CN112123031A - Device and process for polishing inner wall of non-magnetic-conductive metal pipe through electromagnet composite electrolysis - Google Patents
Device and process for polishing inner wall of non-magnetic-conductive metal pipe through electromagnet composite electrolysis Download PDFInfo
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- CN112123031A CN112123031A CN202011124882.4A CN202011124882A CN112123031A CN 112123031 A CN112123031 A CN 112123031A CN 202011124882 A CN202011124882 A CN 202011124882A CN 112123031 A CN112123031 A CN 112123031A
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- electromagnet
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- hollow copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines 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
- B24B31/10—Machines 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
- B24B31/112—Machines 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 magnetically consolidated grinding powder, moved relatively to the workpiece under the influence of pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
Abstract
The invention aims to provide a polishing device and a polishing process for the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis, wherein the polishing device comprises a machine tool, an electromagnet grinding device and an electrolytic polishing device, an electromagnet on the electromagnet grinding device is sleeved outside a workpiece and can be driven by a first sliding table on the machine tool to move along the axial direction of the workpiece, electrolyte in the electrolytic polishing device is sent into the workpiece through a hollow copper tube, and the hollow copper tube can be driven by a second sliding table on the machine tool to move along the axial direction of the workpiece. The invention relates to a polishing method for the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis, which can realize the polishing processing of the inner surface of the non-magnetic conductive metal tube. The polishing quality of the surface of the workpiece can be improved, the service life of the workpiece can be prolonged, the grinding speed can be effectively increased under the electrolysis condition, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of magnetic grinding and finishing processing, in particular to a polishing device and a polishing process for the inner wall of a non-magnetic conductive metal pipe by electromagnet composite electrolysis.
Background
With the increasing pace of urbanization and industrialization, people have an increasing demand for hard and difficult-to-process materials and have higher requirements for the surface quality of the hard and difficult-to-process materials. Traditional machining methods have not been able to meet the thermal demands of people. The appearance of special processing techniques solves most problems, but still some material processing problems are not solved, so that composite processing is carried forward.
Electrochemical machining is a method of machining a metal material by an electrochemical reaction. Can not be influenced by the removal of materials, and is suitable for the processing of any metal and alloy materials. However, because the related factors in the machining process are excessive, such as the flow field of the electrolyte, the interpolar electric field, the temperature field and the like all affect the workpiece, the requirements on the technological process control and the equipment are high to achieve good machining efficiency and surface quality. Electrolytic grinding is a special form of electrolytic machining, and is a combined machining method of electrolysis and machinery. It is realized by the combined action of metal dissolution and mechanical grinding. The abrasive particles continuously rotate under the action of the magnetic field, and a passive film generated by electrochemical reaction on the surface of the workpiece is removed, and the steps are repeated in a circulating mode until the machining is finished.
Disclosure of Invention
The invention aims to provide a device and a process for polishing the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis, which is a method for polishing the inner wall of the non-magnetic conductive metal tube by electromagnet composite electrolysis and can realize the polishing of the inner surface of the non-magnetic conductive metal tube. The polishing quality of the surface of the workpiece can be improved, the service life of the workpiece can be prolonged, the grinding speed can be effectively increased under the electrolysis condition, and the working efficiency is greatly improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a compound electrolysis of electro-magnet is used for burnishing device of non-magnetic conductive metal pipe inner wall, includes lathe, electro-magnet grinder, electropolishing device, the last electro-magnet suit of electro-magnet grinder is outside at the work piece to can follow work piece axial displacement through the drive of first slip table on the lathe, inside electrolyte among the electropolishing device sent into the work piece through hollow copper pipe, hollow copper pipe can be through the drive of second slip table on the lathe along work piece axial displacement.
The electromagnet grinding device comprises an electromagnet fixing frame and electromagnets, wherein the electromagnet fixing frame is fixed on a first sliding table on a machine tool, the electromagnet fixing frame is cylindrical, the diameter of the electromagnet fixing frame is larger than the diameter of a workpiece and is coaxial with the workpiece, and a plurality of electromagnets are uniformly distributed on the inner wall of the electromagnet fixing frame along the circumferential direction.
Electrolytic polishing device includes hollow bar copper, carbon fiber disc, negative pole line, positive pole line, electrolytic polishing corrosion appearance, peristaltic pump, hose, electrolyte case, hollow bar copper passes through the fixing base to be fixed on the second slip table of lathe, the peristaltic pump passes through hose connection electrolyte case, hollow bar copper passes through hose connection peristaltic pump, hollow bar copper passes through negative pole line connection electrolytic polishing corrosion appearance, work piece and electrolytic polishing corrosion appearance are connected to the positive pole line, the tip at hollow bar copper is installed to the carbon fiber disc.
The electrolytic bath recovery tank is arranged at the bottoms of the workpiece and the hollow copper rod.
The distance between the lower surface of the carbon fiber disc and the workpiece is 1.5mm-2.5 mm.
The workpiece is a non-magnetic conductive metal tube.
A polishing process of a polishing device for the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis comprises the following specific steps:
1) fixing the workpiece on a machine tool by using a triangular chuck, installing an insulating pad between the triangular chuck and the workpiece, and keeping the workpiece and the electromagnet grinding device coaxial;
2) magnetic grinding materials are placed in a workpiece, the first sliding table is moved to send the electromagnet grinding device to the initial position of workpiece grinding, and the second sliding table is moved to send the carbon fiber disc at the end part of the hollow copper pipe to the initial position of workpiece grinding;
3) starting a peristaltic pump and an electrolytic polishing corrosion instrument, wherein electrolyte enters the hollow copper pipe through the peristaltic pump and is sent into the workpiece through the hollow copper pipe; starting a machine tool motor to realize that the triangular chuck drives the workpiece to complete the rotary motion with the same rotating speed as the machine tool main shaft, and along with the rotation of the workpiece, the electrolyte forms a passive film on the processing surface of the inner wall of the workpiece;
4) electrifying the electromagnet to enable the magnetic grinding materials in the workpiece to form a magnetic brush, and grinding and removing the passive film by the magnetic brush along with the rotation of the workpiece;
5) and the first sliding table and the second sliding table are synchronously moved, grinding is carried out along the axial direction of the workpiece, and the part for realizing the grinding of the magnetic brush is a passivation film formed after electrolysis.
Compared with the prior art, the invention has the beneficial effects that:
the device adopts electromagnet composite electrolytic magnetic particle grinding. The electrolytic solution forms a layer of compact passive film on the inner surface of the workpiece, thereby reducing the hardness of the surface layer, improving the grinding efficiency and ensuring the grinding quality. The electromagnet control device selects a PLC to control the on-off and the magnitude of current, the current is led into electromagnetic poles distributed along the circumference, and the current is alternately switched on and off along the circumference direction in sequence to ensure that only one pair of opposite magnetic poles is generated during the processing. The electromagnetic field runs in sequence, and the workpiece performs circular motion in the direction opposite to the change direction of the magnetic field so as to ensure that the inner wall of the metal pipe is continuously processed. The magnetic abrasive in the magnetic field is pressed on the passive film formed on the pipe wall under the action of the magnetic field force, the surface of the workpiece is in non-rigid contact with the magnetic abrasive particles, and the abrasion of the cutting edge of the magnetic abrasive particles is reduced. The grinding material does circular motion along with the change of the magnetic field, the scratching and extruding action is completed, and the processing defects on the inner wall of the metal pipe are finally removed.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view showing the structure of the present invention.
Fig. 3 is a schematic top view of the structure of the present invention.
Fig. 4 is a schematic view of the connection between the hollow copper tube and the carbon fiber disc according to the present invention.
FIG. 5 is a cross-sectional view of a polishing location of a workpiece according to the present invention.
Fig. 6 is a schematic view showing the operation sequence of the electromagnet control portion of the present invention.
In the figure: 1-electrolytic polishing corrosion instrument 2-machine tool 3-lead screw 4-triangular chuck 5-electromagnet fixing frame 6-hand wheel I7-slide carriage a 8-workpiece 9-fixing seat 10-hand wheel II 11-slide carriage b 12-anode wire 13-cathode wire 14-insulating pad 15-first slide table 16-electrolyte recovery tank 17-second slide table 18-hollow copper tube 19-liquid outlet hose of peristaltic pump 20-placing rack 21-peristaltic pump 22-liquid inlet hose of peristaltic pump 23-electrolyte tank 24-carbon fiber disc 25-electromagnet 26-electrolyte.
Detailed Description
The present invention will be described in detail below, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-6, a polishing device for the inner wall of a non-magnetic conductive metal pipe by electromagnet composite electrolysis comprises a machine tool 2, an electromagnet grinding device and an electrolytic polishing device, wherein an electromagnet 25 on the electromagnet grinding device is sleeved outside a workpiece 8 and can be driven by a first sliding table 15 on the machine tool 2 to move axially along the workpiece 8, electrolyte in the electrolytic polishing device is fed into the workpiece 8 through a hollow copper pipe 18, and the hollow copper pipe 18 can be driven by a second sliding table 17 on the machine tool 2 to move axially along the workpiece 8.
The machine tool 2 is provided with an electromagnet grinding device and an electrolytic polishing device. The presence or absence of the magnetic force is controlled by controlling the on/off of the electromagnet 25. The magnetic poles are controlled by controlling the direction of the current passing through the electromagnet 25. The strength of the magnetic field is controlled by controlling the current passing through the electromagnet 25. The electrolytic polishing device forms a passivation film on the machined inner surface of the workpiece 8 through chemical reaction through electrolyte, so that the hardness of the inner surface layer of the workpiece 8 is reduced, the defects on the inner surface of the workpiece 8 are efficiently removed by the grinding materials under the action of the electromagnet 25, and the grinding quality and the grinding efficiency are greatly improved.
The electromagnet grinding device comprises an electromagnet fixing frame 5 and electromagnets 25, wherein the electromagnet fixing frame 5 is fixed on a first sliding table 15 on a machine tool 2, the electromagnet fixing frame 5 is cylindrical, the diameter of the electromagnet fixing frame is larger than the diameter of a workpiece 8 and is coaxially arranged with the workpiece 8, and a plurality of electromagnets 25 are uniformly distributed on the inner wall of the electromagnet fixing frame 5 along the circumferential direction.
The cyclic dynamic switching of the electromagnet groups can be realized by controlling the power on and off of the electromagnets 25. The different magnetic field strengths required for machining can be achieved by varying the current strength to the electromagnet 25. The electromagnet grinding device has a wider processing range and strong adaptability. The method can save resources and meet the processing requirements, and is simple to operate and easy to control.
Electrolytic polishing device includes hollow bar copper 18, carbon fiber disc 24, negative pole line 13, positive pole line 12, electrolytic polishing corrosion appearance 1, peristaltic pump 21, hose, electrolyte case 23, hollow bar copper 18 is fixed on the second slip table 17 of lathe 2 through fixing base 9 to axial motion can be carried out, and with treating processing non-magnetic conduction tubular metal resonator and keep coaxial, peristaltic pump 21 passes through hose connection electrolyte case 23, hollow bar copper 18 passes through hose connection peristaltic pump 21, hollow bar copper 18 connects electrolytic polishing corrosion appearance 1 through negative pole line 13, work piece 8 and electrolytic polishing corrosion appearance 1 are connected to positive pole line 12, the tip at hollow bar copper 18 is installed to carbon fiber disc 24.
And the device also comprises an electrolyte recovery tank 16, wherein the electrolyte recovery tank 16 is arranged at the bottom of the workpiece 8 and the hollow copper rod 18.
The distance between the lower surface of the carbon fiber disc 24 and the workpiece 8 is 1.5mm-2.5 mm. The carbon fiber disc 24 has the effects of wear resistance and corrosion resistance, and ensures that the electrolyte 26 can fully form a passive film on the surface to be processed, so that the working efficiency is improved.
The workpiece 8 is a non-magnetic conductive metal tube.
A polishing process of a polishing device for the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis comprises the following specific steps:
1) fixing an electromagnet grinding device on a first sliding table 15, ensuring that the electromagnet grinding device is concentric with a main shaft of a machine tool 2, fixing a workpiece 8 on the machine tool 2 by using a triangular chuck 4, installing an insulating pad 14 between the triangular chuck 4 and the workpiece 8, and keeping the workpiece 8 and the electromagnet grinding device concentric;
mounting a fixed seat 9 on a second sliding table 17 of the machine tool 2, mounting a hollow copper tube 18 on the fixed seat 9, connecting a cathode wire 13 of the electrolytic polishing corrosion instrument 1 with the inner surface of a workpiece 8, and connecting an anode wire 12 with the hollow copper tube 18;
the peristaltic pump 21 is arranged on the placing rack 20, and the electrolyte tank 23 is arranged on the ground beside the placing rack 20. A liquid inlet hose 22 of the peristaltic pump is connected with an electrolyte tank 23, and a liquid outlet hose 19 of the peristaltic pump is connected with the hollow copper pipe 18.
2) Filling an appropriate electrolyte into an electrolyte tank 23, placing a magnetic abrasive into the workpiece 8, moving a first sliding table 15 to send an electromagnet grinding device to the initial grinding position of the workpiece 8, moving a second sliding table 17 to send a carbon fiber disc 24 at the end part of a hollow copper tube 18 to the initial grinding position of the workpiece 8, and adjusting a fixed seat 9 to enable the carbon fiber disc 24 connected with the hollow copper tube 18 to keep an appropriate distance from the surface to be processed of the workpiece 8; the height of the fixing base 9 can be adjusted by increasing or decreasing the number of the spacers.
3) Starting the peristaltic pump 21 and the electrolytic polishing corrosion instrument 1, wherein the electrolyte 26 enters the hollow copper tube 18 through the peristaltic pump 21 and is sent into the workpiece 8 through the hollow copper tube 18; and starting a motor of the machine tool 2 to realize that the triangular chuck 4 drives the workpiece 8 to complete the rotary motion with the same rotating speed as the main shaft of the machine tool 2, and along with the rotation of the workpiece 8, the electrolyte 26 forms a passivation film on the processing surface of the inner wall of the workpiece 8.
4) The electromagnet 25 is electrified to enable the magnetic grinding materials in the workpiece 8 to form a magnetic brush, and the magnetic brush starts to grind and remove the passivation film along with the rotation of the workpiece 8;
5) the adjusting screw hand wheel (hand wheel I6, hand wheel II 10) drives the slide carriage box a7 and the slide carriage box b11 to move, the first sliding table 15 and the second sliding table 17 are moved synchronously, the axial direction of the workpiece 8 is ground, and the part ground by the magnetic brush is a passivation film formed after electrolysis, so that the processing efficiency and the processing quality are ensured, and the loss of grinding materials is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a burnishing device that compound electrolysis of electro-magnet is used for non-magnetic conductive metal pipe inner wall, a serial communication port, including lathe, electro-magnet grinder, electropolishing device, the electro-magnet suit on the electro-magnet grinder is outside at the work piece to can follow work piece axial displacement through the drive of first slip table on the lathe, inside electrolyte among the electropolishing device sent into the work piece through hollow copper pipe, hollow copper pipe can be through the drive of second slip table on the lathe along work piece axial displacement.
2. The polishing device for the inner wall of the non-magnetic conductive metal pipe by electromagnet composite electrolysis as claimed in claim 1, wherein the electromagnet grinding device comprises an electromagnet fixing frame and an electromagnet, the electromagnet fixing frame is fixed on a first sliding table on a machine tool, the electromagnet fixing frame is cylindrical, the diameter of the electromagnet fixing frame is larger than that of the workpiece and is arranged coaxially with the workpiece, and a plurality of electromagnets are uniformly distributed on the inner wall of the electromagnet fixing frame along the circumferential direction.
3. The polishing device for the inner wall of the non-magnetic conductive metal pipe through composite electrolysis of the electromagnet as claimed in claim 1, wherein the electrolytic polishing device comprises a hollow copper rod, a carbon fiber disc, a cathode wire, an anode wire, an electrolytic polishing corrosion instrument, a peristaltic pump, a hose and an electrolyte tank, the hollow copper rod is fixed on a second sliding table of a machine tool through a fixing seat, the peristaltic pump is connected with the electrolyte tank through the hose, the hollow copper rod is connected with the peristaltic pump through the hose, the hollow copper rod is connected with the electrolytic polishing corrosion instrument through the cathode wire, the anode wire is connected with a workpiece and the electrolytic polishing corrosion instrument, and the carbon fiber disc is installed at the end part of the hollow copper rod.
4. The polishing device for the inner wall of the non-magnetic conductive metal pipe by the composite electrolysis of the electromagnet as claimed in claim 3, further comprising an electrolyte recovery tank, wherein the electrolyte recovery tank is arranged at the bottom of the workpiece and the hollow copper rod.
5. The polishing device for the inner wall of the non-magnetic conductive metal pipe by electromagnet composite electrolysis as claimed in claim 3, wherein the distance between the lower surface of the carbon fiber disc and the workpiece is 1.5mm-2.5 mm.
6. The device for polishing the inner wall of a non-magnetic conductive metal tube by electromagnet composite electrolysis according to any one of claims 1 to 5, wherein the workpiece is a non-magnetic conductive metal tube.
7. The polishing process of the polishing device for the inner wall of the non-magnetic metal tube by electromagnet composite electrolysis according to any one of claims 1 to 6, which is characterized by comprising the following steps of:
1) fixing the workpiece on a machine tool by using a triangular chuck, installing an insulating pad between the triangular chuck and the workpiece, and keeping the workpiece and the electromagnet grinding device coaxial;
2) magnetic grinding materials are placed in a workpiece, the first sliding table is moved to send the electromagnet grinding device to the initial position of workpiece grinding, and the second sliding table is moved to send the carbon fiber disc at the end part of the hollow copper pipe to the initial position of workpiece grinding;
3) starting a peristaltic pump and an electrolytic polishing corrosion instrument, wherein electrolyte enters the hollow copper pipe through the peristaltic pump and is sent into the workpiece through the hollow copper pipe; starting a machine tool motor to realize that the triangular chuck drives the workpiece to complete the rotary motion with the same rotating speed as the machine tool main shaft, and along with the rotation of the workpiece, the electrolyte forms a passive film on the processing surface of the inner wall of the workpiece;
4) electrifying the electromagnet to enable the magnetic grinding materials in the workpiece to form a magnetic brush, and grinding and removing the passive film by the magnetic brush along with the rotation of the workpiece;
5) and the first sliding table and the second sliding table are synchronously moved, grinding is carried out along the axial direction of the workpiece, and the part for realizing the grinding of the magnetic brush is a passivation film formed after electrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124882.4A CN112123031A (en) | 2020-10-20 | 2020-10-20 | Device and process for polishing inner wall of non-magnetic-conductive metal pipe through electromagnet composite electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124882.4A CN112123031A (en) | 2020-10-20 | 2020-10-20 | Device and process for polishing inner wall of non-magnetic-conductive metal pipe through electromagnet composite electrolysis |
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| Publication Number | Publication Date |
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| CN112123031A true CN112123031A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011124882.4A Pending CN112123031A (en) | 2020-10-20 | 2020-10-20 | Device and process for polishing inner wall of non-magnetic-conductive metal pipe through electromagnet composite electrolysis |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692716A (en) * | 2021-01-26 | 2021-04-23 | 山东理工大学 | Inner surface magnetic field auxiliary finishing device and method based on controllable magnetic field |
| CN113997189A (en) * | 2021-12-31 | 2022-02-01 | 太原科技大学 | Electrolytic and mechanical composite grinding device and method for inner diameter of long straight pipe |
| CN113997188A (en) * | 2021-12-31 | 2022-02-01 | 太原科技大学 | Precise pipe electrolysis and mechanical composite polishing device and method |
| CN114921842A (en) * | 2022-03-24 | 2022-08-19 | 南京航空航天大学 | Device and method for plasma electrolytic polishing of inner wall of large rotary part |
-
2020
- 2020-10-20 CN CN202011124882.4A patent/CN112123031A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692716A (en) * | 2021-01-26 | 2021-04-23 | 山东理工大学 | Inner surface magnetic field auxiliary finishing device and method based on controllable magnetic field |
| CN113997189A (en) * | 2021-12-31 | 2022-02-01 | 太原科技大学 | Electrolytic and mechanical composite grinding device and method for inner diameter of long straight pipe |
| CN113997188A (en) * | 2021-12-31 | 2022-02-01 | 太原科技大学 | Precise pipe electrolysis and mechanical composite polishing device and method |
| CN113997189B (en) * | 2021-12-31 | 2022-04-01 | 太原科技大学 | Electrolytic and mechanical composite grinding device and method for inner diameter of long straight pipe |
| CN114921842A (en) * | 2022-03-24 | 2022-08-19 | 南京航空航天大学 | Device and method for plasma electrolytic polishing of inner wall of large rotary part |
| CN114921842B (en) * | 2022-03-24 | 2023-09-29 | 南京航空航天大学 | Device and method for polishing inner wall of large rotary part through plasma electrolysis |
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