CN207508463U - A kind of rotary laminate electrode electric discharge device - Google Patents
A kind of rotary laminate electrode electric discharge device Download PDFInfo
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- CN207508463U CN207508463U CN201721219440.1U CN201721219440U CN207508463U CN 207508463 U CN207508463 U CN 207508463U CN 201721219440 U CN201721219440 U CN 201721219440U CN 207508463 U CN207508463 U CN 207508463U
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Abstract
The utility model discloses a kind of rotary laminate electrode electric discharge devices, and including workpiece, tool-electrode and the pulse power, tool-electrode includes the circular multi-layer rotary thin electrode piece being fabricated to using multilayer copper foil material.Rotary thin electrode piece is installed along in the rotary shaft of numerically control grinder (diameter of electrode slice is bigger 0.5~5mm than the diameter of Grinding wheel holder), and with Grinding wheel holder rotary motion together with Grinding wheel holder and flange clamp.The pulse power is connect by electrographite brush with electrically conductive workpiece both ends in Grinding wheel holder, electrically conductive workpiece is placed on horizontal table, so that pulse spark discharge is generated between the electrode slice and workpiece of rotation, electrode slice is reciprocating in workpiece surface along the digital controlled tracing of setting, so as in the high-precision surface of workpiece, once process multiple smooth micro-cannelure array structures side by side.
Description
Technical field
The utility model belongs to micro discharge processing technology apparatus field more particularly to a kind of rotary laminate electrode electric discharge adds
Tooling is put.
Background technology
Specific micro-nano structure is processed in component surface, can generate new engineering application value, but micro-nano knot
Structure process relatively difficult, the processing especially in terms of micron scale structures, there has been no high-efficiency high-accuracy method for processing forming and
Device.
At present, traditional micro discharge processing method can process micro array structure in workpiece surface, and still, traditional is micro-
Discharge-treating method can not ensure the machining accuracy of very low power structure.Although added using traditional wheel grinding and spark discharge
Work method can process high-precision micro array structure, but its processing efficiency is very low, during the manufacturing, nothing
Method is widely used and develops.Moreover, during wheel grinding, need that frequently grinding wheel is modified and is difficult to control.
Utility model content
The purpose of this utility model is to provide a kind of rotary laminate electrode electric discharge devices, it is intended to solve existing skill
It can not be in the microarray knot that the highly-efficient processing of workpiece to be machined surface one time goes out multiple micro array structures and guarantee is processed in art
The machining accuracy of structure.
The utility model is realized in this way a kind of rotary laminate electrode electric discharge device, for being carried out to workpiece
Processing, the rotary laminate electrode electric discharge device include tool-electrode, for provide pulse electricity and with the workpiece electricity
Property the connection and pulse power, the rotating driver for driving tool-electrode rotation that are electrically connected with the tool-electrode
And the removable drive for the rotating driver to be driven to be moved in space, the tool-electrode include generating electricity
Spark is with the multiple electrodes piece of processing the workpiece and for clamping multiple electrode slices and connecting with the rotating driver
The clamp assemblies connect, the clamp assemblies are electrically connected the pulse power, and the rotating driver passes through the clamp assemblies
The electrode slice is driven to rotate.
Further, the electrode slice is ring-type, and the ring electrode piece is included by the interior confession set outward the clamping
The internal ring portion of component clamping and the outer portion for being connected on the internal ring portion and being generated between the workpiece electric spark.
Further, the tool-electrode, which further includes, is made of an electrically conducting material and is arranged between the adjacent electrode slice
Gasket, the gasket is between the round and internal ring portion positioned at the two adjacent electrode slices and electrical communication two is adjacent
The electrode slice, the diameter of the gasket is less than the diameter of the electrode slice.
Further, the quantity of the electrode slice is three, the internal ring portion of three electrode slices and is arranged on
Pole piece conductive part is collectively formed in gasket between the adjacent internal ring portion；The common shape of the outer portion of three electrode slices
Into electro-discharge machining portion.
Further, the clamp assemblies include the Grinding wheel holder and folder that are electrically held on the pole piece conductive part both sides
It is held in the flange clamp of the Grinding wheel holder both sides.
Further, the Grinding wheel holder includes electrically being held on the of the internal ring portion of the pole piece conductive part side
One grinding wheel and the internal ring portion that the pole piece conductive part opposite side is oppositely arranged and be electrically held on first grinding wheel
The second grinding wheel.
Further, the flange clamp include the clamp flange for being held on the first grinding wheel side and with it is described tight
Gu flange is oppositely arranged and is held on the locating flange of the second grinding wheel side.
Further, the locating flange rotatable connection is in the rotating driver；The clamp flange, first sand
Wheel, the pole piece conductive part, second grinding wheel and the locating flange are set up in parallel successively.
Further, the rotary laminate electrode electric discharge device further includes brush, and described brush one end electrically connects
It connects the pulse power, the brush other end sliding contact and is electrically connected at first grinding wheel towards the clamp flange
Surface on.
Further, the workpiece, the pulse power, the brush and the tool-electrode be electrically connected successively and
The workpiece sets to generate workpiece described in electrical discharge machining within a predetermined distance with the tool-electrode.
The utility model has the technical effect that relative to the prior art：Rotary laminate electrode provided by the utility model is put
Electric machining device, using efficient fine electric spark discharge-treating method, by using multiple high-speed rotating thin electrodes
Piece makes to generate fine electric spark between multiple thin electrode pieces and workpiece, so as to carry out electro-discharge machining to workpiece.It is driven mobile
Under the driving of device and rotating driver, the electrode slice of tool-electrode can pass through fine electrical fire in the depth direction of feed of workpiece
The material of flower electro-discharge machining removal workpiece.In this way, efficiently multiple microarrays can be processed with high-precision on the surface of workpiece
Structure.
Description of the drawings
Fig. 1 is a kind of structural representation for rotary laminate electrode electric discharge device that the utility model embodiment provides
Figure.
Fig. 2 is the structure diagram of the tool-electrode of the rotary laminate electrode electric discharge device of Fig. 1.
Fig. 3 is the partial enlarged view at the A of Fig. 1.
Fig. 4 is the structure diagram of the electrode slice of the rotary laminate electrode electric discharge device of Fig. 1.
Fig. 5 is that the pole piece discharge part of the rotary laminate electrode electric discharge device of Fig. 1 and the structure of pole piece conductive part are shown
It is intended to.
Attached figure label relationship corresponding with title is as follows：
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, it is to be appreciated that term " thickness ", " on ", " under ", " vertical ", " parallel ",
The orientation or position relationship of the instructions such as " bottom ", " angle " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify description rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In the utility model unless specifically defined or limited otherwise, the terms such as term " installation ", " connection " should be done extensively
Reason and good sense solution, for example, it may be being fixedly connected or being detachably connected or integral；Can be mechanical connection, it can also
It is electrical connection；Can be directly connected, can also be indirectly connected by intermediary, can be connection inside two elements or
The interaction relationship of two elements.
It please refers to Fig.1 to Fig. 2, rotary laminate electrode electric discharge device 100 provided by the utility model is used for adding
Work workpiece 90, including：Tool-electrode 20, for pulse electricity is provided and be electrically connected with the workpiece 90 and with the tool-electrode
20 pulse powers 80 being electrically connected, for driving rotating driver 10 that the tool-electrode 20 rotates and for driving
State the removable drive (not drawn in figure) that rotating driver 10 moves in space.Removable drive described in the present embodiment is tool
There is the numerically control grinder (not drawn in figure) of three-shaft linkage system, the rotating driver 10 is transferred for one end in the numerically control grinder
Rotary shaft 10, the other end of rotary shaft 10 are connected on the tool-electrode 20.The tool-electrode 20 includes generating electricity
Spark with the multiple electrodes piece 21 of processing the workpiece 90 and for clamp multiple electrode slices 21 and with the rotary shaft
The clamp assemblies 30 of 10 connections, the clamp assemblies 30 are electrically connected the pulse power 80, and the rotary shaft 10 is by described
Clamp assemblies 30 drive the electrode slice 21 to rotate, the electrode slice 21 be made of an electrically conducting material and with 30 electricity of the clamp assemblies
Property connection.
Specifically, the material of workpiece 90 can be conductive material (such as：Steel, hard alloy etc.) or it is non-conductive
Material (such as：Glass, sapphire etc.), when workpiece 90 is electrically non-conductive material, induced discharge need to be carried out to workpiece 90.It is preferred that
Ground, the material of workpiece 90 is conductive material in the present embodiment.Pulse voltage ranging from 20~150V of the pulse power 80, arteries and veins
Frequency range is rushed as 100~5000Hz, pulse width range is 0.2~100 μ s.Preferably, the pulse power 80 in the present embodiment
Pulse voltage for 50V, pulse frequency 2000Hz, pulse width is 50 μ s.
According to the rotary laminate electrode electric discharge device 100, the utility model embodiment additionally provides one kind and puts
Electric processing method, for being processed to workpiece 90, including following procedure of processing：
Preparation process：Prepare the rotary laminate electrode electric discharge device 100；
Workpiece initialization step：The workpiece 90 is placed in place the rotary laminate electrode is coordinated to discharge
100 electro-discharge machining of processing unit (plant)；
Procedure of processing：The rotary shaft 10 drives 20 high speed rotation of tool-electrode, and the removable drive drives institute
It states rotary shaft 10 to move in space, is formed and discharged back between the workpiece 90, the tool-electrode 20 and the pulse power 80
Road generates fine electric spark electric discharge to corrode the workpiece 90 between the electrode slice 21 and the workpiece 90.Pass through electrode slice
21 corrode the workpiece 90 along depth direction of feed a by fine electric spark electro-discharge machining, so as on the surface of workpiece 90
High efficiency once processes multiple smooth micro-cannelure array structures side by side, and the electric spark so as to fulfill conductive hard brittle material is put
The efficiency of electro-discharge machining and the quality of electro-discharge machining can be greatly improved in electric machining.
The rotary laminate electrode electric discharge device 100 that the utility model embodiment is provided, by rotary shaft 10
On numerically control grinder, efficient fine electric spark discharge-treating method is recycled, makes multiple thin electrode pieces 21 at a high speed
Rotation, it is preferable that the rotary speed N of rotary shaft 10 is 1000~5000 revs/min.Multiple thin electrode pieces 21 are towards workpiece 90
Fine electric spark is generated between circumferential side surface and the workpiece 90, so as to carry out electro-discharge machining to workpiece 90.In numerically control grinder
Three-shaft linkage system drive under, electrode slice 21 can be discharged on the depth direction of feed a of workpiece 90 by fine electric spark
The material of processing removal workpiece 90, ranging from 10~200mm/min of feed speed, ranging from 10~100 μm of feeding depth.
Preferably, the rotary speed N of electrode slice 21 is 1000 revs/min in the present embodiment, and feeding depth is 50 μm, and feed speed a is
20mm/min。
In this way, multiple micro array structures efficiently can be processed with high-precision on the surface of workpiece 90 by electro-discharge machining
(figure is not drawn).The micro array structure can be micro-cannelure array structure 91, the trench cross-section shape of micro-cannelure array structure 91
Shape can be rectangle, trapezoidal or V-arrangement, and the wherein width range of groove is 10~800 μm, and the spacing range between adjacent trenches is
20~500 μm, ranging from 10~100 μm of the groove depth of groove, the surface roughness R for the micro-cannelure array structure 91 processeda's
Ranging from 0.01~0.5 μm.Preferably, the micro-cannelure array structure 91 processed in the present embodiment is trapezoidal groove, described
Trapezoidal groove width is 535 μm, and the spacing between the adjacent trapezoidal groove is 125 μm, and the trapezoidal groove depth is 45 μm.
Further, the electrode slice 21 is ring-type, and the electrode slice 21 is included by the interior confession set outward the clamping
The internal ring portion 211 and be connected on the internal ring portion 211 and electric spark is generated between the workpiece 90 that component 30 clamps
Outer portion 212.The internal ring portion 211 is set in the rotary shaft 10 and with 10 high-speed rotation of rotary shaft.This reality
It is the common thin pole piece made of copper foil to apply electrode slice 21 in example, and thickness range is 5~800 μm.
Please refer to Fig. 3 to Fig. 4, further, the tool-electrode 20, which further includes, to be made of an electrically conducting material and sets
Gasket 22 between the adjacent electrode slice 21.The gasket 22 is for circular ring shape and positioned at the two adjacent electrode slices 21
The internal ring portion 211 between.The diameter of the gasket 22 is less than the diameter of the electrode slice 21.Specifically, gasket 22 is arranged
In in the rotary shaft 10 and the adjacent electrode slice 21 of electrical communication, the thickness range of gasket 22 is 20~500 μm.Electrode
The diameter of piece 21 is bigger 0.5~5mm than the diameter of gasket 22.Preferably, in the present embodiment the diameter of electrode slice 21 than gasket 22
The big 1mm of diameter.
Please refer to Fig. 5, further, the quantity of the electrode slice 21 is three, in other embodiments can root
The quantity of electrode slice 21 is set according to actual needs.The thickness of three pole piece main bodys 211 is both preferably 500 μ in the present embodiment
m.The internal ring portion 211 of three electrode slices 21 and the gasket 22 being arranged between the adjacent internal ring portion 211 are common
Similar shape is into pole piece conductive part 70；Pole piece discharge part 60 is collectively formed in the outer portion 212 of three electrode slices 21.Pass through electricity
Property the connection pole piece conductive part 70, can be primary so as to make to generate electric spark between pole piece discharge part 60 and workpiece 90
Three micro-cannelure array structures 91 are processed side by side, greatly improve processing efficiency.
Further, the electrode slice 21 of arbitrary neighborhood and described between the adjacent electrode slice 21
Gasket 22 surrounds to form annular grind reliefs 50 jointly, and the groove width of the grind reliefs 50 is equal with the thickness of the gasket 22.At this
Ranging from 20~500 μm of the groove width of grind reliefs 50 in embodiment, quantity are two.Tool-electrode 20 is in electric discharge machining process
Clast can be discharged by two grind reliefs 50.
Further, the clamp assemblies 30 include the Grinding wheel holder 32 for being electrically held on 70 both sides of pole piece conductive part
And it is held on the flange clamp 31 of 32 both sides of Grinding wheel holder.The Grinding wheel holder 32 is lateral from the two of pole piece conductive part 70
Multiple electrode slices 21 and gasket 22 are clamped among it so that are kept good between gasket 22 and electrode slice 21 and electrically connected
It connects.
Further, the Grinding wheel holder 32 includes the internal ring portion for being electrically held on 70 side of pole piece conductive part
It 211 the first grinding wheel 321 and is oppositely arranged with first grinding wheel 321 and to be electrically held on the pole piece conductive part 70 another
Second grinding wheel 322 of the internal ring portion 211 of side.First grinding wheel 321 is respectively provided with good lead with second grinding wheel 322
It electrically, can pole piece conductive part 70 described in good electrical communication.First grinding wheel 321 and the second grinding wheel 322 are sheathed on described respectively
The pole piece conductive part 70 is compressed in rotary shaft 10 and in opposite directions, pole piece conductive part 70 is made to be fixed in the rotary shaft 10.
Further, the diameter of first grinding wheel 321 is less than the diameter of the electrode slice 21, second grinding wheel 322
Diameter be less than the electrode slice 21 diameter, so that tool-electrode 20 can carry out workpiece 90 from the both sides of pole piece discharge part 60
Processing.The diameter of the electrode slice 21 is bigger 0.5~5mm than the diameter of the first grinding wheel 321 and the second grinding wheel 322.In the present embodiment
In, the diameter of 22 three of the first grinding wheel 321, the second grinding wheel 322 and gasket is equal.The diameter of electrode slice 21 is than the first grinding wheel
The 321 big 1mm of diameter, equally, the diameter of electrode slice 21 is than the diameter also big 1mm of the second grinding wheel 322.
The flange clamp 31 include the clamp flange 311 for being held on 321 side of the first grinding wheel and with it is described tight
Gu flange 311 is oppositely arranged and is held on the locating flange 312 of 322 side of the second grinding wheel.The clamp flange 311 and institute
It states locating flange 312 and clamps first grinding wheel 321 and second grinding wheel 322 in opposite directions respectively.
Further, the clamp flange 311 is arranged with the locating flange 312 and is fixed on the rotary shaft 10
On.The clamp flange 311, first grinding wheel 321, the pole piece conductive part 70, second grinding wheel 322 and described fixed
Position flange 312 is set up in parallel and is rotated under the drive of the rotary shaft 10 around the central axis of the rotary shaft 10 successively.
Further, the rotary laminate electrode electric discharge device 100 further includes brush 40.The present embodiment center brush
40 be electrographite brush.Described 40 one end of brush is electrically connected the pulse power 80,40 other end sliding contact of brush and
First grinding wheel 321 is electrically connected at towards on the surface of the clamp flange 311.First grinding wheel 321 is around rotary shaft
During 10 central axis rotation, brush 40 slides on the surface of the first grinding wheel 321 and keeps electrically connecting with the first grinding wheel 321
It connects, so that pole piece discharge part 60 can continue to generate electric spark between the workpiece 90.
Further, the workpiece 90, the pulse power 80, the electrographite brush 40 and the tool-electrode 20 according to
Secondary electric connection and the workpiece 90 set the electric spark satisfaction pair so as to generation with the tool-electrode 20 with suitable distance
The process requirements of workpiece 90.
Below in conjunction with the concrete structure and attached drawing of the present embodiment, the rotary lamination provided the utility model embodiment
The course of work of electrode discharge processing unit (plant) is described：
Clamp flange 321 is oppositely arranged with locating flange 312 and is arranged and is fixed on one end of rotary shaft 10, rotary shaft 10
The other end transfer in numerically control grinder, the three-shaft linkage system that numerically control grinder has causes rotary shaft 10 while rotating can also
Spatially press desired trajectory operation.
Three thin electrode pieces 21 are mounted between the first grinding wheel 321 and the second grinding wheel 322 of Grinding wheel holder 32, three
Electrode slice 21 is arranged at intervals, and gasket 22 is set between adjacent electrode slice 21.Then Grinding wheel holder 32 together with 21 He of electrode slice
Gasket 22 is sheathed on one end of rotary shaft 10 and is fixed between clamp flange 321 and locating flange 312 together.
Clamp flange 321 towards locating flange 322 direction axial compression the first grinding wheel 321 and the second grinding wheel 322, so as to reach
To the purpose for fixing three electrode slices 21.
40 one end of electrographite brush is electrically connected a pole of the pulse power 80, and the other end slides and is electrically connected the first grinding wheel
321, electrically conductive workpiece 90 is electrically connected another pole of the pulse power 80.
While three electrode slices 21 are with 10 high speed rotation of rotary shaft, in the driving of numerically control grinder numerical control linkage system
Under, three electrode slices 21 are moved along the digital control processing run trace of setting, are produced between high-speed rotating electrode slice 21 and workpiece 90
Raw fine electric spark electric discharge removes the surfacing of workpiece 90 along depth direction of feed a by the TRANSIENT HIGH TEMPERATURE of fine electric spark,
Thus the surface of workpiece 90 is once-forming, highly-efficient processing goes out a plurality of smooth micro-cannelure array structure 91 side by side.
Rotary 100 adaptability of laminate electrode electric discharge device that the utility model embodiment is provided than wide,
A variety of three-dimensional microarrays structures 91 can be processed on the surface of arbitrary workpiece 90.The loss of electrode slice 21 is less, does not need to frequency
Numerous replacement electrode slice 21, and high-speed rotating electrode slice 21 can carry out itself shape and circularity self-regeneration, processing effect
Rate and high precision machining once-forming can process a plurality of micro-cannelure array structure 91 side by side, processing efficiency are greatly improved, tool
There is very high machining accuracy.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of rotary laminate electrode electric discharge device, for being processed to workpiece, which is characterized in that described rotary
Laminate electrode electric discharge device include tool-electrode, for provide pulse electricity and with the workpiece be electrically connected and with the work
It is the pulse power that tool electrode is electrically connected, described for the rotating driver that drives tool-electrode rotation and for driving
The removable drive that rotating driver moves in space, the tool-electrode include generating electric spark to process the work
The multiple electrodes piece of part and the clamp assemblies for clamping multiple electrode slices and being connect with the rotating driver, it is described
Clamp assemblies are electrically connected the pulse power, and the rotating driver drives the electrode slice to turn by the clamp assemblies
It is dynamic.
2. rotary laminate electrode electric discharge device according to claim 1, it is characterised in that：The electrode slice is ring
Shape, the electrode slice include by the interior internal ring portion clamped for the clamp assemblies set outward and are connected to the internal ring portion
Outer portion upper and that electric spark is generated between the workpiece.
3. rotary laminate electrode electric discharge device according to claim 2, it is characterised in that：The tool-electrode is also
Including the gasket for being made of an electrically conducting material and being arranged between the adjacent electrode slice, the gasket is for circle and positioned at two-phase
Between the internal ring portion of the adjacent electrode slice and the adjacent electrode slice of electrical communication, the diameter of the gasket are less than institute
State the diameter of electrode slice.
4. rotary laminate electrode electric discharge device according to claim 3, it is characterised in that：The number of the electrode slice
It is three to measure, the internal ring portion of three electrode slices and the common shape of gasket being arranged between the adjacent internal ring portion
Into pole piece conductive part；Pole piece discharge part is collectively formed in the outer portion of three electrode slices.
5. rotary laminate electrode electric discharge device according to claim 4, it is characterised in that：The clamp assemblies packet
Include the Grinding wheel holder for being electrically held on the pole piece conductive part both sides and the flange clamp for being held on the Grinding wheel holder both sides.
6. rotary laminate electrode electric discharge device according to claim 5, it is characterised in that：The Grinding wheel holder packet
It includes the first grinding wheel of the internal ring portion for being electrically held on the pole piece conductive part side and opposite with first grinding wheel sets
Put and be electrically held on the second grinding wheel of the internal ring portion of the pole piece conductive part opposite side.
7. rotary laminate electrode electric discharge device according to claim 6, it is characterised in that：The flange clamp packet
It includes the clamp flange for being held on the first grinding wheel side and is oppositely arranged with the clamp flange and is held on described second
The locating flange of grinding wheel side.
8. rotary laminate electrode electric discharge device according to claim 7, it is characterised in that：The locating flange rotation
Turn to be connected to the rotating driver；The clamp flange, first grinding wheel, the pole piece conductive part, second grinding wheel
And the locating flange is set up in parallel successively.
9. rotary laminate electrode electric discharge device according to claim 7, it is characterised in that：The rotary lamination
Electrode discharge processing unit (plant) further includes brush, and described brush one end is electrically connected the pulse power, and the brush other end is slided
Dynamic contact and first grinding wheel is electrically connected at towards on the surface of the clamp flange.
10. rotary laminate electrode electric discharge device according to claim 9, it is characterised in that：It is the workpiece, described
The pulse power, the brush and the tool-electrode be electrically connected successively and the workpiece with the tool-electrode with scheduled
Distance sets to generate workpiece described in electrical discharge machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219440.1U CN207508463U (en) | 2017-09-21 | 2017-09-21 | A kind of rotary laminate electrode electric discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219440.1U CN207508463U (en) | 2017-09-21 | 2017-09-21 | A kind of rotary laminate electrode electric discharge device |
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| Publication Number | Publication Date |
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| CN207508463U true CN207508463U (en) | 2018-06-19 |
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ID=62533722
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598311A (en) * | 2017-09-21 | 2018-01-19 | 深圳大学 | A kind of rotary laminate electrode electric discharge device and method |
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2017
- 2017-09-21 CN CN201721219440.1U patent/CN207508463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598311A (en) * | 2017-09-21 | 2018-01-19 | 深圳大学 | A kind of rotary laminate electrode electric discharge device and method |
| CN107598311B (en) * | 2017-09-21 | 2023-11-10 | 深圳大学 | Rotary laminated electrode electric discharge machining device and method |
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