CN106399898B - Aircraft damages metal droplet and sprays 3D printing in-situ rapid renovation method - Google Patents
Aircraft damages metal droplet and sprays 3D printing in-situ rapid renovation method Download PDFInfo
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- CN106399898B CN106399898B CN201610854253.4A CN201610854253A CN106399898B CN 106399898 B CN106399898 B CN 106399898B CN 201610854253 A CN201610854253 A CN 201610854253A CN 106399898 B CN106399898 B CN 106399898B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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Abstract
The invention discloses a kind of aircraft damage metal droplets to spray 3D printing in-situ rapid renovation method, the technical issues of for solving existing aircraft damage rehabilitation method poor practicability.Technical solution be metal bath inside it pressure effect under, single uniform micro-sized metal molten drop is ejected by nozzle, and it is based on discrete dynamics models principle, point-by-point, successively orientation accumulation of the micro- molten drop of homogeneous metal according to intended trajectory are controlled, and then completes the quick reparation molding of distressed metal part.The restorative procedure is not necessarily to large-scale energy device, is not necessarily to special raw material, it can be achieved that more material injured part in-situ immobilizations including active metal, and prosthetic appliance is portable, process is simple, of low cost, the flexible quickly reparation in situ of aircraft damage can be completed, it is highly practical.
Description
Technical field
The present invention relates to a kind of aircraft damage rehabilitation method, more particularly to a kind of aircraft damage metal droplet sprays 3D
Print in-situ rapid renovation method.
Background technology
Aircraft refers to being obtained by relative motion (not being the reaction generated to ground by air) of fuselage and air
Any machine of air force lift-off flight is obtained, includes mainly dirigible, aircraft, aerodone, gyroplane, helicopter, flapping-wing aircraft, incline
Switch rotor machine etc..Being widely used for aircraft is general, militarily, can be used for weapon, antisubmarine, personnel carrier；It, can on civilian
For shipping, passenger traffic, agricultural, meteorology, aerial reconnaissance etc..And aircraft, during long service, structural member would generally be sent out
Various forms of damages such as raw corrosion, wear, especially coastal area and Island be with high salt, under high humidity environment, aircraft
Easily occur salt erosion, fatigue crack, fretting wear etc. routinely damage and wound, the unconventional damage such as holes, when such situation
When generation, aircraft is restored in a short time the optimum state of executable task, it can be ensured that the safety of task execution
And reliability, therefore be rapidly and efficiently and to be suitble under condition of external field to the basic demand of airframe part fast repair technique
It uses.
Re-manufacturing technology based on increasing material manufacturing, such as laser melting coating can add repair materials by on-demand localization and realize damage
The direct reparation of injury, compared to conventional affected area integral cutting again to be glued, rivet etc. at " subtracting intensity " of techniques auxiliary
Reason mode has Repair strength height, flexible high advantage, is a kind of ideal parts damage fast repairing method.
Document " Blown powder deposition of 4047aluminum on 2024aluminum
substrates.Manufacturing Letters 7(2016):11-14. " discloses a kind of based on laser gain material manufacture skill
2024 aluminium alloy injured part restorative procedures of art, this method use special 4047 Al alloy powder higher to laser absorption rate are made
To repair raw material, 4047 Al alloy powders are delivered to 2024 aluminium alloys of area to be repaired by special powder feeding mechanism first
Matrix surface is simultaneously coated with uniformly, then can form a molten bath in matrix surface by laser sintered, then constantly repeats powdering
With laser sintered step, the remelting metallurgical binding between repair materials and basis material may be implemented.However, currently based on laser
The restorative procedure of increases material manufacturing technology is required to the support of superpower laser and large-scale high energy source device, and occupied space is larger,
Requirement to outfield application environment is more harsh；On the other hand, this method is needed using special metal powder as reparation former material
Material, thus it is larger to the dependence of supply, it is higher to laser reflectivity in particular for common aluminum alloy materials in aircraft,
And chemical property is active, and it is more difficult when being repaired to it using laser gain material manufacture, so manufacturing skill based on laser gain material
The restorative procedure of art has many limitations in the application that aircraft outfield is quickly repaired.
Invention content
In order to overcome the shortcomings of that existing aircraft damage rehabilitation method poor practicability, the present invention provide a kind of aircraft damage
Metal droplet sprays 3D printing in-situ rapid renovation method.This method comprises the concrete steps that pressure acts on metal bath inside it
Under, single uniform micro-sized metal molten drop is ejected by nozzle, and be based on discrete dynamics models principle, control homogeneous metal is micro- molten
Point-by-point, the successively orientation accumulation according to intended trajectory are dripped, and then completes the quick reparation molding of distressed metal part.The reparation side
Method is not necessarily to large-scale energy device, without special raw material, it can be achieved that more material injured parts including active metal are repaiied in situ
It is multiple, and prosthetic appliance is portable, process is simple, of low cost, and the flexibility in situ that can complete aircraft damage is quickly repaired, practicability
By force.
The technical solution adopted by the present invention to solve the technical problems：A kind of aircraft damage metal droplet injection 3D printing
In-situ rapid renovation method, its main feature is that including the following steps：
Step 1: being pre-processed to the area to be repaired 20 of aircraft using blasting craft or acid and alkali corrosion method, go
Except the oxide layer and impurity on surface.
Step 2: metal droplet injection 3D printing in-situ rapid renovation device is absorbed and fixed at boat by vacuum cup 2
1 surface of pocket injured part adjusts quick locking telescopic rod 13, vacuum cup quick locking universal joint 3 and telescopic rod quick locking
Universal joint 14 so that two-dimensional laser profile scanner 19 is located at the surface of area to be repaired 20.
Step 3: two-dimensional laser profile scanner 19 coordinates the one-dimensional linear motion of X-axis 10 or Y-axis 11, obtain to be repaired
The three-D profile data in region 20 obtain the deposition path control program and droplet deposition of the micro- molten drop of metal by data processing
The location information of position.
Step 4: the matching work by guide rail 15, servo motor 16, leading screw 17 and sliding block 18 makes metal drop
Device 8 is moved to the surface of 1 area to be repaired 20 of aircraft injured part, completes the switching of station.
Step 5: by the matching campaign of X-axis 10 and Y-axis 11, positioned according to the droplet deposition position obtained in step 3
Information moves the deposition position of the focusing of nozzle 6 to initial liquid drop by Z axis 12 so that nozzle 6 is apart from 20 table of area to be repaired
Face 10-15mm.
Step 6: metal drop generator 8 and area to be repaired 20 are carried out by communication type package by flexible seal cover 7,
Processing is sealed to the space of package by sealant tape 4 again.
Step 7: according to the basic material of aircraft injured part 1, select metal or alloy material as the former material repaired
Material is put into metal drop generator 8, and is sealed processing to metal drop generator 8.
Step 8: pumping process is carried out to the sealing space completed in step 6 by air valve 5, its internal gas is complete
It evacuates, refills 99.999% high-purity argon gas, ensure that the oxygen content of its internal work environment and moisture content are below
10PPM forms a closed hypoxemia in part, low water working environment that is, between nozzle 6 and area to be repaired 20, prevents from repairing
Oxidative phenomena occurs in the process, destroys and repairs precision.
Step 9: the internal heat of opening metal molten drop generator 8, controls technological parameter, is sent out by metal drop
Raw 8 need based jet of device goes out metal drop 21, and program, cooperation are controlled according still further to the micro- molten drop deposition path of metal obtained in step 3
The coordination of X-axis 10, Y-axis 11 and Z axis 12 matches three-dimensional motion, carries out point-by-point, successively reparation molding, terminates until repairing.
The two-dimensional laser profile scanner 19 laser scanning straight length during scanning is always more than the scanning
The cross-sectional length of area to be repaired 20 on direction.
The flexible seal cover 7 does corresponding choose according to the actual size of area to be repaired 20 and adjusts, and if damages
Through aircraft injured part 1, then need to do same encapsulation process to the other side of aircraft injured part 1 simultaneously.
8 inside heating temperature of the metal drop generator needs to be determined according to actual repair material, on the one hand needs to protect
Raw material are completely melt by card, on the other hand still need to ensure to realize micro- domain weight between basis material in molten drop deposition process
Molten metallurgical binding.In addition, the droplet size that metal drop generator spray 8 is projected need to carry out nozzle ruler according to actual repair needs
Very little selection regulates and controls with processing parameter matching.
The beneficial effects of the invention are as follows：This method comprises the concrete steps that metal bath under pressure effect, passes through spray inside it
Mouth ejects single uniform micro-sized metal molten drop, and is based on discrete dynamics models principle, and the control micro- molten drop of homogeneous metal is according to finger
Point-by-point, the successively orientation accumulation of fixed track, and then complete the quick reparation molding of distressed metal part.The restorative procedure is without big
Type energy device is not necessarily to special raw material, it can be achieved that more material injured part in-situ immobilizations including active metal including, and reparation
Portable devices, process is simple, of low cost, can complete the flexible quickly reparation in situ of aircraft damage, highly practical.
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
Description of the drawings
Fig. 1 is aircraft damage metal droplet injection 3D printing in-situ rapid renovation method schematic device of the present invention.
Fig. 2 is that the aircraft damage metal droplet injection quick repair process of 3D printing in-situ rapid renovation method of the present invention shows
It is intended to.
In figure, 1- aircraft injured parts；2- vacuum cups；3- vacuum cup quick locking universal joints；4- sealant tapes；5-
Air valve；6- nozzles；7- flexible seal covers；8- metal drop generators；9- switching supports；10-X axis；11-Y axis；12-Z axis；13-
Quick locking telescopic rod；14- telescopic rod quick locking universal joints；15- guide rails；16- servo motors；17- leading screws；18- sliding blocks；
19- two-dimensional laser profile scanners；The areas to be repaired 20-；21- metal drops.
Specific implementation mode
Following embodiment referring to Fig.1-2.
Embodiment 1：Class injury repair is cheated in 7075 aluminum alloy junction component surface corrosion of large transport airplane.
The present embodiment in use, first use blasting craft (or acid and alkali corrosion method) to large transport airplane aircraft by
20 etch pit of area to be repaired on damage part 1 is pre-processed, and is removed the oxide layer and impurity on its surface, is passed through vacuum cup 2
Metal droplet injection 3D printing in-situ rapid renovation device is absorbed and fixed at 1 surface of aircraft injured part, it is quick by adjusting
Lock telescopic rod 13 and corresponding vacuum cup quick locking universal joint 3 and telescopic rod quick locking universal joint 14 so that two dimension
Laser profile scanner 19 is located at the surface of area to be repaired 20, then two-dimensional laser profile scanner 19 is used to coordinate X-axis
10 or Y-axis 11 one-dimensional linear motion obtain 20 etch pit of area to be repaired three-D profile data, pass through data processing, obtain
The deposition path of the micro- molten drop of 7075 aluminium alloys controls program, while obtaining the deposition position location information of original metal molten drop, so
Linear movement is done on guide rail 15 with movable slider 18 by the control leading screw 17 of servo motor 16 afterwards, due to metal drop generator 8
It is each attached on switching support 9 with two-dimensional laser profile scanner 19, and ensures the two in 15 axis of guide rail during the installation process
There is specific relative position relation on direction, therefore be easy to by guide rail 15, servo motor 16, leading screw 17 and sliding block 18
With work so that metal drop generator 8 is moved to original position when two-dimensional laser profile scanner 19 completes scanning work, just
In the switching for realizing two stations, movement is matched with the coordination of Y-axis 11 so that the positioning focusing of nozzle 6 is extremely controlled by controlling X-axis 10
At the original metal molten drop deposition position of program setting processed, control Z axis 12 moves so that nozzle 6 is moved to 20 corruption of area to be repaired
At the 10-15mm of etch pit surface, 7075 aluminium alloy bars of market supply state are then subjected to appropriate cutting process, it can
It is enough put into metal drop generator 8, then the oxide layer and impurity on surface is handled, be put into metal drop generator 8
It is sealed processing, using flexible seal cover 7 and sealant tape 4 by metal drop generator 8 and 20 carry out office of complex surface to be repaired
Portion seals, and carries out pumping process to this sealing space first by air valve 5, and its internal gas is evacuated completely, then passes to
99.999% high-purity argon gas, the inside heating of opening metal molten drop generator 8, control heating temperature reach 800 DEG C to 850
DEG C, injection drop is carried out using 400 μm of nozzle 6 of diameter, control technological parameter makes 21 diameter of the metal drop ejected exist
It 500 ± 20 μm, is matched with the coordination of Z axis 12 in conjunction with X-axis 10, Y-axis 11, the metal drop for completing 20 etch pit of area to be repaired is filled out
Fill in-situ immobilization molding.
Embodiment 2：2024 aluminum alloy outer cover surface scratch crackle class injury repair of small drone.
The present embodiment is essentially identical with the technical process of embodiment 1 in application, and difference is mainly due to application pair
Small drone, small volume are liked, therefore can not use vacuum cup 2 that the injection 3D printing of entire metal droplet is quick in situ
Prosthetic device is absorbed and fixed at the surface of small drone aircraft injured part 1, can vacuum cup 2 be changed to support at this time
Seat, then passes through the adjusting of quick locking telescopic rod 13 so that entire prosthetic device is maked somebody a mere figurehead above small drone, is secondly existed
The raw material used in the present embodiment need to make corresponding tune to the heating temperature inside molten drop generator for 2024 aluminium alloys
It is whole, for 2024 aluminium alloys, it usually needs control heating temperature reaches 750 DEG C to 800 DEG C, further, since the form of damage is
Surface scratch crackle class is damaged, and the characteristic size of such damage is usually smaller, therefore needs to swash using the higher two dimension of resolution ratio
Light profile scanner 19, while needing to carry out jet deposition, control technique ginseng using smaller (200 μ m diameter) nozzle 6
Number makes the liquid-drop diameter ejected at 300 ± 10 μm, and then completes 2024 aluminum alloy outer cover surface scratch of small drone and split
Line class injury repair.
Claims (4)
1. a kind of aircraft damage metal droplet sprays 3D printing in-situ rapid renovation method, it is characterised in that including following step
Suddenly：
Step 1: being pre-processed to the area to be repaired (20) of aircraft using blasting craft or acid and alkali corrosion method, remove
The oxide layer and impurity on surface；
Step 2: metal droplet injection 3D printing in-situ rapid renovation device is absorbed and fixed at aviation by vacuum cup (2)
It is quick to adjust quick locking telescopic rod (13), vacuum cup quick locking universal joint (3) and telescopic rod for device injured part (1) surface
Lock universal joint (14) so that two-dimensional laser profile scanner (19) is located at the surface of area to be repaired (20)；
Step 3: the one-dimensional linear motion of two-dimensional laser profile scanner (19) cooperation X-axis (10) or Y-axis (11), obtains to be repaired
The three-D profile data of multiple region (20) obtain the deposition path control program and drop of the micro- molten drop of metal by data processing
The location information of deposition position；
Step 4: the matching work by guide rail (15), servo motor (16), leading screw (17) and sliding block (18) makes metal drop
Generator (8) is moved to the surface of aircraft injured part (1) area to be repaired (20), completes the switching of station；
Step 5: by the matching campaign of X-axis (10) and Y-axis (11), positioned according to the droplet deposition position obtained in step 3
Information moves the deposition position of nozzle (6) focusing to initial liquid drop by Z axis (12) so that nozzle (6) is apart from area to be repaired
Domain (20) surface 10-15mm；
Step 6: metal drop generator (8) and area to be repaired (20) are carried out communication type packet by flexible seal cover (7)
It wraps up in, then processing is sealed to the space of package by sealant tape (4)；
Step 7: according to the basic material of aircraft injured part (1), select metal or alloy material as the raw material repaired
It is put into metal drop generator (8), and processing is sealed to metal drop generator (8)；
Step 8: carrying out pumping process to the sealing space completed in step 6 by air valve (5), its internal gas is taken out completely
Sky refills 99.999% high-purity argon gas, ensures that the oxygen content of its internal work environment and moisture content are below
10ppm forms the closed hypoxemia in a part, low water working environment that is, between nozzle (6) and area to be repaired (20), prevents
Oxidative phenomena occurs in repair process, destroys and repairs precision；
Step 9: the internal heat of opening metal molten drop generator (8), controls technological parameter, is occurred by metal drop
Device (8) need based jet goes out metal drop (21), controls program according still further to the micro- molten drop deposition path of metal obtained in step 3, matches
The coordination for closing X-axis (10), Y-axis (11) and Z axis (12) matches three-dimensional motion, point-by-point, successively reparation molding is carried out, until repairing knot
Beam.
2. aircraft damage metal droplet according to claim 1 sprays 3D printing in-situ rapid renovation method, feature
It is：Two-dimensional laser profile scanner (19) laser scanning straight length during scanning is always more than the scanning side
The cross-sectional length of upward area to be repaired (20).
3. aircraft damage metal droplet according to claim 1 sprays 3D printing in-situ rapid renovation method, feature
It is：The flexible seal cover (7) is done corresponding choose according to the actual size of area to be repaired (20) and is adjusted, and if damages
Through aircraft injured part (1), then need to do same encapsulation process to the other side of aircraft injured part (1) simultaneously.
4. aircraft damage metal droplet according to claim 1 sprays 3D printing in-situ rapid renovation method, feature
It is：The internal heating temperature of the metal drop generator (8) needs to be determined according to actual repair material, on the one hand needs to ensure
Raw material are completely melt, on the other hand still need to ensure to realize micro- domain remelting between basis material in molten drop deposition process
Metallurgical binding；In addition, the droplet size that metal drop generator (8) ejects need to carry out nozzle ruler according to actual repair needs
Very little selection regulates and controls with processing parameter matching.
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| CN201610854253.4A CN106399898B (en) | 2016-09-27 | 2016-09-27 | Aircraft damages metal droplet and sprays 3D printing in-situ rapid renovation method |
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| CN201610854253.4A CN106399898B (en) | 2016-09-27 | 2016-09-27 | Aircraft damages metal droplet and sprays 3D printing in-situ rapid renovation method |
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| CN108193161B (en) * | 2017-12-20 | 2019-12-13 | 北京化工大学 | Device suitable for spraying preparation of large-area planar metal coating |
| CN109334055B (en) * | 2018-10-30 | 2020-10-30 | 宁夏大学 | On-site processing device for repairing composite material workpiece |
| US20200307096A1 (en) * | 2019-03-25 | 2020-10-01 | GM Global Technology Operations LLC | Repair system and method of repairing a substrate |
| CN110977169A (en) * | 2019-12-05 | 2020-04-10 | 中国人民解放军陆军装甲兵学院 | Laser repairing method for aluminum alloy airplane skin pitting damage |
| CN111090958B (en) * | 2019-12-30 | 2021-11-30 | 西北工业大学 | Electromagnetic wave time domain efficient numerical mixing method based on sub-grid technology |
| CN111136274B (en) * | 2020-02-29 | 2021-01-05 | 西北工业大学 | Pressure difference driving type uniform metal droplet controllable spraying device facing space manufacturing |
| CN111621733B (en) * | 2020-05-15 | 2022-07-19 | 浙江博星工贸有限公司 | Working method of camshaft repairing system |
| CN112372232A (en) * | 2020-11-05 | 2021-02-19 | 哈尔滨理工大学 | Method and device for repairing die by array injection |
| CN112743105A (en) * | 2020-12-10 | 2021-05-04 | 西安铂力特增材技术股份有限公司 | Atmosphere protection device for active metal external field additive repair and repair method |
| CN114107870B (en) * | 2021-11-22 | 2023-01-10 | 成都飞机工业（集团）有限责任公司 | Flame aluminum spraying method for composite skin part |
| CN114160365B (en) * | 2021-11-22 | 2023-06-20 | 河南航天液压气动技术有限公司 | Solenoid valve glue filling device |
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| US6224180B1 (en) * | 1997-02-21 | 2001-05-01 | Gerald Pham-Van-Diep | High speed jet soldering system |
| CN103691951B (en) * | 2013-12-20 | 2015-06-17 | 西北工业大学 | Three-dimensional printing forming device and method based on metal microdroplet track direction control |
| CN103691950B (en) * | 2013-12-20 | 2015-11-18 | 西北工业大学 | The 3D Method of printing of small aluminium alloy wave guide member |
| CN105081325B (en) * | 2015-08-28 | 2021-09-24 | 许昌学院 | Metal droplet printing 3D part surface quality control device and control method thereof |
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