CN105058245B - Abrasive particle flow ultra-precision machining device - Google Patents

Abrasive particle flow ultra-precision machining device Download PDF

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Publication number
CN105058245B
CN105058245B CN201510434756.1A CN201510434756A CN105058245B CN 105058245 B CN105058245 B CN 105058245B CN 201510434756 A CN201510434756 A CN 201510434756A CN 105058245 B CN105058245 B CN 105058245B
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CN
China
Prior art keywords
abrasive flow
pressure
head
abrasive
ultra
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201510434756.1A
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Chinese (zh)
Other versions
CN105058245A (en
Inventor
李俊烨
张心明
张若妍
王德民
刘建河
许颖
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Changchun University of Science and Technology
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Changchun University of Science and Technology
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Priority to CN201510434756.1A priority Critical patent/CN105058245B/en
Publication of CN105058245A publication Critical patent/CN105058245A/en
Application granted granted Critical
Publication of CN105058245B publication Critical patent/CN105058245B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00Abrasive blasting machines or devices; Plants
    • B24C3/32Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/10Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
    • B24B31/116Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Abstract

The invention provides an abrasive particle flow ultra-precision machining device. Injection pressure and speed of abrasive particle flows are adjusted by adjusting threads between a pressure head and an abrasive particle flow injection polishing nozzle, and pressure is provided for a sealed box through a pneumatic cylinder, so that pressure is applied to the pressure head through a pressure plug. According to the abrasive particle flow ultra-precision machining device, the pneumatic cylinder for replacing a spring applies pressure to the pressure head so that accuracy of pressure of the abrasive particle flow injection polishing nozzle to a work-piece can be effectively improved, the abrasive particle flow machining accuracy is improved, and ultra-precision machining is achieved; meanwhile, concentration of abrasive particles in the abrasive particle flows is monitored and controlled in real time, so that machining accuracy and efficiency are guaranteed; Injection pressure and speed of the abrasive particle flows are adjusted by adjusting the threads between the pressure head and the abrasive particle flow injection polishing nozzle, and a pressure-maintaining flow stopping part is arranged at the tail end of the abrasive particle flow injection polishing nozzle so that the machining efficiency can be effectively improved. By means of the abrasive particle flow ultra-precision machining device, both machining efficiency and ultra-precision machining accuracy can be guaranteed.

Description

A kind of abrasive Flow ultra-precision processing apparatus
Technical field
The present invention relates to precision processing technology field, specially a kind of abrasive Flow ultra-precision processing apparatus, belong to ultraprecise Processing technique field.
Background technology
In field of machining, precision finishing method is much in addition to traditional mechanical means, also ultrasonic polishing Chemical polishing, electrochemical polish and Electrochemical- mechanical- finishing etc., abrasive Flow Machining is as the precise light developing rapidly One of finishing processing method, has obtained extensively in the machinery industries such as aviation military project, textile machine, steam turbine, mould and hydraulic pressure Application.
Abrasive Flow Ultraprecision Machining is a kind of up-to-date machining process, and it is (mixed with mill with abrasive particle flow medium A kind of flowable mixture of grain) under pressure flow through the required surface processing of workpiece, carry out deburring, deburring, rounding Angle, to reduce percent ripple and the roughness of surface of the work, reaches precision machined fineness.Abrasive Flow Ultra-precision Turning is needing Complicated manual polish or complex-shaped workpiece, and the unmanageable position of additive method be best alternative plus Work method.When abrasive Flow Ultra-precision Turning also apply be applicable to cylinder, vibrations and other high-volume processing not satisfaction or processes Want injured workpiece.And the delamination of regeneration and previous operation add after effectively obtaining removing electro-discharge machining or laser beam processing The residual stress that work surface is remained.
Abrasive Flow is the vicidity abrasive material containing abrasive particle, suitable embedded SMA actuators, because its no solid form determines processing mechanism Complexity, at present, Chinese scholars are mainly from processing to abrasive Flow for the factor such as the viscosity of abrasive Flow, operating pressure, abrasive particles Method is studied, and gradually develops the device that some carry out Ultra-precision Turning using abrasive Flow to workpiece, but, current mill The abrasive particle flow injection head of grain stream processing unit (plant) typically to give injector head certain pressure using spring, but adopts spring pressure Power although some employ pressure transducer, but, the mode of this applying power is not gentle, and pressure can be with the inefficacy of spring And be a greater impact, thus affecting the machining accuracy of workpiece, and the abrasive particle flowing pressure of shower nozzle relies solely on compression pump Adjust, regulating effect is limited, and the end of abrasive particle flow injection head lacks choke apparatus so that abrasive Flow percussion declines, Working (machining) efficiency is relatively low.
Based on above technical problem, the invention provides a kind of abrasive Flow ultra-precision processing apparatus, it is right to be come using pneumatic cylinder Head applies pressure, thus substituting spring, can effectively improve the pressure accuracy to workpiece for the abrasive Flow jet polishing mouth, Improve abrasive Flow Machining precision, realize Ultra-precision Turning, meanwhile, to wear particle concentration real-time monitoring in abrasive Flow and control it is ensured that Machining accuracy and efficiency, additionally, realize abrasive Flow spray by adjusting the screw thread between head and abrasive Flow jet polishing mouth Injection pressure and the regulation of speed, can be further ensured that working (machining) efficiency and machining accuracy, in the end of abrasive Flow jet polishing mouth Setting pressurize fluid stopping part, can effectively improve working (machining) efficiency, the present invention can not only ensure working (machining) efficiency, and ensure that The precision of Ultra-precision Turning.
Content of the invention
It is an object of the invention to provide a kind of structure and using simple, rationally, low cost, process is simple, stable performance, make A kind of abrasive Flow ultra-precision processing apparatus with life-span length.
For achieving the above object, the present invention adopts the following technical scheme that:A kind of abrasive Flow ultra-precision processing apparatus, it includes Pneumatic cylinder, closed box, pressure chamber, head, abrasive Flow jet polishing mouth and recycling can are it is characterised in that one end of pressure chamber It is arranged in described closed box, the upper end of pressure chamber forms confined space, pressure chamber lower end with the upper space of described closed box It is connected with head, head lower end is provided with external screw thread, the upper end of abrasive Flow jet polishing mouth is provided with female thread, head It is rotatably connected using screw thread and abrasive Flow jet polishing mouth between, by adjusting between head and abrasive Flow jet polishing mouth The regulation to realize abrasive Flow injection pressure and speed for the screw thread, pneumatic cylinder is connected with the upper end of closed box, by pneumatic cylinder to Described closed box provides pressure, applies pressure will pass through pressure chamber to head, the side wall of head is provided with abrasive Flow Entrance, the lower end of head is provided with abrasive particle flow export.
Further, preferably, being provided with pressure gauge one between pneumatic cylinder and closed box, pressure chamber is up big and down small rank Scalariform, is provided with sealing ring between head and abrasive Flow jet polishing mouth, head is internally provided with the mill of bending at a right angle The circulation passage of grain stream, the lower end of head is cone, and described abrasive Flow jet polishing mouth is corresponding with head cooperation Cone, the lower end surrounding of abrasive Flow jet polishing mouth is provided with pressurize fluid stopping part, and pressurize fluid stopping part is funnel-form, and pressurize The lower surface of fluid stopping part be shaped as spherical arc surface, recycling can is arranged on lower section, recycling can and the institute of described pressurize fluid stopping part The one end stating filter connects, and one end that the other end of filter measures tank with described wear particle concentration is connected, and wear particle concentration measures The other end of tank is connected with one end of abrasive Flow supplying tank, abrasive Flow supplying tank is additionally provided with abrasive particle and adds tank, described abrasive particle The other end of stream supplying tank is connected with the inlet of described force (forcing) pump, the mill on the liquid outlet of force (forcing) pump and described pressure rostral wall Grain inflow entrance is connected.
Further, preferably, being provided with check valve between described filter and described wear particle concentration measurement tank.
Further, preferably, being provided with workpiece fixing seat in described recycling can, workpiece to be processed is fixedly installed on described In workpiece fixing seat.
Further, preferably, between abrasive particle inflow entrance on the liquid outlet of described force (forcing) pump and described pressure rostral wall It is provided with pressure gauge two.
Further, preferably, described abrasive particle adds is provided with electromagnetic valve between tank and described abrasive Flow supplying tank, described Wear particle concentration measurement head in electromagnetic valve and described wear particle concentration measurement tank is all connected with controller.
Further, preferably, the upper end of described pressure chamber is formed in confined space with the upper space of described closed box It is provided with fluid media (medium).
Further, preferably, the flight pitch of screw thread between described head and described abrasive Flow jet polishing mouth For 0.2-1.2mm.
The beneficial effects of the present invention is:
The invention provides a kind of abrasive Flow ultra-precision processing apparatus, to apply pressure to head using pneumatic cylinder, from And substitute spring, can effectively improve the pressure accuracy to workpiece for the abrasive Flow jet polishing mouth, improve abrasive Flow Machining essence Degree, realizes Ultra-precision Turning, meanwhile, to wear particle concentration real-time monitoring in abrasive Flow and control it is ensured that machining accuracy and efficiency, this Outward, the tune of abrasive Flow injection pressure and speed is realized by adjusting the screw thread between head and abrasive Flow jet polishing mouth Section, can be further ensured that working (machining) efficiency and machining accuracy, arrange pressurize fluid stopping part, energy in the end of abrasive Flow jet polishing mouth Enough effectively raising working (machining) efficiencies, the present invention can not only ensure working (machining) efficiency, and ensure that the precision of Ultra-precision Turning.
Brief description
Fig. 1 is a kind of structural representation of abrasive Flow ultra-precision processing apparatus of the present invention;
Wherein, 1, pneumatic cylinder, 2, pressure gauge one, 3, closed box, 4, pressure chamber, 5, head, 6, abrasive Flow jet polishing Mouth, 7, sealing ring, 8, pressurize fluid stopping part, 9, workpiece, 10, recycling can, 11, filter, 12, check valve, 13, wear particle concentration measurement Tank, 14, abrasive Flow supplying tank, 15, abrasive particle add tank, 16, force (forcing) pump, 17, pressure gauge two, 18, workpiece fixing seat.
Specific embodiment
To carry out detailed description to the present invention below in conjunction with accompanying drawing.It should be appreciated, however, that being provided only more of accompanying drawing Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in figure 1, the present invention provides a kind of abrasive Flow ultra-precision processing apparatus, it includes pneumatic cylinder 1, closed box 3, pressure Power plug 4, head 5, abrasive Flow jet polishing mouth 6 and recycling can 10, one end of described pressure chamber 4 is arranged on described closed box 3 Interior, the upper end of described pressure chamber 4 forms confined space, described pressure chamber 4 lower end and pressure with the upper space of described closed box 3 5 connections, described head 5 lower end is provided with external screw thread, and the upper end of abrasive Flow jet polishing mouth 6 is provided with female thread, described It is rotatably connected using screw thread between head 5 and described abrasive Flow jet polishing mouth 6, by adjusting described head 6 and institute State the regulation to realize abrasive Flow injection pressure and speed of screw thread between abrasive Flow jet polishing mouth 6, described pneumatic cylinder 1 with close The upper end closing case 3 connects, and provides pressure by described pneumatic cylinder 1 to described closed box 3, with will pass through described pressure thrust described Head 5 applies pressure, the side wall of described head 5 is provided with abrasive particle inflow entrance, the lower end of described head 5 is provided with mill Grain flow export.
In the present embodiment, it is provided with described pressure gauge 1, described pressure between described pneumatic cylinder 1 and described closed box 3 Plug 4 is up big and down small stepped, is provided with sealing ring 7, institute between described head 5 and described abrasive Flow jet polishing mouth 6 State the circulation passage that head 5 is internally provided with the abrasive Flow of bending at a right angle, the lower end of described head 5 is cone, institute Stating abrasive Flow jet polishing mouth 6 is to coordinate corresponding cone with described head 5, under described abrasive Flow jet polishing mouth 6 End surrounding is provided with described pressurize fluid stopping part 8, and pressurize fluid stopping part 8 is funnel-form, and the shape of the lower surface of pressurize fluid stopping part 8 For spherical arc surface, recycling can 10 is arranged on the lower section of described pressurize fluid stopping part 8, one end of recycling can 10 and described filter 11 Connect, one end that the other end of filter 11 measures tank 13 with described wear particle concentration is connected, wear particle concentration measures the another of tank 13 End is connected with one end of abrasive Flow supplying tank 14, abrasive Flow supplying tank 14 is additionally provided with abrasive particle and adds tank 15, described abrasive Flow The other end of supplying tank 14 is connected with the inlet of described force (forcing) pump 16, the liquid outlet of force (forcing) pump 16 and described head 5 side wall On abrasive particle inflow entrance be connected.
Additionally, being provided with check valve 12 between filter 11 and described wear particle concentration measurement tank 13.Setting in recycling can 10 There is workpiece fixing seat 18, workpiece to be processed 9 is fixedly installed in described workpiece fixing seat 18.The liquid outlet of force (forcing) pump 16 with described It is provided with pressure gauge 2 17 between abrasive particle inflow entrance on head 5 side wall.Abrasive particle adds tank 15 and described abrasive Flow supplying tank It is provided with electromagnetic valve, described electromagnetic valve and described wear particle concentration measure wear particle concentration measurement head in tank all and controller between 14 Connect.It is provided with fluid media (medium) in the upper end of pressure chamber 4 and the upper space formation confined space of described closed box 3.
For the ease of accurate adjustment, the flight pitch of the screw thread between described head 5 and abrasive Flow jet polishing mouth 6 is 0.2-1.2mm.
The present invention to apply pressure to head using pneumatic cylinder, thus substituting spring, can effectively improve abrasive Flow The pressure accuracy to workpiece for the jet polishing mouth, improves abrasive Flow Machining precision, realizes Ultra-precision Turning, meanwhile, to abrasive Flow Middle wear particle concentration real-time monitoring, is thrown it is ensured that machining accuracy and efficiency additionally, passing through regulation head and being sprayed with abrasive Flow with control Screw thread between light mouth, to realize the regulation of abrasive Flow injection pressure and speed, can be further ensured that working (machining) efficiency and processing essence Degree, arranges pressurize fluid stopping part 8 in the end of abrasive Flow jet polishing mouth 6, can effectively improve working (machining) efficiency, the present invention is not only Ensure that working (machining) efficiency, and ensure that the precision of Ultra-precision Turning.
When the abrasive Flow ultra-precision processing apparatus using the present invention carry out Ultra-precision Turning to workpiece, initially with air pressure Cylinder provides certain pressure to closed box, so that this pressure is realized uniformly descending pressure to pressure chamber, head is applied Pressure, and acting on workpiece, improves abrasive Flow Machining efficiency, this applies stressed mode than using spring to head Mode more reliable it is therefore prevented that spring lost efficacy for a long time and spring force inhomogeneities problem, meanwhile, the present invention passes through to adopt Defecator and abrasive Flow concentration detection apparatus, improve the utilization rate of abrasive Flow it is ensured that in abrasive Flow abrasive particle concentration, Improve while machining accuracy it is ensured that working (machining) efficiency.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, common about technical field Technical staff, without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore all Equivalent technical scheme falls within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.

Claims (8)

1. a kind of abrasive Flow ultra-precision processing apparatus, it includes pneumatic cylinder, closed box, pressure chamber, head, abrasive Flow injection throwing , it is characterised in that one end of pressure chamber is arranged in described closed box, the upper end of pressure chamber is airtight with described for light mouth and recycling can The upper space of case forms confined space, and pressure chamber lower end is connected with head, and head lower end is provided with external screw thread, abrasive Flow The upper end of jet polishing mouth is provided with female thread, is rotatably connected using screw thread between head and abrasive Flow jet polishing mouth, Realize the regulation of abrasive Flow injection pressure and speed, gas by adjusting the screw thread between head and abrasive Flow jet polishing mouth Cylinder pressure is connected with the upper end of closed box, provides pressure by pneumatic cylinder to described closed box, will pass through pressure chamber to head Apply pressure, the side wall of head is provided with abrasive particle inflow entrance, the lower end of head is provided with abrasive particle flow export.
2. a kind of abrasive Flow ultra-precision processing apparatus according to claim 1 it is characterised in that pneumatic cylinder and closed box it Between be provided with pressure gauge one, pressure chamber is up big and down small stepped, is provided between head and abrasive Flow jet polishing mouth Sealing ring, head is internally provided with the circulation passage of the abrasive Flow of bending at a right angle, and the lower end of head is cone, described Abrasive Flow jet polishing mouth is to coordinate corresponding cone with head, and the lower end surrounding of abrasive Flow jet polishing mouth is provided with guarantor Pressure fluid stopping part, pressurize fluid stopping part is funnel-form, and the lower surface of pressurize fluid stopping part be shaped as spherical arc surface, recycling can sets Put the lower section in described pressurize fluid stopping part, recycling can is connected with one end of filter, the other end of filter is surveyed with wear particle concentration One end of measuring tank connects, and the other end that wear particle concentration measures tank is connected with one end of abrasive Flow supplying tank, on abrasive Flow supplying tank Be additionally provided with abrasive particle and add tank, the described other end of abrasive Flow supplying tank is connected with the inlet of force (forcing) pump, force (forcing) pump go out liquid Mouth is connected with the abrasive particle inflow entrance on described pressure rostral wall.
3. a kind of abrasive Flow ultra-precision processing apparatus according to claim 2 it is characterised in that described filter with described It is provided with check valve between wear particle concentration measurement tank.
4. a kind of abrasive Flow ultra-precision processing apparatus according to claim 1 are it is characterised in that arrange in described recycling can There is workpiece fixing seat, workpiece to be processed is fixedly installed in described workpiece fixing seat.
5. a kind of abrasive Flow ultra-precision processing apparatus according to claim 2 it is characterised in that described force (forcing) pump go out liquid It is provided with pressure gauge two between abrasive particle inflow entrance on mouth and described pressure rostral wall.
6. a kind of abrasive Flow ultra-precision processing apparatus according to claim 2 it is characterised in that described abrasive particle add tank with It is provided with electromagnetic valve, described electromagnetic valve and described wear particle concentration measure the wear particle concentration survey in tank between described abrasive Flow supplying tank Amount head is all connected with controller.
7. a kind of abrasive Flow ultra-precision processing apparatus according to claim 1 are it is characterised in that the upper end of described pressure chamber Formed in confined space with the upper space of described closed box and be provided with fluid media (medium).
8. a kind of abrasive Flow ultra-precision processing apparatus according to claim 1-7 any one are it is characterised in that described pressure The flight pitch of the screw thread between power head and described abrasive Flow jet polishing mouth is 0.2-1.2mm.
CN201510434756.1A 2015-07-23 2015-07-23 Abrasive particle flow ultra-precision machining device Expired - Fee Related CN105058245B (en)

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CN105904349B (en) * 2016-05-31 2018-05-18 潍坊市高品机械制造有限公司 A kind of sanding device
CN108247548A (en) * 2017-12-21 2018-07-06 长春理工大学 A kind of abrasive Flow stirring polishing system of concentric counter rotating
CN109551378A (en) * 2018-11-30 2019-04-02 中国航空工业集团公司金城南京机电液压工程研究中心 A kind of multistation jet stream burr removal fixture
CN110370162B (en) * 2019-03-06 2024-01-23 长春理工大学 Clamp for precisely polishing valve sleeve by abrasive flow
CN109732468B (en) * 2019-03-09 2023-08-18 宿迁鼎诚机械制造有限公司 Micropore extrusion grinding machine tool
CN110370093B (en) * 2019-05-24 2020-08-18 浙江工业大学 Magnetic composite abrasive flow polishing method with angle adjustable mechanism
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CN110303435A (en) * 2019-08-02 2019-10-08 安徽理工大学 One kind mixing uniform cleaning type abrasive jet device convenient for abrasive material
CN111823127A (en) * 2020-08-01 2020-10-27 贵州安吉华元科技发展有限公司 Irregular-shape abrasive flow cleaning and finishing device
CN112428161A (en) * 2020-11-18 2021-03-02 安徽信息工程学院 Pre-mixed abrasive jet abrasive concentration monitoring system and monitoring method thereof
CN113183039B (en) * 2021-04-25 2023-03-14 太原理工大学 Special clamp for cable bending type tail attached abrasive flow machining and machining method
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CN115673998B (en) * 2022-12-30 2023-04-07 钜亚汽车零部件科技(太仓)有限公司 Polishing device for special-shaped porous part

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