried out Chemical cleaning to go
Oxide film dissolving and processing spot；Selection proper milling cutter simultaneously processes groove 5 with milling machine；
Step 2, to pre-fill alloy powder in groove 5 forming sedimentary 6：Laser melting coating first 7 is vertically placed on groove
5 surface, using laser beam 8 it is coaxial with alloy powder 12 feeding by the way of, the surface of groove 5 carry out laser powder feeding increase material with
Obtain sedimentary 6, laser powder feeding increase material after, the deposition materials that will be higher by the surface of covering 2 with grinding machine grind away make deposition surface with
Skin-surface is coplanar；
Step 3, double excitation filler wire welding is carried out to stringer 1 and covering 2：By stringer 1 along groove 5 vertical center line N-N
It is positioned in sedimentary 6, two welding wires 9 is symmetrically placed in the both sides of stringer 1, and two laser beams 8 are symmetrically placed in 1 liang of stringer
Side, two protection gas jets 10 are symmetrically placed in the both sides of stringer 1, and the order of welding wire 9, laser beam 8 and protection gas jets 10 is served as reasons
A-P is set gradually, and real-time guard is carried out to bilateral laser welded seam using inert gas, and bilateral is carried out to stringer 1 and covering 2
Laser filling wire welding, obtains Bilateral Symmetry weld seam 11.
Specific embodiment two：With reference to Fig. 1 and Fig. 4 explanation present embodiments, present embodiment is that stringer 1 and covering 2 are thick
Degree is 2mm, and the maximum fusion penetration D control ranges of weld seam covering side 4 are 0.5mm~1.0mm, and weld seam maximum molten wide W control ranges are
2.5mm~3.0mm, groove depth capacity d1Meet relation with the maximum fusion penetration D of weld seam covering side 4：d1=0.8D, groove is maximum wide
Degree w1Meet relation with weld seam maximum molten wide W：w1=0.8W.Other steps are identical with specific embodiment one.
Specific embodiment three：Present embodiment is illustrated with reference to Fig. 3, Fig. 4 and Fig. 5, present embodiment is step 2 concave
The sectional area of groove 5 should be equal to the sectional area of sedimentary 6.Other steps are identical with specific embodiment one or two.
Specific embodiment four：Present embodiment is that alloy powder composition is consistent with wire composition in step 2, alloyed powder
The weight/mass percentage composition of each composition is 12% silicon, 0.2% iron, 87.8% aluminium in end.Other steps and specific embodiment three-phase
Together.
Specific embodiment five：Present embodiment is that alloy powder composition is different from wire composition in step 2, in welding wire
The weight/mass percentage composition of each composition is 12% silicon, 0.2% iron, 87.8% aluminium, the weight/mass percentage composition of each composition in alloy powder
It is 7% silicon, 2% bronze medal, 0.5 scandium, 90.5% aluminium, the alloy powder composition can refine the crystal grain of weld seam covering side 4, improve intergranular phase
Intergranular intensity is constituted and improved, suppresses fire check Initiation And Propagation.Other steps are identical with specific embodiment three.
Specific embodiment six：Present embodiment is that laser powder feeding increases material and uses technological parameter in step 2：Laser power
It is 500W, powder feeding rate is 13g/min, and laser scanning speed is 0.3m/min, sedimentary width w2Control range be 2.0mm~
2.5mm, sedimentary depth capacity d2Control range is 0.5mm~1.0mm.Other steps are identical with specific embodiment three.
Specific embodiment seven：Present embodiment is that the laser power of double laser beam in step 3 elects 3000W, double excitation as
The incident angle of beam elects 22 ° as, and speed of welding elects 10m/min as, and gage of wire is 1.2mm, and wire feed rate is 4.3m/min, is adopted
Ar gas shieldeds are used, throughput is 15L/min.Other steps are identical with specific embodiment three.
Specific embodiment eight：Present embodiment is illustrated with reference to Fig. 4, present embodiment is stringer 1 and illiteracy in step 3
The material of skin 2 is aluminium alloy, aluminium lithium alloy or titanium alloy.Other steps are identical with specific embodiment seven.
Specific embodiment nine：Present embodiment is that inert gas uses Ar or He in step 3.Other steps with it is specific
Implementation method eight is identical.
Specific embodiment ten：Present embodiment is illustrated with reference to Fig. 5, present embodiment is that welding wire 9 is selected in step 3
ER4043 or ER2319 welding wires.Other steps are identical with specific embodiment nine.
Claims (9)
1. the bilateral method for laser welding that a kind of powder metallurgy regulates and controls, the welding method is the weldering to aircraft target ship T-type structure
Connect, the T-type structure is welded by the stringer (1) placed vertically with the covering (2) of horizontal positioned, it is characterised in that：The weldering
Connect method through the following steps that realize：
Step one, processing groove (5)：In covering (2) upper surface place-centric to be welded along welding direction machinery milling groove (5),
The cross section of groove (5) is circular arc, and the radius of curvature r of groove (5) is equal to lower melt run radius of curvature R, and groove (5) is maximum deep
Degree d1Fusion penetration D, groove (5) Breadth Maximum w maximum less than weld seam covering side (4)1Less than weld seam maximum molten wide W, covering (2) is entered
Row Chemical cleaning with go oxide film dissolving and processing spot；
Step 2, to pre-fill alloy powder in groove (5) forming sedimentary (6)：Laser melting coating head (7) is vertically placed on recessed
The surface of groove (5), by the way of laser beam (8) feeding coaxial with alloy powder (12), laser is carried out on groove (5) surface
Powder feeding increases material to obtain sedimentary (6), and the deposition materials that will be higher by covering (2) surface with grinding machine grind away and make deposition surface and cover
Skin surface co-planar；
Step 3, double excitation filler wire welding is carried out to stringer (1) and covering (2)：By stringer (1) along groove (5) vertical center
Line (N-N) is positioned in sedimentary (6), and two welding wires (9) are symmetrically placed in stringer (1) both sides, and two laser beams (8) are symmetrical
Be positioned over stringer (1) both sides, two protections gas jets (10) are symmetrically placed in stringer (1) both sides, welding wire (9), laser beam (8) and
The order of protection gas jets (10) is protected in real time using inert gas to set gradually from front to back to bilateral laser welded seam
Shield, bilateral laser filling wire welding is carried out to stringer (1) and covering (2), obtains Bilateral Symmetry weld seam (11).
2. the bilateral method for laser welding that a kind of powder metallurgy according to claim 1 regulates and controls, it is characterised in that：The length
Purlin (1) and covering (2) thickness are 2mm, and weld seam covering side (4) maximum fusion penetration D control ranges are 0.5mm~1.0mm, and weld seam is most
Big molten wide W control ranges are 2.5mm~3.0mm, groove depth capacity d1Meet relation with weld seam covering side (4) maximum fusion penetration D：
d1=0.8D, groove Breadth Maximum w1Meet relation with weld seam maximum molten wide W：w1=0.8W.
3. the bilateral method for laser welding that a kind of powder metallurgy according to claim 1 and 2 regulates and controls, it is characterised in that：Institute
The sectional area for stating step 2 further groove (5) should be equal to sedimentary (6) sectional area.
4. the bilateral method for laser welding that a kind of powder metallurgy according to claim 3 regulates and controls, it is characterised in that：The step
Alloy powder composition is consistent with wire composition in rapid two, and the weight/mass percentage composition of each composition is 12% silicon, 0.2% in alloy powder
Iron, 87.8% aluminium.
5. the bilateral method for laser welding that a kind of powder metallurgy according to claim 3 regulates and controls, it is characterised in that：The step
Alloy powder composition is different from wire composition in rapid two, in welding wire the weight/mass percentage composition of each composition be 12% silicon, 0.2% iron,
87.8% aluminium, the weight/mass percentage composition of each composition is 7% silicon, 2% bronze medal, 0.5 scandium, 90.5% aluminium in alloy powder.
6. the bilateral method for laser welding that a kind of powder metallurgy according to claim 3 regulates and controls, it is characterised in that：The step
Laser powder feeding increasing material uses technological parameter in rapid two：Laser power is 500W, and powder feeding rate is 13g/min, laser scanning speed
It is 0.3m/min, sedimentary width w2Control range is 2.0mm~2.5mm, sedimentary depth capacity d2Control range is 0.5mm
~1.0mm.
7. the bilateral method for laser welding that a kind of powder metallurgy according to claim 3 regulates and controls, it is characterised in that：The step
The laser power of double laser beam elects 3000W as in rapid three, and the incident angle of double laser beam elects 22 ° as, and speed of welding elects 10m/ as
Min, gage of wire is 1.2mm, and wire feed rate is 4.3m/min, and using Ar gas shieldeds, throughput is 15L/min.
8. the bilateral method for laser welding that a kind of powder metallurgy according to claim 7 regulates and controls, it is characterised in that：The step
The material of stringer (1) and covering (2) in rapid three is aluminium alloy, aluminium lithium alloy or titanium alloy.
9. the bilateral method for laser welding that a kind of powder metallurgy according to claim 8 regulates and controls, it is characterised in that：The step
Welding wire (9) selects ER4043 or ER2319 welding wires in rapid three.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106334881B (en) * | 2016-10-18 | 2018-09-07 | 哈尔滨工业大学 | Welding wire for the welding of aircraft aluminium lithium alloy fuselage wallboard |
| CN107876985A (en) * | 2017-10-19 | 2018-04-06 | 南京航空航天大学 | A kind of increasing material welding method of big thickness frame clsss metal parts |
| CN108747022B (en) * | 2018-06-21 | 2020-08-21 | 哈尔滨工业大学（威海） | Laser powder filling swing welding method for new energy power battery cooling box |
| CN110202264B (en) * | 2019-06-17 | 2020-11-03 | 南京航空航天大学 | Precise regulation and control method for double-laser-beam bilateral synchronous welding microstructure of titanium alloy skin-stringer wallboard |
| CN110434457A (en) * | 2019-07-19 | 2019-11-12 | 中车青岛四方机车车辆股份有限公司 | Laser double-surface welder and its laser double-surface welding method |
| CN112719517B (en) * | 2020-12-16 | 2022-08-02 | 中车眉山车辆有限公司 | Fusion welding connection process for special-shaped welding seams of steel structure car body |
| CN113770534A (en) * | 2021-09-16 | 2021-12-10 | 上海杭和智能科技有限公司 | Double-laser-beam double-side laser-MIG (Metal inert gas) hybrid welding method and system |
| WO2023152014A1 (en) * | 2022-02-11 | 2023-08-17 | Trumpf Laser- Und Systemtechnik Gmbh | Laser deposition welding method for producing coating layers on opposing surfaces of a component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996022854A1 (en) * | 1995-01-23 | 1996-08-01 | Dresser-Rand Company | Energy beam joining process producing a dual weld/braze joint |
| DE19844035C1 (en) * | 1998-09-25 | 1999-11-25 | Daimler Chrysler Aerospace | Shell component for an aircraft, and method for its production |
| JP4219174B2 (en) * | 2003-01-07 | 2009-02-04 | 財団法人近畿高エネルギー加工技術研究所 | Laser welding method |
| US20080164301A1 (en) * | 2007-01-10 | 2008-07-10 | General Electric Company | High temperature laser welding |
| CN102126088B (en) * | 2011-01-13 | 2013-05-08 | 哈尔滨工业大学 | Double-sided laser arc composite welding method for thick plate T-joint |
| CN104985326A (en) * | 2015-07-27 | 2015-10-21 | 哈尔滨工业大学 | Bilateral laser-InFocus electric arc composite welding method for T-type joint |
| CN105382411B (en) * | 2015-12-28 | 2017-03-22 | 哈尔滨工业大学 | Bilateral laser scanning and welding method of T-shaped connector |
| CN105414762B (en) * | 2015-12-30 | 2017-10-03 | 哈尔滨工业大学 | A kind of laser connection method based on laser gain material manufacturing technology |
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2016
- 2016-04-18 CN CN201610239651.5A patent/CN105728944B/en active Active
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