CN101524778A - Slotted electrolytic machining method and slotted tool - Google Patents
Slotted electrolytic machining method and slotted tool Download PDFInfo
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- CN101524778A CN101524778A CN200910025803A CN200910025803A CN101524778A CN 101524778 A CN101524778 A CN 101524778A CN 200910025803 A CN200910025803 A CN 200910025803A CN 200910025803 A CN200910025803 A CN 200910025803A CN 101524778 A CN101524778 A CN 101524778A
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- 238000003754 machining Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 58
- 239000003792 electrolyte Substances 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000005868 electrolysis reaction Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a slotted electrolytic machining method and a slotted tool and belongs to the technical field of electrolytic machining. The slotted electrolytic machining method is characterized by comprising the following steps: firstly, a formed hollow metal pipe is adopted as a tool electrode, wherein the pipe wall is provided with a plurality of discharging holes regularly distributed; secondly, when in work, electrolyte flows into the hollow metal pipe and is sprayed out of the holes of the pipe walls, and is directly sprayed to the processed surface of a part to form a square impact flow mode of an active control flow field; thirdly, the tool electrode is connected with a power supply cathode, and a processed workpiece is connected with the power supply anode. The slotted tool is characterized by comprising an inlet pipe electrode and an inlet pipe electrode fixture used for connecting the inlet pipe electrode with an electrolyte supply pipe, wherein the pipe wall of the inlet pipe electrode is provided with a plurality of discharging holes regularly distributed. The electrode can realize processing of curve cutting, jacking, twisting narrow slit forming, and the like. Because the electrode has simple structure and less electricity consumption when in processing, and is suitable to a plurality of electrodes to be processed simultaneously, the invention can obviously improve the processing efficiency.
Description
Technical field
The present invention relates to a kind of novel slotted electrolytic machining method and grooving tool, belong to technical field of electrolysis processing.
Background technology
Electrolyzed Processing is to utilize the electrochemistry anodic solution takes place in electrolyte metal principle to work the work piece into a kind of special process method of shape.Have that instrument is lossless, cost is low, production efficiency is high, machined surface quality, with advantages such as material hardness is irrelevant.Therefore, Electrolyzed Processing has significant advantage in the processing of difficult-to-machine material part, complicated shape and thin-walled parts.
Along with the continuous development of aircraft industry, large amount of complex, thin-walled parts all adopt difficult-to-machine material, and especially in the aero-engine part, blisk of engine, casing all adopt difficult-to-machine materials such as high temperature alloy, titanium alloy.Such component structural complexity of while, the requirement on machining accuracy height, its manufacturing technology has become the common difficult problem of paying close attention in the world.In the processing of aero-engine blisk,, repeat tens of fluting processing for passage between the leaf that forms distortion.Traditional fluting processing method mainly contains metal cutting processing, Electrolyzed Processing, spark machined and Wire EDM etc. at present.The aero-engine part adopts difficult-to-machine material more, and the tool for cutting machining consumption is big, cost height, the interference region that also exists cutter to process at some narrow passage leaf disk-like accessory.Spark machined, working (machining) efficiency is low, and export license is big, and finished surface can form recast layer and micro-crack.In the Wire EDM, the wire work in-process is the straight line of tightening, so generally can only realize straight line generate Machining of Curved Surface, can't carry out complex-curved processing.Electrolyzed Processing relies on then that instrument is lossless, cost is low, production efficiency is high, machined surface quality, with advantages such as material hardness is irrelevant, in the fluting processing of difficult-to-machine material, have outstanding advantage.
Electrolyzed Processing fluting means in the past, usually adopting cross section is the moulding hollow electrode of triangle or rectangle, adopt seam shape liquid outlet (see article " the negative electrode design of the accurate generate Electrolyzed Processing of Kang Min, Xu Jiawen ' integral wheel ' tool technique; 2001 (10); 21-23 " and " design of Zhu Yongwei, Hu Pingwang, Xu Jiawen ' integral wheel numerical control generate Electrolyzed Processing negative electrode ' the accurate manufacturing technology of aviation; 2000 (6), 25-27 ").Above-mentioned electrode shape complexity, processing difficulties, the test preparatory period is long.Owing to have the preshoot effect during electrolyte flow, adopt seam shape liquid outlet, shown in Fig. 6 (A), the phenomenon of liquid outlet far-end flow much larger than near-end can appear, near-end is because the little liquid deficient region that often occurs of flow, can't in time take away elaboration products, the near-end of therefore being everlasting easily is short-circuited, and causes workpiece and electrode damage.Such structure tool electrode is when the processing penetrating via, as Fig. 7 (A-B), when tool-electrode 14 is worked into part and runs through, electrolyte directly flows away and then can't flow through sidewall areas to be processed from penetrating via, original flow field is destroyed, processing can't continue, and therefore, must setting up sacrificial metal layer 16 for 15 times at part blank as Fig. 7 (C), to keep the flow field constant.Simultaneously, when the wide part of machining large or groove passage, with the passage surplus all removal can working (finishing) area to occur excessive, cause processing electric current excessive.Therefore, be necessary that project organization is simple, but the ACTIVE CONTROL flow field promptly can adapt to the narrow groove processing of distortion, can adapt to the tool-electrode of sipes processing again.
Summary of the invention
The object of the invention is to overcome the narrow groove of the unmanageable distortion of metal cutting, electric spark fluting efficient is low, surface quality is poor, Wire EDM can't process non-straight burr generate curved surface and traditional electrical is untied deficiencies such as the sipes power consumption is big, negative electrode difficult processing, and a kind of slotted electrolytic machining method and grooving tool are provided.Make it can realize twisting narrow groove processing, can realize the sipes processing that big surplus is removed again.
A kind of slotted electrolytic machining method is characterized in that: (1), employing moulding hollow metal pipe have the fluid group hole that rule is arranged as tool-electrode on its tube wall; Arrange according to qualifications according to tool-electrode shape and machining locus in its aperture, position.(2), in when work, electrolyte flows into hollow metal pipe and also sprays in the aperture of tube wall, directly sprays to the part surface to be machined, forms square impact formula pipeline mode; By changing the distribution control flow field in hole; (3), tool-electrode links to each other with power cathode, workpiece to be machined links to each other with the positive pole of power supply; (4), adopt single head feed liquor or double end feed liquor, under the numerical control actuator drives, finish curvilinear cut, jacking, processing such as distortion narrow slit moulding.
Above-mentioned slotted electrolytic machining method adopts single head feed liquor mode, i.e. hollow metal pipe electrode one end sealing, and other end feed liquor, electrolyte flows into from inlet, sprays to machined surface from aperture.
Above-mentioned slotted electrolytic machining method, when adopting double end feed liquor mode, promptly hollow metal pipe electrode two ends all are inlet, electrolyte flows into simultaneously from the two ends inlet, sprays to machined surface from aperture.
A kind of fluting Electrolyzed Processing instrument is characterized in that: comprise the feed tube electrode, be used to connect the feed tube electrode holder of feed tube electrode and electrolyte feed liquid pipeline, have the fluid group hole that rule is arranged on the above-mentioned feed tube electrode tube wall.
Above-mentioned feed tube electrode is the craspedodrome type, also can be shaped form, U type.
Beneficial effect of the present invention is
1, the invention provides the electrolysis grooving tool in a kind of ACTIVE CONTROL flow field, adopt the hole as liquid outlet, can force the aperture ejection of electrolyte from assigned address, change the position in hole, the flow field changes immediately, can realize Active Flow Control.As Fig. 6 (B), adopt the aperture liquid outlet will significantly relax electrolyte preshoot effect, stable in liquid outlet near-end flow field, flow is big, has solved the liquid deficient region problem in the flow field.Simultaneously, when processing penetrating via part, adopt double group's pore electrod 17 of the present invention, as Fig. 7 (D-F), this structure can be controlled electrolyte and spray to the blank sidewall by specified angle, tool-electrode is undergone mutation in the flow field still can continue processing down, realizes that need not sacrifice layer directly processes penetrating via.Therefore, separate the fluting instrument with traditional electrical and compare, have significant advantage.
2, the present invention has been for distortion, narrow complex passages provides a kind of effective processing method, the thin metal pipe that adopts caliber and groove to be processed or seam to adapt, and by movement locus optimization, the cutter interference district that can avoid machining to be prone to.Simultaneously since the present invention to have an electrode manufacturing simple, power consumption of polymer processing is low, electrode is produced advantages such as easy in batches, can make multi-electrode be processed into possibility simultaneously.For example between the blisk leaf in the aero-engine in the processing of passage,, just can shorten the process-cycle greatly, significantly improve working (machining) efficiency if can realize that passage is processed simultaneously between many leaves;
3, the invention provides a kind of curve electrolysis cutting method,, design suitable curve electrode, optimize, finish the processing of various complex profiles by TRAJECTORY CONTROL, flow field according to curved surface to be processed.Simultaneously, because advantage such as lossless, the processing of the electrode of Electrolyzed Processing own and material hardness be irrelevant, for the Machining Complicated Profile of difficult-to-machine materials in a large number provides a kind of new method.Aero-engine casing for example, because its material is a difficult-to-machine material, its volume is big, traditional machining tool serious wear, efficient is low, if adopt the curve electrolysis to remove most of allowance, promptly can save cost, can increase work efficiency again;
4, the invention provides a kind of U type electrolysis jacking grooving method, adopt U type pipe electrode to replace traditional shaped electrode processing sipes, can realize the less bigger allowance of working (finishing) area removal, promptly reduce the magnitude of current that adds man-hour, improve working (machining) efficiency again.For example passage processing between the leaf of large-scale integral impeller, the passage broad, traditional Electrolyzed Processing is subjected to power limitations and can't processes, and adopts the tool for cutting machining waste big, and the cost height can only the moulding one by one of single passage when removing surplus, and efficient is low.If application curves electrode jacking electrolysis fluting, cutter is lossless, can save a large amount of energy and precious metal, and cost significantly reduces, and the while can realize that multi-electrode processes simultaneously, and efficient significantly improves;
Description of drawings
Fig. 1 is a single head feed liquor Electrolyzed Processing instrument schematic diagram.
Fig. 2 is a double end feed liquor Electrolyzed Processing instrument schematic diagram.
Fig. 3 is a single head feed liquor stick electrode Electrolyzed Processing schematic diagram.
Fig. 4 is a double end feed liquor curve electrolysis processing schematic diagram.
Fig. 5 is a double end feed liquor U type electrolysis processing schematic diagram.
Fig. 6 is seam shape and poroid liquid outlet flow field comparison diagram.
Fig. 7 is different structure tool-electrode processing comparison diagram.
Number in the figure title: 1, single head feed tube electrode, 2, single head feed tube electrode holder, 3, pipe electrode locking nut, 4, on the anchor clamps with feed liquor pipeline connecting portion, 5, double end feed tube electrode, 6, double end feed tube electrode holder, 7, the Electrolyzed Processing workpiece, 8, positive source, 9, power cathode, 10, the electrolyte liquid-supplying system, 11, curve double end feed tube electrode, 12, double end feed tube electrode holder, 13, U-shaped double end feed tube electrode, 14, seam shape liquid outlet electrode, 15, part blank, 16, sacrifice layer metal, 17, biserial group hole liquid outlet electrode.
Specific implementation method
Enforcement the present invention---" slotted electrolytic machining method and grooving tool " as shown in Figure 1, 2, it is included in towards finished surface has the arrange forming metal pipe electrode of aperture of rule: single head feed tube electrode 1 and double end feed tube electrode 5, pipe electrode electrolyte inlet and electrode stationary fixture: single head feed tube electrode holder 2 links to each other with double end feed tube electrode holder 6, by electrode locking nut 3 electrode and anchor clamps is fixed.Electrolyte directly pours moulding hollow metal pipe electrode from the feed liquor interface on the electrode stationary fixture, and tool-electrode connects power cathode, and part connects power anode, and this cover instrument is inserted Electrolyzed Processing numerical control feeding system, just can carry out the Electrolyzed Processing of part.
Figure 3 shows that single head feed liquor Electrolyzed Processing schematic diagram, it comprises that single head feed liquor electrode 1 links to each other with power cathode 9 with single head feed tube electrode holder 7, linked to each other with positive source 8 by Electrolyzed Processing workpiece 7, electrolyte liquid-supplying system 10 flows into the inlet of electrolyte from anchor clamps, spray the aperture from electrode, realize the fluting of part is processed by the numerical control feeding system.
Figure 4 shows that double end feed liquor curvilinear cut Electrolyzed Processing schematic diagram, it comprises that two inlet with double end feed tube electrode 5 links to each other with two single head feed liquor electrode holders 2 respectively, electrode links to each other with power cathode with anchor clamps, workpiece to be machined links to each other with the positive pole of power supply, the electrolyte liquid-supplying system flows into the inlet that electrolyte flows into two single head feed liquor electrode holders synchronously, realizes the processing of curve electrolysis by the numerical control feeding system.
Figure 5 shows that double end feed liquor jacking Electrolyzed Processing schematic diagram, it comprises U-shaped double end feed tube electrode 13 is linked to each other with double end feed tube electrode holder 12, electrode links to each other with power cathode with anchor clamps, workpiece to be machined links to each other with the positive pole of power supply, the electrolyte liquid-supplying system flows into two inlets of electrolyte from anchor clamps synchronously, realizes the processing of U type electrolysis jacking by the numerical control feeding system.
Claims (9)
1, a kind of slotted electrolytic machining method is characterized in that:
(1), adopt the moulding hollow metal pipe as tool-electrode, have the fluid group hole that rule is arranged on its tube wall;
(2), in when work, electrolyte flows into hollow metal pipe and also sprays in the aperture of tube wall, directly sprays to the part surface to be machined, forms square impact formula pipeline mode; By changing the distribution control flow field in hole;
(3), tool-electrode links to each other with power cathode, workpiece to be machined links to each other with the positive pole of power supply.
2, slotted electrolytic machining method according to claim 1 is characterized in that: adopt single head feed liquor mode, i.e. and hollow metal pipe electrode one end sealing, the other end is an inlet, electrolyte flows into from inlet, sprays to machined surface from aperture.
3, slotted electrolytic machining method according to claim 1 is characterized in that: when adopting double end feed liquor mode, promptly hollow metal pipe electrode two ends all are inlet, and electrolyte flows into simultaneously from the two ends inlet, sprays to machined surface from aperture.
4, a kind of fluting Electrolyzed Processing instrument is characterized in that: comprise the feed tube electrode, be used to connect the feed tube electrode holder of feed tube electrode and electrolyte feed liquid pipeline, have the fluid group hole that rule is arranged on the above-mentioned feed tube electrode tube wall.
5, fluting Electrolyzed Processing instrument according to claim 4 is characterized in that: described feed tube electrode one end opening one end sealing, openend is installed on the feed tube electrode holder.
6, fluting Electrolyzed Processing instrument according to claim 4 is characterized in that: the equal opening in described feed tube electrode two ends, two openends link to each other with a feed tube electrode holder respectively.
7, fluting Electrolyzed Processing instrument according to claim 4, it is characterized in that: described feed tube electrode is the craspedodrome type.
8, fluting Electrolyzed Processing instrument according to claim 4, it is characterized in that: described feed tube electrode is a shaped form.
9, fluting Electrolyzed Processing instrument according to claim 4 is characterized in that: described feed tube electrode is the equal opening of U type and two ends, and two openends link to each other with a feed tube electrode holder respectively.
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| CN200910025803A CN101524778A (en) | 2009-03-10 | 2009-03-10 | Slotted electrolytic machining method and slotted tool |
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| CN200910025803A CN101524778A (en) | 2009-03-10 | 2009-03-10 | Slotted electrolytic machining method and slotted tool |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198549A (en) * | 2011-05-20 | 2011-09-28 | 南京航空航天大学 | Electrochemical machining method and device for pulsating flow field tube electrode |
| CN102873416A (en) * | 2012-09-28 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode and machining method for electrolytic grooving of blisks |
| CN103817388A (en) * | 2014-03-04 | 2014-05-28 | 山东理工大学 | Device for preparing spiral cemented carbide micro milling cutter |
| CN104028862A (en) * | 2014-05-06 | 2014-09-10 | 张家港华宝机械制造有限公司 | Electrochemical machining method and machining equipment for titanium alloy slender shaft |
| CN104400163A (en) * | 2014-09-29 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Blisk electrolysis slotting machining annular electrode and technology method |
| CN105312691A (en) * | 2015-11-06 | 2016-02-10 | 山东理工大学 | Method for eliminating flow field vortexes in tubular electrode electrolytic machining interval |
| CN106944685A (en) * | 2017-05-08 | 2017-07-14 | 广东工业大学 | A kind of ball nut raceway exports electrochemical machining method |
| CN107824918A (en) * | 2017-10-26 | 2018-03-23 | 南京航空航天大学 | Aid in fliud flushing electrolysis milling processing blisk system and method |
| CN107962262A (en) * | 2017-12-01 | 2018-04-27 | 中国航发沈阳黎明航空发动机有限责任公司 | The electrode and processing unit (plant) and method of turbine disc mortise electrolysis cutting rapid shaping |
| CN108672863A (en) * | 2018-07-31 | 2018-10-19 | 中北大学 | The electrode tube of galvanic corrosion product is excluded using aperture reflux |
| CN109048368A (en) * | 2018-09-05 | 2018-12-21 | 中国航发动力股份有限公司 | A kind of semienclosed slot processing method of abnormally-structured part |
| CN109249102A (en) * | 2018-11-14 | 2019-01-22 | 中国航发动力股份有限公司 | Improve the tooling and method of electrical discharge machining process hole exits quality |
| CN110756923A (en) * | 2019-09-27 | 2020-02-07 | 中国航发南方工业有限公司 | Method for improving kidney-shaped groove processing efficiency and application thereof |
| CN111299730A (en) * | 2020-04-01 | 2020-06-19 | 江西理工大学 | U-shaped wire electrode electrolytic milling machining method |
| CN111408804A (en) * | 2020-04-28 | 2020-07-14 | 常州工学院 | Gap-adjusting type bent hole electrolytic machining device and method |
| CN111570943A (en) * | 2020-05-20 | 2020-08-25 | 南京农业大学 | Electrolytic machining method and process device for groove structure of wall surface of revolving body part |
| CN114769764A (en) * | 2022-04-12 | 2022-07-22 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining method for surface of titanium alloy plate |
-
2009
- 2009-03-10 CN CN200910025803A patent/CN101524778A/en active Pending
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102198549B (en) * | 2011-05-20 | 2012-11-07 | 南京航空航天大学 | Electrochemical machining method and device for pulsating flow field tube electrode |
| CN102198549A (en) * | 2011-05-20 | 2011-09-28 | 南京航空航天大学 | Electrochemical machining method and device for pulsating flow field tube electrode |
| CN102873416A (en) * | 2012-09-28 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode and machining method for electrolytic grooving of blisks |
| CN102873416B (en) * | 2012-09-28 | 2015-06-17 | 沈阳黎明航空发动机(集团)有限责任公司 | Electrode and machining method for electrolytic grooving of blisks |
| CN103817388A (en) * | 2014-03-04 | 2014-05-28 | 山东理工大学 | Device for preparing spiral cemented carbide micro milling cutter |
| CN104028862A (en) * | 2014-05-06 | 2014-09-10 | 张家港华宝机械制造有限公司 | Electrochemical machining method and machining equipment for titanium alloy slender shaft |
| CN104028862B (en) * | 2014-05-06 | 2017-02-22 | 张家港华宝机械制造有限公司 | Electrochemical machining method and machining equipment for titanium alloy slender shaft |
| CN104400163A (en) * | 2014-09-29 | 2015-03-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Blisk electrolysis slotting machining annular electrode and technology method |
| CN104400163B (en) * | 2014-09-29 | 2017-12-29 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of blisk electrolysis fluting processing annular electrode and process |
| CN105312691B (en) * | 2015-11-06 | 2018-07-24 | 山东理工大学 | A method of eliminating pipe electrode interelectrode gap flow field vortex |
| CN105312691A (en) * | 2015-11-06 | 2016-02-10 | 山东理工大学 | Method for eliminating flow field vortexes in tubular electrode electrolytic machining interval |
| CN106944685A (en) * | 2017-05-08 | 2017-07-14 | 广东工业大学 | A kind of ball nut raceway exports electrochemical machining method |
| CN107824918B (en) * | 2017-10-26 | 2019-11-12 | 南京航空航天大学 | Fliud flushing electrolysis milling is assisted to process integral blade disk system and method |
| CN107824918A (en) * | 2017-10-26 | 2018-03-23 | 南京航空航天大学 | Aid in fliud flushing electrolysis milling processing blisk system and method |
| CN107962262A (en) * | 2017-12-01 | 2018-04-27 | 中国航发沈阳黎明航空发动机有限责任公司 | The electrode and processing unit (plant) and method of turbine disc mortise electrolysis cutting rapid shaping |
| CN107962262B (en) * | 2017-12-01 | 2019-02-01 | 中国航发沈阳黎明航空发动机有限责任公司 | The electrode and processing unit (plant) and method of turbine disc mortise electrolysis cutting rapid shaping |
| CN108672863A (en) * | 2018-07-31 | 2018-10-19 | 中北大学 | The electrode tube of galvanic corrosion product is excluded using aperture reflux |
| CN109048368A (en) * | 2018-09-05 | 2018-12-21 | 中国航发动力股份有限公司 | A kind of semienclosed slot processing method of abnormally-structured part |
| CN109249102A (en) * | 2018-11-14 | 2019-01-22 | 中国航发动力股份有限公司 | Improve the tooling and method of electrical discharge machining process hole exits quality |
| CN110756923A (en) * | 2019-09-27 | 2020-02-07 | 中国航发南方工业有限公司 | Method for improving kidney-shaped groove processing efficiency and application thereof |
| CN111299730A (en) * | 2020-04-01 | 2020-06-19 | 江西理工大学 | U-shaped wire electrode electrolytic milling machining method |
| CN111408804A (en) * | 2020-04-28 | 2020-07-14 | 常州工学院 | Gap-adjusting type bent hole electrolytic machining device and method |
| CN111408804B (en) * | 2020-04-28 | 2020-12-18 | 常州工学院 | Gap-adjusting type bent hole electrolytic machining device and method |
| CN111570943A (en) * | 2020-05-20 | 2020-08-25 | 南京农业大学 | Electrolytic machining method and process device for groove structure of wall surface of revolving body part |
| CN111570943B (en) * | 2020-05-20 | 2021-08-27 | 南京农业大学 | Electrolytic machining method and process device for groove structure of wall surface of revolving body part |
| CN114769764A (en) * | 2022-04-12 | 2022-07-22 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining method for surface of titanium alloy plate |
| CN114769764B (en) * | 2022-04-12 | 2023-12-29 | 江苏江航智飞机发动机部件研究院有限公司 | Precise electrolytic machining method for surface of titanium alloy plate |
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