CN106238838A - A kind of method in electro-chemical machining elliposoidal ring hole - Google Patents
A kind of method in electro-chemical machining elliposoidal ring hole Download PDFInfo
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- CN106238838A CN106238838A CN201610616100.6A CN201610616100A CN106238838A CN 106238838 A CN106238838 A CN 106238838A CN 201610616100 A CN201610616100 A CN 201610616100A CN 106238838 A CN106238838 A CN 106238838A
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- 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
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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
- B23H3/04—Electrodes specially adapted therefor or their manufacture
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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
- B23H3/08—Working media
Abstract
A kind of method in electro-chemical machining elliposoidal ring hole, comprises the following steps: 1) preparation of tool-electrode A；2) preparation of tool-electrode B；3) processing in circular ring hole；First tool-electrode A is fed in unthreaded hole pre-processed on workpiece to be processed, then electrolyte is flowed from bottom to top along the gap between the unthreaded hole inwall on tool-electrode A and workpiece to be processed, workpiece to be processed surface is removed under electric field action, forms circular ring hole；4) processing in elliposoidal ring hole: by step 3) in tool-electrode A take out, it is inserted into tool-electrode B in circular ring hole, tool-electrode B is driven to press set angle circumferentially reciprocally swinging by machine tool chief axis, the internal face that circular ring hole is in Electrolyzed Processing district obtains re-electrolysis processing, and circular ring hole gradually forms elliposoidal ring hole.The present invention can process aperture size little, processing surface of the work performance will not be affected by cutting force.
Description
Technical field
The present invention relates to electro-chemical machining field, a kind of method in electro-chemical machining elliposoidal ring hole.
Background technology
Along with progress and the scientific and technological development of society, in the manufacturings such as modern aerospace, automobile, lathe, for
During use, stress is heated the more serious part of ratio, in order to alleviate the part deformation the most thoroughly brought due to cooling, extends it
In service life, increasing employing not rounded odd-shaped cross section, i.e. cross section are not circular, but ellipse, variation ellipse, cycloid etc. are non-
Toroidal.Such as noncircular pin hole design commonly used in modern piston manufacturing industry, can avoid producing under the highest combustion pressure
Raw elastic deformation, alleviates the problem that lateral stress in pin-and-hole is concentrated so that piston obtains better performance.Additionally, send out in aviation
Motivation roller bearing uses noncircular raceway, can effectively solve the skidding of roller during high speed light loading, it is to avoid to electromotor
The impact of damaging property.And these not rounded special-shaped sections are because the shape of its complexity, machining accuracy, to manufacturing processing skill
Art proposes the highest requirement.
At present, the processing method of not rounded special-shaped section is the footpath by the gyration of main shaft Yu cutting tool mostly
Realize to the synthesis of stretching motion.But in terms of actual processing, then there is variety of problems, be primarily due at revolution boring bar
It is little that upper installation high frequency sound microfeed structure and control driving means also exist installing space, implements to control and measure difficulty
Problem.
Summary of the invention
For the deficiency overcoming prior art to exist, the invention provides the side in a kind of electro-chemical machining elliposoidal ring hole
Method, it is to use the power on the principle of metal material generation electrochemical dissolution under state to carry out, and utilizes custom-designed tool-electrode,
Control process time, machining voltage, the swing of tool-electrode realize the processing of surface, small-bore elliposoidal micro structure.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of method in electro-chemical machining elliposoidal ring hole, said method comprising the steps of:
1) preparation of tool-electrode A:
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by making annular groove at equal intervals, then
In annular groove, coat insulant and solidify, forming the laemodipodiform instrument that metallic conduction portion is spaced with insulation division
Electrode A；
2) preparation of tool-electrode B:
By the surface of a smooth cylinder tinsel or metal tube vertically before and after both sides make the plane being parallel to each other,
Axially the left and right sides is respectively by making arc groove at equal intervals, is then coated with on arc groove and plane that front and back both sides are parallel
Cover insulant and solidify, before and after formation both sides insulation, the left and right sides metallic conduction portion spaced with insulation division
Tool-electrode B；Wherein, adjacent with on tool-electrode A two of interval between adjacent two arc grooves on tool-electrode B
Spacing between annular groove is identical, the width up and down of the annular groove on tool-electrode A and the arc groove on tool-electrode B
Width up and down identical, the horizontal stroke in the radius of the cross section in the metallic conduction portion of tool-electrode B and the metallic conduction portion of tool-electrode A
The radius in cross section is identical；
3) processing in circular ring hole:
First tool-electrode A is fed in unthreaded hole pre-processed on workpiece to be processed, then by electrolyte along work
Flowing from bottom to top in the gap between unthreaded hole inwall in tool electrode A and workpiece to be processed, then workpiece to be processed is connect power supply
Positive pole, tool-electrode A connects power cathode, be in workpiece to be processed and tool-electrode A that electrolyte surrounds metallic conduction portion it
Between form Electrolyzed Processing district, workpiece to be processed surface is removed under electric field action, forms circular ring hole；
4) processing in elliposoidal ring hole:
By step 3) in tool-electrode A take out, be inserted into tool-electrode B, and the gold of tool-electrode B in circular ring hole
Belong to conductive part, insulation division and the metallic conduction portion of tool-electrode A, insulation division corresponding at axial direction, meanwhile, tool-electrode B
Before and after both sides insulating barrier before and after arrange；Set machining voltage and the conduction time of electrolyte, started building by machine tool chief axis band
Tool electrode B presses set angle circumferentially reciprocally swinging, and the internal face that circular ring hole is in Electrolyzed Processing district obtains two
Secondary Electrolyzed Processing, circular ring hole gradually forms elliposoidal ring hole, and after reaching the conduction time set, circular ring hole is complete
Holotype becomes elliposoidal ring hole；
Wherein, before and after tool-electrode B, the set angle of reciprocally swinging is 30 °～60 °.
Further, described step 1) tool-electrode A preparation in；
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by one layer of insulating cement of coating at equal intervals, and
Solidifying under ultraviolet light irradiates, being then immersed in mass concentration is 10%NaNO3Electrolyte in carry out electrolytic etching,
By cylindrical metal silk or the metal pipe joint positive source of coating insulating cement, mass concentration is 10%NaNO3Ferrum in electrolyte
Sheet connects power cathode, after electrolytic etching reaches the setting time, takes out cylindrical metal silk or metal tube, so that cylindrical gold
Belong to the metal material of silk or metal tube surface exposed part and obtain corroding groove-like ringwise, then by coat before one layer absolutely
The metallic conduction portion forming tool-electrode A removed by edge glue, and finally in the annular groove being corroded, uniformly coating contains 15%SiC's
Photosensitive resin also solidifies under ultraviolet light irradiates, and the photosensitive resin layer in annular groove forms the insulation division of tool-electrode A,
Thus prepare tool-electrode A.
Further, described step 2) tool-electrode B preparation in；
By one layer of insulating cement of the exceptionally straight coating in the left and right sides vertically, surface of a smooth cylinder tinsel or metal tube also
Solidifying under ultraviolet light irradiates, then being invaded the mass concentration prepared is 10%NaNO3Electrolyte in, will be coated with
Covering cylindrical metal silk or the metal pipe joint positive source of insulating cement, mass concentration is 10%NaNO3Iron plate in electrolyte connects
Power cathode, after electrolytic etching to setting time, takes out cylindrical metal silk or metal tube so that cylindrical metal silk or
The metal material of metal tube surface exposed part is corroded, and it forms the plane being parallel to each other in both sides axially back and forth, and flat
Coat the photosensitive resin of 15%SiC on face, and solidify under ultraviolet light irradiates, obtain the metal of both sides insulation axially back and forth
Silk or metal tube；
Then, coating one layer at equal intervals is pressed respectively at the tinsel of front and back's both sides insulation or the axial left and right sides of metal tube
Insulating cement, and solidify under ultraviolet light irradiates, being dipped in mass concentration after solidification is 10%NaNO3Electrolyte enters
Row electrolytic etching, by cylindrical metal silk or the metal pipe joint positive source of front and back's both sides insulation, mass concentration is 10%NaNO3
Iron plate in electrolyte connects power cathode, after electrolytic etching reaches the setting time, takes out tinsel or metal tube, so that golden
Belong to the metal material of silk or metal tube surface exposed part and obtain corroding curved groove-like, then by coat before one layer absolutely
The metallic conduction portion forming tool-electrode B removed by edge glue, and finally in the arc groove being corroded, uniformly coating contains 15%SiC's
Photosensitive resin also solidifies under ultraviolet light irradiates, and the photosensitive resin layer in arc groove forms the insulation division of tool-electrode B,
Thus prepare tool-electrode B.
The present invention mainly has the beneficial effects that: can realize the processing of circumferencial direction on-circular cross-section Cooling Holes；Processing technique is grasped
Make simple；In the case of array electrode, can disposably carry out porous processing, efficiency is high；Machining accuracy is higher, can process aperture chi
Very little little, processing surface of the work performance will not be affected by cutting force.
Accompanying drawing explanation
Fig. 1 a is the structural representation wiry of surface groove-like ringwise.
Fig. 2 a is the structural representation that Fig. 1 a makes tool-electrode A.
Fig. 1 b is the structural representation of the metal tube of surface groove-like ringwise.
Fig. 2 b is the structural representation that Fig. 1 b makes tool-electrode A2.
Fig. 3 be axially back and forth both sides be corroded for plane, the axial left and right sides be corroded as arc groove wiry
Structural representation.
Fig. 4 is the structural representation of the tool-electrode B that Fig. 3 makes.
Fig. 5 is the Electrolyzed Processing schematic diagram in elliposoidal ring hole.
Fig. 6 is the sectional side elevation in the circular ring hole after being processed by tool-electrode A.
Fig. 7 is the front view of Fig. 6.
Fig. 8 is the tool-electrode B schematic diagram at circular ring hole periodically circuit oscillation vertically.
Fig. 9 is the sectional side elevation in elliposoidal ring hole.
Figure 10 is the front view of Fig. 9.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1～Figure 10, a kind of method in electro-chemical machining elliposoidal ring hole, said method comprising the steps of:
2) preparation of tool-electrode A:
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by making annular groove at equal intervals, then
In annular groove, coat insulant and solidify, forming the laemodipodiform instrument that metallic conduction portion is spaced with insulation division
Electrode A；
3) preparation of tool-electrode B:
By the surface of a smooth cylinder tinsel or metal tube vertically before and after both sides make the plane being parallel to each other,
Axially the left and right sides is respectively by making arc groove at equal intervals, is then coated with on arc groove and plane that front and back both sides are parallel
Cover insulant and solidify, before and after formation both sides insulation, the left and right sides metallic conduction portion spaced with insulation division
Tool-electrode B；Wherein, adjacent with on tool-electrode A two of interval between adjacent two arc grooves on tool-electrode B
Spacing between annular groove is identical, the width up and down of the annular groove on tool-electrode A and the arc groove on tool-electrode B
Width up and down identical, the horizontal stroke in the radius of the cross section in the metallic conduction portion of tool-electrode B and the metallic conduction portion of tool-electrode A
The radius in cross section is identical；
3) processing in circular ring hole:
First tool-electrode A is fed in unthreaded hole pre-processed on workpiece to be processed 6, then by electrolyte along work
Flowing from bottom to top in the gap between unthreaded hole inwall in tool electrode A and workpiece to be processed 6, then workpiece to be processed is connect power supply
Positive pole, tool-electrode A connects power cathode, be in workpiece to be processed 6 that electrolyte surrounds and tool-electrode A metallic conduction portion it
Between form Electrolyzed Processing district, workpiece to be processed 6 surface is removed under electric field action, forms circular ring hole；
4) processing in elliposoidal ring hole:
By step 3) in tool-electrode A take out, be inserted into tool-electrode B, and the gold of tool-electrode B in circular ring hole
Belong to conductive part, insulation division and the metallic conduction portion of tool-electrode A, insulation division corresponding at axial direction, meanwhile, tool-electrode B
Before and after both sides insulating barrier before and after arrange；Set machining voltage and the conduction time of electrolyte, started building by machine tool chief axis band
Tool electrode B presses set angle circumferentially reciprocally swinging, and the internal face that circular ring hole is in Electrolyzed Processing district obtains two
Secondary Electrolyzed Processing, circular ring hole gradually forms elliposoidal ring hole, and after reaching the conduction time set, circular ring hole is complete
Holotype becomes elliposoidal ring hole；
Wherein, before and after tool-electrode B, the set angle of reciprocally swinging is 30 °～60 °.
Further, described step 1) tool-electrode A preparation in；
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by one layer of insulating cement of coating at equal intervals, and
Solidifying under ultraviolet light irradiates, being then immersed in mass concentration is 10%NaNO3Electrolyte in carry out electrolytic etching,
By cylindrical metal silk or the metal pipe joint positive source of coating insulating cement, mass concentration is 10%NaNO3Ferrum in electrolyte
Sheet connects power cathode, after electrolytic etching reaches the setting time, takes out cylindrical metal silk or metal tube, so that cylindrical gold
Belong to the metal material of silk or metal tube surface exposed part and obtain corroding groove-like ringwise, then by coat before one layer absolutely
The metallic conduction portion 1 forming tool-electrode A removed by edge glue, and finally in the annular groove 2 being corroded, uniformly coating contains 15%SiC
Photosensitive resin and ultraviolet light irradiate under solidify, the photosensitive resin layer 3 in annular groove 2 forms the exhausted of tool-electrode A
Edge, thus prepare tool-electrode A.
Further, described step 2) tool-electrode B preparation in；
By one layer of insulating cement of the exceptionally straight coating in the left and right sides vertically, surface of a smooth cylinder tinsel or metal tube also
Solidifying under ultraviolet light irradiates, then being invaded the mass concentration prepared is 10%NaNO3Electrolyte in, will be coated with
Covering cylindrical metal silk or the metal pipe joint positive source of insulating cement, mass concentration is 10%NaNO3Iron plate in electrolyte connects
Power cathode, after electrolytic etching to setting time, takes out cylindrical metal silk or metal tube so that cylindrical metal silk or
The metal material of metal tube surface exposed part is corroded, and it forms the plane 4 being parallel to each other in both sides axially back and forth, and flat
Coat the photosensitive resin of 15%SiC on face 4, and solidify under ultraviolet light irradiates, obtain the gold of both sides insulation axially back and forth
Belong to silk or metal tube；
Then, coating one layer at equal intervals is pressed respectively at the tinsel of front and back's both sides insulation or the axial left and right sides of metal tube
Insulating cement, and solidify under ultraviolet light irradiates, being dipped in mass concentration after solidification is 10%NaNO3Electrolyte enters
Row electrolytic etching, by cylindrical metal silk or the metal pipe joint positive source of front and back's both sides insulation, mass concentration is 10%NaNO3
Iron plate in electrolyte connects power cathode, after electrolytic etching reaches the setting time, takes out tinsel or metal tube, so that golden
Belong to the metal material of silk or metal tube surface exposed part and obtain corroding curved groove-like, then by coat before one layer absolutely
The metallic conduction portion forming tool-electrode B removed by edge glue, and finally in the arc groove 5 being corroded, uniformly coating contains 15%SiC
Photosensitive resin and ultraviolet light irradiate under solidify, the photosensitive resin layer 3 in arc groove 5 forms the exhausted of tool-electrode B
Edge, thus prepare tool-electrode B.
Certainly wherein the be corroded tinsel/metal tube of groove-like ringwise of surface can use other processing methods to obtain
, such as 3D printing, turnery processing, at annular groove, the most further coat the insulant such as photosensitive resin to obtain instrument
Electrode A；Axially back and forth both sides be corroded the tinsel/metal tube being corroded as arc groove 5 for plane, the axial left and right sides can
To use other processing methods to obtain, as 3D print, turnery processing, the most further at both sides axially back and forth, arc groove
The insulant such as place's coating photosensitive resin are to obtain tool-electrode B.
The Electrolyzed Processing principle of the present invention is:
Electrolyte flows from bottom to top along gap between tool-electrode A and workpiece to be processed 6 unthreaded hole sidewall, workpiece to be processed
6 connect positive source, and tool-electrode A connects negative pole, are in the metallic conduction of the workpiece to be processed 6 and tool-electrode A that electrolyte surrounds
Forming Electrolyzed Processing district between portion, surface of the work material is removed under electric field action, is distributed according to tool-electrode A surrounding electric field
Rule, just the metallic conduction portion electric field intensity to tool-electrode A present symmetrical arc, are thus in tool-electrode A negative electrode exposed
Surface of the work material corrosion speed near metal material presents the rule that centre is fast, both sides are slow, and final unthreaded hole is processed to circle
The shape ring hole i.e. cross section in ring hole is circular cross-section 8；Afterwards tool-electrode A is taken out, insert work in corresponding position
Tool electrode B 10, carries out re-electrolysis processing again, owing to tool-electrode B both sides axially back and forth are coated with insulant containing 15%
The photosensitive resin of SiC so that inside machined ring hole, circular section, only subregion obtains electrolytic etching again, at instrument electricity
During the B10 Electrolyzed Processing of pole, tool-electrode B10 is driven to carry out certain angle, such as set angle by controlling machine tool chief axis
It is 30 °～60 ° of reciprocally swingings, certain machining voltage and conduction time are set simultaneously, control this circle ring hole and be in electrolysis
The internal face of processing district is further corroded, and circular ring hole gradually forms elliposoidal ring hole, elliposoidal ring hole
Cross section is oval 9.
Example one:
1, the preparation of tool-electrode.
Tool-electrode 7 includes tool-electrode A and tool-electrode B；
Prepared by tool-electrode A: take an a diameter of 1.5mm, the cylindrical metal silk of long 60mm, by certain same distance i.e. etc.
Being spaced such as 5mm, the most uniformly coating insulating cement ultraviolet light solidify under irradiating, then are fixed on lathe,
Feeding is immersed in the NaNO that mass concentration is 10%3In electrolyte, by the cylindrical metal wire connection positive source of coating insulating cement,
Mass concentration is the NaNO of 10%3Iron plate in electrolyte connects power cathode, applies voltage 8V, metal after working time 5min
Silk takes out, and removes the insulating cement of wire surface, and the metallic conduction portion forming tool-electrode A i.e. obtains tool-electrode A matrix；So
After in the annular groove of the corrosion of tool-electrode A matrix coating containing the photosensitive resin of 15%SiC, put in ultraviolet
After solidifying 3min under photo solidification machine, form the insulation division of tool-electrode A, i.e. prepare tool-electrode A.
Prepared by tool-electrode B: take an a diameter of 1.5mm, and the cylindrical metal silk of long 60mm stretches tight along its axial left and right sides
Straight coating insulating cement also solidifies, then be fixed on lathe by tinsel, is fed into the 10%NaNO prepared3In electrolyte, will be coated with
Covering cylindrical metal silk or the metal pipe joint positive source of insulating cement, mass concentration is 10%NaNO3Iron plate in electrolyte connects
Power cathode, adds running voltage 8V, after 5 minutes working times, tinsel is taken out；Both sides before and after wire erosion is crossed
Topcoating covers the photosensitive resin containing 15%SiC, and solidifies 3min under uv cure machine, takes out by the most such as after it cools down
5mm the most uniformly coats insulating cement and solidifies, and it is 10%NaNO that second time is immersed in mass concentration3Electrolyte is carried out
Electrolytic etching, owing to both sides front and back wiry have the protection of insulating photosensitive resin, only corrodes wiry in electrolytic process
Metal exposed part gradually forms arc groove, applies voltage 8V, and after 5 minutes working times, taking-up tinsel is the most recessed at arc
In groove, uniformly coating contains the photosensitive resin of 15%SiC, and i.e. prepares instrument electricity under uv cure machine after solidification 3min
Pole B.
2, the processing in elliposoidal ring hole.
Processing aperture 2mm in advance on workpiece to be processed 6, the unthreaded hole of hole depth 60mm i.e. smooth bore, by work to be processed
Part 6 is fixed in Working table clamp, and mass concentration is 15%NaNO3Electrolyte flows into from bottom to top from smooth bore；First will
Tool-electrode A is fed in the smooth bore on workpiece to be processed 6, and tool-electrode A connects power cathode, and workpiece to be processed 6 connects electricity
Source positive pole, applying voltage is 10V, and process time is 10min, is taken out by tool-electrode A after process finishing；Next tool-electrode
B10 is again fed into same position and carries out re-electrolysis processing, and applying voltage is 10V, process time 10min, wherein instrument electricity
The insulating planar of both sides axially back and forth of pole B is front and back arranged, the conductive part of the tool-electrode B10 left and right sides axially
On.Before and after in the course of processing, tool-electrode B10 makees 60 ° of angles, circumference reciprocally swinging, i.e. obtains elliposoidal ring after process finishing
Hole.
Claims (3)
1. the method in an electro-chemical machining elliposoidal ring hole, it is characterised in that: said method comprising the steps of:
1) preparation of tool-electrode A:
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by making annular groove at equal intervals, then at ring
Coat insulant in connected in star and solidify, forming the laemodipodiform tool-electrode that metallic conduction portion is spaced with insulation division
A；
2) preparation of tool-electrode B:
By the surface of a smooth cylinder tinsel or metal tube vertically before and after both sides make the plane being parallel to each other, axially
The left and right sides is respectively by making arc groove at equal intervals, and then on arc groove and plane that front and back both sides are parallel, coating is absolutely
Edge material also solidifies, the metallic conduction portion instrument spaced with insulation division of both sides insulation, the left and right sides before and after formation
Electrode B；Wherein, interval two annulars adjacent with on tool-electrode A between adjacent two arc grooves on tool-electrode B
Spacing between groove is identical, and the width up and down of the annular groove on tool-electrode A is upper with the arc groove on tool-electrode B
Lower width is identical, the radius of the cross section in the metallic conduction portion of tool-electrode B and the cross section in the metallic conduction portion of tool-electrode A
Radius identical；
3) processing in circular ring hole:
First tool-electrode A is fed in unthreaded hole pre-processed on workpiece to be processed, then by electrolyte along instrument electricity
Flowing from bottom to top in the gap between unthreaded hole inwall on pole A and workpiece to be processed, then workpiece to be processed is connect positive source,
Tool-electrode A connects power cathode, is between workpiece to be processed and the metallic conduction portion of tool-electrode A that electrolyte surrounds and is formed
Electrolyzed Processing district, workpiece to be processed surface is removed under electric field action, forms circular ring hole；
4) processing in elliposoidal ring hole:
By step 3) in tool-electrode A take out, be inserted into tool-electrode B in circular ring hole, and the metal of tool-electrode B led
Electricity portion, insulation division and the metallic conduction portion of tool-electrode A, insulation division are corresponding at axial direction, meanwhile, before tool-electrode B
Arrange before and after the insulating barrier of rear both sides；Set machining voltage and the conduction time of electrolyte, by machine tool chief axis band power driven tools electricity
Pole B presses set angle circumferentially reciprocally swinging, and the internal face that circular ring hole is in Electrolyzed Processing district obtains secondary electricity
Solving processing, circular ring hole gradually forms elliposoidal ring hole, after reaching the conduction time set, and circular ring hole full form
Become elliposoidal ring hole；
Wherein, before and after tool-electrode B, the set angle of reciprocally swinging is 30 °～60 °.
The method in a kind of electro-chemical machining elliposoidal ring hole the most as claimed in claim 1, it is characterised in that: described step 1)
In the preparation of tool-electrode A；
By the surface of a smooth cylinder tinsel or metal tube along the circumferential direction by one layer of insulating cement of coating at equal intervals, and at purple
Outer light solidifies under irradiating, and being then immersed in mass concentration is 10%NaNO3Electrolyte in carry out electrolytic etching, will be coated with
Covering cylindrical metal silk or the metal pipe joint positive source of insulating cement, mass concentration is 10%NaNO3Iron plate in electrolyte connects
Power cathode, after electrolytic etching reaches the setting time, takes out cylindrical metal silk or metal tube, so that cylindrical metal silk
Or the metal material of metal tube surface exposed part obtains corroding groove-like ringwise, the one layer of insulating cement that then will coat before
Removing the metallic conduction portion forming tool-electrode A, finally in the annular groove being corroded, uniformly coating contains the photosensitive of 15%SiC
Resin also solidifies under ultraviolet light irradiates, and the photosensitive resin layer in annular groove forms the insulation division of tool-electrode A, thus
Prepare tool-electrode A.
The method in a kind of electro-chemical machining elliposoidal ring hole the most as claimed in claim 1, it is characterised in that: described step 2)
In the preparation of tool-electrode B；
By one layer of insulating cement of the exceptionally straight coating in the left and right sides vertically, surface of a smooth cylinder tinsel or metal tube and at purple
Outer light solidifies under irradiating, and then being invaded the mass concentration prepared is 10%NaNO3Electrolyte in, will coating absolutely
The cylindrical metal silk of edge glue or metal pipe joint positive source, mass concentration is 10%NaNO3Iron plate in electrolyte connects power supply
Negative pole, after electrolytic etching to setting time, takes out cylindrical metal silk or metal tube, so that cylindrical metal silk or metal
The metal material of tube-surface exposed part is corroded, its plane that both sides formation is parallel to each other axially back and forth, and in the plane
The photosensitive resin of coating 15%SiC, and solidifying under ultraviolet light irradiates, obtain the insulation of both sides axially back and forth tinsel or
Metal tube；
Then, one layer of insulation of coating at equal intervals is pressed respectively at the tinsel of front and back's both sides insulation or the axial left and right sides of metal tube
Glue, and solidify under ultraviolet light irradiates, being dipped in mass concentration after solidification is 10%NaNO3Electrolyte carries out electricity
Solving corrosion, by cylindrical metal silk or the metal pipe joint positive source of front and back's both sides insulation, mass concentration is 10%NaNO3Electrolysis
Iron plate in liquid connects power cathode, after electrolytic etching reaches the setting time, takes out tinsel or metal tube, so that tinsel
Or the metal material of metal tube surface exposed part obtains corroding curved groove-like, the one layer of insulating cement that then will coat before
Removing the metallic conduction portion forming tool-electrode B, finally in the arc groove being corroded, uniformly coating contains the photosensitive of 15%SiC
Resin also solidifies under ultraviolet light irradiates, and the photosensitive resin layer in arc groove forms the insulation division of tool-electrode B, thus
Prepare tool-electrode B.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080753A (en) * | 2018-01-30 | 2018-05-29 | 深圳大学 | The electric discharge device and its processing method of endoporus microflute |
| CN109807412A (en) * | 2019-04-01 | 2019-05-28 | 江西理工大学 | A kind of tool-electrode and electrolytic machining device |
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| CN108080753A (en) * | 2018-01-30 | 2018-05-29 | 深圳大学 | The electric discharge device and its processing method of endoporus microflute |
| CN109807412A (en) * | 2019-04-01 | 2019-05-28 | 江西理工大学 | A kind of tool-electrode and electrolytic machining device |
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| CN106238838B (en) | 2018-02-27 |
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