CN108127200A - Porous metal material module tubes electrolysis sprays Milling Process tool and method - Google Patents
Porous metal material module tubes electrolysis sprays Milling Process tool and method Download PDFInfo
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- CN108127200A CN108127200A CN201711137932.0A CN201711137932A CN108127200A CN 108127200 A CN108127200 A CN 108127200A CN 201711137932 A CN201711137932 A CN 201711137932A CN 108127200 A CN108127200 A CN 108127200A
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- metal material
- pipe electrode
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- 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
-
- 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
- B23H3/04—Electrodes specially adapted therefor or their manufacture
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention relates to a kind of porous metal material module tubes electrolysis injection Milling Process tool and methods, belong to Electrolyzed Processing field.It is characterized in that：By installing porous metals module at large diameter pipe electrode mouth spray, electrolyte is promoted uniformly to be sprayed at large diameter pipe electrode jet port, ensures that Electrolyzed Processing is stablized and carries out；Porous metals module is divided into slabbing module, side milling module, big depth-to-width ratio cutting module, and it is convenient to be replaced between each module；The porous metal material module tubes electrode structure is simple, and combining with digital control processing technology can realize the processing in complex geometry type face.The processing unit (plant) is included with lower component：Pipe electrode, porous metal material module, industrial personal computer, electrolytic machine tool, high-power DC power supply, electrolyte circulation system.The present invention is to promoting the uniform hydrojet of large diameter pipe electrode and machining area electrolyte steady flow, the stability for improving electrochemical machining process to be of great significance.
Description
Technical field
A kind of porous metal material module tubes electrolysis injection Milling Process tool and method of the present invention, belongs to electrolysis
Manufacture field.
Background technology
At present, the hard-cutting materials such as titanium alloy have been widely used for the fields such as aerospace, these hard-cutting materials tool
There is high temperature resistant, the excellent mechanical and physical performance such as corrosion-resistant, intensity is high.Titanium is processed when using tradition cutting or grinding technique
During alloy material, since tool wear is serious in process, needs frequently to replace cutter, not only increase processing cost,
Expend a large amount of process time.Leaf dish, blade especially in processing aero-engine etc. have complex-curved part, not only need
Expend a large amount of high quality cutter, it is also necessary to long-term to occupy the accurate high-end lathe of multiaxis.In addition to this, for some thin-walleds
Part, wall thickness thinnest part only have hundreds of microns, and tradition cutting and cutting force during grinding or grinding force will cause workpiece to deform.
In addition, traditional machining would generally generate residual stress on the surface of workpiece, work hardening layer is formed.
Widely used Laser Processing and electrical discharge machining would generally generate re cast layer in workpiece surface in the special process,
Re cast layer is the quenching cast sturcture that melted material is rapidly cooled to form in piece surface, and micro-crack is often contained in inside.Work as part
Under severe conditions during long-term work, micro-crack can expand, and eventually lead to the fracture of entire part.
Porous metals are by microspheres（It is commonly called as powder）It is formed through high temperature sintering, metal inside all directions are all dispersed with
Microscopic pinholes.General aperture 1um-15um stainless steel 304 material porous metals porosity between 28.7%-30.1%.
Porous metals have the characteristics that good energy absorption, large specific surface area, proportion are small, are usually used in biomedical drug delivery and energy passes
In terms of broadcasting medium, the application in pipe electrode Electrolyzed Processing is also seldom at present.
Pipe electrode jet electrolytic Milling Process technology, using hollow edged electrode as machining tool, tool construction is fairly simple,
Complicated cathode tool design in being processed to avoid conventional electrolysis shortens time and the cost of cathode tool design and manufacture；
Under the control of digital control system, cutter can process complicated curved surface track.In addition, as shown in Figure 1, when pipe electrode bore
When smaller, the flowing of pipe electrolyte inside is uniform, and machining area flow field is stablized, and Electrolyzed Processing can stablize progress；But in engineering reality
In trampling, in order to improve processing efficiency, it is sometimes desirable to which using the pipe electrode that bore is larger, and electrolyte is in the larger pipe of bore
A plurality of turbulent flow is easily formed in electrode, each item turbulent flow gap location is easily serious short due to lacking liquid during injection processing is electrolysed
Road so that processing is interrupted.Therefore, how to realize large diameter pipe electrode electrolyte inside Uniform Flow is to realize efficient electrolysis injection milling
Cutting processing needs the major issue solved.
Invention content
The present invention is directed to improve the stability of large diameter pipe electrode electrolyte inside flowing, improve electrolysis injection Milling Process area
Domain flow field proposes a kind of porous metal material module tubes electrolysis injection Milling Process tool and method.
A kind of porous metal material module pipe electrode, it is characterised in that：Liquid block group is gone out by pipe electrode and porous metal material
Into；Wherein porous metal material goes out liquid block and is installed on pipe electrode end.
Utilize the electrochemical machining method of the porous metal material module pipe electrode, it is characterised in that：During Electrolyzed Processing,
Pipe electrode and porous metal material go out liquid block high speed rotation in process, under the action of high speed rotation centrifugal force, electrolysis
Liquid goes out liquid block from porous metal material and uniformly sprays, and electrolyte is uniform in machining area flowing.
The invention has the advantages that：
1st, pipe electrode bottom porous metal module can make uniform, the Jin Erbao that electrolyte flow field disorderly in large diameter pipe electrode becomes
It demonstrate,proves electrochemical machining process and stablizes progress, finally obtain preferable processing quality.
2nd, the porous metals module of pipe electrode bottom installation, can be according to the difference of processing content（It is electrolysed milling surface, electrolysis
Milling side, electrolysis cutting narrow slit, as shown in Figure 3 and Figure 4）It is convenient to be replaced using disparate modules, between each module;
3rd, side milling Special multi-hole metal material module is for the big surplus removal electrolysis Milling Process of side surface of workpiece, and shape is in circle
Mesa-shaped, small end are installed on pipe electrode inner end portion, and big end is located at outside pipe electrode end；And big end outer diameter and pipe electrode outer diameter one
It causes, module big end side surface alignment pieces side wall during processing moves in the horizontal direction（Cutter is deep into inside workpiece in processing）, class
It is similar to the big surplus removal material of mode of traditional Milling Process.
4th, surface milling Special multi-hole metal material module is in for the micro removal electrolysis Milling Process of workpiece surface, shape
It is cylindric, it is mounted as a whole on pipe electrode inner end portion；Module bottom surface alignment pieces surface during processing, and with workpiece surface keep compared with
Small spacing（Cutter is not deep into inside workpiece in processing）, only it is electrolysed the metal that workpiece surface is removed in milling.
5th, narrow slit cutting Special multi-hole metal material module is electrolysed cutting processing for workpiece, and shape is cylindrical, whole
It is installed on outside pipe electrode end；Module side faces quasi- workpiece side wall during processing, moves in the horizontal direction, similar to wire cutting plus
The mode of work is electrolysed cutting workpiece.
Description of the drawings
Fig. 1 is different pipe electrode electrolyte inside jet flow schematic diagrames；
Fig. 2 is three kinds of pipe electrodes and porous metals module detailed construction schematic diagram；
Fig. 3 is porous metal material pipe electrode numerical control electrolysis Milling Process schematic diagram；
Fig. 4 is porous metal material pipe electrode numerical control electrolysis cutting processing schematic diagram；
Fig. 5 is porous metal material pipe electrode numerical control electrolysis Milling Process system and device schematic diagram；
Wherein label title：1. tubule electrode jet electrolytic liquid schematic diagram, 2. extra heavy pipe electrode jet electrolytic liquid schematic diagrames, more than 3.
Mesoporous metal material extra heavy pipe electrode jet electrolytic liquid schematic diagram, 4. side milling Special multi-hole metal material modules, 5. surface millings
Special multi-hole metal material module, 6. narrow slits cutting Special multi-hole metal material module, 7. pipe electrodes,
8. workpiece, 9. electrolytic machine tools, 10. industrial personal computers, 11. computers, 12. high-power DC power supplies, 13. head flowmeters,
14. check valve, 15. constant pressures pump, 16. filters, 17. electrolytic baths.
Specific embodiment
Fig. 3 and porous metal material module tubes electrode numerical control shown in Fig. 4 electrolysis Milling Process schematic diagram and porous metals
In material module pipe electrode numerical control electrolysis cutting processing schematic diagram, 7 surface of pipe electrode or side wall porous metals module are adjusted first
With the spacing between workpiece 8；Then, constant pressure pump 15 is opened, adjusts liquid supply pressure parameter；Finally, it sets in the controls
Processing technology curve and machined parameters open power supply and start to process.
In porous metal material pipe electrode numerical control electrolysis Milling Process system and device schematic diagram shown in fig. 5, industrial personal computer 10
The basic control system of Milling Process is electrolysed for the numerical control of porous metal material pipe electrode with computer 11；It is head flowmeter 13, unidirectional
Valve 14, constant pressure pump 15, filter 16, electrolytic bath 17 circulate system for electrolyte；Electrolytic machine tool main body 9 and big
Power DC power supply 12 is the main hardware system of electrolysis injection cutting processing.
Illustrate the implementation process of the present invention with reference to Fig. 3, Fig. 4, Fig. 5：
1st, with reference to figure 3, Fig. 4, Fig. 5, pipe electrode is mounted on the main shaft of lathe, clamping workpiece 8, and pipe electrode is moved to work
Part side, 8 top surface of adjustment pipe electrode porous metals module alignment workpiece or side, two indicator of ammeter connect pipe electrode and work respectively
Part 8, industrial personal computer 10 controls the feeding of pipe electrode low speed until pipe electrode just touches workpiece 8, and ammeter beeps, at this time instead
It is fed to low speed, until buzzer disappears, then setting processing primary clearance, distance to a declared goal is moved to by pipe electrode.Start electricity
When solution injection milling or cutting processing, start constant pressure pump 15, electrolyte is ejected into 8 surface of workpiece by conveyance conduit；In work
The other parameters such as processing technology curve and feed speed of setting electrolysis injection milling or cutting on control machine 10, set high-power straight
12 machining voltage of galvanic electricity source, starts to process.
With reference to figure 3, Fig. 4, Fig. 5, the processing electric current in electrolysis injection milling or cutting process is monitored by computer 12, treats electric current
After stabilization, 7 feed speed of pipe electrode that is continuously improved in industrial personal computer 10 until when current fluctuation is larger, then stops improving pipe
Electrode feed speed carries out electrolysis injection milling or cutting processing according to the maximum speed for being slightly less than the feed speed.
Claims (5)
1. a kind of porous metal material module pipe electrode, it is characterised in that：
By pipe electrode（7）Go out liquid block composition with porous metal material；Wherein porous metal material goes out liquid block and is installed on pipe electrode（7）
End.
2. porous metal material module pipe electrode according to claim 1, for the big surplus removal electrolysis milling of side surface of workpiece
Cut processing, it is characterised in that：The porous metal material goes out liquid block（4）In round table-like, small end is installed on pipe electrode inner end portion,
Big end is located at outside pipe electrode end；And big end outer diameter is consistent with pipe electrode outer diameter.
3. porous metal material module pipe electrode according to claim 1, for the micro removal electrolysis milling of workpiece surface
Processing, it is characterised in that：The porous metal material goes out liquid block（5）It is cylindrical, it is mounted as a whole on pipe electrode（7）In end
Portion.
4. porous metal material module pipe electrode according to claim 1 is electrolysed cutting processing for workpiece, feature exists
In：The porous metal material goes out liquid block（6）It is cylindrical, it is mounted as a whole on pipe electrode（7）Outside end.
5. utilize the electrochemical machining method of porous metal material module pipe electrode described in claim 1, it is characterised in that：
During Electrolyzed Processing, pipe electrode（7）And porous metal material goes out liquid block high speed rotation in process, high speed rotation from
Under the action of mental and physical efforts, electrolyte goes out liquid block from porous metal material and uniformly sprays, and electrolyte is uniform in machining area flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711137932.0A CN108127200A (en) | 2017-11-16 | 2017-11-16 | Porous metal material module tubes electrolysis sprays Milling Process tool and method |
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| CN201711137932.0A CN108127200A (en) | 2017-11-16 | 2017-11-16 | Porous metal material module tubes electrolysis sprays Milling Process tool and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508884A (en) * | 2019-09-09 | 2019-11-29 | 合肥工业大学 | Big depth-to-width ratio narrow slot structure rifling jet stream electrochemical machine tool and its processing method |
| CN111347112A (en) * | 2020-03-25 | 2020-06-30 | 西安工业大学 | Drilling device and method for conductor material |
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| JPS61241022A (en) * | 1985-04-18 | 1986-10-27 | Inoue Japax Res Inc | Electric discharge machining method |
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| US20090260994A1 (en) * | 2008-04-16 | 2009-10-22 | Frederick Joslin | Electro chemical grinding (ecg) quill and method to manufacture a rotor blade retention slot |
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2017
- 2017-11-16 CN CN201711137932.0A patent/CN108127200A/en active Pending
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| JPS61241022A (en) * | 1985-04-18 | 1986-10-27 | Inoue Japax Res Inc | Electric discharge machining method |
| CN1597216A (en) * | 2004-08-06 | 2005-03-23 | 苏州中特机电科技有限公司 | Method of high efficiency cooling and removing etched matter of efficient discharge milling processing |
| US20090260994A1 (en) * | 2008-04-16 | 2009-10-22 | Frederick Joslin | Electro chemical grinding (ecg) quill and method to manufacture a rotor blade retention slot |
| CN103878453A (en) * | 2014-01-07 | 2014-06-25 | 江南大学 | Internal-liquid-flushable electric spark processing porous forming electrode |
| CN103934529A (en) * | 2014-05-20 | 2014-07-23 | 江南大学 | Liquid flushing enhanced porous electrode clamping device for electric spark machining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110508884A (en) * | 2019-09-09 | 2019-11-29 | 合肥工业大学 | Big depth-to-width ratio narrow slot structure rifling jet stream electrochemical machine tool and its processing method |
| CN111347112A (en) * | 2020-03-25 | 2020-06-30 | 西安工业大学 | Drilling device and method for conductor material |
| CN111347112B (en) * | 2020-03-25 | 2022-04-08 | 西安工业大学 | Drilling device and method for conductor material |
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Application publication date: 20180608 |