CN106399898A - Aircraft damage metal micro-droplet jetting 3D printing in-situ rapid repairing method - Google Patents
Aircraft damage metal micro-droplet jetting 3D printing in-situ rapid repairing method Download PDFInfo
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- CN106399898A CN106399898A CN201610854253.4A CN201610854253A CN106399898A CN 106399898 A CN106399898 A CN 106399898A CN 201610854253 A CN201610854253 A CN 201610854253A CN 106399898 A CN106399898 A CN 106399898A
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- metal
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Classifications
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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
-
- 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
Abstract
The invention discloses an aircraft damage metal micro-droplet jetting 3D printing in-situ rapid repairing method which is used for solving the technical problem that existing aircraft damage repairing methods are poor in practicability. According to the technical scheme, a metal melt jets single uniform micron-grade metal droplets through a nozzle under the action of the internal pressure of the metal melt, the uniform metal micro-droplets are controlled to be directionally accumulated point by point and layer by layer according to the specified trajectory based on the dispersed accumulation principle, and then rapid repairing forming of damaged metal parts is completed. According to the aircraft damage metal micro-droplet jetting 3D printing in-situ rapid repairing method, large-size energy equipment and special raw materials are not needed; in-situ repairing of multi-material damaged parts including active metal can be achieved; repairing equipment is portable; the process is simple; the cost is low; in-situ flexible rapid repairing of aircraft damage can be completed; and the practicability is high.
Description
Technical field
The present invention relates to a kind of airborne vehicle damage rehabilitation method, damage metal droplet injection 3D particularly to a kind of airborne vehicle
Print in-situ rapid renovation method.
Background technology
Airborne vehicle refers to obtain with the relative motion (not being retroaction ground being produced by air) of air by fuselage
Obtain any machine of air force lift-off flight, mainly include dirigible, aircraft, aerodone, gyroplane, helicopter, flapping-wing aircraft, incline
Switch rotor machine etc..The application of airborne vehicle widely, militarily, can be used for weapon, antisubmarine, personnel carrier；On civilian, can
For shipping, passenger traffic, agricultural, meteorology, aerial reconnaissance etc..And airborne vehicle is during long service, its structural member would generally be sent out
The damage of the multi-forms such as raw corrosion, wear, especially under coastal area and Island high salt, high humidity environment, airborne vehicle
Easily occur salt erosion, fatigue crack, fretting wear etc. conventional damage and wound, the unconventional damage such as holes, when such situation
During generation, at short notice airborne vehicle is returned to the optimum state of executable task it can be ensured that the safety of tasks carrying
And reliability, it is rapidly and efficiently and to be suitable under condition of external field therefore to the basic demand of airframe part fast repair technique
Use.
Based on the re-manufacturing technology of increasing material manufacturing, such as laser melting coating, can add repair materials by localization on demand and realize damaging
The direct reparation of injury, the affected area integral cutting comparing routine is again " subtracting intensity " place of technique auxiliary such as to glued joint, to rivet
Reason mode, has that Repair strength is high, flexible high advantage, is that a kind of preferable parts damage fast repairing method.
Document " Blown powder deposition of 4047aluminum on 2024aluminum
substrates.Manufacturing Letters 7(2016):11-14. " discloses a kind of laser gain material that is based on and manufactures skill
2024 aluminium alloy injured part restorative procedures of art, the method is made using special 4047 Al alloy powders higher to laser absorption rate
For repairing raw material, first pass through 2024 aluminium alloys that 4047 Al alloy powders are delivered to area to be repaired by special powder feeding mechanism
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, it is possible to achieve the remelting metallurgical binding between repair materials and matrix material.However, being currently based on laser
The restorative procedure of increases material manufacturing technology is required to superpower laser and the support of large-scale high energy source device, takes up room larger,
Requirement to outfield applied environment is more harsh；On the other hand, the method needs using special metal dust as reparation former material
Material, therefore the dependence to supply is larger, in particular for conventional aluminum alloy materials in airborne vehicle, it is higher to laser reflectivity,
And chemical property is active, more difficult when being repaired to it using laser gain material manufacture, so skill is manufactured based on laser gain material
The restorative procedure of art has many limitation in the quick application repaired in airborne vehicle outfield.
Content of the invention
In order to overcome the shortcomings of existing airborne vehicle damage rehabilitation method poor practicability, the present invention provides a kind of airborne vehicle to damage
Metal droplet sprays 3D printing in-situ rapid renovation method.The method comprises the concrete steps that metal bath acts in its internal pressure
Under, single uniform micro-sized metal molten drop is ejected by nozzle, and is based on discrete dynamics models principle, control homogeneous metal micro- molten
Drip the pointwise according to intended trajectory, successively orient and pile up, and then complete the quick reparation molding of distressed metal part.This reparation side
Method need not large-scale energy device, need not special raw material, can achieve that many materials injured part original position including active metal is repaiied
Multiple, and prosthetic appliance is portable, operation is simple, with low cost, and the original position flexibility that can complete airborne vehicle damage is quickly repaired, practicality
By force.
The technical solution adopted for the present invention to solve the technical problems：A kind of airborne vehicle damages metal droplet injection 3D printing
In-situ rapid renovation method, is characterized in comprising the following steps：
Step one, pretreatment is carried out to the area to be repaired 20 of airborne vehicle using blasting craft or acid and alkali corrosion method, go
Oxide layer and impurity except surface.
Step 2, by vacuum cup 2 by metal droplet injection 3D printing in-situ rapid renovation device be absorbed and fixed at boat
Pocket injured part 1 surface, adjusts quick locking expansion link 13, vacuum cup quick locking universal joint 3 and expansion link quick locking
Universal joint 14 is 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 coordinate 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, by data processing, obtains deposition path control program and the droplet deposition of the micro- molten drop of metal
The location information of position.
Step 4, made by the coupling work of guide rail 15, servomotor 16, leading screw 17 and slide block 18 metal drop occur
The mobile surface to airborne vehicle injured part 1 area to be repaired 20 of device 8, completes the switching of station.
Step 5, motion mated, according to the droplet deposition location positioning of acquisition in step 3 by X-axis 10 and Y-axis 11
Information, nozzle 6 is focused to the deposition position of initial liquid drop, makes nozzle 6 apart from area to be repaired 20 table by Z axis 12 motion
Face 10-15mm.
Step 6, metal drop generator 8 and area to be repaired 20 are carried out by communication type parcel by flexible seal cover 7,
Again encapsulation process is carried out to the space of parcel by sealant tape 4.
Step 7, the basic material according to airborne vehicle injured part 1, select metal or alloy material as the former material repaired
Material is put in metal drop generator 8, and carries out encapsulation process to metal drop generator 8.
Step 8, pumping process is carried out to the sealing space completing in step 6 by air valve 5, will be complete for its internal gas
Evacuate, refill 99.999% high-purity argon gas it is ensured that the oxygen content of its internal work environment and moisture content are below
10PPM, forms the airtight hypoxia in local, a low water working environment between nozzle 6 and area to be repaired 20, prevents from repairing
During occur oxidative phenomena, destroy repair precision.
Step 9, the internal heat of opening metal molten drop generator 8, are controlled technological parameter, are sent out by metal drop
Raw device 8 need based jet goes out metal drop 21, according still further to the metal micro- molten drop deposition path control program obtaining in step 3, cooperation
The coordination coupling three-dimensional motion of X-axis 10, Y-axis 11 and Z axis 12, carries out pointwise, successively repairs molding, until repair terminating.
Described two-dimensional laser profile scanner 19 laser scanning straight length during scanning is more than this scanning always
The cross-sectional length of the area to be repaired 20 on direction.
Described flexible seal cover 7 does corresponding selection according to the actual size of area to be repaired 20 and adjusts, and if damages
Run through airborne vehicle injured part 1, then need to do same encapsulation process to the opposite side of airborne vehicle injured part 1 simultaneously.
Described metal drop generator 8 inside heating-up temperature needs to be determined according to actual repair material, on the one hand needs to protect
Raw material is completely melt by card, on the other hand still needs to ensure to realize the micro- domain weight and between matrix material in molten drop deposition process
Molten metallurgical binding.Additionally, the droplet size of metal drop generator spray 8 injection need to carry out nozzle chi according to actual repair needs
Very little selection and processing parameter matching regulation and control.
The invention has the beneficial effects as follows：The method comprises the concrete steps that metal bath under the effect of its internal pressure, by spray
Mouth ejects single uniform micro-sized metal molten drop, and is based on discrete dynamics models principle, controls the micro- molten drop of homogeneous metal according to finger
The pointwise of fixed track, successively orientation are piled up, and then complete the quick reparation molding of distressed metal part.This restorative procedure need not be big
Type energy device, need not special raw material, can achieve many materials injured part in-situ immobilization Bao Kuos active metal including, and reparation
Portable devices, operation is simple, with low cost, can complete the flexible quick reparation of original position of airborne vehicle damage, practical.
With reference to the accompanying drawings and detailed description the present invention is elaborated.
Brief description
Fig. 1 is that airborne vehicle of the present invention damages metal droplet injection 3D printing in-situ rapid renovation method schematic device.
Fig. 2 is that the airborne vehicle 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- airborne vehicle injured part；2- vacuum cup；3- vacuum cup quick locking universal joint；4- sealant tape；5-
Air valve；6- nozzle；7- flexible seal cover；8- metal drop generator；9- switching support；10-X axle；11-Y axle；12-Z axle；13-
Quick locking expansion link；14- expansion link quick locking universal joint；15- guide rail；16- servomotor；17- leading screw；18- slide block；
19- two-dimensional laser profile scanner；20- area to be repaired；21- metal drop.
Specific embodiment
Following examples are with reference to Fig. 1-2.
Embodiment 1：Class injury repairing is cheated in large transport airplane 7075 aluminum alloy junction component surface corrosion.
The present embodiment is in use, be subject to large transport airplane airborne vehicle first by blasting craft (or acid and alkali corrosion method)
Area to be repaired 20 etch pit damaging on part 1 carries out pretreatment, removes oxide layer and the impurity on its surface, by vacuum cup 2
Metal droplet injection 3D printing in-situ rapid renovation device is absorbed and fixed at airborne vehicle injured part 1 surface, quick by adjusting
Locking expansion link 13 and corresponding vacuum cup quick locking universal joint 3 and expansion link quick locking universal joint 14 are so that two dimension
Laser profile scanner 19 is located at the surface of area to be repaired 20, then adopts two-dimensional laser profile scanner 19 to coordinate X-axis
10 or the one-dimensional linear motion of Y-axis 11 obtain the three-D profile data of area to be repaired 20 etch pit, by data processing, obtain
The deposition path control program of the micro- molten drop of 7075 aluminium alloys, obtains the deposition position location information of original metal molten drop, so simultaneously
Leading screw 17 is controlled to carry movable slider 18 to do linear movement on guide rail 15, due to metal drop generator 8 by servomotor 16 afterwards
It is each attached on switching support 9 with two-dimensional laser profile scanner 19, and ensure both in guide rail 15 axis in installation process
Specific relative position relation had on direction, thus be easy to by guide rail 15, servomotor 16, leading screw 17 and slide block 18
Allotment of labor makes the mobile original position completing during scanning work of metal drop generator 8 to two-dimensional laser profile scanner 19, just
In the switching realizing two stations, by controlling X-axis 10 to mate motion with the coordination of Y-axis 11 so that nozzle 6 positioning focusing is extremely controlled
At the original metal molten drop deposition position of program setting processed, Z axis 12 motion is controlled to make nozzle 6 mobile rotten to area to be repaired 20
At the 10-15mm of pit surface, then 7075 aluminium alloy bars of market supply state are carried out suitable cutting process so as to energy
Enough put in metal drop generator 8, then the oxide layer to surface and impurity are processed, and put in metal drop generator 8
Carry out encapsulation process, using flexible seal cover 7 and sealant tape 4, metal drop generator 8 and complex surface 20 to be repaired are carried out office
Portion seals, and carries out pumping process to this sealing space first by air valve 5, and its internal gas is evacuated completely, then pass to
99.999% high-purity argon gas, the inside heating of opening metal molten drop generator 8, control heating-up temperature to reach 800 DEG C to 850
DEG C, carry out spraying drop using 400 μm of nozzle 6 of diameter, control technological parameter that metal drop 21 diameter ejecting is existed
500 ± 20 μm, mate with the coordination of Z axis 12 in conjunction with X-axis 10, Y-axis 11, the metal drop completing area to be repaired 20 etch pit is filled out
Fill in-situ immobilization molding.
Embodiment 2：SUAV 2024 aluminum alloy outer cover surface scratch crackle class injury repairing.
The present embodiment is essentially identical with the technical process of embodiment 1 in application, and difference is right mainly due to applying
As if SUAV, its small volume, therefore using vacuum cup 2, whole metal droplet cannot be sprayed 3D printing in situ quickly
Prosthetic device is absorbed and fixed at the surface of SUAV airborne vehicle injured part 1, now vacuum cup 2 can be replaced by support
Seat, then by the regulation of quick locking expansion link 13 so that whole prosthetic device is maked somebody a mere figurehead above SUAV, secondly exists
The raw material adopting in the present embodiment is 2024 aluminium alloys, therefore needs the heating-up temperature within molten drop generator is made with corresponding tune
Whole, for 2024 aluminium alloys, it usually needs control heating-up temperature to reach 750 DEG C to 800 DEG C, further, since the form damaged is
Surface scratch crackle class is damaged, and the characteristic size that such damages is generally less, therefore needs to swash using the higher two dimension of resolution
Light profile scanner 19, simultaneously need to carrying out jet deposition using smaller (200 μ m diameter) nozzle 6, controls technique ginseng
Count the liquid-drop diameter making to eject at 300 ± 10 μm, and then complete SUAV 2024 aluminum alloy outer cover surface scratch and split
Stricture of vagina class injury repairing.
Claims (4)
1. a kind of airborne vehicle damages metal droplet injection 3D printing in-situ rapid renovation method it is characterised in that including following walking
Suddenly：
Step one, pretreatment is carried out to the area to be repaired (20) of airborne vehicle using blasting craft or acid and alkali corrosion method, remove
The oxide layer on surface and impurity；
Step 2, by vacuum cup (2) by metal droplet injection 3D printing in-situ rapid renovation device be absorbed and fixed at aviation
Device injured part (1) surface, adjusts quick locking expansion link (13), vacuum cup quick locking universal joint (3) and expansion link quick
Locking universal joint (14) is 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) coordinate the one-dimensional linear motion of X-axis (10) or Y-axis (11), obtain to be repaired
The three-D profile data in multiple region (20), by data processing, obtains deposition path control program and the drop of the micro- molten drop of metal
The location information of deposition position；
Step 4, metal drop is made by the coupling work of guide rail (15), servomotor (16), leading screw (17) and slide block (18)
The mobile surface to airborne vehicle injured part (1) area to be repaired (20) of generator (8), completes the switching of station；
Step 5, motion mated, according to the droplet deposition location positioning of acquisition in step 3 by X-axis (10) and Y-axis (11)
Information, nozzle (6) is focused to the deposition position of initial liquid drop, makes nozzle (6) apart from area to be repaired by Z axis (12) motion
Domain (20) surface 10-15mm；
Step 6, metal drop generator (8) and area to be repaired (20) are carried out by communication type bag by flexible seal cover (7)
Wrap up in, then encapsulation process is carried out to the space of parcel by sealant tape (4)；
Step 7, the basic material according to airborne vehicle injured part (1), select metal or alloy material as the raw material repaired
Put in metal drop generator (8), and encapsulation process is carried out to metal drop generator (8)；
Step 8, pumping process is carried out to the sealing space completing in step 6 by air valve (5), its internal gas is taken out completely
Sky, refills 99.999% high-purity argon gas it is ensured that the oxygen content of its internal work environment and moisture content are below
10PPM, forms the airtight hypoxia in local, a low water working environment between nozzle (6) and area to be repaired (20), prevents
There is oxidative phenomena in repair process, destroy and repair precision；
Step 9, the internal heat of opening metal molten drop generator (8), are controlled technological parameter, are occurred by metal drop
Device (8) need based jet goes out metal drop (21), according still further to the metal micro- molten drop deposition path control program obtaining in step 3, joins
Close the coordination coupling three-dimensional motion of X-axis (10), Y-axis (11) and Z axis (12), carry out pointwise, successively repair molding, until repairing knot
Bundle.
2. airborne vehicle according to claim 1 damages metal droplet injection 3D printing in-situ rapid renovation method, its feature
It is：Described two-dimensional laser profile scanner (19) laser scanning straight length during scanning is more than this scanning side always
The cross-sectional length of area to be repaired (20) upwards.
3. airborne vehicle according to claim 1 damages metal droplet injection 3D printing in-situ rapid renovation method, its feature
It is：Described flexible seal cover (7) is done corresponding selection according to the actual size of area to be repaired (20) and is adjusted, and if damages
Run through airborne vehicle injured part (1), then need to do same encapsulation process to the opposite side of airborne vehicle injured part (1) simultaneously.
4. airborne vehicle according to claim 1 damages metal droplet injection 3D printing in-situ rapid renovation method, its feature
It is：The internal heating-up temperature of described metal drop generator (8) needs to be determined according to actual repair material, on the one hand needs to ensure
Raw material is completely melt, on the other hand still needs to ensure in molten drop deposition process, to realize the micro- domain remelting and between matrix material
Metallurgical binding；Additionally, the droplet size that metal drop generator spray (8) projects need to carry out nozzle chi according to actual repair needs
Very little selection and processing parameter matching regulation and control.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN106399898B CN106399898B (en) | 2018-08-17 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193161A (en) * | 2017-12-20 | 2018-06-22 | 北京化工大学 | A kind of device prepared suitable for the spraying of large-area planar metal coating |
| CN109334055A (en) * | 2018-10-30 | 2019-02-15 | 宁夏大学 | A kind of processing unit (plant) in place for composite product reparation |
| 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 |
| CN111090958A (en) * | 2019-12-30 | 2020-05-01 | 西北工业大学 | Electromagnetic wave time domain efficient numerical mixing algorithm based on sub-grid technology |
| CN111136274A (en) * | 2020-02-29 | 2020-05-12 | 西北工业大学 | Pressure difference driving type uniform metal droplet controllable spraying device facing space manufacturing |
| CN111621733A (en) * | 2020-05-15 | 2020-09-04 | 浙江博星工贸有限公司 | Working method of camshaft repairing system |
| CN111730284A (en) * | 2019-03-25 | 2020-10-02 | 通用汽车环球科技运作有限责任公司 | Repair system and method for repairing a substrate |
| 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 |
| CN114107870A (en) * | 2021-11-22 | 2022-03-01 | 成都飞机工业（集团）有限责任公司 | Flame aluminum spraying method for composite skin part |
| CN114160365A (en) * | 2021-11-22 | 2022-03-11 | 河南航天液压气动技术有限公司 | Glue filling device for electromagnetic valve |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193161A (en) * | 2017-12-20 | 2018-06-22 | 北京化工大学 | A kind of device prepared suitable for the spraying of large-area planar metal coating |
| 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 |
| CN109334055A (en) * | 2018-10-30 | 2019-02-15 | 宁夏大学 | A kind of processing unit (plant) in place for composite product reparation |
| CN111730284A (en) * | 2019-03-25 | 2020-10-02 | 通用汽车环球科技运作有限责任公司 | Repair system and method for 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 |
| CN111090958A (en) * | 2019-12-30 | 2020-05-01 | 西北工业大学 | Electromagnetic wave time domain efficient numerical mixing algorithm based on sub-grid technology |
| CN111136274A (en) * | 2020-02-29 | 2020-05-12 | 西北工业大学 | Pressure difference driving type uniform metal droplet controllable spraying device facing space manufacturing |
| CN111621733A (en) * | 2020-05-15 | 2020-09-04 | 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 |
| CN114107870A (en) * | 2021-11-22 | 2022-03-01 | 成都飞机工业（集团）有限责任公司 | Flame aluminum spraying method for composite skin part |
| CN114160365A (en) * | 2021-11-22 | 2022-03-11 | 河南航天液压气动技术有限公司 | Glue filling device for electromagnetic valve |
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