CN105951141A - Three-dimensional surface shot peening jet electrodeposition manufacturing method and device - Google Patents
Three-dimensional surface shot peening jet electrodeposition manufacturing method and device Download PDFInfo
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- CN105951141A CN105951141A CN201610522238.XA CN201610522238A CN105951141A CN 105951141 A CN105951141 A CN 105951141A CN 201610522238 A CN201610522238 A CN 201610522238A CN 105951141 A CN105951141 A CN 105951141A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/22—Electroplating combined with mechanical treatment during the deposition
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
- C25D5/611—Smooth layers
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/615—Microstructure of the layers, e.g. mixed structure
- C25D5/617—Crystalline layers
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/67—Electroplating to repair workpiece
Abstract
The invention provides a three-dimensional surface shot peening jet electrodeposition manufacturing method and device. According to the manufacturing method and device, a deposition solution and hard particles are mixed and deposit on a conductive substrate in a spraying manner, so that the rapid manufacturing technology of electrodeposition is realized, the growth rate of grains in the electrodeposition process is slowed down, the purpose of refining the grains is reached, and the quality of a deposition layer is dramatically improved; with combination of the shot peening strengthening technology and the electrodeposition technology, the defects of loose texture, pockmarks, pits and the like of the deposition layer caused by single electrodeposited cathode hydrogen evolution and impurity adhesion can be effectively overcome, and the hardness and the compactness of the deposition layer are improved; meanwhile, by introducing a five-axis linkage numerical control machining system, processing formation of a three-dimensional space can be realized, and the uniformity and the shape accuracy of the deposition layer are improved; and the technology can be widely applied to production of noble metal devices and parts in complex shapes and can also be used for surface rapid coat-plating, a strengthening technology and the like.
Description
Technical field
The present invention relates to rapid shaping manufacture field in manufacturing technology, especially a kind of three-dimensional surface peening jet electro-deposition manufacturer
Method and device.
Background technology
Electro-deposition techniques is as a kind of novel processing molding method, with features such as the technological parameter controllabilitys that it is good, fine
Manufacturing technology and technical field of surface achieve and develop widely and apply, such as micromotor, microsensor, miniature parts
Molding and reparation, the application of piece surface coating and the aspect such as corrosion-resistant achieves good effect.Therefore, electro-deposition techniques is
One of research field of 21 century most captivation.
Owing to conventional electrodeposition process in the bond strength of deposition velocity, the regioselectivity of deposition, sedimentary and matrix and is sunk
There is many deficiencies in the aspects such as the crystallite dimension of lamination itself, physical characteristic and surface topography so that the superiority of electro-deposition is difficult to
Manifest.Electro-deposition method is suitably modified and is blended with other processing method, just can be obtained good effect.As
Chinese patent " a kind of ultrasound wave electroforming apparatus ", the patent No.: propose in CN103276415A: use the ultrasound wave higher-order of oscillation to carry
The mass transfer speed of high electrodeposit reaction, reduces concentration polarization, and cleans electrode surface precipitation bubble hydrogen, improve deposition effect.
And for example, " the high-speed jet injection electroforming process of revolving parts and the device " of Publication No.: CN101994137A, carry
Go out: utilize high-speed jet to carry out selective scanning injection to revolving parts along certain track and be successively piled into required part, with
Time by hard particles or friction member, cast layer surface is rubbed, effectively remove the defects such as sedimentary surface buildup burr.Multiple
Close electro-deposition aspect, Publication No. CN103590080A " a kind of laser reinforcing jet-electrodeposited method quick shaping machining device and
Method ", it is provided that high energy density laser bundle and high speed electro-deposition solution are synchronized directive by the passivity anodes centre hole of tubulose cloudy
Surface, pole, it is achieved the combination of Laser Enhanced Electro-deposition Technology and electric depositing solution injection, reaches the highest deposition velocity and can be real
Existing regioselectivity deposition, can quickly produce the metal parts of complex-shaped compact structure.
In the deposition process that existing electro-deposition techniques is realized, or method is simple but DeGrain, or respond well but dress
Put the reasons such as complicated operability is low and significantly limit the extensive application of electro-deposition techniques.And the surface of sedimentary can be along with deposition
The prolongation of time makes deposition quality be deteriorated, and then affects compactness and the uniformity of material.
Summary of the invention
For Shortcomings in prior art, the invention provides a kind of three-dimensional surface peening jet electro-deposition manufacture method and device.
Being mixed mutually with hard particles by deposition liquid, can realize electro-deposition techniques quickly manufactures shaping, and the surface that can realize again shot-peening is strong
Change purpose, the sedimentation rate of electro-deposition is greatly improved, improves the quality of sedimentary.
The present invention realizes above-mentioned technical purpose by techniques below means.
A kind of three-dimensional surface peening jet electro-deposition manufacture method, it is characterised in that comprise the steps of
(1) first negative electrode electrically-conductive backing plate surface is ground, oil removing, pickling and washing, then fixed negative pole electrically-conductive backing plate, will
The both positive and negative polarity of power supply is connected with anode and negative electrode electrically-conductive backing plate respectively, power-on；
(2) hydraulic pump using regulating flow quantity is that acid deposition liquid accelerates, and will deposition liquid and the uniform micron order of granule size
Hard particles is sufficiently mixed, then the negative pressure produced with the deposition liquid flowed provides power for hard particles, makes hard particles be mixed into heavy
Hydrops, makes the hard particles of ejection have enough impact velocitys, and sprays formation jet from nozzle with deposition liquid formation jet,
Impacting on negative electrode electrically-conductive backing plate, the size of the impact velocity of described hard particles should meet: hard particles impact deposition surface
Active force is more than the shot-peening active force to workpiece in pneumatic stress peening process；
(3) deposition liquid electrolytic deposition on negative electrode electrically-conductive backing plate；The moment momentum of the deposition surface of hard particles impact simultaneously, makes to sink
The crystal grain queueing discipline of lamination forms subgrain, the tip portion of smooth sedimentary rat, remove in time cathode hydrogen bubble and
Impurity, suppression dross and the generation of pin hole pit；
(4) adjusted the space spray angle of nozzle by 5-shaft linkage numerical control system of processing, continuous deposition forms required three-dimensional
Spatial form；
(5) collect the deposition liquid not deposited and hard particles, and recycle.
Further, in described step (2), at described nozzle, deposit liquid jet velocity 5～10m/s.
A kind of three-dimensional surface peening jet electro-deposition manufactures device, it is characterised in that including: 5-shaft linkage numerical control system of processing,
Electro-deposition system, fluid circulation system, hydraulic system and hard particles blood circulation；
Described 5-shaft linkage numerical control system of processing includes 5-shaft linkage numerical control processing equipment hands and numerical control device, and described numerical control device is used
In the space angle and the motion path that control mechanical hand；
Described electro-deposition system includes power supply, negative electrode conducting base and anode, and the negative pole of described power supply and positive pole are led with negative electrode respectively
Electricity matrix and anode are connected with each other, and described anode is fixed on five-axle linkage mechanical hand and is positioned at above negative electrode conducting base；
Described fluid circulation system includes that reservoir, dislodger, filter, circulating pump, described dislodger are positioned at negative electrode conductive base
Being connected with reservoir below body and by pipeline, described circulating pump, filter are arranged on the pipeline between dislodger and reservoir
On；Reservoir is connected with anode by rubber hose；
Described hydraulic system is arranged between reservoir and rubber hose, including the defecator being sequentially connected with, hydraulic pump, throttling
Valve, Pressure gauge, and the overflow valve being located between choke valve and reservoir, by stainless between described hydraulic pump and defecator
Fastener for connection, described defecator is placed in reservoir；
Described hard particles blood circulation includes that collection funnel, withdrawer, bin, described collection funnel are placed in negative electrode conductive base
Below body, described withdrawer is connected between collection funnel and bin, and described bin is by pipeline and rubber hose or anode
Connection.
Further, described reservoir is additionally provided with agitator and heater；Described heater is with temperature sensor.
Further, described anode internal diameter 3～5mm.
Further, described power supply is adjustable pulsed power supply, frequency range 0.5～2MHz, crest voltage 2～15V, pulse width
30～500ns；Described hydraulic pump is variable pump, and more than operating pressure 10bar, metered flow is not less than 10L/min；Described stainless
Steel pipe and rubber hose internal diameter 15～25mm, and the two inner wall smooth.
Further, described hard particles diameter 500～800 μm, and to process through overpickling decontamination and baking.
Shot Peening Technology is reasonably combined by the present invention with electro-deposition techniques, be possible not only to overcome tradition electro-deposition cathode hydrogen evolution and
The defects such as the sedimentary quality that impurity adheres to produce is loose, pit and pit and significantly improve consistency and the uniformity of material, both
Can realize electro-deposition techniques quickly manufactures shaping, can realize again the surface peening purpose of shot-peening, the deposition of electro-deposition is greatly improved
Speed, improves the quality of sedimentary.And combine with digital-control processing system, three dimensions can be realized and shape, thus extensively
The general production being applied to modern complicated shape part is it can also be used to quickly coating and surface strengthening technology etc..
The technical advantage of the present invention and beneficial effect:
1) deposition utilizes the moment momentum of hard particles, repeat impact sedimentary surface, make sedimentary under impact stress effect,
Crystal grain queueing discipline, forms less subgrain, thus realizes the effect of shot peening strengthening, improves hardness and the compactness of sedimentary.
2) the hard particles uniform punching press to sedimentary surface, makes the tip portion of rat by the impact of more probabilities and more
Big pressure, so that sedimentary surface more smooth.
3) hard particles is to the instantaneous covering of cathode surface and shielding, it is possible to plays the Inhibition of surfactant additive, slows down
The crystal grain growth rate of electrodeposition process, reaches crystal grain refinement purpose.
4) hard particles rubbing action to cathode surface, it is possible to homogenization sedimentary organizational structure and the raising sedimentary sense of organization
Can, cathode hydrogen bubble and impurity, the generation of the suppression defect such as dross and pin hole pit can be removed again simultaneously in time, reach smooth heavy
The purpose of build-up surface.
5) combine with 5-shaft linkage numerical control system of processing, three-dimensional figuration manufacture can not only be realized, also can realize any song
The spraying in face and surface peening, work efficiency is high, technique simplifies.
Accompanying drawing explanation
Fig. 1 is the structural representation that shot blasting on surface jet electro-deposition of the present invention manufactures device.
Fig. 2 is the structural representation of a kind of embodiment of anode.
Fig. 3 is the structural representation of the another kind of embodiment of anode.
Description of reference numerals is as follows:
1. power supply, 2. negative electrode conducting base, 3. ammeter, 4. valve, 5. bin, 6. Pressure gauge, 7. choke valve, 8. overflow valve,
9. heater, 10. agitator, 11. defecators, 12. hydraulic pumps, 13. circulating pumps, 14. filters, 15. dislodgers, 16. collect
Funnel, 17. bracing frames, 18. 5-shaft linkage numerical control processing equipment handss, 19. withdrawers, 20. numerical control devices, 21. rubber hose, 22.
Reservoir, 23. titanium alloy insoluble anodes, 24. safety glass covers, 25. bifurcated pipes, 26. sedimentary.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is not limited to
This.
Three-dimensional surface peening jet electro-deposition manufacture method of the present invention, before processing, negative electrode electrically-conductive backing plate surface is ground,
Oil removing, pickling and washing.Fixed negative pole electrically-conductive backing plate, is connected with anode and negative electrode electrically-conductive backing plate respectively by the both positive and negative polarity of power supply,
Power-on, what the hydraulic pump of regulating flow quantity was lasting provides liquid mobilization dynamic for acid deposition liquid, and deposition liquid is in rubber hose
Interior flowing makes the bin of hard particles form negative pressure with the seam of rubber hose, and hard particles is strongly sucked, with deposition
Liquid is sufficiently mixed, and makes the hard particles of ejection have enough impact velocitys, and sprays shape from nozzle with deposition liquid formation jet
Becoming jet, impact on negative electrode electrically-conductive backing plate, the size of the impact velocity of described hard particles should meet: hard particles impact is heavy
The active force on long-pending surface is more than the shot-peening active force to workpiece in pneumatic stress peening process.
During deposition liquid ejection anode, obtain high speed and high pressure liquid stream due to reducing of anode export diameter, concrete, described nozzle
Place's deposition liquid jet velocity 5～10m/s.Owing to the electric action of anode makes deposition liquid be electrolysed, deposition liquid in metal sun from
Son obtains electron reduction on negative electrode electrically-conductive backing plate and becomes metallic atom, and deposits required part shape.Meanwhile, hard particles
Because relative mass own is relatively big, and there is bigger momentum, huge momentum when impacting negative electrode electrically-conductive backing plate, can be produced, described
The active force of hard particles impact deposition surface can exceed the shot-peening active force to workpiece in stress peening process, thus reaches punching
Hit the purpose of strengthening surface, it is achieved the composite deposition processing of shot-peening and electrochemistry.
The hard particles constant impingement sedimentary of high-speed motion removes the internal stress of deposition process, and compresses sedimentary and improve deposition
Intensity, hard particles not only facilitates removal buildup and projection with fluid flow continuous frictional surface, improves being uneven of surface
Whole degree, is also beneficial to discharge and bubbing, improves consistency and the fineness of material, and the most periodically pulsing power supply is made
With also contributing to the realization of shot-peening effect, the final deposition realized rapidly and efficiently.
To sum up, the present invention is by mixing with the jet deposition of high-speed jet mode by deposition liquid liquid stream with hard particles, wherein,
Described hard particles is the uniform micron particles of granule size, and described deposition liquid is the deposition liquid for electrodeposition technology.Deposition
Liquid sprays to cathode base in the way of jet and achieves the quick manufacturing purpose of jet-electrodeposited method, constitutes jet-electrodeposited method manufacture system
System；High speed liquid stream is that hard particles accelerates, and makes hard particles obtain the impulsive force bigger than pneumatic shot-peening, it is achieved the surface of shot-peening
Enhancement purpose.Both are combined while achieving fast deposition and strengthen sedimentary by the present invention, it is achieved shot peening strengthening and electrochemistry
The quick manufacture of composite deposition, processing technique is simplified, and improves deposition efficiency, it is achieved the electrochemical copolymerization deposition of high-quality and high-efficiency
Processing, quickly repairs surface defects of parts and strengthens surface property.
As shown in Figure 1, it is achieved the three-dimensional surface peening jet electro-deposition system of above-mentioned three-dimensional surface peening jet electro-deposition manufacture method
Manufacturing apparatus, including: 5-shaft linkage numerical control system of processing, electro-deposition system, fluid circulation system, hydraulic system and hard particles
Blood circulation.
5-shaft linkage numerical control system of processing includes 5-shaft linkage numerical control processing equipment hands and numerical control device；Described numerical control device is used for controlling
The space angle of mechanical hand processed and motion path.
Electro-deposition system includes power supply, negative electrode conducting base and anode, and described anode is titanium alloy insoluble anode.Power supply is just
Pole is connected with titanium alloy insoluble anode, and negative pole is connected with negative electrode electrically-conductive backing plate, and series current table between three is used for detecting electricity
Stream size.Described anode is fixed on five-axle linkage mechanical hand and is positioned at above negative electrode conducting base.Described negative electrode conducting base
It is fixed on bracing frame.
Described fluid circulation system includes that reservoir, dislodger, filter, circulating pump, described dislodger are positioned at negative electrode conductive base
Being connected with reservoir below body and by pipeline, described circulating pump, filter are arranged on the pipeline between dislodger and reservoir
On, the solution after described circulating pump will filter is transported in reservoir；Reservoir is connected with anode by rubber hose.
Described hydraulic system is arranged between reservoir and rubber hose, including the defecator being sequentially connected with, hydraulic pump, throttling
Valve, Pressure gauge, and the overflow valve being located between choke valve and reservoir, by stainless between described hydraulic pump and defecator
Fastener for connection, is connected by stainless steel tube or rubber hose between remaining device of hydraulic system, and described defecator is placed in reservoir
In, described hydraulic pump extracts the solution in defecator, and described choke valve, overflow valve and Pressure gauge are connected with hydraulic pressure delivery side of pump,
Regulation output flow size.
Hard particles blood circulation includes that collection funnel, withdrawer, bin, described bin are used for storing hard particles, logical
Piping connects with rubber hose or anode, and described collection funnel is placed in below negative electrode conducting base, to collect post-depositional hard
Granule, described withdrawer is connected between collection funnel and bin, for the hard particles in collection funnel is transported to storage
Device.
Three-dimensional surface peening jet electro-deposition of the present invention manufacture device:
(1) electrochemistry electro-deposition system and 5-shaft linkage numerical control system of processing are set up:
In electro-deposition system, the positive pole of power supply is connected with titanium alloy insoluble anode, as the anode of electro-deposition current loop；Power supply
Negative pole be connected with negative electrode conducting base, as the negative electrode in electro-deposition loop, then ammeter is series in circuit, detect electric current
Size.Titanium alloy insoluble anode is fixed on 5-shaft linkage numerical control processing equipment on hand, the input port of titanium alloy insoluble anode
It is connected with reservoir with by rubber hose.Negative electrode conducting base is positioned on bracing frame and positions clamping；Digital control mechanical arm and number
Control device is connected, and by the program setting in numerical control device, controls space angle and the motion path of digital control mechanical arm, with reality
The three dimensions of existing peening jet electro-deposition shapes.
(2) peening jet electro-deposition Machining System is set up:
Arranging fluid circulation system, hard particles blood circulation, hydraulic system is fluid circulation system, hard particles circulation
System provides power, it is achieved hard particles and the mixing depositing liquid, and obtains jet flow force.
During three-dimensional surface peening jet electric deposition device of the present invention work: hydraulic pump 12 passes through defecator through stainless steel tube
Deposition liquid in 11 extraction reservoirs 22, is throttled by choke valve 7 and after the overflow of overflow valve 8, after the pressure measurement of Pressure gauge 6
Entering rubber hose 21, due to deposition liquid flow at high speed, produce negative pressure at the mouth of pipe of bin 5, hard particles is sucked by high pressure
Rubber hose pipeline, can realize the flowing in pipeline of the mixed deposition liquid and stopping by the switch of valve 4；Work as deposition
Liquid stream, when titanium alloy insoluble anode 23, is sprayed by spout through the electrolysis of power supply 1, reduces on negative electrode conductive base 2 body
Go out metallic crystal, obtain sedimentary 26；The deposition liquid having neither part nor lot in deposition is collected in dislodger 15, after filter 14 filters
Backed within reservoir 22 by circulating pump 13, it is achieved again recycle.Hard particles after impact sedimentary is through propping up
Support 17 is converged collection by collection funnel 16, returns in bin 5 by withdrawer 19, it is achieved again with, whole mistake
The sustainable processing of journey, it is achieved high-speed and high-efficiency shapes.
It is preferred that the reservoir of described three-dimensional surface peening jet electro-deposition manufacture device is additionally provided with agitator and heater；Institute
State heater with temperature sensor, deposition liquid is sufficiently mixed and temperature plays regulation effect.Described power supply uses can pulse-taking
Rush power supply, frequency range 0.5～2MHz, crest voltage 2～15V, pulse width 30～500ns.Described hydraulic pump is variable pump,
More than operating pressure 10bar, metered flow is not less than 10L/min.Described anode diameter 3～5mm.
According to actual processing request, the regulation output voltage of the pulse power, pulse width, waveform and pulse frequency；Regulation throttling
Valve valve, controls the output flow of hydraulic pump；Regulation reservoir valve openings size, controls the content of hard particles in deposition liquid；
After stability of flow to be output, controlled the distance of mechanical hand and negative electrode conducting base by numerical control device, it is achieved optimal deposition effect.
The ejection at a high speed of the spout on titanium alloy insoluble anode of deposition liquid, obtains electronics on negative electrode electrically-conductive backing plate and occurs reduction anti-
Metal nano layer should be obtained.Owing to the electric current density in heart region in the jet is bigger, it is thus possible to obtain the deposition that locality is higher
Effect, by obtaining desired three dimensional shape to the cumulative accumulation of crystallizing field sedimentary.
To rust corrosion or the metal surface of oxidation, it is possible under the impact of high speed hard particles eliminate rust remove impurity and expose metal
Conductive layer, continues deposition coating at metal surface, strengthens the bond strength with matrix, simultaneously because the percussion of hard particles
Enhancing the mechanical performance of matrix, achieve shot peening strengthening while remove impurity coating, Simplified flowsheet improves work efficiency.
Five-axle linkage mechanical hand can be installed multiple nozzle simultaneously and realize composite deposition and rotation deposition, it is possible to configuration composite deposition
Liquid realizes polycrystalline common phase deposition, improves the performance of matrix.
Anode can use front mixing structure or rear hybrid combination；Two kinds of structures are the most essentially identical in use, but two kinds of knots
Structure respectively has superiority in different occasions.
Concrete, the anode of front mixing structure is as in figure 2 it is shown, direct by titanium alloy insoluble anode 23 and rubber hose 21
It is connected, outside titanium alloy insoluble anode, has a safety glass cover 24 enclosing protective effect to surround, relatively easy in structure, suitable
Together in the hard particles that proportion is relatively large.Owing to hard particles mixes relatively early with deposition liquid, both mixed phase contrasts are more uniform,
It is more conducive to the injection of fluid at anode nozzle.But the equipment using front mixing structure is the heaviest, it is adaptable to infrequently
Change the main equipment of work place.
The anode of rear hybrid combination is as it is shown on figure 3, be provided with bifurcated pipe 25, both materials on titanium alloy insoluble anode 23
Identical, use threaded and seal, outside titanium alloy insoluble anode 23, having a safety glass cover 24 enclosing protective effect to wrap
Enclose.Owing to hard particles and deposits liquid-phase mixing at instrument anode, the suction of hard particles typically uses negative-pressure type to suck,
Instrument anode, due to the unexpected suction of hard particles, easily produces abrasion to titanium alloy insoluble anode 23.Therefore, mix after employing
During the anode of formula structure, it is adaptable to the situation that the proportion of hard particles is the lightest, rear hybrid-type equipment is the lightest, suitable
Close in the mobile device often changing working space.
Realize peening jet electro-deposition detailed process as follows:
(1) the deposition liquid needed for preparation electro-deposition.Selecting main salt crystal, being dissolved in distilled water until reaching saturated shape
State, adds appropriate additive, buffer agent, activator and chelating agent etc., to improve processing effect and the electric conductivity of sedimentary.
(2) surface to negative electrode electrically-conductive backing plate 2 is ground, oil removing, pickling and washing cleaning process, with fixture by negative electrode
Electrically-conductive backing plate is accurately positioned clamping；Hard particles diameter 500～800 μm, but no matter select which kind of granule to ensure
This kind of granular size is close, and before use will be through overpickling decontamination and process to be bakeed.
(3) controlled height and the angle of digital control mechanical arm 18 by numerical control device 20, make the nozzle of titanium alloy insoluble anode
And the distance of sedimentary is maintained between 2～3mm；
(4) before deposition, turn on agitator 10, make the mixing of deposition liquid fully, heater 9, make temperature constant exist
40～50 DEG C；
(5) hydraulic pump 12 is started, regulation choke valve 7 and overflow valve 8, more than operating pressure 10bar of hydraulic pump, specified
Flow is more than 10L/min, the nozzle of titanium alloy insoluble anode 23 and bifurcated pipe diameter 3～5mm, it is ensured that hard particles has foot
Enough velocity shocks are to deposition region.
(6) power-on 1 and each valve start peening jet deposit manufacture, and during deposition, control valve 4 openings of sizes, makes
The jet velocity depositing liquid at nozzle reaches 5～10m/s, control in real time digital control mechanical arm 18 and sedimentary height, angle
And translational speed, it is achieved three dimensions forms；When implementing Coating and coating intensive treatment, the scanning speed of nozzle
It is 0.5～1m/s.
(7) ON cycle pump 13, makes deposition liquid recycle；Open withdrawer 19, make hard particles reuse, reach
Circulating to solid-liquid, the course of processing is persistently carried out.
Owing to deposition to ensure deposit the enough pressure of liquid and speed, therefore this device is selected the rustless steel of leading portion compression portion
Pipe and the rubber hose diameter 15～25mm of back segment transport portion, and ensure the two inner wall smooth.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, without departing substantially from this
In the case of the flesh and blood of invention, any conspicuously improved, replacement or modification that those skilled in the art can make are equal
Belong to protection scope of the present invention.
Claims (7)
1. a three-dimensional surface peening jet electro-deposition manufacture method, it is characterised in that comprise the steps of
(1) first negative electrode electrically-conductive backing plate surface is ground, oil removing, pickling and washing, then fixed negative pole electrically-conductive backing plate, will
The both positive and negative polarity of power supply is connected with anode and negative electrode electrically-conductive backing plate respectively, power-on；
(2) hydraulic pump using regulating flow quantity is that acid deposition liquid accelerates, and will deposition liquid and the uniform micron order of granule size
Hard particles is sufficiently mixed, then the negative pressure produced with the deposition liquid flowed provides power for hard particles, makes hard particles be mixed into heavy
Hydrops, makes the hard particles of ejection have enough impact velocitys, and sprays formation jet from nozzle with deposition liquid formation jet,
Impacting on negative electrode electrically-conductive backing plate, the size of the impact velocity of described hard particles should meet: hard particles impact deposition surface
Active force is more than the shot-peening active force to workpiece in pneumatic stress peening process；
(3) deposition liquid electrolytic deposition on negative electrode electrically-conductive backing plate；The moment momentum of the deposition surface of hard particles impact simultaneously, makes to sink
The crystal grain queueing discipline of lamination forms subgrain, the tip portion of smooth sedimentary rat, remove in time cathode hydrogen bubble and
Impurity, suppression dross and the generation of pin hole pit；
(4) adjusted the space spray angle of nozzle by 5-shaft linkage numerical control system of processing, continuous deposition forms required three-dimensional
Spatial form；
(5) collect the deposition liquid not deposited and hard particles, and recycle.
Manufacture method the most according to claim 1, it is characterised in that in described step (2), deposits at described nozzle
Liquid jet velocity 5～10m/s.
3. a three-dimensional surface peening jet electro-deposition manufactures device, it is characterised in that including: 5-shaft linkage numerical control system of processing,
Electro-deposition system, fluid circulation system, hydraulic system and hard particles blood circulation,
Described 5-shaft linkage numerical control system of processing includes 5-shaft linkage numerical control processing equipment hands and numerical control device, and described numerical control device is used
In the space angle and the motion path that control mechanical hand；
Described electro-deposition system includes power supply, negative electrode conducting base and anode, and the negative pole of described power supply and positive pole are led with negative electrode respectively
Electricity matrix and anode are connected with each other, and described anode is fixed on five-axle linkage mechanical hand and is positioned at above negative electrode conducting base；
Described fluid circulation system includes that reservoir, dislodger, filter, circulating pump, described dislodger are positioned at negative electrode conductive base
Being connected with reservoir below body and by pipeline, described circulating pump, filter are arranged on the pipeline between dislodger and reservoir
On；Reservoir is connected with anode by rubber hose；
Described hydraulic system is arranged between reservoir and rubber hose, including the defecator being sequentially connected with, hydraulic pump, throttling
Valve, Pressure gauge, and the overflow valve being located between choke valve and reservoir, by stainless between described hydraulic pump and defecator
Fastener for connection；Described defecator is placed in reservoir；
Described hard particles blood circulation includes that collection funnel, withdrawer, bin, described collection funnel are placed in negative electrode conductive base
Below body, described withdrawer is connected between collection funnel and bin, and described bin is by pipeline and rubber hose or anode
Connection.
Peening jet electro-deposition the most according to claim 3 manufactures device, it is characterised in that be additionally provided with in described reservoir
Agitator and heater；Described heater is with temperature sensor.
Peening jet electro-deposition the most according to claim 3 manufactures device, it is characterised in that described anode internal diameter 3～5mm.
Peening jet electro-deposition the most according to claim 3 manufactures device, it is characterised in that described power supply is adjustable pulse
Power supply, frequency range 0.5～2MHz, crest voltage 2～15V, pulse width 30～500ns；Described hydraulic pump is variable pump,
More than operating pressure 10bar, metered flow is not less than 10L/min；Described stainless steel tube and rubber hose internal diameter 15～25mm,
And the two inner wall smooth.
Peening jet electro-deposition the most according to claim 3 manufactures device, it is characterised in that described hard particles diameter
500～800 μm, and to process through overpickling decontamination and baking.
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| CN201610522238.XA CN105951141A (en) | 2016-07-04 | 2016-07-04 | Three-dimensional surface shot peening jet electrodeposition manufacturing method and device |
| PCT/CN2016/089856 WO2018006434A1 (en) | 2016-07-04 | 2016-07-13 | Shot blasting and electrodeposition manufacturing method and apparatus for three-dimensional surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522238.XA CN105951141A (en) | 2016-07-04 | 2016-07-04 | Three-dimensional surface shot peening jet electrodeposition manufacturing method and device |
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| WO (1) | WO2018006434A1 (en) |
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