CN114888381A - Pulse electrolysis one-step trepanning processing blade and surface microtexture device and method thereof - Google Patents
Pulse electrolysis one-step trepanning processing blade and surface microtexture device and method thereof Download PDFInfo
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- CN114888381A CN114888381A CN202210695493.XA CN202210695493A CN114888381A CN 114888381 A CN114888381 A CN 114888381A CN 202210695493 A CN202210695493 A CN 202210695493A CN 114888381 A CN114888381 A CN 114888381A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a pulse electrolysis one-step nesting processing blade and a surface microtexture device and a method thereof, belonging to the technical field of electrolytic processing, wherein the device comprises a machine tool body, an electrolytic processing control system, an electrolyte supply system, a Z-direction reciprocating device, a working electrode system, a workpiece clamping system and an electrolytic processing pulse power supply, the working electrode system comprises a cathode plate, a cathode body, a microtexture manufacturing micro-cathode array, a left cylinder, a right cylinder and a cylinder push rod, the method is to process the blade and the surface microtexture thereof by pulse electrolysis one-step nesting, the invention improves the cooperative design method of the cathode plate and the cathode body for electrolytic processing, realizes the processing of the profile of the blade with equal cross section and the manufacturing of the microtexture of the front edge and the rear edge of the blade by the combination of the cathode plate and the cathode body, realizes the processing of the whole blade and the in-situ manufacturing of the microtexture of the surface of the blade by the same electrolytic equipment, the invention has obvious effect on improving the surface quality and service performance of the blade.
Description
Technical Field
The invention belongs to the technical field of electrolytic machining, and particularly relates to a pulse electrolysis one-step trepanning machining blade and a surface microtexture device and method thereof.
Background
The electrolytic machining can machine various conductive materials which are difficult to machine, and the anode corrosion mechanism of the electrolytic machining determines the protection effect on the working cathode, so that the manufacturing of large-batch parts can be realized under the condition of not replacing the working cathode. The electrochemical machining technology is one of the important technologies of non-contact manufacturing, non-recast manufacturing and non-mechanical stress manufacturing, and is widely applied to the fields of aerospace, deep sea exploration and the like. The blade is a core component of an aeroengine, the electrolytic trepanning processing is an electrolytic processing form aiming at the manufacturing of the uniform cross section of the integral single blade, the electrolytic processing does not have cutting force, is more suitable for the manufacturing of the thin-wall part of the blade, and has remarkable advantages in the aspects of one-step forming, cutting force elimination, processing precision improvement, surface integrity improvement and the like. The invention relates to a self-electrolysis trepanning processing technology, which develops a large amount of research work of one-step processing and forming equipment and process of integral blades in academic and engineering circles to date, and is practically applied to the manufacture of conductive materials difficult to process.
The manufacturing method of the surface microtexture mainly comprises the following steps: the method comprises a reactive ion etching technology, an imprinting technology, a laser surface texture technology, a grinding technology, an elliptical vibration assisted cutting technology and the like, wherein the laser processing technology is simple to operate, high in processing precision and high in speed, and is most widely applied to a method for preparing the surface texture. However, most of the above techniques require secondary processing. The surface textures manufactured at the positions of the blade basin and the blade back of the integral blade have the obvious advantages of resistance reduction, friction reduction, noise reduction, vibration reduction, pneumatic performance increase and the like. At present, the texture on the surface of the blade can be manufactured by numerical control five-axis milling, but the cutting stress still exists in the technology. The micro texture is directly manufactured on the forming surface through electrolytic machining, the micro texture can be processed along with the forming, no cutting force exists, and the purpose of manufacturing the surface texture is achieved.
Through analysis, a novel technical scheme is needed in the prior art to solve the problems of direct integral forming of the thin-wall blade and efficient processing of the surface textures of the front edge and the rear edge of the thin-wall blade.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the device and the method for processing the thin-wall blade by pulse electrolysis one-step trepanning are provided for solving the problems of direct and integrated forming of the thin-wall blade and efficient processing of the surface textures of the front edge and the rear edge of the thin-wall blade. The combination of the cathode sheet and the cathode body is utilized to realize the processing of the blade profile with equal cross section and the manufacturing of the microtexture of the surface of the front edge and the rear edge of the blade. The invention has obvious effect on improving the surface quality and service performance of the blade.
In order to solve the problems, the invention adopts the following technical scheme: the device comprises a machine tool body, an electrolytic machining control system, an electrolyte supply system, a Z-direction reciprocating device, a working electrode system, a workpiece clamping system and an electrolytic machining pulse power supply, wherein the machine tool body comprises a plane workbench and a vertical plate, the vertical plate is fixedly arranged on one side of the plane workbench, and the vertical plate and the plane workbench are vertically arranged; the electrolyte supply system is fixedly arranged on the vertical plate and is connected with the electrolytic machining control system; the Z-direction reciprocating device is connected with an electrolytic machining control system; the working electrode system is connected with the electrolytic machining control system, the working electrode system is installed at the lower part of the Z-direction reciprocating device, regular reciprocating motion of the whole working electrode system along the Z-axis direction is realized through the Z-direction reciprocating device, the workpiece clamping system is used for clamping an anode workpiece, and the workpiece clamping system is positioned right below the working electrode system; the method is characterized in that:
the working electrode system comprises a cathode sheet, a cathode body, a micro-texture manufacturing micro-cathode array, a left air cylinder, a right air cylinder and an air cylinder push rod, wherein the cathode sheet is connected with the negative electrode of an electrochemical machining pulse power supply, the cathode sheet is installed on the lower bottom surface of the cathode body through a screw rod and a nut in a matching mode, a forming hole with the same outline as an anode workpiece is formed in the middle of the cathode sheet, and the forming hole is a through hole; the cathode body is provided with a hollow cavity, the hollow cavity corresponds to the position of a forming hole in the middle of the cathode sheet, array holes matched with array copper columns in the micro-texture manufactured micro-cathode array are formed in the cavity walls on the two sides of the hollow cavity of the cathode body, and the array holes are through holes; the number of the micro-texture manufacturing micro-cathode arrays is two, the two micro-texture manufacturing micro-cathode arrays are respectively arranged on the left side and the right side of the outer part of the cathode body, each micro-texture manufacturing micro-cathode array comprises a substrate, array copper columns are arranged on the substrate in an array mode, and the array copper columns are connected with the negative electrode of the electrochemical machining pulse power supply; the left air cylinder and the right air cylinder are electrically connected with the electrolytic machining control system respectively, the number of the air cylinder push rods is two, the front ends of the two air cylinder push rods are connected with the left air cylinder and the right air cylinder respectively, the tail ends of the two air cylinder push rods are installed on one side, back to the cathode body, of the substrate of the two micro-texture manufacturing micro-cathode arrays respectively, and the two air cylinder push rods are driven by the left air cylinder and the right air cylinder respectively, so that the array copper columns on the two micro-texture manufacturing micro-cathode arrays can reciprocate along corresponding array holes in the cavity wall of the cathode body.
As a preferable scheme of the invention, the column diameter of the array copper column is 1 mm.
As a preferred scheme of the invention, the workpiece clamping system comprises a rotary table, a conversion head and a clamping seat, wherein the rotary table is arranged on a plane workbench through a bolt, and the conversion head is arranged on the rotary table through a bolt; the clamping seat bottom surface is installed on the conversion head, and the clamping seat is used for the centre gripping fixed positive pole work piece.
The method for processing the blade and the surface microtexture of the blade by using the pulse electrolysis one-step nesting is characterized in that the method utilizes the pulse electrolysis one-step nesting to process the blade and the surface microtexture device thereof to simultaneously process the blade outline and the blade surface microtexture, and specifically comprises the following steps which are sequentially carried out:
firstly, preparing an anode workpiece to be processed, and turning on a power supply of the device;
step two, mounting a cathode sheet on a cathode body, connecting the cathode sheet with the negative electrode of an electrochemical machining pulse power supply, and simultaneously connecting an array copper column in the microtexture manufacturing micro-cathode array with the negative electrode of the electrochemical machining pulse power supply;
thirdly, mounting the anode workpiece on a workpiece clamping system and connecting the anode workpiece with the positive electrode of the electrochemical machining pulse power supply;
regulating the position of the Z-direction reciprocating device through an electrolytic machining control system, and setting the initial machining gap between the cathode plate and the anode workpiece to be 0.5 mm;
step five, setting processing parameters in an electrolytic processing control system, applying a processing voltage of 16V between a working electrode system and an anode workpiece, setting the feeding speed of a Z-direction reciprocating device to be 0.3mm/min, and setting the electrolyte pressure to be 300kPa, and carrying out electrolytic processing on anode workpiece trepanning;
step six, after the contour of the anode workpiece is machined, performing finish machining on the bottom surface of the anode workpiece;
step seven, after finishing, controlling the left air cylinder and the right air cylinder to push two air cylinder push rods, so that the two air cylinder push rods drive the micro-texture manufacturing micro-cathode arrays on the left side and the right side to move relatively, the micro-texture manufacturing micro-cathode arrays are gradually close to the front edge and the rear edge of the anode workpiece, and the distance of the array copper columns of the micro-texture manufacturing micro-cathode arrays extending into the cathode body exceeds the inner surface of the cathode body by 50 microns for processing;
step eight, performing surface micro-texture machining on the machined and formed anode workpiece, controlling the left air cylinder and the right air cylinder to pull back the two air cylinder push rods after the surface micro-texture machining of the anode workpiece is finished, and enabling micro-cathode arrays manufactured by the micro-texture on the left side and the right side to be far away from the surfaces of the front edge and the rear edge of the anode workpiece; and returning the Z-direction reciprocating device to the zero point, and turning off the power supply of the device.
Through the design scheme, the invention can bring the following beneficial effects:
1. the processing range of the general electrolysis equipment is expanded, and the processing efficiency of the machine tool is improved.
2. The integral blade machining and the in-situ manufacturing of the micro-texture on the surface of the blade are realized through the same electrolytic equipment, the problems of integral blade forming and surface micro-texture integrated machining are solved, the problem of accumulated errors caused by secondary clamping is effectively solved, and the manufacturing efficiency of the integrated blade is effectively improved.
3. The method has the advantages that the method improves the cooperative design method of the cathode sheet and the cathode body for the electrolytic machining, realizes the machining of the contour of the blade with the equal cross section and the manufacturing of the micro texture of the surface of the front edge and the rear edge of the blade by utilizing the combination of the cathode sheet and the cathode body, and has remarkable effect on improving the surface quality and the service performance of the blade.
Drawings
The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of a pulse electrolysis one-step trepanning processing blade and a surface microtexture device thereof;
FIG. 2 is a partially enlarged schematic view of a pulse electrolysis one-step trepanning processing blade and a surface microtexture device thereof;
FIG. 3 is a state when the surface microtexture device is not in operation;
fig. 4 shows the operation of the surface microtexture device.
In the figure: 1-machine tool body, 2-Z direction reciprocating device, 3-working electrode system, 4-anode workpiece, 5-workpiece clamping system, 6-electrolytic machining pulse power supply, 101-plane workbench, 102-vertical plate, 301-cathode sheet, 302-cathode body, 303-micro-texture manufacturing micro-cathode array, 304-left air cylinder, 305-right air cylinder, 306-air cylinder push rod, 501-rotary table, 502-conversion head and 503-clamping seat.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. As will be appreciated by those skilled in the art. The following detailed description is illustrative rather than limiting in nature and is not intended to limit the scope of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. Well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the pulse electrolysis one-step trepanning processing blade and the surface microtexture device thereof comprise a machine tool body 1, an electrolytic processing control system, an electrolyte supply system, a Z-direction reciprocating device 2, a working electrode system 3, a workpiece clamping system 5 and an electrolytic processing pulse power supply 6, wherein the machine tool body 1 comprises a plane workbench 101 and a vertical plate 102, the vertical plate 102 is fixedly arranged on one side of the plane workbench 101 and is vertically arranged, so that a high-precision processing effect is ensured; the electrolyte supply system is fixedly arranged on the vertical plate 102 and is connected with the electrolytic machining control system; the Z-direction reciprocating device 2 is connected with an electrolytic machining control system, the working electrode system 3 is connected with the electrolytic machining control system, the working electrode system 3 is installed on the lower portion of the Z-direction reciprocating device 2, regular reciprocating motion of the whole working electrode system 3 along the Z-axis direction is achieved through the Z-direction reciprocating device 2, the workpiece clamping system 5 is used for clamping an anode workpiece 4, and the workpiece clamping system 5 is located below the working electrode system 3. The electrolyte supply system and the electrolytic processing control system, which are not shown in the drawings, belong to the prior art and will not be described in detail herein.
The working electrode system 3 moves along with the movement of the Z-direction reciprocating device 2; the working electrode system 3 comprises a cathode sheet 301, a cathode body 302, a micro-texture manufacturing micro-cathode array 303, a left air cylinder 304, a right air cylinder 305 and an air cylinder push rod 306, wherein a forming hole with the same contour as that of the anode workpiece 4 is formed in the middle of the cathode sheet 301, the forming hole is a through hole, the forming hole formed in the cathode sheet 301 can realize contour processing of the anode workpiece 4, the cathode body 302 is provided with a hollow cavity, and the processed area of the anode workpiece 4 enters the hollow cavity of the cathode body 302 along with the increase of the processing height of the anode workpiece 4 during processing; the cathode sheet 301 is installed on the lower bottom surface of the cathode body 302 through the matching of a screw and a nut, the cavity walls on two sides of the hollow cavity of the cathode body 302 are provided with array holes matched with array copper columns in the micro-texture manufacturing micro-cathode arrays 303, the number of the micro-texture manufacturing micro-cathode arrays 303 is two, the two micro-texture manufacturing micro-cathode arrays 303 are respectively arranged on the left side and the right side of the cathode body 302, each micro-texture manufacturing micro-cathode array 303 comprises a substrate, array copper columns which are arranged in an array mode are arranged on the substrate, the column diameter of each array copper column is 1mm, and the array copper columns of the micro-texture manufacturing micro-cathode arrays 303 can reciprocate along the array holes of the cavity wall of the cathode body 302 under the action of external force; the number of the cylinder push rods 306 is two, the two cylinder push rods 306 are respectively used as execution components of the left cylinder 304 and the right cylinder 305, and the tail ends of the cylinder push rods 306 are installed on one side, back to the cathode body 302, of the substrate of the micro-texture manufacturing micro-cathode array 303, so that the power of the left cylinder 304 and the right cylinder 305 can be transmitted to the micro-texture manufacturing micro-cathode array 303. The left air cylinder 304 and the right air cylinder 305 are used for pushing the microtextured manufacturing micro-cathode array 303 to move along the array holes on the cavity wall of the cathode body 302 by controlling the air cylinder push rod 306 to move telescopically.
The workpiece clamping system 5 comprises a rotary table 501, a conversion head 502 and a clamping seat 503, wherein the rotary table 501 is directly installed on the plane workbench 1 through bolts, the conversion head 502 is installed on the rotary table 501 through bolts to realize the installation of anode workpieces 4 with different shapes, the bottom surface of the clamping seat 503 is installed on the conversion head 502, and the anode workpieces 4 are fixedly installed on the clamping seat 503 through clamping.
The working method of the pulse electrolysis one-step jacking processing blade and the surface micro-texture device thereof adopts a mode of simultaneously processing the blade contour and the blade surface micro-texture by adopting a pulse electrolysis method, and comprises the following steps which are sequentially carried out:
checking a working environment, preparing an anode workpiece 4 to be processed, cleaning the anode workpiece by using an ultrasonic cleaning machine, turning on a power supply of the device, and detecting whether each part of the device is normal;
step two, mounting the cathode sheet 301 on the cathode body 302, connecting the cathode sheet with the negative electrode of the electrochemical machining pulse power supply 6, and simultaneously connecting the array copper column in the microtexture manufacturing micro-cathode array 303 with the negative electrode of the electrochemical machining pulse power supply 6;
thirdly, mounting the anode workpiece 4 on the clamping seat 503 and connecting the anode workpiece with the positive electrode of the electrochemical machining pulse power supply 6;
regulating the Z-direction reciprocating device 2 through an electrolytic machining control system, and setting the initial machining gap between the cathode sheet 301 and the anode workpiece 4 to be 0.5 mm;
step five, setting processing parameters in an electrolytic processing control system, applying a processing voltage of 16V between a working electrode system 3 and an anode workpiece 4, setting the feeding speed of a Z-direction reciprocating device 2 to be 0.3mm/min, and setting the electrolyte pressure to be 300kPa, and performing nesting electrolytic processing on the anode workpiece 4;
after finishing the contour machining of the anode workpiece 4, performing finish machining on the bottom surface of the anode workpiece 4 to enable the bottom surface to meet the precision requirement;
seventhly, pushing a cylinder push rod 306 by a left cylinder 304 and a right cylinder 305 in the working electrode system 3 to force the micro-texture manufacturing micro-cathode arrays 303 on the left side and the right side to move relatively and gradually approach to the front edge and the rear edge of the anode workpiece 4, wherein the distance of the micro-texture manufacturing micro-cathode arrays 303 extending out of the cathode body 302 exceeds the inner surface of the cathode body 302 by 50 microns, and processing;
step eight, performing surface micro-texture machining on the machined and formed anode workpiece 4, controlling the left air cylinder 304 and the right air cylinder 305 to pull back the air cylinder push rod 306 after the surface micro-texture machining of the anode workpiece 4 is finished, and forcing the micro-texture manufacturing micro-cathode arrays 303 on the left side and the right side to be far away from the front edge surface and the rear edge surface of the anode workpiece 4; the Z-direction reciprocating device 2 is returned to the zero point, and the device power is turned off.
In conclusion, the pulse electrolysis one-step nesting processing blade and the surface micro-texture device and method thereof solve the problems of integral forming and surface micro-texture integrated processing of the blade by modifying the cathode for electrolytic nesting processing, effectively solve the problem of accumulated error caused by secondary clamping, effectively improve the manufacturing efficiency of the integrated blade and provide an effective way for manufacturing the conductive material blade which is difficult to process.
Claims (4)
1. The device comprises a machine tool body (1), an electrolytic machining control system, an electrolyte supply system, a Z-direction reciprocating motion device (2), a working electrode system (3), a workpiece clamping system (5) and an electrolytic machining pulse power supply (6), wherein the machine tool body (1) comprises a plane workbench (101) and a vertical plate (102), and the vertical plate (102) is fixedly arranged on one side of the plane workbench (101) and is vertically arranged; the electrolyte supply system is fixedly arranged on the vertical plate (102) and is connected with the electrolytic machining control system; the Z-direction reciprocating device (2) is connected with an electrolytic machining control system; the working electrode system (3) is connected with the electrolytic machining control system, the working electrode system (3) is installed on the lower portion of the Z-direction reciprocating device (2), regular reciprocating motion of the whole working electrode system (3) along the Z-axis direction is achieved through the Z-direction reciprocating device (2), the workpiece clamping system (5) is used for clamping an anode workpiece (4), and the workpiece clamping system (5) is located right below the working electrode system (3); the method is characterized in that:
the working electrode system (3) comprises a cathode sheet (301), a cathode body (302), a micro-texture manufacturing micro-cathode array (303), a left air cylinder (304), a right air cylinder (305) and an air cylinder push rod (306), wherein the cathode sheet (301) is connected with a negative electrode of an electrochemical machining pulse power supply (6), the cathode sheet (301) is installed on the lower bottom surface of the cathode body (302) through a screw rod and a nut in a matching mode, a forming hole with the same outline as that of an anode workpiece (4) is formed in the middle of the cathode sheet (301), and the forming hole is a through hole; the cathode body (302) is provided with a hollow cavity, the hollow cavity corresponds to the forming hole in the middle of the cathode sheet (301), the cavity walls on the two sides of the hollow cavity of the cathode body (302) are provided with array holes matched with array copper columns in the micro-texture manufactured micro-cathode array (303), and the array holes are through holes; the number of the micro-texture manufacturing micro-cathode arrays (303) is two, the two micro-texture manufacturing micro-cathode arrays (303) are respectively arranged on the left side and the right side of the outer part of the cathode body (302), each micro-texture manufacturing micro-cathode array (303) comprises a substrate, array copper columns which are arranged in an array mode are arranged on the substrate, and the array copper columns are connected with the negative electrode of the electrochemical machining pulse power supply (6); the left air cylinder (304) and the right air cylinder (305) are electrically connected with an electrolytic machining control system respectively, the number of the air cylinder push rods (306) is two, the front ends of the two air cylinder push rods (306) are connected with the left air cylinder (304) and the right air cylinder (305) respectively, the tail ends of the two air cylinder push rods (306) are installed on one side, back to the cathode body (302), of a substrate of the two micro-texture manufacturing micro-cathode arrays (303), and the two air cylinder push rods (306) are driven by the left air cylinder (304) and the right air cylinder (305) respectively, so that array copper columns on the two micro-texture manufacturing micro-cathode arrays (303) can reciprocate along corresponding array holes in the cavity wall of the cathode body (302).
2. The pulse electrolysis one-step trepanning processing blade and the surface microtexture device thereof according to claim 1 are characterized in that: the column diameter of array copper post is 1 mm.
3. The pulse electrolysis one-step trepanning processing blade and the surface microtexture device thereof according to claim 1 are characterized in that: the workpiece clamping system (5) comprises a rotary table (501), a conversion head (502) and a clamping seat (503), wherein the rotary table (501) is installed on the plane workbench (101) through a bolt, and the conversion head (502) is installed on the rotary table (501) through a bolt; the bottom surface of the clamping seat (503) is arranged on the conversion head (502), and the clamping seat (503) is used for clamping and fixing the anode workpiece (4).
4. The method for processing the blade and the surface microtexture thereof by the pulse electrolysis one-step nesting is characterized in that the method utilizes the pulse electrolysis one-step nesting processing blade and the surface microtexture device thereof as claimed in any one of claims 1 to 3 to simultaneously process the blade outline and the blade surface microtexture, and specifically comprises the following steps which are sequentially carried out:
step one, preparing an anode workpiece (4) to be processed, and turning on a power supply of the device;
step two, mounting a cathode sheet (301) on a cathode body (302), connecting the cathode sheet with the negative electrode of an electrochemical machining pulse power supply (6), and simultaneously connecting an array copper column in the microtexture manufacturing micro-cathode array (303) with the negative electrode of the electrochemical machining pulse power supply (6);
thirdly, the anode workpiece (4) is arranged on the workpiece clamping system (5) and is connected with the anode of the electrochemical machining pulse power supply (6);
regulating the position of the Z-direction reciprocating device (2) through an electrolytic machining control system, and setting the initial machining gap between the cathode sheet (301) and the anode workpiece (4) to be 0.5 mm;
fifthly, setting processing parameters in the electrolytic processing control system, applying a processing voltage of 16V between the working electrode system (3) and the anode workpiece (4), setting the feeding speed of the Z-direction reciprocating device (2) to be 0.3mm/min and the electrolyte pressure to be 300kPa, and carrying out nesting electrolytic processing on the anode workpiece (4);
step six, after the contour of the anode workpiece (4) is machined, performing finish machining on the bottom surface of the anode workpiece (4);
seventhly, after finishing, controlling a left air cylinder (304) and a right air cylinder (305) to push two air cylinder push rods (306), so that the two air cylinder push rods (306) drive the microtexture manufacturing micro-cathode arrays (303) on the left side and the right side to move relatively, the microtexture manufacturing micro-cathode arrays gradually approach to the front edge and the rear edge of the anode workpiece (4), and the distance that array copper columns of the microtexture manufacturing micro-cathode arrays (303) extend into the cathode body (302) exceeds the inner surface of the cathode body (302) by 50 microns for machining;
eighthly, carrying out surface micro-texture machining on the machined and formed anode workpiece (4), controlling the left air cylinder (304) and the right air cylinder (305) to pull back the two air cylinder push rods (306) after the surface micro-texture machining of the anode workpiece (4) is finished, and enabling the micro-cathode arrays (303) manufactured by the micro-textures on the left side and the right side to be far away from the front edge surface and the rear edge surface of the anode workpiece (4); and returning the Z-direction reciprocating device (2) to a zero point, and turning off the power supply of the device.
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| CN202210695493.XA CN114888381B (en) | 2022-06-20 | 2022-06-20 | Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof |
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| CN202210695493.XA CN114888381B (en) | 2022-06-20 | 2022-06-20 | Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof |
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| CN103252543A (en) * | 2013-05-20 | 2013-08-21 | 南京航空航天大学 | Method and device for electrochemical machining of ultra-thin workpiece |
| CN110102846A (en) * | 2019-06-06 | 2019-08-09 | 浙江工业大学 | The micro- texture radial vibration assisted electrolysis processing method of thin-wall part revolving body inner wall and device |
| CN110935968A (en) * | 2019-12-04 | 2020-03-31 | 合肥工业大学 | Integral electrolytic machining method and electrolytic tool for blisk |
| CN113560685A (en) * | 2021-07-05 | 2021-10-29 | 南京航空航天大学 | Cross-blade cathode pulse state trepanning electrochemical machining device and method |
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2022
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006305645A (en) * | 2005-04-26 | 2006-11-09 | Ee P C Aero Specialty Kk | Electrolytic processing method, device, and electrode |
| CN103252543A (en) * | 2013-05-20 | 2013-08-21 | 南京航空航天大学 | Method and device for electrochemical machining of ultra-thin workpiece |
| CN110102846A (en) * | 2019-06-06 | 2019-08-09 | 浙江工业大学 | The micro- texture radial vibration assisted electrolysis processing method of thin-wall part revolving body inner wall and device |
| CN110935968A (en) * | 2019-12-04 | 2020-03-31 | 合肥工业大学 | Integral electrolytic machining method and electrolytic tool for blisk |
| CN113560685A (en) * | 2021-07-05 | 2021-10-29 | 南京航空航天大学 | Cross-blade cathode pulse state trepanning electrochemical machining device and method |
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