CN114888381B - Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof - Google Patents

Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof Download PDF

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CN114888381B
CN114888381B CN202210695493.XA CN202210695493A CN114888381B CN 114888381 B CN114888381 B CN 114888381B CN 202210695493 A CN202210695493 A CN 202210695493A CN 114888381 B CN114888381 B CN 114888381B
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cathode
texture
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cylinder
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CN114888381A (en
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任万飞
许金凯
陶金
于化东
王曼妃
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Changchun University of Science and Technology
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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
    • 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
    • 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

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Abstract

The invention discloses a pulse electrolysis one-step trepanning processing blade and a surface micro-texture device and 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 motion 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 micro-texture manufacturing micro-cathode array, a left cylinder, a right cylinder and a cylinder push rod.

Description

Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof
Technical Field
The invention belongs to the technical field of electrolytic machining, and particularly relates to a pulse electrolysis one-step trepanning processing blade and a surface micro-texture device and method thereof.
Background
The electrolytic machining can be used for machining various difficult-to-machine conductive materials, and the anode corrosion mechanism determines the protection effect on the working cathode, so that the manufacturing of a large number of parts can be realized under the condition that the working cathode is not replaced. The electrolytic processing technology is one of important technologies of non-contact manufacturing, non-recast layer manufacturing and non-mechanical stress manufacturing, and is widely applied to the fields of aerospace, deep sea detection and the like. The blade is a core component of an aeroengine, electrolytic trepanning is an electrolytic machining mode for manufacturing the whole single blade with equal cross section, the electrolytic machining does not have cutting force, and the electrolytic machining method is suitable for manufacturing the thin-wall part of the blade, and has remarkable advantages in the aspects of one-step forming, cutting force elimination, machining precision improvement, surface integrity improvement and the like. The invention of the self-electrolysis trepanning processing technology has developed a great deal of research work of one-step processing and forming equipment and technology of integral blades in academia and engineering circles so far, and has been practically applied to the manufacture of difficult-to-process conductive materials.
The manufacturing method of the surface micro-texture mainly comprises the following steps: reactive ion etching technology, stamping technology, laser surface texture technology, grinding processing, elliptical vibration assisted cutting processing technology and the like, wherein the laser processing technology is simple to operate, high in processing precision and high in processing speed, and is most widely applied in a method for preparing surface texture. Most of the above techniques require secondary processing. The surface texture manufactured at the leaf basin and the leaf back of the integral blade has the remarkable advantages of reducing resistance, reducing friction, noise and vibration, increasing aerodynamic performance and the like. At present, the manufacturing of the texture on the surface of the blade can be finished by numerical control five-axis milling, but the technology still has cutting stress. The micro-texture is directly manufactured on the forming surface through electrolytic machining, so that the micro-texture can be processed along with the forming surface, and the cutting force is not generated, thereby achieving the purpose of manufacturing the surface texture.
According to 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 front edge and rear edge surface textures of the thin-wall blade.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in order to solve the problem of direct integral forming of the thin-wall blade and high-efficiency processing of the front edge and the rear edge surface textures of the thin-wall blade, the device and the method for processing the blade by pulse electrolysis one-step trepanning and the surface micro-texture of the thin-wall blade are provided, and the problem of integral forming and surface micro-texture integral processing of the blade is solved by modifying the cathode for processing the electrolytic trepanning, so that the problem of accumulated errors caused by secondary clamping is effectively solved, the manufacturing efficiency of the integral blade is effectively improved, and an effective way is provided for manufacturing the blade made of the conductive material difficult to process. The combination of the cathode plate and the cathode body is utilized to realize the processing of the contour of the blade with the equal section and the manufacturing of the micro-textures of the surfaces of the front edge and the rear edge of the blade. The invention has remarkable effect on improving the surface quality and the 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 motion 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, and the vertical plate is fixedly arranged on one side of the plane workbench and is 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 motion device is connected with the electrolytic machining control system; the working electrode system is connected with the electrolytic machining control system, the working electrode system is arranged at the lower part of the Z-direction reciprocating motion device, the whole working electrode system regularly reciprocates along the Z-axis direction through the Z-direction reciprocating motion 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 plate, a cathode body, a micro-texture manufacturing micro-cathode array, a left cylinder, a right cylinder and a cylinder push rod, wherein the cathode plate is connected with the cathode of an electrolytic machining pulse power supply, the cathode plate is mounted on the lower bottom surface of the cathode body in a matched manner through a screw and a nut, a forming hole with the same outline as that of an anode workpiece is formed in the middle of the cathode plate, and the forming hole is a through hole; the cathode body is provided with a hollow cavity, the hollow cavity corresponds to a forming hole in the middle of the cathode sheet, and array holes matched with array copper columns in the micro-texture manufacturing micro-cathode array are formed in the cavity walls at two sides of the hollow cavity of the cathode body and 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 at the left side and the right side of the outside of the cathode body, each micro-texture manufacturing micro-cathode array comprises a substrate, array copper columns which are arranged in an array manner are arranged on the substrate, and the array copper columns are connected with the cathode of an electrolytic machining pulse power supply; the left cylinder and the right cylinder are respectively electrically connected with the electrolytic machining control system, the number of the cylinder push rods is two, the front ends of the two cylinder push rods are respectively connected with the left cylinder and the right cylinder, the tail ends of the two cylinder push rods are respectively arranged on one side, opposite to the cathode body, of the substrate of the micro-cathode array manufactured by the two micro-textures, and the two cylinder push rods are respectively driven by the left cylinder and the right cylinder, so that the array copper columns on the micro-cathode array manufactured by the two micro-textures can reciprocate along the corresponding array holes on the body cavity wall of the cathode body.
As a preferable scheme of the invention, the diameter of the array copper column is 1mm.
As a preferable 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 bolts, and the conversion head is arranged on the rotary table through bolts; the bottom surface of the clamping seat is arranged on the conversion head, and the clamping seat is used for clamping and fixing the anode workpiece.
The pulse electrolysis one-step trepanning processing blade and the surface micro-texture method thereof are characterized in that the method utilizes the pulse electrolysis one-step trepanning processing blade and the surface micro-texture device thereof to simultaneously process the blade profile and the blade surface micro-texture, and the method specifically comprises the following steps:
step one, preparing an anode workpiece to be processed, and switching on a power supply of the device;
step two, mounting a cathode plate on a cathode body, connecting the cathode plate with the cathode of an electrolytic machining pulse power supply, and simultaneously connecting an array copper column in the micro-texture manufacturing micro-cathode array with the cathode of the electrolytic machining pulse power supply;
step three, installing an anode workpiece on a workpiece clamping system and connecting the anode workpiece with the anode of an electrolytic machining pulse power supply;
step four, adjusting the position of the Z-direction reciprocating motion device through an electrolytic machining control system, and setting the initial machining gap between the cathode plate and the anode workpiece to be 0.5mm;
setting machining parameters in an electrolytic machining control system, applying machining voltage between a working electrode system and an anode workpiece to be 16V, enabling the feeding speed of a Z-direction reciprocating motion device to be 0.3mm/min, enabling electrolyte pressure to be 300kPa, and carrying out electrolytic machining on anode workpiece sleeve materials;
step six, after finishing the contour machining of the anode workpiece, carrying out finish machining on the bottom surface of the anode workpiece;
step seven, after finishing, controlling a left cylinder and a right cylinder to push two cylinder push rods, so that the two cylinder push rods drive the micro-texture manufacturing micro-cathode arrays on the left side and the right side to perform relative movement, the micro-texture manufacturing micro-cathode arrays gradually approach the front edge and the rear edge of an anode workpiece, and the distance of the array copper columns of the micro-texture manufacturing micro-cathode arrays extending into a cathode body exceeds 50 mu m of the inner surface of the cathode body for processing;
step eight, carrying out surface micro-texture processing on the processed and formed anode workpiece, and controlling a left cylinder and a right cylinder to pull back two cylinder push rods after the surface micro-texture processing of the anode workpiece is finished, so that micro-texture manufacturing micro-cathode arrays on the left side and the right side are far away from the front edge and the rear edge surfaces of the anode workpiece; and returning the Z-direction reciprocating motion device to the zero point, and closing the power supply of the device.
Through the design scheme, the invention has the following beneficial effects:
1. the processing range of the general electrolytic equipment is widened, and the processing efficiency of the machine tool is improved.
2. The integral blade processing and the in-situ manufacturing of the blade surface micro-texture are realized through the same electrolysis equipment, the problems of integral blade forming and surface micro-texture integrated processing 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 cathode plate and cathode body cooperative design method for electrolytic machining is improved, the machining of the contour of the blade with the equal cross section and the manufacturing of the surface micro-textures of the front edge and the rear edge of the blade are realized by utilizing the combination of the cathode plate and the cathode body, and the invention has remarkable effect on improving the surface quality and the service performance of the blade.
Drawings
The invention is further described in the following description and detailed description with reference to the drawings:
FIG. 1 is a schematic diagram of a pulse electrolysis one-step trepanning processing blade and a surface micro-texture device thereof according to the present invention;
FIG. 2 is an enlarged schematic view of a part of a blade for processing a one-step nesting material by pulse electrolysis and a surface micro-texture device thereof according to the present invention;
FIG. 3 is a view of the surface microtexturing device in an inactive state;
fig. 4 is a view of the surface microtexturing device in operation.
In the figure: the device comprises a machine tool body, a 2-Z-direction reciprocating motion device, a 3-working electrode system, a 4-anode workpiece, a 5-workpiece clamping system, a 6-electrolytic machining pulse power supply, a 101-plane workbench, a 102-vertical plate, 301-cathode plates, 302-cathode bodies, 303-micro-textures for manufacturing micro-cathode arrays, 304-left cylinders, 305-right cylinders, 306-cylinder push rods, 501-turntables, 502-conversion heads and 503-clamping seats.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to preferred embodiments and the accompanying drawings. Those skilled in the art will appreciate that. The following detailed description is illustrative and not restrictive, and should not be taken as limiting the scope of the invention. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. Well-known methods, procedures, flows, and components have not been described in detail so as not to obscure the nature of the invention.
As shown in fig. 1, 2, 3 and 4, the pulse electrolysis one-step trepanning blade and the surface micro-texture device thereof comprise 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, the vertical plate 102 is fixedly arranged on one side of the plane workbench 101 and is vertically arranged, so that a high-precision machining 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 motion 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 arranged at the lower part of the Z-direction reciprocating motion device 2, the whole working electrode system 3 is enabled to regularly reciprocate along the Z-axis direction through the Z-direction reciprocating motion device 2, the workpiece clamping system 5 is used for clamping an anode workpiece 4, and the workpiece clamping system 5 is arranged 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 are not described in detail herein.
The working electrode system 3 moves along with the movement of the Z-direction reciprocating movement device 2; the working electrode system 3 comprises a cathode plate 301, a cathode body 302, a micro-texture manufacturing micro-cathode array 303, a left cylinder 304, a right cylinder 305 and a cylinder push rod 306, wherein a forming hole with the same outline as that of the anode workpiece 4 is formed in the middle of the cathode plate 301, the forming hole is a through hole, the forming hole formed in the cathode plate 301 can realize equal outline 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; the cathode plate 301 is mounted on the lower bottom surface of the cathode body 302 through a screw and a nut in a matching manner, array holes matched with array copper columns in the micro-texture manufacturing micro-cathode array 303 are formed in the cavity wall at two sides of the hollow cavity of the cathode body 302, 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 at 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 manner 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 in 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 parts of the left cylinder 304 and the right cylinder 305, and the tail ends of the cylinder push rods 306 are arranged on one side of the substrate of the micro-texture manufacturing micro-cathode array 303, which is opposite to the cathode body 302, 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 cylinder 304 and the right cylinder 305 drive the micro-texture manufacturing micro-cathode array 303 to move along the array holes of the cavity wall of the cathode body 302 by controlling the telescopic movement of the cylinder push rod 306.
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 arranged on the plane workbench 1 through bolts, the conversion head 502 is arranged 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 arranged on the conversion head 502, and the upper surface of the clamping seat 503 is fixedly provided with the anode workpieces 4 through clamping.
The working method of the pulse electrolysis one-step trepanning processing blade and the surface micro-texture device thereof adopts a mode of processing the profile of the blade and the surface micro-texture of the blade by adopting a pulse electrolysis method, and comprises the following steps of:
firstly, checking a working environment, preparing an anode workpiece 4 to be processed, cleaning by using an ultrasonic cleaner, turning on a power supply of the device, and detecting whether all parts of the device are normal;
step two, a cathode plate 301 is arranged on a cathode body 302 and is connected with the cathode of an electrolytic machining pulse power supply 6, and meanwhile, array copper columns in a micro-texture manufacturing micro-cathode array 303 are connected with the cathode of the electrolytic machining pulse power supply 6;
step three, the anode workpiece 4 is arranged on the clamping seat 503 and is connected with the positive electrode of the electrolytic machining pulse power supply 6;
step four, regulating the Z-direction reciprocating motion device 2 through an electrolytic machining control system, and setting the initial machining gap between the cathode plate 301 and the anode workpiece 4 to be 0.5mm;
setting machining parameters in an electrolytic machining control system, applying machining voltage between the working electrode system 3 and the anode workpiece 4 to be 16V, enabling the feeding speed of the Z-direction reciprocating motion device 2 to be 0.3mm/min, enabling electrolyte pressure to be 300kPa, and carrying out jacking electrolytic machining on the anode workpiece 4;
step six, after finishing the contour machining of the anode workpiece 4, carrying out finish machining on the bottom surface of the anode workpiece 4 to enable the bottom surface to meet the precision requirement;
step seven, 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 array 303 on the left side and the right side to perform relative movement, gradually approaching the front edge and the rear edge of the anode workpiece 4, and processing the micro-texture manufacturing micro-cathode array 303 to extend out of the cathode body 302 by a distance of more than 50 mu m from the inner surface of the cathode body 302;
step eight, carrying out surface micro-texture processing on the processed and formed anode workpiece 4, and controlling a left cylinder 304 and a right cylinder 305 to pull back a cylinder push rod 306 after the surface micro-texture processing of the anode workpiece 4 is finished, so as to force micro-texture manufacturing micro-cathode arrays 303 on the left side and the right side to be far away from the front edge and the rear edge surfaces of the anode workpiece 4; the Z-direction reciprocating motion device 2 is returned to zero point, and the power supply of the device is turned off.
In summary, the pulse electrolysis one-step trepanning processing blade, the surface micro-texture device and the method thereof solve the problem of integral processing of blade integral forming and surface micro-texture by modifying the cathode processed by electrolysis trepanning, effectively solve the problem of accumulated errors caused by secondary clamping, effectively improve the manufacturing efficiency of the integral blade, and provide an effective way for manufacturing the blade made of the difficult-to-process conductive material.

Claims (4)

1. The pulse electrolysis one-step trepanning processing blade and the surface micro-texture device thereof, wherein the device comprises a machine tool body (1), an electrolytic processing 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 processing pulse power supply (6), 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 the plane workbench and the vertical plate are 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 motion 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 arranged at the lower part of the Z-direction reciprocating motion device (2), the whole working electrode system (3) regularly reciprocates along the Z-axis direction through the Z-direction reciprocating motion device (2), the workpiece clamping system (5) is used for clamping an anode workpiece (4), and the workpiece clamping system (5) is positioned under the working electrode system (3); the method is characterized in that:
the working electrode system (3) comprises a cathode plate (301), a cathode body (302), a micro-texture manufacturing micro-cathode array (303), a left cylinder (304), a right cylinder (305) and a cylinder push rod (306), wherein the cathode plate (301) is connected with the cathode of an electrolytic machining pulse power supply (6), the cathode plate (301) is mounted on the lower bottom surface of the cathode body (302) through the cooperation of a screw and a nut, the middle part of the cathode plate (301) is provided with a forming hole with the same outline as an anode workpiece (4), and the forming hole is a through hole; the cathode body (302) is provided with a hollow cavity, the hollow cavity corresponds to a forming hole in the middle of the cathode sheet (301), and array holes matched with array copper columns in the micro-texture manufacturing micro-cathode array (303) are formed in the cavity walls at two sides of the hollow cavity of the cathode body (302) and 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 at the left side and the right side outside the cathode body (302), each micro-texture manufacturing micro-cathode array (303) comprises a substrate, array copper columns which are arranged in an array manner are arranged on the substrate, and the array copper columns are connected with the negative electrode of the electrolytic machining pulse power supply (6); the left cylinder (304) and the right cylinder (305) are respectively electrically connected with the electrolytic machining control system, the number of the cylinder push rods (306) is two, the front ends of the two cylinder push rods (306) are respectively connected with the left cylinder (304) and the right cylinder (305), the tail ends of the two cylinder push rods (306) are respectively arranged on one side, opposite to the cathode body (302), of the substrate of the two micro-texture manufacturing micro-cathode arrays (303), and the two cylinder push rods (306) are respectively driven by the left cylinder (304) and the right cylinder (305) so that array copper columns on the two micro-texture manufacturing micro-cathode arrays (303) can reciprocate along corresponding array holes on the cavity wall of the cathode body (302).
2. The pulse electrolysis one-step trepanning blade and its surface micro-texturing device according to claim 1, wherein: the column diameter of the array copper column is 1mm.
3. The pulse electrolysis one-step trepanning blade and its surface micro-texturing device according to claim 1, wherein: 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 arranged on the plane workbench (101) through bolts, and the conversion head (502) is arranged on the rotary table (501) through bolts; 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 pulse electrolysis one-step trepanning processing blade and the surface micro-texture method thereof are characterized in that the method utilizes the pulse electrolysis one-step trepanning processing blade and the surface micro-texture device thereof according to any one of claims 1-3 to simultaneously process the profile of the blade and the surface micro-texture of the blade, and specifically comprises the following steps:
step one, preparing an anode workpiece (4) to be processed, and turning on a power supply of the device;
step two, a cathode plate (301) is arranged on a cathode body (302) and is connected with the cathode of an electrolytic machining pulse power supply (6), and meanwhile, array copper columns in a micro-texture manufacturing micro-cathode array (303) are connected with the cathode of the electrolytic machining pulse power supply (6);
step three, installing the anode workpiece (4) on a workpiece clamping system (5) and connecting the anode workpiece with the positive electrode of an electrolytic machining pulse power supply (6);
step four, adjusting the position of the Z-direction reciprocating motion device (2) through an electrolytic machining control system, and setting the initial machining gap between the cathode plate (301) and the anode workpiece (4) to be 0.5mm;
setting machining parameters in an electrolytic machining control system, applying a machining voltage of 16V between a working electrode system (3) and an anode workpiece (4), wherein the feeding speed of a Z-direction reciprocating motion device (2) is 0.3mm/min, and the electrolyte pressure is 300kPa to perform jacking electrolytic machining on the anode workpiece (4);
step six, after finishing the contour machining of the anode workpiece (4), carrying out finish machining on the bottom surface of the anode workpiece (4);
step seven, after finishing, controlling a left cylinder (304) and a right cylinder (305) to push two cylinder push rods (306), so that the two cylinder push rods (306) drive the micro-texture manufacturing micro-cathode arrays (303) on the left side and the right side to perform relative movement, the micro-texture manufacturing micro-cathode arrays gradually approach the front edge and the rear edge of an anode workpiece (4), and the distance of an array copper column of each micro-texture manufacturing micro-cathode array (303) extending into a cathode body (302) exceeds 50 mu m of the inner surface of the cathode body (302) to perform processing;
step eight, carrying out surface micro-texture processing on the processed and formed anode workpiece (4), and controlling a left cylinder (304) and a right cylinder (305) to pull back two cylinder push rods (306) after the surface micro-texture processing of the anode workpiece (4) is finished, so that micro-texture manufacturing micro-cathode arrays (303) on the left side and the right side are far away from the front edge surface and the rear edge surface of the anode workpiece (4); and (3) returning the Z-direction reciprocating motion device (2) to the zero point, and closing the power supply of the device.
CN202210695493.XA 2022-06-20 2022-06-20 Pulse electrolysis one-step trepanning processing blade and surface micro-texture device and method thereof Active CN114888381B (en)

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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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