CN109482990A - The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining - Google Patents
The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining Download PDFInfo
- Publication number
- CN109482990A CN109482990A CN201811416749.9A CN201811416749A CN109482990A CN 109482990 A CN109482990 A CN 109482990A CN 201811416749 A CN201811416749 A CN 201811416749A CN 109482990 A CN109482990 A CN 109482990A
- Authority
- CN
- China
- Prior art keywords
- sodium nitrate
- ethylene glycol
- aluminium
- electrolyte
- electrochemical micromachining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000004411 aluminium Substances 0.000 title claims abstract description 42
- 239000003792 electrolyte Substances 0.000 title claims abstract description 41
- -1 sodium nitrate ethylene glycol Chemical compound 0.000 title claims abstract description 26
- 238000005459 micromachining Methods 0.000 title claims abstract description 23
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical group [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 32
- LYCAIKOWRPUZTN-UHFFFAOYSA-N glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 16
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 16
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- 238000003754 machining Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 4
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 210000003284 Horns Anatomy 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
- B23H3/08—Working media
Abstract
A kind of method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, belongs to technical field of electrolysis processing.The present invention is characterized in that proposing a kind of sodium nitrate ethylene glycol electrolyte and its processing method for aluminium electrochemical micromachining, it is characterised in that: solute is sodium nitrate in above-mentioned sodium nitrate ethylene glycol solution, and solvent is ethylene glycol；Concentration of the above-mentioned sodium nitrate ethylene glycol solution at 20 DEG C is 0.2 ~ 1mol/L；Above-mentioned sodium nitrate ethylene glycol solution is suitable for the electrochemical micromachining of aluminium, and the cost of material is low, and preparation method is easy, and processing quality is good.
Description
Technical field
A kind of sodium nitrate ethylene glycol electrolyte and its processing method for aluminium electrochemical micromachining, belong to Electrolyzed Processing skill
Art field.
Background technique
Aluminium is a kind of silvery white light metal, and density is small, only 2.7 g/cm3, has good conductive and heating conduction, height
Reflexive and oxidative resistance and be widely used in micro parts.In the field MEMS, aluminium is processed to core model of various shapes,
For making cavity shape complexity, the high micro parts of required precision such as have the Feed Horn of corrugated inner surface structure, also
Waveguide class device etc. for THz wave transmission.
The processing method of aluminum current mainly includes plastic processing, machining, electrical discharge machining, high energy beam machining etc..
Plastic processing is mainly used to process heavy parts, is not suitable for carrying out microfabrication.When micro-cutting processes aluminium, there is workpiece tables
The disadvantages of face easily scratches, and is easily deformed after processing, generates burr.India scholar R.K.Arya etc., which is proposed, utilizes Powder-mixed EDM
The method of processing processes aluminum matrix composite, and after being mixed into graphite particle in emulsion, material removing rate is reduced, workpiece table
Face quality is improved, but inevitably generates re cast layer in workpiece surface.Louisiana Polytechnics, the U.S.
Adams etc. processes microflute in revolving body aluminum alloy surface using ion beam, and the width of mini longitudinal channels processed is 13.2M, groove depth 4M, but there are apparent burr phenomenas for workpiece surface.
Electrochemical micromachining technology is as a kind of electrical-chemistry method technology, the basic principle is that being dissolved using Anodic
To remove material.Cathode tool is not contacted with anode workpiece in electrochemical micromachining, does not generate cutting heat, without processing hardening
And heat affected area, and cathode tool is substantially lossless.Therefore, electrochemical micromachining technology is usually used in processing various difficult cutting materials
Material and thin-walled, easily-deformable workpiece.
Electrolyte is most important component part in electrochemical micromachining system, it to the electrochemical reaction of anode material,
Rate of dissolution and machining accuracy play decisive role.Meanwhile electrolyte can also take away the bubble of machining area generation, metal
Cation, insoluble product and Joule heat etc..Since the chemical property of aluminium is more active, the Electrolyzed Processing of aluminium often selects passivation type
Electrolyte such as sodium nitrate aqueous solution.But aluminium, due to the effect of oxygen/water molecule, is easy to produce passivating film in water based electrolyte.
In process, the fault location of passivating film can generate spot corrosion first, with the continuous destruction and formation of passivating film, so that processing
Difficulty, processing quality are deteriorated.In addition, processing product of the aluminium in water based electrolyte is flocculent undissolved substance, minute yardstick is easily blocked
Gap is processed, processing stability is influenced.
A kind of sodium nitrate ethylene glycol electrolyte proposed by the present invention and its processing method for aluminium electrochemical micromachining, solution
Having determined, processing efficiency is low in traditional water based electrolyte for aluminium, and surface quality is poor, the unstable problem of process.It is of the present invention
Sodium nitrate ethylene glycol electrolyte prepare easy, at low cost, machining accuracy is high, and surface quality is good.
Summary of the invention
Present invention aims at propose a kind of method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, solution
Certainly aluminium machined surface quality in traditional water based electrolyte is poor, the low problem of machining accuracy.
A kind of method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, it is characterised in that: above-mentioned sodium nitrate
Solute is sodium nitrate in ethylene glycol electrolyte, and solvent is ethylene glycol；Concentration of the above-mentioned sodium nitrate ethylene glycol electrolyte at 20 DEG C
For 0.2 ~ 1mol/L；Machining voltage is 6V ~ 12V.
Electrochemical micromachining technology does not generate cutting heat without cutting force, and it is variable to efficiently solve aluminium in tradition machinery processing
Shape has residual stress, the poor problem of machined surface quality.Aluminium is easy to produce passivating film in water based electrolyte, so that processing
Difficulty, processing quality are deteriorated.In addition, processing product of the aluminium in water based electrolyte is flocculent undissolved substance, minute yardstick is easily blocked
Gap is processed, processing stability is influenced.And sodium nitrate ethylene glycol electrolyte of the present invention, since hydrone content is extremely low,
The generation of oxygen in process is avoided, the passivating film of aluminium surface is difficult to regenerate again after being destroyed, ensure that processed
The stability of journey.Meanwhile processing product of the aluminium in sodium nitrate ethylene glycol electrolyte be it is soluble, processing district will not be blocked
Domain ensure that the stability of processing.In general, concentration of electrolyte is higher, voltage is higher, then the efficiency of Electrolyzed Processing is higher,
But excessively high concentration of electrolyte and machining voltage will affect machining accuracy, and generate dispersion corrosion.In general, using higher
Frequency, lower duty ratio is conducive to the exclusion of machining area product, the update of electrolyte, so that processing effect is more preferable.
The method that the sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, it is characterised in that: electrolyte is dense
Spend 1mol/L, machining voltage 8V.
The method that the sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, it is characterised in that: frequency 100 ~
300KHz, duty ratio 15 ~ 30%, 0.1 ~ 0.2 μm/s of process velocity.In general, using higher frequency (being greater than 100KHz),
Lower duty ratio (less than 30%) is conducive to the exclusion of machining area product, the update of electrolyte, so that processing effect is more preferable.
The method that the sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, it is characterised in that: frequency
200KHz, duty ratio 20%, 0.2 μm/s of process velocity.
Detailed description of the invention
Fig. 1 is the schematic diagram of aluminium electrochemical micromachining；
Fig. 2 is the scanning electron microscope (SEM) photograph of embodiment 1；
Fig. 3 is the scanning electron microscope (SEM) photograph of embodiment 2；
Fig. 4 is the scanning electron microscope (SEM) photograph of embodiment 3；
Fig. 5 is the scanning electron microscope (SEM) photograph of embodiment 4；
Fig. 6 is the scanning electron microscope (SEM) photograph of embodiment 5；
Its label is entitled: 1, electrolyte；2, screw electrode；3, the pulse power；4, aluminium workpiece；5, ethylene glycol；6, sodium nitrate；7,
Deionized water.
Specific embodiment
Electrolyte 1 is poured into electrolytic bath first, submerges screw electrode 2 and aluminium workpiece 4.
The pulse power 3 is connect into positive aluminium workpiece 4, cathode connects screw electrode 2, and make pulse power supply 3 utilizes Anodic
Solution principle processes aluminium workpiece 4 by the numerical control campaign of screw electrode 2, can process slit structure.The pulse power
3 output voltage range is 5 ~ 20V, duty ratio 10 ~ 80%, frequency 1KHz ~ 500KHz.Optional 0.1 μm/s ~ 2 of process velocity range
μm/s。
Technical solution of the present invention and its advantages are described further below with reference to embodiment.Nitre is used by comparison
Acid sodium aqueous solution and sodium nitrate ethylene glycol solution carry out the effect of aluminium electrochemical micromachining, illustrate sodium nitrate ethylene glycol of the invention
Electrolyte can solve aluminium, and processing efficiency is low in traditional water based electrolyte, and surface quality is poor, the unstable problem of process.
Embodiment 1
15g sodium nitrate is added in deionized water under room temperature, is configured to 1L solution, the sodium nitrate 6 is to analyze pure, deionized water
7 be industry standard reagent.Pulse power anode is connect into aluminium workpiece, cathode connects screw electrode, using 8V voltage, 10% duty ratio,
10KHz frequency, 0.2 μm/s of process velocity.The slit that processes is deposited bright around machining area as shown in Fig. 2, slit pattern is poor
Aobvious dispersion corrosion.
Embodiment 2
1mol sodium nitrate is added in ethylene glycol under room temperature, is configured to 1L solution, the sodium nitrate 6 is to analyze pure, deionized water 5
It is pure to analyze.Pulse power anode is connect into aluminium workpiece, cathode connects screw electrode, using 6V voltage, 20% duty ratio, 200KHz frequency
Rate, 0.1 μm/s of process velocity.The slit that processes as shown in figure 3, without dispersion corrosion around machining area, but due to voltage compared with
Small, permitted feed speed also very little, processing efficiency is lower, and will appear short circuit phenomenon once in a while in processing.
Embodiment 3
1mol sodium nitrate is added in ethylene glycol under room temperature, is configured to 1L solution, the sodium nitrate 6 is to analyze pure, deionized water 5
It is pure to analyze.Pulse power anode is connect into aluminium workpiece, cathode connects screw electrode, using 8V voltage, 20% duty ratio, 200KHz frequency
Rate, 0.2 μm/s of process velocity.The slit that processes is as shown in figure 4, the slit pattern processed is good, base around machining area
, without dispersion corrosion, surface quality is good for this, and process is stablized, and slit width consistency is good.
Embodiment 4
1mol sodium nitrate is added in ethylene glycol under room temperature, is configured to 1L solution, the sodium nitrate 6 is to analyze pure, deionized water 5
It is pure to analyze.Pulse power anode is connect into aluminium workpiece, cathode connects screw electrode, using 12V voltage, 20% duty ratio, 200KHz frequency
Rate, 0.2 μm/s of process velocity.The slit that processes is as shown in figure 5, the slit width consistency processed is poor, and with electricity
Pressure increases, and will appear point corrosion around machining area, and surface quality reduces.
Embodiment 5
0.2mol sodium nitrate is added in ethylene glycol under room temperature, is configured to 1L solution, the sodium nitrate 6 is to analyze pure, deionization
Water 5 is that analysis is pure.Pulse power anode is connect into aluminium workpiece, cathode connects screw electrode, using 8V voltage, 20% duty ratio, 200KHz
Frequency, 0.2 μm/s of process velocity.The slit processed is as shown in fig. 6, substantially without dispersion corrosion, surface matter around machining area
It measures, and process is basicly stable, slit width consistency is preferable.
Claims (4)
1. a kind of method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining, it is characterised in that:
Solute is sodium nitrate in above-mentioned sodium nitrate ethylene glycol electrolyte, and solvent is ethylene glycol；
Concentration of the above-mentioned sodium nitrate ethylene glycol electrolyte at 20 DEG C is 0.2 ~ 1mol/L；
Machining voltage is 6V ~ 12V.
2. the method that sodium nitrate ethylene glycol electrolyte according to claim 1 is used for aluminium electrochemical micromachining, feature exist
In:
Concentration of electrolyte 1mol/L, machining voltage 8V.
3. the method that sodium nitrate ethylene glycol electrolyte according to claim 1 is used for aluminium electrochemical micromachining, feature exist
In:
100 ~ 300KHz of frequency, duty ratio 15 ~ 30%, 0.1 ~ 0.2 μm/s of process velocity.
4. the method that sodium nitrate ethylene glycol electrolyte according to claim 3 is used for aluminium electrochemical micromachining, feature exist
In:
Frequency 200KHz, duty ratio 20%, 0.2 μm/s of process velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416749.9A CN109482990A (en) | 2018-11-26 | 2018-11-26 | The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416749.9A CN109482990A (en) | 2018-11-26 | 2018-11-26 | The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109482990A true CN109482990A (en) | 2019-03-19 |
Family
ID=65696847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416749.9A Pending CN109482990A (en) | 2018-11-26 | 2018-11-26 | The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109482990A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560806A (en) * | 2019-08-20 | 2019-12-13 | 南京航空航天大学 | Method for finely electrolyzing and processing titanium and aluminum by sodium chloride and ethylene glycol electrolyte |
| CN111014854A (en) * | 2019-11-15 | 2020-04-17 | 鞍钢集团矿业有限公司 | Electrolyte for titanium alloy micro-electrochemical machining and preparation method thereof |
| CN111545850A (en) * | 2020-05-11 | 2020-08-18 | 南京航空航天大学 | Ethylene glycol based solution electrolysis electric spark composite wire cutting processing method |
| CN112008166A (en) * | 2019-05-29 | 2020-12-01 | 天津大学 | Electrolyte for nickel-titanium memory alloy micro-electrochemical machining |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513622A (en) * | 2011-11-09 | 2012-06-27 | 扬州大学 | Micro and fine machining method for material difficult to machine and machining system |
| CN102699454A (en) * | 2012-05-07 | 2012-10-03 | 天津大学 | Electrolytic machining system and method for foamed aluminium buffering and energy adsorbing material |
| CN103668380A (en) * | 2013-12-17 | 2014-03-26 | 清华大学 | Double-membrane side wall insulation method of electrode for electrochemical machining |
| CN107999908A (en) * | 2018-01-09 | 2018-05-08 | 河南理工大学 | A kind of production method of micro-pit array |
-
2018
- 2018-11-26 CN CN201811416749.9A patent/CN109482990A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513622A (en) * | 2011-11-09 | 2012-06-27 | 扬州大学 | Micro and fine machining method for material difficult to machine and machining system |
| CN102699454A (en) * | 2012-05-07 | 2012-10-03 | 天津大学 | Electrolytic machining system and method for foamed aluminium buffering and energy adsorbing material |
| CN103668380A (en) * | 2013-12-17 | 2014-03-26 | 清华大学 | Double-membrane side wall insulation method of electrode for electrochemical machining |
| CN107999908A (en) * | 2018-01-09 | 2018-05-08 | 河南理工大学 | A kind of production method of micro-pit array |
Non-Patent Citations (1)
| Title |
|---|
| 余宁等: "NaCl-乙二醇溶液微细电解加工Ti6Al4V实验研究", 《电加工与模具》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112008166A (en) * | 2019-05-29 | 2020-12-01 | 天津大学 | Electrolyte for nickel-titanium memory alloy micro-electrochemical machining |
| CN110560806A (en) * | 2019-08-20 | 2019-12-13 | 南京航空航天大学 | Method for finely electrolyzing and processing titanium and aluminum by sodium chloride and ethylene glycol electrolyte |
| CN111014854A (en) * | 2019-11-15 | 2020-04-17 | 鞍钢集团矿业有限公司 | Electrolyte for titanium alloy micro-electrochemical machining and preparation method thereof |
| CN111545850A (en) * | 2020-05-11 | 2020-08-18 | 南京航空航天大学 | Ethylene glycol based solution electrolysis electric spark composite wire cutting processing method |
| CN111545850B (en) * | 2020-05-11 | 2021-06-08 | 南京航空航天大学 | Ethylene glycol based solution electrolysis electric spark composite wire cutting processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109482990A (en) | The method that sodium nitrate ethylene glycol electrolyte is used for aluminium electrochemical micromachining | |
| Zeng et al. | A study of micro-EDM and micro-ECM combined milling for 3D metallic micro-structures | |
| Cheng et al. | Study of gas film quality in electrochemical discharge machining | |
| Thanigaivelan et al. | Electrochemical micromachining of stainless steel with acidified sodium nitrate electrolyte | |
| CN106270844B (en) | Microgap is electrolysed auxiliary laser fine machining method and device | |
| CN108372335B (en) | A kind of electrochemical machining method in intensive rectangle hole | |
| CN106914666B (en) | A kind of preparation method and array inclined hole cathode of Electrolyzed Processing array inclined hole cathode | |
| CN109570666A (en) | It is electrolysed linear cutter bipolarity tool-electrode and production and processing method | |
| CN101085483A (en) | Combinational processing method for micro-array axle hole | |
| CN106881507B (en) | A kind of device and electrochemical machining method for Electrolyzed Processing plane complications group's groove | |
| Han et al. | Effects of polarization on machining accuracy in pulse electrochemical machining | |
| CN109648165A (en) | A kind of electrolyte of copper micro-electrochemical machining jet stream processing and its preparation and application method | |
| Xianghe et al. | A high efficiency approach for wire electrochemical micromachining using cutting edge tools | |
| CN106881508B (en) | A kind of double hyer insulation plate surface texture electrolytic tool cathode and preparation method thereof | |
| Wang et al. | Fabrication of disk microelectrode arrays and their application to micro-hole drilling using electrochemical micromachining | |
| CN106757263B (en) | A kind of metal surface nanosecond pulse plasma prepares the solution and preparation method of nano particle | |
| CN105728874B (en) | The electrochemical machining method and its device of superfine back taper hole | |
| CN106319614A (en) | Method for processing microstructural array | |
| CN104511669A (en) | Electrochemical machining method of disc array group electrodes with large length-to-diameter ratio | |
| CN102528187B (en) | Reversed alignment electrochemical discharge machining method and device | |
| CN103990874A (en) | Non-water-based electrolyte for titanium alloy electrolytic machining and preparation method thereof | |
| CN106891069B (en) | A kind of electrochemical machining method of double hyer insulation plate tool cathode surface texture | |
| Lin et al. | Electrochemical machining technology and its latest applications | |
| CN104439573A (en) | Technology for masking electrolytic machining of TC4 titanium alloy through sodium nitrate electrolyte solution | |
| Wang et al. | Electrochemical Machining of Turbulated Cooling Channel Using Gelatinous Electrolyte |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
|
| RJ01 | Rejection of invention patent application after publication |