A method for removing the recast layer of a straight surface component by alternating ultrasonic vibration-assisted electrolytic cutting

Abstract

The invention discloses an alternating ultrasonic vibration-assisted electrolytic removal method for a recast layer of a straight surface component, comprising electrolytic cutting of a recast layer on a surface of a straight surface component of a workpiece by a wire electrode on a numerically controlled machine tool; the electrolytic cutting of the recast layer on the surface of the straight surface component of the workpiece by the wire electrode also comprises an ultrasonic vibration-assisted process one and an ultrasonic vibration-assisted process two that occur alternately, the ultrasonic vibration-assisted process one comprising: causing the wire electrode and the workpiece to simultaneously vibrate toward each other in a direction perpendicular to a feed direction so that electrolysis products between the wire electrode and the workpiece flow out, and the ultrasonic vibration-assisted process two comprising: applying ultrasonic vibration to an electrolyte to disturb and disperse the electrolysis products; the invention has the advantages of promoting more efficient discharge of electrolysis products in a processing area and more efficient flow renewal of an electrolyte during electrolytic cutting when removing the recast layer, improving the electrolytic removal efficiency and effect of the recast layer, and improving the electrolytic removal accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic machining, in particular to an alternating ultrasonic vibration-assisted electrolytic cutting and removal machining method for a recast layer of a straight-grained surface component. Background Art

[0002] In the fields of aerospace and other fields, straight-grained surface components, represented by tenon-mortise connection structures, cycloidal pump inner and outer rotor structures, and face gear transmission structures, are widely used. Special processing technologies have been widely used in the cutting of straight-grained surface components in recent years. Among them, special processing technologies represented by wire EDM and laser cutting are widely used in industrial production due to their advantages of high efficiency, high stability, high equipment popularity, and wide application range. However, the processing of wire EDM and laser cutting mainly relies on high-energy focusing to achieve material removal under high-temperature conditions. After processing, the physical, chemical properties and microstructure of the workpiece surface material will change. During the processing, the melted and vaporized metal will re-solidify on the workpiece surface after cooling, forming a recast layer on the workpiece surface, which not only affects the dimensional accuracy and surface quality of the workpiece, but also usually produces micropores, microcracks and other defects on the recast layer surface. In addition, the high temperature during the processing will also produce a heat-affected zone in the processing area, causing residual tensile stress on the surface of the workpiece after processing.

[0003] Problems such as surface defects and residual stresses in the recast layer on the surface of ruled surface components will make them prone to fatigue fracture under extreme working conditions, seriously reducing the service life of the components and the safety of related products. As the requirements for high surface integrity of parts in high-end application fields such as aerospace are becoming increasingly stringent, the efficient and high-quality removal of the recast layer on the surface of ruled surface components has become an urgent problem for scholars and companies at home and abroad to solve. At present, most aerospace companies usually use grinding or polishing process methods, and most of them are done manually, which is labor-intensive, inefficient, and the removal is uneven and inconsistent. Some closed-contour ruled surface components often cannot have their closed contours removed;

[0004] Electrolytic wire cutting uses a metal wire, rod or tubular electrode as the tool cathode. Based on the principle of electrochemical anodic dissolution of metal materials, the motion trajectory of the wire electrode or metal workpiece is controlled by programmable software. Under specific electrolyte and electrical parameter conditions, micro-grooves, micro-cracks and other structures, as well as micro three-dimensional structures / parts with complex shapes or high aspect ratios can be processed. Electrolytic wire cutting inherits the advantages of electrolytic machining technology, avoids the complex steps of forming electrode preparation, and especially the use of pulse power supply, which enables electrolytic wire cutting to achieve ultra-high processing localization. In recent years, researchers have attempted to use wire electrodes to electrolytically remove the recast layer along the contour of a workpiece that has been electrospark machined and has a recast layer on its surface. However, the effect is not obvious and there are many problems. For example, the removal efficiency is low. When the workpiece is thick, a large amount of electrolytic products will accumulate in the machining area during the electrolytic removal of the recast layer, seriously affecting the removal accuracy, quality and stability. For example, existing research has only attempted to use wire electrodes to remove the recast layer of open, small-thickness workpieces. When the workpiece has a closed contour, the large amount of electrolytic products produced cannot be discharged, which also makes it impossible to continue the machining.

[0005] Patent publication number CN105269094B discloses an ultrasonic vibration-assisted micro-electrolytic electric spark wire cutting processing method and device for processing non-conductive hard and brittle materials. Specifically, it discloses the use of ultrasonic vibration to assist electrolytic processing. Since the workpiece is ultrasonically vibrated along the direction of the electrode wire, the renewal of the electrolyte and chip removal are accelerated; however, there are problems such as only ultrasonic vibration of the workpiece along the direction of the electrode wire, low discharge efficiency of the electrolytic products in the processing area, slow electrolyte flow renewal speed, high content of electrolytic products in the processing area and near the processing area, poor uniformity of the flow field, affecting the electrolytic removal efficiency and electrolytic removal effect of the recast layer of the straight surface component. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the existing defects and provide an alternating ultrasonic vibration-assisted electrolytic cutting and removal processing method for the recast layer of a straight surface component. When the recast layer is removed by electrolytic processing, the more efficient discharge of electrolytic products in the processing area and the more efficient flow renewal of the electrolyte are promoted during the electrolytic cutting process, thereby achieving high uniformity control of the flow field, improving the electrolytic removal efficiency and electrolytic removal effect of the recast layer of the straight surface component, and improving the processing accuracy of the electrolytic removal of the recast layer, which can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for processing a recast layer of a straight surface component by alternating ultrasonic vibration-assisted electrolytic cutting and removal, the processing method comprising an ultrasonic vibration device A that can drive a wire electrode to generate intermittent micro-amplitude ultrasonic vibration perpendicular to its feeding direction, an ultrasonic vibration device B that can drive a workpiece to generate intermittent micro-amplitude ultrasonic vibration perpendicular to the feeding direction of the wire electrode, and an ultrasonic vibration device C that can generate intermittent ultrasonic vibration in an electrolyte and is used to disperse electrolysis products, and the ultrasonic vibration device A, the ultrasonic vibration device B and the ultrasonic vibration device C are all controlled by digital relays to control their vibration generation time and vibration stop time;

[0008] The specific processing process of the method is: the CNC machine tool uses the wire electrode to electrolytically cut the recast layer of the surface of the straight-grained surface component of the workpiece, and the wire electrode is immersed in the electrolyte in the electrolytic cell during the electrolytic cutting process; the process of the electrolytic cutting of the recast layer of the surface of the straight-grained surface component of the workpiece by the wire electrode also includes an ultrasonic vibration assisted process 1 and an ultrasonic vibration assisted process 2, and the ultrasonic vibration assisted process 1 and the ultrasonic vibration assisted process 2 occur alternately, so as to promote the efficient discharge of electrolytic products in the processing area and the efficient flow renewal of the electrolyte during the electrolytic cutting process, thereby realizing high uniformity control of the flow field;

[0009] The first ultrasonic vibration assisted process is as follows: the ultrasonic vibration device A and the ultrasonic vibration device B simultaneously generate micro-amplitude ultrasonic vibrations in opposite directions, so that the wire electrode and the workpiece simultaneously generate ultrasonic vibrations in opposite directions perpendicular to the feed direction, so that the wire electrode and the workpiece vibrate toward each other, and the electrolytic products between the wire electrode and the workpiece flow to the area outside the electrolytic machining gap;

[0010] The second ultrasonic vibration-assisted process is as follows: the ultrasonic vibration device C generates micro-amplitude ultrasonic vibrations, which apply ultrasonic disturbances to the electrolyte in the electrolytic machining area, thereby disturbing and dispersing the electrolytic products in the electrolytic machining area.

[0011] Furthermore, the ultrasonic vibration cycle of the ultrasonic vibration assisted process includes vibration occurrence time and vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and ultrasonic occurrence time are generally adjusted according to the size of the electrode and the thickness of the workpiece.

[0012] Furthermore, the ultrasonic vibration cycle of the ultrasonic vibration assisted process includes vibration occurrence time and vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and ultrasonic occurrence time are generally adjusted according to the capacity of the electrolyte in the processing area.

[0013] Furthermore, the specific process of the ultrasonic vibration assisted process and the ultrasonic vibration assisted process alternating is: after the ultrasonic vibration time of the ultrasonic vibration assisted process ends, the ultrasonic vibration time of the ultrasonic vibration assisted process starts thereupon.

[0014] Furthermore, during the ultrasonic vibration assistance process, the ultrasonic vibration device C maintains a follow-up motion with the wire electrode or the workpiece to ensure that the ultrasonic wave emitted by the ultrasonic vibration device C during the ultrasonic vibration assistance process is consistent in position and direction relative to the wire electrode or the workpiece.

[0015] Furthermore, the ultrasonic vibration device A includes an ultrasonic transducer A fixed on the Z-axis slide of the machine tool, the vibration end of the ultrasonic transducer A is connected to the horn A, and the wire electrode is fixedly connected to the horn A through a cathode clamp.

[0016] Furthermore, the ultrasonic vibration device B includes a cantilever bracket 1 fixed on the XY axis slide of the machine tool, an ultrasonic transducer B is fixed on the cantilever bracket 1, the vibration end of the ultrasonic transducer B is connected to the amplitude rod B, and the workpiece is fixedly connected to the amplitude rod B through an anode clamp.

[0017] Furthermore, the ultrasonic vibration device C includes a glass cup suspended in the electrolytic cell, an ultrasonic vibration rod is suspended in the glass cup, the glass cup is immersed in the electrolyte, and the glass cup also contains liquid.

[0018] Compared with the prior art, the present invention has the following beneficial effects: in the present method for alternating ultrasonic vibration-assisted electrolytic removal of the recast layer of a straight-grained surface component, during the electrolytic cutting process of the recast layer on the surface of the straight-grained surface component of the workpiece by the wire electrode, the wire electrode and the workpiece are simultaneously subjected to ultrasonic vibrations in opposite directions perpendicular to the feed direction by the ultrasonic vibration device A and the ultrasonic vibration device B, so that the electrolysis products between the wire electrode and the workpiece flow to the area outside the electrolytic machining gap, and the electrolyte in the electrolytic machining gap flows and is renewed, and the electrolysis products in the electrolytic machining area are disturbed and dispersed by the ultrasonic vibration device C to generate micro-amplitude ultrasonic vibrations;

[0019] Compared with the existing ultrasonic vibration-assisted electrolytic machining that only makes the workpiece vibrate along the axial direction of the wire electrode, the present invention makes the wire electrode and the workpiece vibrate simultaneously in a direction perpendicular to the feed direction, thereby promoting more efficient discharge of electrolytic products in the machining area and more efficient flow renewal of the electrolyte during the electrolytic cutting process, thereby achieving high uniformity control of the flow field, improving the electrolytic removal efficiency and effect of the recast layer of the straight surface component, and improving the machining accuracy of the electrolytic removal of the recast layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the ultrasonic vibration direction of the wire electrode and the workpiece during processing of the present invention;

[0021] Figure 2 A top view of the workpiece of the present invention when it is processed in an electrolyte;

[0022] Figure 3 A schematic diagram of the flow path of electrolytic products in the electrolytic machining area when the wire electrode and the workpiece undergo ultrasonic vibration according to the present invention;

[0023] Figure 4 This is a schematic diagram of the ultrasonic vibration device A and the ultrasonic vibration device B of the present invention assisting electrolytic machining;

[0024] Figure 5 This is a schematic diagram of the structure of the ultrasonic vibration device A of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the ultrasonic vibration device B of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the ultrasonic vibration device C of the present invention.

[0027] In the figure: 1. wire electrode; 2. workpiece; 3. electrolytic cell; 4. ultrasonic vibration device A; 41. ultrasonic generator A; 42. ultrasonic transducer A; 43. horn A; 5. ultrasonic vibration device B; 51. ultrasonic generator B; 52. ultrasonic transducer B; 53. horn B; 54. cantilever bracket 1; 6. ultrasonic vibration device C; 61. ultrasonic vibration rod; 62. glass; 7. machine tool XY axis slide; 8. machine tool Z axis slide; 9. electrolyte; 10. cathode fixture; 11. anode fixture. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0029] See also Figure 1-7 The present invention provides a technical solution: an alternating ultrasonic vibration-assisted electrolytic cutting and removal processing method for a recast layer of a straight-grained surface component, the processing method comprises an ultrasonic vibration device A4 capable of driving a wire electrode 1 to generate intermittent micro-amplitude ultrasonic vibration perpendicular to its feeding direction, an ultrasonic vibration device B5 capable of driving a workpiece 2 to generate intermittent micro-amplitude ultrasonic vibration perpendicular to the feeding direction of the wire electrode 1, and an ultrasonic vibration device C6 capable of generating intermittent ultrasonic vibration in an electrolyte 9 and used to disperse electrolysis products, and the ultrasonic vibration devices A4, B5 and C6 are all controlled by digital relays to control their vibration generation time and vibration stop time;

[0030] The ultrasonic vibration device A4 includes an ultrasonic generator A41 fixed on the Z-axis slide 8 of the machine tool, the output end of the ultrasonic generator A41 is connected to an ultrasonic transducer A42, the vibration end of the ultrasonic transducer A42 is connected to a variable amplitude rod A43, and the vibration end of the variable amplitude rod A43 is in contact with the wire electrode 1; the wire electrode 1 is fixedly connected to the Z-axis slide 8 of the machine tool through a cathode clamp 10; the ultrasonic vibration device B5 includes a cantilever bracket 54 fixed on the XY-axis slide 7 of the machine tool, an ultrasonic generator B51 is fixed on the cantilever bracket 54, the output end of the ultrasonic generator B51 is connected to an ultrasonic transducer B52, and the ultrasonic transducer B52 The vibration end is connected to the amplitude variable rod B53, and the workpiece 2 is fixedly connected to the amplitude variable rod B53 through the anode clamp 11; the ultrasonic vibration device C6 includes a glass cup 62 suspended in the electrolytic cell 3, an ultrasonic vibration rod 61 is suspended in the glass cup 62, the glass cup 62 is immersed in the electrolyte 9, and the glass cup 62 also contains liquid; the ultrasonic vibration device C6 can be suspended on the Z-axis slide 8 of the machine tool to maintain follow-up movement with the wire electrode 1, and the ultrasonic vibration device C6 can also be suspended on the XY-axis slide 7 of the machine tool to maintain follow-up movement with the workpiece 2, so as to ensure that the ultrasonic wave emitted by the ultrasonic vibration device C6 in the second ultrasonic vibration-assisted process is consistent with the position and direction of the wire electrode 1 or the workpiece 2;

[0031] The specific processing process of the method is: the CNC machine tool uses the wire electrode 1 to perform electrolytic cutting processing on the surface recast layer of the straight-grained surface component of the workpiece 2. During the electrolytic cutting processing, the wire electrode 1 and the workpiece 2 are immersed in the electrolyte 9 in the electrolytic cell 3; during the electrolytic cutting processing of the wire electrode 1 on the surface recast layer of the straight-grained surface component of the workpiece 2, the ultrasonic vibration auxiliary process one and the ultrasonic vibration auxiliary process two occur intermittently; the ultrasonic vibration auxiliary process one and the ultrasonic vibration auxiliary process two occur alternately, and after the ultrasonic vibration time of the ultrasonic vibration auxiliary process one ends, the ultrasonic vibration time of the ultrasonic vibration auxiliary process two begins accordingly; the specific process of the ultrasonic vibration auxiliary process one is: the ultrasonic transducer A42 in the ultrasonic vibration device A4 and the ultrasonic transducer B52 in the ultrasonic vibration device B5 simultaneously generate micro-amplitude ultrasonic vibrations in opposite directions, and the ultrasonic transducer A42 transmits the ultrasonic vibration generated by it through the amplitude transformer A43 To the cathode fixture 10, the ultrasonic transducer B52 transmits the ultrasonic vibration it generates to the anode fixture 11 through the amplitude rod B53, so that the wire electrode 1 and the workpiece 2 simultaneously generate ultrasonic vibrations in opposite directions perpendicular to the feed direction, so that the wire electrode 1 and the workpiece 2 vibrate toward each other, and the electrolysis products between the wire electrode 1 and the workpiece 2 flow to the area outside the electrolytic machining gap; the specific process of the ultrasonic vibration assisted process 2 is: the ultrasonic vibration rod 61 in the ultrasonic vibration device C6 generates a micro-amplitude ultrasonic vibration, so that the liquid in the glass cup 62 generates ultrasonic vibration and transmits it to the electrolyte 9 in the electrolytic cell 3, and the ultrasonic vibration applies ultrasonic disturbance to the electrolyte 9 in the electrolytic machining area, and disturbs and disperses the electrolysis products in the electrolytic machining area; thereby promoting the efficient discharge of the electrolysis products in the machining area and the efficient flow renewal of the electrolyte 9 during the electrolytic cutting process, and then achieving high uniformity control of the flow field;

[0032] Furthermore, the ultrasonic vibration cycle of the ultrasonic vibration assisted process 1 includes the vibration occurrence time and the vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and the ultrasonic occurrence time are generally adjusted according to the size of the electrode and the thickness of the workpiece 2.

[0033] Furthermore, the ultrasonic vibration cycle of the ultrasonic vibration assisted process 2 includes the vibration occurrence time and the vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and the ultrasonic occurrence time are generally adjusted according to the capacity of the electrolyte 9 in the processing area.

[0034] The present embodiment discloses an alternating ultrasonic vibration-assisted electrolytic removal method for the recast layer of a straight surface component. During the electrolytic cutting process of the recast layer on the surface of a straight surface component of a workpiece 2 by the wire electrode 1, the ultrasonic vibration device A4 and the ultrasonic vibration device B5 are used to simultaneously cause the wire electrode 1 and the workpiece 2 to undergo ultrasonic vibrations in opposite directions perpendicular to the feed direction, so that the electrolysis products between the wire electrode 1 and the workpiece 2 and the original electrolyte 9 flow to an area outside the electrolytic machining gap, and the electrolyte 9 in the electrolytic machining gap undergoes flow renewal. The ultrasonic vibration device C6 generates micro-ultrasonic vibrations to disturb and disperse the electrolysis products in the electrolytic machining area, thereby promoting efficient discharge of the electrolysis products in the machining area and efficient flow renewal of the electrolyte 9 during the electrolytic cutting process, thereby achieving high uniformity control of the flow field, improving the electrolytic removal efficiency and effect of the recast layer of the straight surface component, and improving the electrolytic machining accuracy.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting, characterized in that: The processing method comprises an ultrasonic vibration device A (4) capable of driving a wire electrode (1) to generate intermittent micro-amplitude ultrasonic vibration perpendicular to its feeding direction, an ultrasonic vibration device B (5) capable of driving a workpiece (2) to generate intermittent micro-amplitude ultrasonic vibration perpendicular to the feeding direction of the wire electrode (1), and an ultrasonic vibration device C (6) capable of generating intermittent ultrasonic vibration in an electrolyte (9) and used to disperse electrolysis products, wherein the ultrasonic vibration device A (4), the ultrasonic vibration device B (5) and the ultrasonic vibration device C (6) are all controlled by digital relays to generate vibration and stop vibration. The specific processing process of the method is as follows: a CNC machine tool uses a wire electrode (1) to electrolytically cut a recast layer on a surface of a straight-grained component of a workpiece (2); during the electrolytic cutting process, the wire electrode (1) and the workpiece (2) are immersed in an electrolyte (9) in an electrolytic tank (3); during the electrolytic cutting process of the wire electrode (1) on the surface of the straight-grained component of the workpiece (2), an ultrasonic vibration-assisted process 1 and an ultrasonic vibration-assisted process 2 are also included, and the ultrasonic vibration-assisted process 1 and the ultrasonic vibration-assisted process 2 are alternately performed to promote efficient discharge of electrolytic products in the processing area and efficient flow renewal of the electrolyte (9) during the electrolytic cutting process, thereby achieving high uniformity control of the flow field; The first ultrasonic vibration-assisted process is as follows: the ultrasonic vibration device A (4) and the ultrasonic vibration device B (5) simultaneously generate micro-amplitude ultrasonic vibrations in opposite directions, so that the wire electrode (1) and the workpiece (2) simultaneously generate ultrasonic vibrations in opposite directions perpendicular to the feed direction, so that the wire electrode (1) and the workpiece (2) vibrate in opposite directions, and the electrolytic products between the wire electrode (1) and the workpiece (2) flow to an area outside the electrolytic machining gap; The second ultrasonic vibration assisted process is as follows: the ultrasonic vibration device C (6) generates micro-amplitude ultrasonic vibrations, which apply ultrasonic disturbances to the electrolyte (9) in the electrolytic machining area, thereby disturbing and dispersing the electrolytic products in the electrolytic machining area.

2. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The ultrasonic vibration cycle of the ultrasonic vibration assisted process 1 includes a vibration occurrence time and a vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and the ultrasonic occurrence time are generally adjusted according to the size of the electrode and the thickness of the workpiece (2).

3. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The ultrasonic vibration cycle of the ultrasonic vibration assisted process 2 includes a vibration occurrence time and a vibration stop time, and the vibration stop time is generally more than 5 times the vibration occurrence time. The ultrasonic stop time and the ultrasonic occurrence time are generally adjusted according to the capacity of the electrolyte (9) in the processing area.

4. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The specific process of the alternating occurrence of the ultrasonic vibration assisted process one and the ultrasonic vibration assisted process two is: after the ultrasonic vibration time of the ultrasonic vibration assisted process one ends, the ultrasonic vibration time of the ultrasonic vibration assisted process two begins.

5. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: In the second ultrasonic vibration assisted process, the ultrasonic vibration device C (6) maintains follow-up motion with the wire electrode (1) or the workpiece (2) to ensure that the position and direction of the ultrasonic wave emitted by the ultrasonic vibration device C (6) in the second ultrasonic vibration assisted process are consistent with the wire electrode (1) or the workpiece (2).

6. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The ultrasonic vibration device A (4) comprises an ultrasonic generator A (41) fixed on the Z-axis slide of the machine tool, the output end of the ultrasonic generator A (41) is connected to an ultrasonic transducer A (42), the vibration end of the ultrasonic transducer A (42) is connected to a variable amplitude rod A (43), and the vibration end of the variable amplitude rod A (43) is in contact with the wire electrode (1); the wire electrode (1) is fixedly connected to the Z-axis slide of the machine tool via a cathode clamp (10).

7. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The ultrasonic vibration device B (5) comprises a cantilever support (54) fixed on the XY axis slide of the machine tool, an ultrasonic generator (51) is fixedly provided on the cantilever support (54), an output end of the ultrasonic generator B (51) is connected to an ultrasonic transducer B (52), a vibration end of the ultrasonic transducer B (52) is connected to a horn B (53), and a workpiece (2) is fixedly connected to the horn B (53) via an anode fixture (11).

8. The method for removing the recast layer of a ruled surface component by alternating ultrasonic vibration-assisted electrolytic cutting according to claim 1, characterized in that: The ultrasonic vibration device C (6) comprises a glass cup (62) suspended in the electrolytic cell (3), an ultrasonic vibration rod (61) suspended in the glass cup (62), the glass cup (62) immersed in the electrolyte (9), and the glass cup (62) also contains liquid.

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