CN110144453A - A kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type and method - Google Patents
A kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type and method Download PDFInfo
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- CN110144453A CN110144453A CN201910347497.7A CN201910347497A CN110144453A CN 110144453 A CN110144453 A CN 110144453A CN 201910347497 A CN201910347497 A CN 201910347497A CN 110144453 A CN110144453 A CN 110144453A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
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Abstract
The present invention discloses a kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type and method, horizontal connecting rod two end is respectively fixedly connected with a first bevel gear, two vertical screw rod lower sections are respectively fixedly connected with the second bevel gear being meshed with corresponding first bevel gear, connecting rod one end connects motor, a horizontal cover board is connected between two upper end of slide block, lower end per each and every one sliding block is connected through a screw thread a corresponding screw rod, workplace vertical is placed on the first fuel tank inner bottom surface, cylinder is in the surface of workpiece, the surface of cylinder is equipped with oil cylinder, upper piston is equipped in cylinder cavity, lower piston is equipped in cylinder inner cavity, piston rod is fixedly connected between upper piston and lower piston, cylinder upper end and the side wall of lower end are respectively provided with an oilhole, two oilholes all connect reversal valve；Constantly changed by the reciprocating motion of piston and seal liquid volume in miniature taper hole, form cavitation phenomenon, shot-peening is carried out to the inner surface of taper hole, better surface quality can be obtained.
Description
Technical field
The invention belongs to fluid cavitation manufacture field, it is related to a kind of cavitation and occurs and processing method, be primarily adapted for use in cylinder
The shot peening strengthening of the miniature taper hole inner surface of type workpiece.
Background technique
The direction of a large amount of equipments and components towards miniaturization, micromation and lightness is developed, so that the processing of components
Size is smaller and smaller.Wherein tapering passage meets certain Functional Requirement on some components and is widely used, device to hole
The surface quality in road has higher requirement, such as the fluid conveying titanium alloy pipeline and important feature part of aircraft, these titaniums close
Golden pipeline mainly realizes airtight connection by way of taper hole and cone match, and this requires taper holes not only to have high shape essence
Degree, but also to have good surface quality just and can fully ensure that the high reliability of connection.
Current the most widely used taper hole reinforcement process is heat treatment and mechanic shot peening.Heat treatment method efficiency compares
Low, the surface hardness handled through it has certain limitation.Mechanic shot peening is to utilize the materials such as iron, ceramics, glass, high-speed steel
Manufactured bullet makes its skin-material that certain plastic deformation, Surface sheet occur by continual high-speed impact hole inner wall
The dislocation density of material increases, and crystal grain is refined, forms certain thickness residual compressive stress layer, effectively improve its fatigue strength.
But also acutely increased therewith through mechanic shot peening treated material surface roughness value, it is difficult to reach Eligibility requirements.
Summary of the invention
In order to overcome the problems, such as that current taper hole reinforcement process exists, the present invention provides a kind of miniature taper hole of hydraulic drive type
Inner surface cavitation peening system and its cavitation ball blasting method, shot-peening is high-efficient, high-quality, effectively improves the fatigue of taper hole inner surface
Intensity.
A kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type of the present invention the technical solution adopted is that: including work
Make platform, be fixedly connected with two trihedrals being arranged symmetrically Face to face on workbench, each trihedral by two vertical planes and
One horizontal plane is constituted, and one of vertical plane is fixedly connected with workbench, and horizontal connecting rod two end respectively passes through a first axle
It holds and is supported on another vertical plane of a trihedral, the both ends of connecting rod are respectively fixedly connected with a first bevel gear, Mei Gesan
The horizontal plane of face body respectively passes through a second bearing and connects a vertical screw rod lower section, the also each fixation in the lower end of each screw rod
A second bevel gear is connected, each second bevel gear is meshed with a corresponding first bevel gear, and connecting rod one end also passes through
Shaft coupling is connected to motor；The two vertical guide rails being arranged symmetrically Face to face are fixedly connected on workbench, each guide rail is logical
Sliding slot connection sliding block is crossed, connects a horizontal cover board between two upper end of slide block, the lower end per each and every one sliding block passes through screw thread
Connect a corresponding screw rod；Fixed the first fuel tank being located at immediately below cover board on workbench, the workpiece for being provided with miniature taper hole are perpendicular
It is directly placed on the first fuel tank inner bottom surface, cylinder is vertically disposed to the surface of workpiece and is fixedly connected on the lower section of cover board, gas
The surface of cylinder is equipped with the oil cylinder being fixedly connected on above cover board, and upper piston is equipped in the inner cavity of oil cylinder, is set in the inner cavity of cylinder
There is lower piston, vertical piston rod is fixedly connected between upper piston and lower piston；Cylinder upper end and the side wall of lower end are respectively provided with one
A oilhole, the oilhole of top is in the top of upper piston, and in the lower section of upper piston, two oilholes are all connected by oil pipe the oilhole of lower section
Reversal valve is connect, reversal valve connects the second fuel tank through oil pump；Reversal valve is equipped with electromagnet, is wound on coil, coil string on electromagnet
Connect switch；Control terminal is separately connected motor, switch and oil pump by different control lines.
A kind of cavitation ball blasting method of the miniature taper hole inner surface cavitation peening system of hydraulic drive type of the present invention is adopted
Technical solution is to include the following steps:
Be marked with oil liquid in the A: the first fuel tank of step, injecting oil liquid in the taper hole of workpiece, control terminal controls motor and rotates forward, cylinder and
Oil cylinder moves downward, and when the lower end surface of cylinder abuts the upper surface of workpiece, closes motor；
Step B: the work of control terminal control oil pump, the work of reversal valve left position, oil liquid enter the cavity of resorption of oil cylinder, push up work
Plug drives piston rod and lower piston to move up, returns to the oil of cylinder upper cavity oil in the second fuel tank；Control terminal closure switch, reversal valve
It works to right position, simultaneously to oil cylinder upper and lower cavity fuel feeding, upper piston moves down oil pump；Control terminal disconnects switch, reversal valve later
Left position work is returned to, lower piston moves upwards again, and so on forms cavitation phenomenon, carries out shot-peening to the inner surface of taper hole；
Step C: after the completion of shot-peening, control terminal control oil pump fuel cut-off, control motor reversion drives cylinder, oil cylinder to transport upwards
It is dynamic.
The present invention is after adopting the above technical scheme, have the beneficial effect that
1, the present invention is constantly to be changed miniature based on a kind of novel cavitation generation and processing method that is, by reciprocating motion of the pistons
Liquid volume is sealed in taper hole.Seal liquid volume increase when, sealing fluid pressure can be reduced to hold-up vapour pressure with
Under, form cavitation phenomenon；When sealing liquid volume reduction, liquid pressure increase is sealed, promotes cavitation bubble to crumble and fall, to realize
It is crumbled and fall using cavitation bubble the effect of the shock wave and high speed miniflow that can generate, shot peening strengthening is carried out to miniature taper hole inner surface.
2, the cavitation impact in the present invention is a kind of flexible " hammering ", can obtain surface more better than tradition machinery shot-peening
Quality, in addition to smaller surface roughness value, other than material surface profile more links up smoothly, additionally it is possible to material table be effectively reduced
The nocuousness deformation such as Sharp edge, the micro-crack in face, further increases the comprehensive performance of material.
3, the present invention has many advantages, such as that easy to operate, structure is simple, high-efficient, in addition, the versatility of present system is very
By force, also reinforcing processing can be carried out to the workpiece with multiple blind holes to blind hole machining of different shapes, and simultaneously.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description:
Fig. 1 is a kind of structural schematic diagram of the miniature taper hole inner surface cavitation peening system of hydraulic drive type of the present invention；
Fig. 2 is the schematic enlarged-scale view of driving device in Fig. 1；
Fig. 3 is the structure enlargement diagram of hydraulic piston telecontrol equipment in Fig. 1；
In figure: 1. driving devices；2. chuck；3. workpiece；4. the first fuel tank；5. position sensor；6. hydraulic piston is transported
Dynamic device；7. control terminal；8. motor；9. shaft coupling；10. first bevel gear；11. second bevel gear；12. connecting rod；13. first
Bearing；14. trihedral；15. second bearing；16. workbench；17. screw rod；18. sliding block；19. guide rail；20. cover board；21. position
Sensor；22. sealing ring；23. cylinder；24. oil cylinder；25. upper piston；26. piston rod；27. lower piston；28. switch；29. electricity
Magnet；30. reversal valve；31. oil pump；32. the second fuel tank；33. position sensor；34. position sensor；35. gas vent；36.
Taper hole；37. oilhole.
Specific embodiment
As shown in Figure 1, a kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type of the present invention includes driving device
1, fuel tank 4, chuck 2, hydraulic piston telecontrol equipment 6, position sensor and control terminal 7.
Referring back to Fig. 2, driving device 1 includes workbench 16, motor 8, shaft coupling 9, connecting rod 12, first bearing 13, the
Two bearings 15, trihedral 14, first bevel gear 10, second bevel gear 11, screw rod 17, guide rail 19, sliding block 18 and cover board 20.Work
Make to be fixedly connected with two trihedrals 14 on platform 16, two trihedrals 14 are arranged symmetrically Face to face, and each trihedral 14 is by two
A vertical plane and a horizontal plane are constituted, and one of vertical plane is fixedly connected by screw with workbench 16, another is vertical
Face connects horizontal 12 one end of connecting rod by first bearing 13, and such 12 both ends of connecting rod respectively pass through first bearing 13 and are supported on three faces
On body 14.The both ends of connecting rod 12 are fixedly connected with a first bevel gear 10 by each coaxial heart of key.The water of each trihedral 14
Plane respectively passes through a second bearing 15 and connects vertical 17 lower section of screw rod, and screw rod 17 is made to be supported on three faces by second bearing 15
On body 14.The lower end of screw rod 17 also passes through the coaxial heart of key and is fixedly connected with second bevel gear 11, second bevel gear 11 and connecting rod
First bevel gear 10 on 12 is meshed.One end of connecting rod 12 also passes through shaft coupling 9 and connect with motor 8, drives connecting rod by motor 8
12 rotations.First bevel gear 10 and second bevel gear 11 are located in trihedral 14, and two screw rods 17 are located at 12 top of connecting rod, symmetrically
Vertical to place, two screw rods 17 pass through workbench 16 and second bearing 15.
Two vertical guide rails 19 are fixedly connected on workbench 16, two guide rails 19 are arranged symmetrically Face to face, each
Sliding slot, sliding slot connection sliding block 18 are provided on guide rail 19, sliding block 18 is mounted in sliding slot, can be moved up and down along the chute.In two cunnings
A horizontal cover board 20 is connected between the upper end of block 18, cover board 20 is located at the top of workbench 16 and screw rod 17, and 20 liang of cover board
It holds and is bolted to connection with the sliding block 18 at both ends.The lower end of two sliding blocks 18 is respectively connected through a screw thread a corresponding screw rod
17, with screw rod 17 by being threadedly engaged to form leading screw and nut mechanism.
As shown in Figure 1, the first fuel tank 4 is fixedly mounted on workbench 16, the first fuel tank 4 is in the underface of cover board 20.The
Chuck 2 is installed, chuck 2 is fixed on 4 inner bottom surface of the first fuel tank, and fixation clips on chuck 2 inside one fuel tank 4
Workpiece 3, workpiece 3 are placed on 4 inner bottom surface of the first fuel tank vertically, are provided with miniature taper hole 36 thereon, the diameter of miniature taper hole 36 compared with
It is small, diameter≤2.5mm of 36 upper end of taper hole.The upper end of taper hole 36 is big end, and big end is opening up, and bottom does not penetrate through.
Hydraulic piston telecontrol equipment 6 includes cylinder 23, sealing ring 22, upper piston 25, lower piston 27, piston rod 26, oil
Cylinder 24, switch 28, electromagnet 29, reversal valve 30, oil pump 31 and the second fuel tank 32.The cylinder 23 is vertically disposed to workpiece
3 surface, cylinder 23 are bolted to connection in the lower section of cover board 20.There are oil cylinder 24, oil cylinder 24 in the surface of cylinder 23
Cross the top that bolt is fixedly connected on cover board 20.It is sealed in the inner cavity of oil cylinder 24 and connects upper piston 25 while formula can be moved up and down,
It is sealed in the inner cavity of cylinder 23 and connects lower piston 27 while formula can be moved up and down.It is solid between upper piston 25 and the centre of lower piston 27
Surely vertical piston rod 26 is connected.Piston rod 26 passes through 24 bottom of oil cylinder, and close with sealing ring between junction and oil cylinder 24
Envelope.
The side wall of 24 top and bottom of oil cylinder is respectively provided with an oilhole 37, and oilhole 37 is communicated with the inner cavity of oil cylinder 24.Top
Oilhole 37 in the top of upper piston 25, the oilhole 37 of lower section is in the lower section of upper piston 25.Upper and lower two oilholes 37 all pass through oil
Pipe connects reversal valve 30, and reversal valve 30 connects oil pump 31 through oil pipe, and oil pump 31 connects the second fuel tank 32.It is equipped on reversal valve 30
Electromagnet 29 is wound on coil, coil tandem switch 28 on electromagnet 29, and coil is powered, and electromagnet 29 is attracted, make reversal valve 30 from
Left position work switches to right position work.
It is provided with gas vent 35 on the upper end side wall of cylinder 23, gas vent 35 is in the top of lower piston 27, and gas vent 35 is by gas
The inner cavity of cylinder 23 is connected to ambient atmosphere, and the inner cavity of cylinder 23 is enable to discharge gas.
It is fixed on the lower end surface of cylinder 23 to be embedded with sealing ring 22, when the lower end surface of cylinder 23 is fitted tightly on workpiece 3
When end face, sealing ring 22 seals the taper hole 36 of workpiece 3, makes taper hole 36 and the shape between 23 inner cavity of cylinder of 27 lower section of lower piston
At a sealed chamber.
Cylinder 23, oil cylinder 24, upper piston 25, lower piston 27, piston rod 26 and workpiece 3 taper hole 36 vertical central axis
Collinearly.
As shown in Figure 1-3, a 19 upper end installation site sensor 21 of guide rail wherein, close to 3 upper end installation position of workpiece
Sensor 5 is set, position sensor 21, position sensor 5 are respectively used in detection hydraulic piston telecontrol equipment 6 locating for cylinder 23
Upper and lower position.The feedback signal of two position sensors 21,5 passes through signal wire and is transferred to control terminal 7.
The installation site sensor 33 at the upper end close to cylinder 23, the installation site sensor at the lower end of cylinder 23
34.Position sensor 33,34 is respectively used to upper and lower position locating for detection lower piston 27.Two position sensors 33,34 are logical
It crosses signal wire and is connected to control terminal 7.
Control terminal 7 is separately connected motor 8, switch 28 and oil pump 31 by different control lines, and control motor 8 is opened
Close the movement of 28 and oil pump 31.
Such as Fig. 1-3, when miniature taper hole inner surface cavitation peening system of the present invention works, first in the first fuel tank 4
In be marked with oil liquid, the height of oil liquid is higher than the height of workpiece 3.By 3 clamping of workpiece on chuck 2, the taper hole of workpiece 3 at this time
Injecting oil liquid in 36.Control terminal 7 issue signal open motor 8, motor 8 rotate forward, drive connecting rod 12, first bevel gear 10,
Second bevel gear 11, screw rod 17, sliding block 18 successively act, and sliding block 18 moves downward, and are fixedly connected on cover board 20 to drive
Cylinder 23, oil cylinder 24 is whole moves downward, when moving in the oil liquid of the first fuel tank 4, the lower chambers of cylinder 23 are also marked with oil
Liquid.When the lower end surface of cylinder 23 abuts the upper surface of workpiece 3,5 feedback signal of position sensor, control terminal 7 receives signal pass
Close motor 8.At this point, injecting oil liquid in sealed chamber.
Then, control terminal 7 issues signal control oil pump 31 and works, the fuel feeding into oil cylinder 24.Switch 28 disconnects at this time, commutation
The work of 30 left position of valve, oil liquid enter the cavity of resorption of oil cylinder 24, i.e. the oil liquid lower section that enters upper piston 25, push up upper piston 25,
It drives piston rod 26 and lower piston 27 to move up, returns to the oil of 24 epicoele of oil cylinder in the second fuel tank 32.When lower piston 27 reaches position
When setting the induction zone of sensor 33, position sensor 33 issues signal, 7 closure switch 28 of control terminal, electromagnet 29 to control terminal 7
Coil is powered, and pushes reversal valve 30 to right position to work, oil pump 31 is simultaneously to 24 upper and lower cavity fuel feeding of oil cylinder.Due to the piston of cavity of resorption
Bar 26 has accounted for a part of 25 compression area of upper piston, smaller than 25 compression area of upper piston of epicoele, and upper piston 25 is upward
Thrust is less than downward thrust, thus upper piston 25 moves down, and the oil of cavity of resorption and the oil of oil pump 31 are merged together and all flowed
To epicoele.In this way, the oil that the flow of epicoele is supplied in addition to oil pump 31, the more oil returned from cavity of resorption, flow is big, and upper piston 25 moves
Dynamic speed moves up fastly with regard to fast, therefore than upper piston 25.Drive piston rod 26, lower piston 27 downward when upper piston 25 moves down
When moving to the induction zone of 27 in-position sensor 34 of lower piston, position sensor 34 issues signal, control terminal to control terminal 7
7 disconnect switch 28, and reversal valve 30 returns to left position work, and lower piston 27 moves upwards again at this time.And so on move, it is reciprocal to transport
Dynamic frequency isHz constantly changes the volume of oil liquid in sealed chamber, when the liquid volume of sealing increases, fluid pressure
Hold-up vapour pressure can be reduced to hereinafter, forming cavitation phenomenon；When sealing liquid volume reduction, sealing fluid pressure increases
Add, cavitation bubble is promoted to crumble and fall, so that the effect of crumble and fall using the cavitation bubble shock wave and high speed miniflow that can generate is realized, to workpiece
The inner surface of 3 taper hole 36 carries out shot-peening.
After the completion of shot-peening, lower piston 27 returns to initial position, and position sensor 34 issues signal, control terminal 7 to control terminal 7
31 fuel cut-off of control oil pump.Later, control terminal 7 opens motor 8, and the reversion of motor 8 drives cylinder 23, oil cylinder 24 to transport upwards
Dynamic, when sliding block 18 is close to position sensor 21, control terminal 7 closes motor 8, takes out workpiece 3.
Claims (8)
1. a kind of miniature taper hole inner surface cavitation peening system of hydraulic drive type, including workbench (16), it is characterized in that: workbench
(16) be fixedly connected with two trihedrals being arranged symmetrically Face to face (14) on, each trihedral (14) by two vertical planes and
One horizontal plane is constituted, and one of vertical plane is fixedly connected with workbench (16), and horizontal connecting rod (12) both ends respectively pass through one
A first bearing (13) is supported on another vertical plane of a trihedral (14), and the both ends of connecting rod (12) are respectively fixedly connected with one
A first bevel gear (10), the horizontal plane of each trihedral (14) respectively pass through a second bearing (15) and connect a vertical silk
Bar (17) lower section, the lower end of each screw rod (17) are also respectively fixedly connected with a second bevel gear (11), each second bevel gear
(11) it is meshed with a corresponding first bevel gear (10), connecting rod (12) one end also passes through shaft coupling (9) and motor (8) even
It connects；The two vertical guide rails (19) being arranged symmetrically Face to face are fixedly connected on workbench (16), each guide rail (19) passes through
Sliding slot connection sliding block (18), connects a horizontal cover board (20) between two sliding block (18) upper ends, under each sliding block (18)
End is respectively connected through a screw thread a corresponding screw rod (17)；Fixed the first oil being located at immediately below cover board (20) on workbench (16)
Case (4), the workpiece (3) for being provided with miniature taper hole (36) are placed on the first fuel tank (4) inner bottom surface vertically, and cylinder (23) is arranged vertically
In workpiece (3) surface and be fixedly connected on the lower sections of cover board (20), the surface of cylinder (23), which is equipped with, is fixedly connected on lid
Oil cylinder (24) above plate (20) is equipped with upper piston (25) in the inner cavity of oil cylinder (24), and lower work is equipped in the inner cavity of cylinder (23)
It fills in (27), vertical piston rod (26) is fixedly connected between upper piston (25) and lower piston (27)；Oil cylinder (24) top and bottom
Side wall be respectively provided with an oilhole (37), the oilhole (37) of top is in the top of upper piston (25), and the oilhole (37) of lower section is upper
The lower section of piston (25), two oilholes (37) all connect reversal valve (30) by oil pipe, and reversal valve (30) is connected through oil pump (31)
Second fuel tank (32)；Reversal valve (30) is equipped with electromagnet (29), and electromagnet (29) is wound on coil, and coil tandem switchs (28)；
Control terminal (7) is separately connected motor (8), switch (28) and oil pump (31) by different control lines.
2. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that: gas
Cylinder (23), oil cylinder (24), upper piston (25), lower piston (27), the vertical central axis of piston rod (26) and taper hole (36) are conllinear.
3. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that: gas
It is fixed on the lower end surface of cylinder (23) to be embedded with sealing ring (22).
4. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that: gas
It is provided on the upper end side wall of cylinder (23) gas vent (35), top of the gas vent (35) in lower piston (27).
5. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that:
One of guide rail (19) upper end is equipped with second position sensor (21), is equipped with first position sensor close to workpiece (3) upper end
(5), the locating upper and lower position of cylinder (23) is detected.
6. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that:
The third place sensor (33) are equipped at the upper end of cylinder (23), the 4th position is equipped at the lower end of cylinder (23) and is passed
Sensor (34) detects lower piston (upper and lower position locating for 27(.
7. the miniature taper hole inner surface cavitation peening system of a kind of hydraulic drive type according to claim 1, it is characterized in that: the
The chuck (2) that can clip workpiece (3) is fixedly connected on one fuel tank (4) inner bottom surface.
8. a kind of cavitation shot-peening of the miniature taper hole inner surface cavitation peening system of hydraulic drive type as described in claim 1,
It is characterized in including the following steps:
Oil liquid, injecting oil liquid in the taper hole (36) of workpiece (3) are marked in the A: the first fuel tank of step (4), control terminal (7) controls electronic
Machine (8) rotates forward, and cylinder (23) and oil cylinder (24) move downward, when the lower end surface of cylinder (23) abuts the upper surface of workpiece (3),
It closes motor (8)；
Step B: control terminal (7) control oil pump (31) work, the work of commutation (valve 30) left position, oil liquid enter under oil cylinder (24)
Chamber pushes up upper piston (25), and piston rod (26) and lower piston (27) is driven to move up, and the oil of oil cylinder (24) epicoele is made to return to the
In two fuel tanks (32)；Control terminal (7) closure switch (28), reversal valve (30) to right position work, and oil pump (31) is simultaneously to oil cylinder
(24) upper and lower cavity fuel feeding, upper piston (25) move down；Control terminal (7) disconnects switch (28) later, and reversal valve (30) returns to a left side
Position work, lower piston (27) move upwards again, and so on form cavitation phenomenon, spray to the inner surface of taper hole (36)
Ball；
Step C: after the completion of shot-peening, control terminal (7) control oil pump (31) fuel cut-off, control motor (8) reversion drives cylinder
(23), oil cylinder (24) moves upwards.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347497.7A CN110144453B (en) | 2019-04-28 | 2019-04-28 | Hydraulic drive type micro taper hole inner surface cavitation shot blasting system and method |
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|---|---|---|---|
| CN201910347497.7A CN110144453B (en) | 2019-04-28 | 2019-04-28 | Hydraulic drive type micro taper hole inner surface cavitation shot blasting system and method |
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| CN110144453B CN110144453B (en) | 2020-11-20 |
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Cited By (2)
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| WO2020221377A3 (en) * | 2019-04-28 | 2020-12-17 | 江苏大学 | Magnetic drive-type device for strengthening inner surface of tapered hole |
| CN115074518A (en) * | 2022-06-28 | 2022-09-20 | 江苏大学 | Cavitation spiral jet flow blind hole inner surface post-treatment device and method |
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| WO2020221377A3 (en) * | 2019-04-28 | 2020-12-17 | 江苏大学 | Magnetic drive-type device for strengthening inner surface of tapered hole |
| GB2589023A (en) * | 2019-04-28 | 2021-05-19 | Univ Jiangsu | Magnetic drive-type device for strengthening inner surface of tapered hole |
| GB2589023B (en) * | 2019-04-28 | 2021-11-17 | Univ Jiangsu | Magnetic drive-type apparatus for strengthening inner surface of tapered hole |
| CN115074518A (en) * | 2022-06-28 | 2022-09-20 | 江苏大学 | Cavitation spiral jet flow blind hole inner surface post-treatment device and method |
| CN115074518B (en) * | 2022-06-28 | 2023-09-22 | 江苏大学 | Cavitation spiral jet blind hole inner surface post-treatment device and method |
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| CN110144453B (en) | 2020-11-20 |
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