Integrated bladed disk multi-channel variable cathode radial electrolytic machining apparatus and method

Abstract

This invention discloses a radial electrolytic machining apparatus and method for integral bladed disks with multi-channel variable cathodes, relating to the field of electrolytic machining technology. The apparatus includes a cathode tool, a guide assembly, and a transmission assembly. The cathode tool is slidably connected to the guide assembly along a feed trajectory, which has components along the radial direction of the bladed disk blank and circumferential components around the centerline of the cathode tool. The cathode tool is connected to the machine tool spindle via the transmission assembly, which converts the axial movement of the machine tool spindle into radial movement along the bladed disk blank. This invention also provides a method for radial electrolytic machining of integral bladed disks with multi-channel variable cathodes. The apparatus and method provided by this invention have a simple structure, stable operation, and high machining efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrolytic machining technology, and in particular to a radial electrolytic machining apparatus and method for an integral bladed disk with multi-channel variable cathode. Background Technology

[0002] Integral bladed disks (IBDs) are a new type of structural component designed for high-performance aero engines. They aim to reduce structural weight, decrease the number of parts, and improve aerodynamic efficiency, and have become an indispensable part of modern aero engines. These components are typically manufactured using new, difficult-to-machine materials such as titanium alloys and nickel-based superalloys. Their blade profiles are complex, their passageways are poorly open, and they require high machining precision. This makes it difficult to manufacture IBDs using traditional manufacturing processes, as it results in long processing cycles and high manufacturing costs.

[0003] Electrolytic machining is a processing method for removing metal materials based on the principle of electrochemical anodic dissolution. It has many advantages such as wear-free variable electrodes, wide processing range, and good surface quality. It can effectively overcome many difficulties in the manufacturing of integral bladed disks and is one of the technical approaches to solve the processing problems of integral bladed disks in a high-quality, efficient, low-cost, and fast-response manner.

[0004] Electrochemical machining of integral bladed disks includes two processes: rough machining of the blade passages and finish machining of the blade profiles. Blade passage machining involves using a shaped electrode to electrochemically dissolve inter-blade channels on the bladed disk blank, leaving a margin according to the blade distribution. Most of the material is removed during this process. Existing electrochemical machining technologies for blade passages mainly fall into three categories: conformal electrochemical machining, radial feed electrochemical machining, and CNC electrochemical machining. Currently, radial feed electrochemical machining is still primarily based on single-electrode machining, meaning that the machining of one blade passage is completed before the machining of the next blade passage begins. However, for CNC electrolytic machining, some patents have proposed multi-electrode electrolytic machining methods for integral impellers. For example, the patent "Multi-channel Electrolytic Machining Device for Integral Impellers" proposes a multi-tube electrode electrolytic machining device based on crank-rocker mechanism transmission; the patent "A Fixture and Method for High-Efficiency Electrolytic Grooving Machining of Integral Impellers" proposes a multi-tube electrode electrolytic machining device based on synchronous wheel and idler wheel mechanism transmission, which can realize synchronous electrolytic machining of multiple blade channels. However, both of the above technologies require complex electronic control to realize the helical feed of the cathode tool. The electronic control and its transmission mechanism are complex, and the machining process is unstable. Summary of the Invention

[0005] The purpose of this invention is to provide an integral bladed disk multi-channel variable cathode radial electrolytic machining device and method to solve the problems existing in the prior art. It has a simple structure, stable working state and high machining efficiency.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] This invention provides an integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus, comprising:

[0008] Cathode tools;

[0009] A guide assembly, wherein the cathode tool is slidably connected to the guide assembly along a feed trajectory having components along the radial direction of the impeller blank and circumferentially about the centerline of the cathode tool; and

[0010] The transmission assembly connects the cathode tool to the machine tool spindle, and the transmission assembly is used to convert the axial motion of the machine tool spindle into radial motion along the impeller blank.

[0011] Preferably, the transmission assembly includes an adapter plate, an inclined guide rail, and a slider. The adapter plate is connected to the main shaft for transmission, the inclined guide rail is fixedly connected to the adapter plate, the angle between the inclined guide rail and the axis of the impeller blank is an acute angle, the inclined guide rail is disposed on the outer circumference of the impeller blank, the slider is slidably disposed on the inclined guide rail, and the cathode tool is rotatably disposed on the slider around its own center line.

[0012] Preferably, the adapter plate is fixedly connected to the machine tool spindle.

[0013] Preferably, it includes multiple inclined guide rails, which are arranged sequentially around the circumference on the adapter plate.

[0014] Preferably, the cathode tool is rotatably connected to the slider via a connecting hinge and a cathode rod.

[0015] Preferably, the cathode tool includes an upper cathode component and a lower cathode component, one end of which is hinged to a rotating shaft, and the other end of which is slidably connected to the guide assembly along the feed trajectory. The rotating shaft is fixedly connected to the slider, and the rotating shaft extends radially along the impeller blank when in operation.

[0016] Preferably, the guiding assembly includes a guiding channel, the impeller blank is located on one side of the guiding channel, the cathode tool extends into the guiding channel from the other side of the guiding channel, the guiding channel is provided with two sliding grooves, and the cathode tool is provided with two guide posts at both ends, the two guide posts are slidably disposed in the two sliding grooves respectively, and the sliding grooves extend along the feed trajectory.

[0017] Preferably, the groove extends along a spiral line.

[0018] Preferably, it also includes an annular clamp, which includes an upper clamp and a lower clamp. The upper clamp and the lower clamp are used to clamp the bladed disk blank. The annular structure near the outer side of the upper clamp and the lower clamp has multiple guide channels.

[0019] Preferably, the upper cathode and the lower cathode are provided with liquid passage grooves on the end faces facing the center of the impeller blank, and liquid inlets are provided on the end faces away from the center of the impeller blank.

[0020] This invention also provides a method for radial electrolytic machining of an integral bladed disk with a multi-channel variable cathode, comprising:

[0021] (1) The bladed disk blank is installed at the machining station;

[0022] (2) The machine tool spindle drives the cathode tool to feed towards the middle of the bladed disk blank along the feed trajectory under the guidance of the guide assembly through the transmission assembly. During the processing, electrolyte is introduced into the processing area, and the bladed disk blank is electrochemically dissolved to form the three-dimensional contour of multiple blade channels.

[0023] (3) After machining a set of blade channels, stop the liquid supply and power off. The machine tool spindle drives the cathode tool to move away from the blade blank and return to the initial position under the guidance of the guide component through the transmission component.

[0024] (4) Rotate the bladed disk blank to index, and repeat the above operation until all blade passages are machined.

[0025] (5) When the processing is finished, turn off the power and shut down the electrolyte circulation system.

[0026] The present invention achieves the following technical effects compared to the prior art:

[0027] 1. This invention guides the cathode tool by setting a guiding component. The axial motion of the spindle is converted into radial motion via a transmission mechanism, and then the guiding component further converts the radial motion into rotary or helical feed motion. This allows the cathode tool to feed along a predetermined trajectory using a simple mechanical structure. Therefore, the device provided by this invention has a simple structure and stable operation.

[0028] 2. This invention employs a multi-channel simultaneous processing method for the integral bladed disk blade cascade channel, which can process multiple blade cascades at once, greatly improving the processing efficiency of the integral bladed disk and significantly shortening the manufacturing cycle.

[0029] 3. This invention can achieve synchronous rotational feed of multiple cathode tools by using only a single spindle axial feed, which simplifies the machine tool mechanism, has universality, and realizes "single-axis input, multi-axis output" coordinated motion.

[0030] 4. During the processing of this invention, the movement trajectories of the cathode components and lower cathode components on each branch do not interfere with each other, exhibiting strong independence and good consistency; the number of cathode tools can be adjusted according to the number of blades on the impeller to meet processing requirements; large-bend blades can be better processed by adjusting the processing trajectory of the upper and lower cathode components, resulting in better allowance difference and strong process adaptability; and the electrolyte flow mode of each cathode block adopts a forward flow, eliminating the need for additional guide blocks and positioning fixtures, thus improving the overall mechanism installation efficiency.

[0031] 5. Compared with traditional side-flow assembly fixtures, the fixture in this invention only includes an upper fixture and a lower fixture, which saves manufacturing costs, avoids processing errors caused during assembly, and improves installation efficiency; when processing different curved and twisted blades, only the upper and lower fixtures with different sliding groove structures need to be replaced to start processing, which improves the flexibility of installation. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a radial electrolytic machining device with a multi-channel variable cathode for an integral bladed disk.

[0034] Figure 2 This is a schematic diagram of a wedge mechanism and its inclined guide rail and slider structure.

[0035] Figure 3 This is a schematic diagram of the cathode tool, cathode rod, and connecting hinge structure.

[0036] Figure 4 This is a schematic diagram of the cathode tooling process.

[0037] Figure 5 This is a schematic diagram of the fixture structure.

[0038] Figure 6 This is a schematic diagram of the flow field during the processing.

[0039] Figure 7 This is a schematic diagram showing the state of each cathode tool and each slider before the cathode tool is fed.

[0040] Figure 8 This is a schematic diagram showing the status of each cathode tool and each slider after the cathode tool is fed.

[0041] The labels in the diagram are as follows: 1-Transfer plate; 2-Wedge mechanism; 3-Inclined guide rail; 4-Slider; 5-Connector; 6-Electrode connector; 7-Cathode rod; 701-Power supply connection surface; 8-Connecting hinge; 9-Upper cathode component; 901-Upper liquid passage; 902-Upper guide post; 903-Upper liquid inlet; 10-Lower cathode component; 101-Lower liquid passage; 102-Lower guide post; 103-Lower liquid inlet; 11-Lower clamp; 111-Lower spiral groove; 12-Upper clamp; 121-Upper spiral groove; 13-Impeller disk blank; 131-Impeller channel. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] This invention provides an integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus, such as... Figures 1 to 8 As shown, it includes a cathode tool, a guide assembly, and a transmission assembly. The cathode tool, the anode workpiece, and the electrolyte between them are interconnected to electrochemically dissolve and remove material in corresponding areas, obtaining the three-dimensional contour of the blade channel 131. The cathode tool and the guide assembly are slidably connected along a feed trajectory, which has components along the radial direction of the blade blank 13 and around the centerline of the cathode tool; that is, the feed trajectory is a helical trajectory, or it can be described as rotating while feeding radially, to achieve machining of the twisted blade channel. The cathode tool is connected to the machine tool spindle via the transmission assembly, which converts the axial motion of the machine tool spindle into radial motion along the blade blank 13.

[0045] This invention guides the cathode tool using a guiding component. The axial motion of the spindle is converted into radial motion via a transmission mechanism, and then the guiding component further converts the radial motion into rotary or helical feed motion. This allows the cathode tool to feed along a predetermined trajectory using a simple mechanical structure. Therefore, the device provided by this invention has a simple structure and stable operation.

[0046] There are multiple ways to convert axial motion into radial motion along the impeller blank 13 using the transmission assembly. This invention provides only one implementation method; however, other existing structures can be used in other embodiments. In some embodiments, the transmission assembly includes a transfer plate 1, multiple inclined guide rails 3, and multiple sliders 4. The multiple inclined guide rails 3 are arranged sequentially around the circumference of the transfer plate 1, and one slider 4 corresponds to one inclined guide rail 3. The transfer plate 1 is connected to the main shaft for transmission, and the inclined guide rails 3 are fixedly connected to the transfer plate 1. The angle between the inclined guide rail 3 and the axis of the impeller blank 13 is an acute angle. The inclined guide rail 3 is located on the outer circumference of the impeller blank 13, and the slider 4 is slidably disposed on the inclined guide rail 3. The cathode tool is rotatably disposed on the slider 4 around its own center line.

[0047] In this embodiment, the multiple inclined guide rails 3 have the same degree of inclination, and the inclination direction is towards the outside or inside of the bladed disk blank 13. This embodiment can achieve synchronous rotational feed of multiple cathode tools by only using the axial feed of a single spindle, which simplifies the machine tool mechanism, has universality, and realizes "single-axis input, multi-axis output" coordinated motion.

[0048] Specifically, in this embodiment, when the spindle drives the inclined guide rail 3 to move up and down, due to the restriction of the cathode tool's vertical position by the guide component, in order to adapt to the vertical movement of the inclined guide rail 3, the slider 4 will drive the cathode tool to slide on the inclined guide rail 3, thereby realizing that the slider 4 drives the cathode tool to move radially. The cathode tool, under the restriction of the guide component, feeds along the feed trajectory toward the bladed disk blank 13, thereby realizing the electrolytic machining of the blank.

[0049] In some embodiments, the adapter plate 1 is fixedly connected to the machine tool spindle, as shown in the figure. The adapter plate 1 is provided with weight reduction holes, and the middle part of the adapter plate 1 is fixedly connected to the machine tool spindle.

[0050] In some embodiments, the cathode tool is rotatably connected to the slider 4 via a connecting hinge 8 and a cathode rod 7. Specifically, as shown in the figure, the slider 4 is provided with a connector 5, and an electrode connector 6 is bolted to the connector 5. The cathode rod 7 is fixed on the electrode connector 6, and the end of the cathode rod 7 away from the electrode connector 6 is fixedly connected to the connecting hinge 8.

[0051] In some embodiments, the cathode tool includes an upper cathode element 9 and a lower cathode element 10. One end of the upper cathode element 9 and the lower cathode element 10 are both hinged to a rotating shaft, and the other end is slidably connected to a guide assembly along the feed trajectory. The rotating shaft is fixedly connected to the slider 4. When in operation, the rotating shaft extends radially along the impeller blank 13.

[0052] In this embodiment, during the processing, the movement trajectories of the cathode component 9 and the lower cathode component 10 on each branch do not interfere with each other, exhibiting strong independence and good consistency. The number of cathode tools can be adjusted according to the number of blades on the impeller to meet processing requirements. By adjusting the processing trajectory of the upper and lower cathode components 10, large curved and twisted blades can be processed better, resulting in a better allowance difference and strong process adaptability.

[0053] In some embodiments, the guide assembly includes a guide channel, the impeller blank 13 is located on one side of the guide channel, the cathode tool extends into the guide channel from the other side of the guide channel, two grooves are provided in the guide channel, and two guide posts are provided at both ends of the cathode tool. The two guide posts are slidably disposed in the two grooves respectively, and the grooves extend along the feed trajectory.

[0054] In some embodiments, the groove extends along a spiral.

[0055] In some embodiments, the present invention further includes an annular clamp, which includes an upper clamp 12 and a lower clamp 11. The upper clamp 12 and the lower clamp 11 are used to clamp the bladed disk blank 13. The annular structure near the outer side of the upper clamp 12 and the lower clamp 11 has multiple guide channels.

[0056] Compared with traditional side-flow assembly fixtures, the fixture provided in this embodiment only includes an upper fixture 12 and a lower fixture 11, which saves manufacturing costs, avoids processing errors caused during assembly, and improves installation efficiency. When processing different curved and twisted blades, processing can begin simply by replacing the upper and lower fixtures 11 with different slide groove structures, which improves installation flexibility.

[0057] In some embodiments, liquid passage grooves are provided on the end faces of the upper cathode member 9 and the lower cathode member 10 facing the center of the bladed disk blank 13, and liquid inlets are provided on the end faces away from the center of the bladed disk blank 13.

[0058] In this embodiment, the electrolyte flow mode of each cathode block adopts a forward flow mode, which eliminates the need for additional flow guide blocks and positioning fixtures, thereby improving the overall installation efficiency of the mechanism.

[0059] This invention also provides a method for radial electrolytic machining of an integral bladed disk with a multi-channel variable cathode, utilizing the aforementioned radial electrolytic machining apparatus for integral bladed disks, including:

[0060] (1) The bladed disk blank 13 is installed in the machining station;

[0061] (2) The machine tool spindle drives the cathode tool to feed along the feed trajectory towards the middle of the impeller blank 13 under the guidance of the guide assembly through the transmission assembly. During the processing, electrolyte is introduced into the processing area, and the impeller blank 13 is electrochemically dissolved to form the three-dimensional contour of multiple blade channels 131.

[0062] (3) After machining a set of blade channel 131, stop the liquid supply and power off. The machine tool spindle drives the cathode tool away from the blade blank 13 and back to the initial position through the transmission component and under the guidance of the guide component.

[0063] (4) Rotate the bladed disk blank 13 to index, and repeat the above operation until all blade passages 131 are machined.

[0064] (5) When the processing is finished, turn off the power and shut down the electrolyte circulation system.

[0065] This invention possesses all the advantages of the aforementioned integral bladed disk multi-channel variable cathode radial electrolytic processing device, which will not be elaborated upon here.

[0066] The specific method is as follows:

[0067] (a) The bladed disk blank 13 is mounted on the fixture;

[0068] (b) Start the electrolyte circulation system and introduce electrolyte into the processing area;

[0069] (c) Start the power supply to energize the cathode tool and the bladed disk blank 13;

[0070] (d) When the spindle drives the adapter plate 1 to move axially, and the adapter plate 1 moves downward, it drives the inclined guide rail 3 to move axially. The slider 4, which cooperates with the inclined guide rail 3, drives the connecting piece 5 to move radially. The connecting piece 5 drives the electrode connecting seat 6 to push the cathode rod 7 to feed linearly. This causes the top guide posts of the upper cathode piece 9 and the lower cathode piece 10 to rotate and feed around the connecting hinge 8 under the action of the spiral groove of the upper clamp 12 and the spiral groove of the lower clamp 11. During the processing, while the upper cathode piece 9 and the lower cathode piece 10 rotate and feed around the connecting hinge 8, electrolyte is introduced through the liquid inlet of the upper and lower cathode pieces 10. The electrolyte flows forward into the processing area through the liquid passage. When the power is turned on, the material of the bladed disk blank 13 electrochemically dissolves to form the three-dimensional contour of multiple blade channel 131.

[0071] (e) After machining a set of blade channel 131, stop the liquid supply, turn off the power, and the main shaft moves upward in an axial direction. Under the action of the adapter plate 1 and the inclined guide rail 3, the slider 4, the connector 5, and the cathode rod 7 are pulled back to the initial position.

[0072] (f) Rotate the bladed disk blank 13 to index, and repeat the above operation until all blade passages 131 are machined.

[0073] (g) After processing is complete, turn off the power and shut down the electrolyte circulation system.

[0074] like Figure 4-5As shown, the cathode rod 7 is provided with threaded holes and positioning holes. The connecting hinge 8 is fixedly connected to the cathode rod 7 through the threaded holes and positioning holes. The upper cathode component 9 and the lower cathode component 10 are rotatably connected to the connecting hinge 8. The cathode block is connected to the clamp spiral groove through the guide post. The power connection surface 701 on the cathode rod 7 is connected to the negative terminal of the power supply. The outer end of the cathode rod 7 is provided with a stepped surface, that is, the end of the cathode rod 7 used to connect with the electrode connecting seat 6 is thinner and inserted into the mounting hole of the electrode connecting seat 6. One end of the stepped surface abuts against the surface of the electrode connecting seat 6 to realize the transmission of force. When the adapter plate 1 drives the wedge mechanism 2 to move axially, the stepped surface at the rear end of the cathode rod 7 pushes the front end of the cathode rod 7 to move axially. At the same time, the guide posts of the upper and lower cathode components 10 rotate around the connecting hinge 8 under the restriction of the clamp spiral groove, pushing the cathode body to make a rotary feed motion.

[0075] The fixture includes an upper fixture 12, an upper spiral groove 121, a lower fixture 11, and a lower spiral groove 111. Electrolyte flows in from the upper and lower inlets, passes through the liquid channels of the upper and lower cathode components 10, and flows into the processing area. During processing, the guide post of the upper cathode component 9 rotates around the connecting hinge 8 under the constraint of the spiral groove of the upper fixture 12, and the lower cathode component 10 is processed similarly. The spiral grooves of the upper fixture 12 and lower fixture 11 can be machined with different spiral grooves according to the different degrees of blade twist.

[0076] like Figure 6 As shown, during radial feed electrolytic machining, the cathode tool in this invention has a machining edge at the front end, the machining surface is the end face of the machining edge, and the electrolytic flow is a positive flow type, that is, the electrolyte flows through the liquid inlet of the upper and lower cathode parts 10 through the liquid tank to the machining area, and then flows out freely from both sides. As the cathode body is spirally fed, the material in the area corresponding to the machining edge undergoes electrochemical dissolution and is removed, thereby obtaining the three-dimensional contour of the blade channel 131.

[0077] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A radial electrolytic machining apparatus for an integral bladed disk with multi-channel variable cathode, characterized in that: include: Cathode tools; A guide assembly, wherein the cathode tool is slidably connected to the guide assembly along a feed trajectory having components along the radial direction of the impeller blank and circumferentially about the centerline of the cathode tool; and A transmission assembly is provided, in which the cathode tool is connected to the machine tool spindle. The transmission assembly converts the axial motion of the machine tool spindle into radial motion of the cathode tool along the impeller blank. The transmission assembly includes a transfer plate, a slanted guide rail, and a slider. The transfer plate is connected to the spindle, and the slanted guide rail is fixedly connected to the transfer plate. The angle between the slanted guide rail and the axis of the impeller blank is acute. The slanted guide rail is located circumferentially outside the impeller blank, and the slider is slidably mounted on the slanted guide rail. The cathode tool is rotatably mounted on the slider about its own centerline. The cathode tool is rotatably connected to the slider via a connecting hinge and a cathode rod. The cathode tool includes an upper cathode component and a lower cathode component, one end of which is hinged to a rotating shaft. The other end is slidably connected to the guide assembly along the feed trajectory. The rotating shaft is fixedly connected to the slider. When in operation, the rotating shaft extends radially along the impeller blank. The guide assembly includes a guide channel. The impeller blank is located on one side of the guide channel. The cathode tool extends into the guide channel from the other side. Two grooves are provided in the guide channel. Two guide posts are provided at both ends of the cathode tool. The two guide posts are slidably disposed in the two grooves respectively. The grooves extend along the feed trajectory. It also includes an annular clamp. The clamp includes an upper clamp and a lower clamp. The upper clamp and the lower clamp are used to clamp the impeller blank. Multiple guide channels are opened on the annular structure near the outer side of the upper clamp and the lower clamp.

2. The integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus according to claim 1, characterized in that: The adapter plate is fixedly connected to the machine tool spindle.

3. The integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus according to claim 1, characterized in that: It includes multiple inclined guide rails, which are arranged sequentially around the circumference on the adapter plate.

4. The integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus according to claim 1, characterized in that: The upper cathode and the lower cathode are provided with liquid passage grooves on their end faces facing the center of the impeller blank, and liquid inlets are provided on their end faces away from the center of the impeller blank.

5. A method for radial electrolytic machining of an integral bladed disk with a multi-channel variable cathode, characterized in that: The integral bladed disk multi-channel variable cathode radial electrolytic machining apparatus according to any one of claims 1 to 4 comprises: (1) The bladed disk blank is installed on the machining station; (2) The machine tool spindle drives the cathode tool to feed along the feed trajectory towards the middle of the bladed disk blank under the guidance of the guide assembly through the transmission assembly. During the processing, electrolyte is introduced into the processing area, and the bladed disk blank is electrochemically dissolved to form the three-dimensional contour of multiple blade channels. (3) After machining a set of blade channels, stop the liquid supply and power off. The machine tool spindle drives the cathode tool to move away from the blade blank and return to the initial position under the guidance of the guide assembly through the transmission assembly. (4) Rotate the bladed disk blank to index, and repeat the above operation until all blade passages are machined; (5) When the processing is finished, turn off the power and shut down the electrolyte circulation system.

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