CN106826248A - A kind of metal foil wall pieces riveting changes the laser peening light weight method and device of welding structure - Google Patents
A kind of metal foil wall pieces riveting changes the laser peening light weight method and device of welding structure Download PDFInfo
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- CN106826248A CN106826248A CN201710255955.5A CN201710255955A CN106826248A CN 106826248 A CN106826248 A CN 106826248A CN 201710255955 A CN201710255955 A CN 201710255955A CN 106826248 A CN106826248 A CN 106826248A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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Abstract
The present invention discloses the laser peening light weight method that a kind of metal foil wall pieces riveting changes welding structure, including：Clamping weldment, and position while welding is scanned, generation laser treatment path；Laser peening treatment is carried out to the both side surface of the weld seam according to the laser treatment path.Wherein, when laser peening treatment is carried out to weld seam both side surface, impacted onto the surface of metal foil wall pieces by the laser of certain power and induce the shock wave of generation to carry out shot peening to face of weld, and then eliminate the residual tension of weld metal zone, increase welded seam area crystal grain refinement, dislocation density, improve weld strength, deformation to weldment simultaneously carries out local school shape, it is ensured that the dimensional accuracy of part.Therefore, the present invention can mitigate the weight of metal foil wall pieces in space flight device, while the weld seam in welding structure is optimized into treatment, improve welding quality.Invention additionally discloses the laser peening lightweight device that a kind of metal foil wall pieces riveting changes welding structure, its advantage is as described above.
Description
Technical field
The present invention relates to Treatment of Metal Surface and welding technology field, more particularly to a kind of metal foil wall pieces riveting changes welding structure
Laser peening light weight method.The invention further relates to the laser peening light weight makeup that a kind of metal foil wall pieces riveting changes welding structure
Put.
Background technology
With China's rapid development of economy, aerospace industry plays more and more important work in national product and life
With.In order to meet domestic growing shipping demand of passenger transport, the rocket phase such as ARJ21, C919, the fortune aircrafts such as 20 and Long March No. 5 numbers
After research and development and military service is completed, accordingly, Aero-Space manufacturing industry accounting in national product is also increasing.
The control of weight is cardinal task in Aero-Space device, be also influence aerospace vehicle delivery efficiency it is main because
Element.Improving the method for aerospace vehicle efficiency mainly has two kinds, and one is research and development high-power engine, and two is that aerospace vehicle is entered
Row loss of weight.Loss of weight can increase the voyage of military aircraft, improve the bullet-loading capacity of military secret, for civil aircraft, can improve
Handling capacity of passengers, cost-effective etc..There are two methods of material loss of weight and structure design loss of weight to the method for aerospace vehicle loss of weight.
Selection aspect, at present widely used light material, such as titanium alloy, high strength alumin ium alloy, composite.Tradition dress
The technological requirement of these advanced materials it has been difficult to meet with interconnection technique, solder technology is developed by original auxiliary manufacturing process
As the key technology in aircraft manufacturing.Also there is substantial amounts of riveted structure in current Aero-Space device, make riveting into weldering
Connecing can simplify structure design, effectively mitigate weight.As airbus A330/A340 fuselage wallboards are symmetrical using double laser beams
Welding, replaces original riveting sealing wallboard, loss of weight to reach 15%, reduces cost 15%, while improve the sealing of wallboard
Energy.
With the fast development of solder technology, welding structural element accounting in Aero-Space device is increasing, such as welds
Proportion is more than 50% in jet engine parts sum for structural member, and it is total that the workload of welding has accounted for engine manufacture
10% or so of man-hour.Although solder technology, particularly high energy beam current solder technology rises emphatically in Aero-Space device loss of weight
Act on, but still there are problems that welding deformation and weld strength, the presence of these problems is used to the normal of aerospace vehicle
Bring very big potential threat.
Therefore, how on the basis of the weight for mitigating metal foil wall pieces, the welded weld seam of metal foil wall pieces is eliminated
Deformation, improves weld strength, it is ensured that the dimensional accuracy of part, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide the laser peening light weight method that a kind of metal foil wall pieces riveting changes welding structure, Neng Goutong
The mode for crossing welding mitigates the weight of metal foil wall pieces, and eliminates weld metal zone residual tension, strengthens weld strength, it is ensured that zero
The dimensional accuracy of part.It is a further object of the present invention to provide the laser peening light weight makeup that a kind of metal foil wall pieces riveting changes welding structure
Put.
In order to solve the above technical problems, the present invention provides the laser peening lightweight that a kind of metal foil wall pieces riveting changes welding structure
Method, including：
Clamping weldment, and position while welding is scanned, generation laser treatment path；
Laser peening treatment is carried out to the both side surface of the weld seam according to the laser treatment path.
Preferably, when clamping weldment, the surface holding level of the weld seam is made.
Preferably, position while welding is scanned, is specifically included：
Weld seam position in space is scanned, and determines the shape and thickness of the weld seam.
Preferably, the specific bag of laser peening treatment is carried out to the both side surface of the weld seam according to the laser treatment path
Include：
The surface and bottom surface of the weld seam are swashed according to the laser treatment path respectively by two beam laser simultaneously
Light bead.
Preferably, while by two beam laser respectively to the surface and bottom surface of the weld seam according to the laser treatment path
Before carrying out laser peening treatment, also include：
Two beam laser are adjusted in the surface of the weld seam and the projected position of bottom surface, and makes the focus of two beam laser described
Projection on weld seam is identical.
Preferably, two beam laser of adjustment are after the projected position of the surface of the weld seam and bottom surface, and according to described
Before laser treatment path carries out laser peening treatment to the both side surface of the weld seam, also include：
Coated for preventing by laser burn and for improving induced with laser on the surface and/or bottom surface of the weld seam
The special pad pasting of stress wave pressure peak laser peening.
Preferably, the both side surface of the weld seam is carried out after laser peening treatment, is also included：
The deformation distribution situation of the weldment is detected, and judges whether deformation quantity meets requirement, if it is not, then according to institute
The deformation distribution situation for stating weldment adjusts the intensity of two beam laser, and continues to carry out laser to the both side surface of the weldment
Bead.
The present invention also provides the laser peening lightweight device that a kind of metal foil wall pieces riveting changes welding structure, including for clamping
The clamping robot of weldment, the scanning device for scanning the position while welding on the weldment and the scanning device letter
Number connect and for generating the main control computer in laser treatment path according to its scanning result, and be connected with the main control computer signal,
Laser for carrying out laser peening treatment to the both side surface of the weld seam according to the laser treatment path.
Preferably, also including being connected with the main control computer signal, for being sent to the laser laser is in the weldering
Sew on the speculum focused.
Preferably, also including being connected with the main control computer signal, being coated for preventing for the surface to the weldment
Coating robot by laser burn and for improving the special pad pasting of laser peening of the stress wave pressure peak of induced with laser.
Metal foil wall pieces riveting provided by the present invention changes the laser peening light weight method of welding structure, main to include two steps
Suddenly, respectively：Clamping weldment, and position while welding is scanned, generation laser treatment path；According to the laser treatment path to institute
The both side surface for stating weld seam carries out laser peening treatment.Wherein, in the first step, by weldment, that is, by after welding
The firm clamping of metal foil wall pieces, makes its weld seam high-visible, and two sides (surface and bottom surface) top of weld seam is had foot
Enough operating spaces.Then position while welding is scanned, after being welded due to metal foil wall pieces, the region of weld seam there may be stain etc.
Cause welding region unobvious, the concrete condition of weld seam can be specified after scanning weldment.Afterwards according to the concrete condition of weld seam
It is determined that the follow-up laser treatment path carried out when laser peening is processed, to improve laser peening treatment effeciency and treatment quality.So
Laser peening treatment can be carried out to the both side surface of weld seam according to the laser treatment path formulated afterwards, so as to pass through certain power
Laser impact to inducing on the surface of metal foil wall pieces the shock wave of generation shot peening is carried out to face of weld, and then
The residual tension of weld metal zone is eliminated, increases welded seam area crystal grain refinement, dislocation density, weld strength is improved, while butt welding
The deformation of fitting carries out local school shape, it is ensured that the dimensional accuracy of part.Therefore, metal foil wall pieces riveting provided by the present invention changes weldering
The laser peening light weight method of structure, compared to prior art, the connected mode of metal foil wall pieces is improved to welding by riveting,
Therefore, it is possible to effectively reduce the weight of metal foil wall pieces in space flight device, while entering to the weld seam in metal foil wall pieces welding structure
Row optimization processing, improves welding quality and weldment Forming Quality.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of specific embodiment provided by the present invention；
Fig. 2 is a kind of structure chart of specific embodiment provided by the present invention；
Fig. 3 is the clamp structure schematic diagram of the clamping robot shown in Fig. 2；
Fig. 4 is the handling situations schematic diagram of the coating robot shown in Fig. 2.
Wherein, in Fig. 2-Fig. 4：
Main control computer -1, weldment -2, weld seam -201, laser -3, scanning device -4 clamp robot -5, apply
Cover robot -6, speculum -7, special pad pasting -8 of laser peening, industrial computer -9, sucker -10.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of flow chart of specific embodiment provided by the present invention.
In a kind of specific embodiment provided by the present invention, metal foil wall pieces riveting changes the laser peening light weight of welding structure
Change method mainly includes two steps, respectively：Clamping weldment 2, and its position of weld seam 201 is scanned, regenerate laser treatment
Path；Laser peening treatment is carried out to the both side surface of the weld seam 201 according to the laser treatment path, is rushed with using laser
Hit the shock wave of induction impact is carried out to the weld seam 201 and forge.
Wherein, in the first step, by weldment 2, that is, by the firm clamping of the metal foil wall pieces after welding, weld it
Stitch 201 high-visible, and make two sides (surface and bottom surface) top of weld seam 201 that there is enough operating spaces.It is excellent herein
Selection of land, when weldment 2 is clamped, can make the surface holding level of weld seam 201.Certainly, weld seam 201 is generally present in weldment 2
Zone line, for shape and structure rule weldment 2 for, only need to make the plane holding level of weldment 2, you can make weldering
The surface of seam 201 keeps level.Then the position of weld seam 201 is scanned, after the welding of metal foil wall pieces, the region of weld seam 201
There may be stain etc. causes welding region unobvious, the concrete condition of weld seam 201 can be specified after scanning weldment 2, herein
Preferably, position of the weld seam 201 on weldment 2 can be scanned first, and then can determine the position in space of weld seam 201
Put, be so conducive to the laser 3 moved freely in space to position weld seam 201, while may further determine that weld seam 201
Distribution situation, such as the parameter such as the shape of weld seam 201, thickness.The concrete condition according to weld seam 201 determines subsequently to be swashed afterwards
Laser treatment path during light bead, to improve laser peening treatment effeciency and treatment quality.It is determined that laser treatment road
During footpath, the distribution situation of the weld seam 201 that will can be scanned is sent to main control computer 1, and default shortest path is based in main control computer 1
Etc. the laser treatment path that principle can be adapted to current weld seam 201 with planning department.
Afterwards in second step, you can the laser treatment path according to formulating carries out laser to the both side surface of weld seam 201
Bead, so as to impact induce the shock wave of generation to weld seam onto the surface of metal foil wall pieces by the laser of certain power
201 surfaces carry out shot peening, and then eliminate the residual tension in the area of weld seam 201, make the region crystal grain refinement of weld seam 201,
Dislocation density increases, and the intensity of weld seam 201 is improved, while the deformation to weldment 2 carries out local school shape, it is ensured that the size essence of part
Degree.
Specifically, when the both side surface to weld seam 201 carries out laser peening treatment, can be distinguished by two beam laser simultaneously
To the surface and bottom surface (when horizontally disposed, both side surface can divide into surface and bottom surface according to relative position relation) of weld seam 201
Laser peening treatment is carried out according to laser treatment path.Two sides so simultaneously to weld seam 201 carry out laser peening treatment, work
Make in hgher efficiency.It is of course also possible to use beam of laser carries out laser peening treatment to the surface and bottom surface of weld seam 201 successively,
Effect equally can use.
When carrying out bead by two beam laser simultaneously, it is necessary to ensure the concertedness of two beam laser, for
This, the present embodiment was additionally arranged focusing before bead is carried out to the surface and bottom surface of weld seam 201 simultaneously by two beam laser
Step.Specifically, two beam laser can respectively be adjusted in the surface of weld seam 201 and the projected position of bottom surface, the two beams laser is in weldering
On the surface and bottom surface of seam 201 projection is generally circular in cross section or the shape such as rectangle, when adjusting the position of two beam laser, only need to make weldering
The laser projection for stitching 201 surfaces planar overlaps with the laser projection of the bottom surface of weld seam 201, such as about two are distributed
(thickness of metal foil wall pieces causes to be distributed up and down) and the concentric circles of equal diameters, now the focus of two beam laser is to overlap, can
It is synchronous that bead is carried out to weld seam 201, so it is possible to prevente effectively from the surface of weld seam 201 and the uneven feelings of bottom side quality
Condition.
Further, starting before the both side surface to weld seam 201 carries out laser peening treatment, can also be in weld seam
201 surface or the bottom surface coating special pad pasting 8 of laser peening.Specifically, the special pad pasting 8 of the laser peening mainly has two works
With one is used to prevent the surface of weld seam 201 by laser burn, such as by changing the surface of weld seam 201 to the critical of laser reflection
Wavelength, increases the absorption to laser energy, so as to prevent the surface of weld seam 201 by laser burn；Secondly to improve induced with laser
The pulsewidth of pressure peak and broadening shock wave, such as hinder the expansion of plasma by layered material in uniform thickness, increases and swashs
The coupling of light energy and the interaction time of shock wave etc..
To sum up, bead is carried out to the surface and bottom surface of weld seam 201 by two beam laser simultaneously in the present embodiment, wherein
Upper Shu Jiguang mainly has two kinds of effects using there is coated laser shot peening strengthening, one is remaining drawing for eliminating the area of weld seam 201 should
Power, increases the region crystal grain refinement of weld seam 201, dislocation density, the intensity of weld seam 201 is improved, the second is the deformation to weldment 2 is entered
Row part school shape.Lower Shu Jiguang uses uncoated laser peening reinforcement technique, and its effect is that remaining drawing the in elimination weld seam 201 area should
Power, improves the intensity of weld seam 201.In this way, both smoothly the connection of the metal foil wall pieces in space flight device can be improved to by riveting
Welding, it can also be ensured that the welding quality of welding procedure.
In addition, the present embodiment is after the both side surface to weld seam 201 carries out laser peening treatment, also walked including detection
Suddenly.Specifically, the deformation distribution situation of detectable weldment 2, and it is whether full according to the pre-conditioned deformation quantity for judging weldment 2
Foot is required, if it is satisfied, then explanation laser shot-blasting process quality is higher, technique is completed, and if be unsatisfactory for, then explanation weldering
Stitch 201 mass still relatively low, it is necessary to continue regulation.Now two beam laser can be adjusted according to the deformation distribution situation of weldment 2
Intensity, such as can increase the power of wherein beam of laser, while by the power reduction of another beam of laser, and make deformation quantity compared with
Big distributed areas carry out bead using the laser of relatively high power, and the less distributed areas of deformation quantity then use smaller work(
The laser of rate carries out bead.
As shown in Fig. 2 Fig. 2 is a kind of structure chart of specific embodiment provided by the present invention.
The present embodiment also provides the laser peening lightweight device that a kind of metal foil wall pieces riveting changes welding structure, main to include folder
Hold robot 5, scanning device 4, main control computer 1 and laser 3.Wherein, clamping robot 5 is mainly used in clamping and fixed weldment
2, can typically make its holding level.Scanning device 4 is mainly used in scanning the distribution situation of weld seam 201 on weldment 2, such as be imaged
Instrument etc., would know that the information such as position, shape and the thickness of weld seam 201.Main control computer 1 is connected with the signal of scanning device 4, is mainly used in
Scanning result generation laser treatment path according to scanning device 4.Laser 3 is connected with the signal of main control computer 1, be mainly used according to
The laser treatment path that main control computer 1 is calculated carries out laser peening treatment to the both side surface of weld seam 201, meanwhile, main control computer 1 is also
The watt level of laser 3 can be controlled.
In view of when laser peening treatment is carried out to weld seam 201, can simultaneously pass through surface of the two beam laser to weld seam 201
Bead is carried out with bottom surface, this kind of situation needs to ensure the concertedness of two beam laser, therefore, the present embodiment is additionally arranged speculum
7.Speculum 7 can specifically be erected at the exit portal front end of laser 3, can be adjusted from speculum 7 by the change of the anglec of rotation
The laser beam for reflecting, in this way, can be adjusted to the corresponding feelings in focal position upper and lower two beams laser by repeatedly regulation
Condition.
Meanwhile, as it was previously stated, to prevent the surface of laser burns weld seam 201, while further improving the mass of weld seam 201, increasing
201 intensity of seam are welded with, absorbed layer 8 and restraint layer 9 can be coated on the surface of weld seam 201.Specifically, being additionally arranged painting in the present embodiment
Robot 6 is covered, as shown in figure 4, Fig. 4 is the handling situations schematic diagram of the coating robot 6 shown in Fig. 2.The coating robot 6
Main executing agency be mechanical arm, have hairbrush the end of its mechanical arm is settable, such that it is able to quickly complete weld seam 201
The application of the absorbed layer 8 and restraint layer 9 on surface.
In addition, to ensure that clamping robot 5 can stably clamp weldment 2, the present embodiment is at the end of clamping robot 5
End is additionally arranged sucker 10, as shown in figure 3, Fig. 3 is the clamp structure schematic diagram of the clamping robot 5 shown in Fig. 2, due to welding
Part 2 is metal foil wall pieces, and surface flatness is higher, therefore clamping robot 5 can securely adsorb weldment 2 by sucker 10.
Moreover, laser 3, scanning device 4, clamping robot 5 and coating robot 6 can by industrial computer 9 with
Main control computer 1 is communicated, so that main control computer 1 can send control signals to laser 3, scanning device 4, clamping robot 5
On self-corresponding industrial computer 9 each with coating robot 6, control performs corresponding operating.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. a kind of metal foil wall pieces riveting changes the laser peening light weight method of welding structure, it is characterised in that including：
Clamping weldment, and its position while welding is scanned, regeneration laser treatment path；
Laser peening treatment is carried out to the both side surface of the weld seam according to the laser treatment path, is lured with using laser-impact
The shock wave led carries out impact and forges to the weld seam.
2. metal foil wall pieces riveting according to claim 1 changes the laser peening light weight method of welding structure, it is characterised in that
During clamping weldment, make the surface holding level of the weld seam.
3. metal foil wall pieces riveting according to claim 2 changes the laser peening light weight method of welding structure, it is characterised in that
Scanning position while welding, specifically includes：
Weld seam position in space is scanned, and determines the shape and thickness of the weld seam.
4. metal foil wall pieces riveting according to claim 3 changes the laser peening light weight method of welding structure, it is characterised in that
Laser peening treatment is carried out to the both side surface of the weld seam according to the laser treatment path to specifically include：
Laser spray is carried out according to the laser treatment path to the surface and bottom surface of the weld seam respectively by two beam laser simultaneously
Ball treatment.
5. metal foil wall pieces riveting according to claim 4 changes the laser peening light weight method of welding structure, it is characterised in that
The surface and bottom surface of the weld seam are carried out at laser peening according to the laser treatment path respectively by two beam laser simultaneously
Before reason, also include：
Two beam laser are adjusted in the surface of the weld seam and the projected position of bottom surface, and makes the focus of two beam laser in the weld seam
On projection it is identical.
6. metal foil wall pieces riveting according to claim 5 changes the laser peening light weight method of welding structure, it is characterised in that
Two beam laser are adjusted after the projected position of the surface of the weld seam and bottom surface, and according to the laser treatment path to institute
Before stating the both side surface of weld seam and carrying out laser peening treatment, also include：
The stress for preventing by laser burn and for improving induced with laser is coated on the surface and/or bottom surface of the weld seam
The special pad pasting of wave pressure peak laser shot-peening.
7. metal foil wall pieces riveting according to claim 6 changes the laser peening light weight method of welding structure, it is characterised in that
The both side surface of the weld seam is carried out after laser peening treatment, also included：
The deformation distribution situation of the weldment is detected, and judges whether deformation quantity meets requirement, if it is not, then according to the weldering
The deformation distribution situation of fitting adjusts the intensity of two beam laser, and continues to carry out laser peening to the both side surface of the weldment
Treatment.
8. a kind of metal foil wall pieces riveting changes the laser peening lightweight device of welding structure, it is characterised in that including for clamping weldering
The clamping robot of fitting, the scanning device for scanning the position while welding on the weldment and the scanning device signal
Connect and for generating the main control computer in laser treatment path according to its scanning result, and be connected with the main control computer signal, used
In the laser for carrying out laser peening treatment to the both side surface of the weld seam according to the laser treatment path.
9. metal foil wall pieces riveting according to claim 8 changes the laser peening lightweight device of welding structure, it is characterised in that
Also include being connected with the main control computer signal, that the laser for sending the laser is focused on the weld seam is anti-
Penetrate mirror.
10. metal foil wall pieces riveting according to claim 9 changes the laser peening lightweight device of welding structure, and its feature exists
In, coated for preventing by laser burn also including being connected with the main control computer signal, for the surface to the weldment and
Coating robot for improving the special pad pasting of laser peening of the stress wave pressure peak of induced with laser.
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| CN109226983A (en) * | 2018-10-18 | 2019-01-18 | 扬州镭奔激光科技有限公司 | The laser impact intensified absorption protective layer coating unit of blade of aviation engine and method |
| CN110438332A (en) * | 2019-06-14 | 2019-11-12 | 广东镭奔激光科技有限公司 | High temperature alloy small size turbine disc mortise position laser shock peening method |
| CN115786685A (en) * | 2022-12-03 | 2023-03-14 | 北京翔博科技股份有限公司 | Stress relieving method based on annular beam laser ultrasonic enhancement |
| CN117066751A (en) * | 2023-10-18 | 2023-11-17 | 中国航空制造技术研究院 | Shot blasting forming method for welded wallboard |
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| CN115786685A (en) * | 2022-12-03 | 2023-03-14 | 北京翔博科技股份有限公司 | Stress relieving method based on annular beam laser ultrasonic enhancement |
| CN115786685B (en) * | 2022-12-03 | 2023-09-19 | 北京翔博科技股份有限公司 | Stress eliminating method based on annular beam laser ultrasonic enhancement |
| CN117066751A (en) * | 2023-10-18 | 2023-11-17 | 中国航空制造技术研究院 | Shot blasting forming method for welded wallboard |
| CN117066751B (en) * | 2023-10-18 | 2023-12-15 | 中国航空制造技术研究院 | Shot blasting forming method for welded wallboard |
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