CN106513883A - Blade profile precision electrolytic molding electrode and processing method - Google Patents
Blade profile precision electrolytic molding electrode and processing method Download PDFInfo
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- CN106513883A CN106513883A CN201611068724.5A CN201611068724A CN106513883A CN 106513883 A CN106513883 A CN 106513883A CN 201611068724 A CN201611068724 A CN 201611068724A CN 106513883 A CN106513883 A CN 106513883A
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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
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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 invention relates to a blade profile precision electrolytic molding electrode and a processing method. The blade profile precision electrolytic molding electrode comprises a blade back molding electrode, a blade basin molding electrode and a positioning clamping device, wherein the positioning clamping device is arranged on a transfer disk of a longitudinal Z axis of a machine tool; a blade workpiece is assembled on the positioning clamping device; the blade back molding electrode and the blade basin molding electrode are separately connected with feed motion shafts of X1 axis and X2 axis of an electrolytic machine tool; the blade back molding electrode and the blade basin molding electrode are subjected to die assembly; the blade back molding electrode and the blade basin molding electrode form sealing chambers with the positioning clamping device; the blade workpiece is closed in the sealing chamber; and the sealing chamber communicates with an external electrolyte pipeline through an electrolyte inlet and an electrolyte outlet. According to the processing method disclosed by the invention, zero-allowance processing of a blade profile is guaranteed; compared with a numerical control milling method, the processing method disclosed by the invention has the advantages that the cost of electrolytic processing is only 10 percent that of numerical control milling, and the efficiency of the electrolytic processing is three times or above that of the numerical control milling; and meanwhile, the processing quality of blade parts is guaranteed; and the processing method is suitable for large-batch production and has huge potential benefits.
Description
Technical field
The present invention relates to a kind of aero-engine compressor blade profile process technology, specifically a kind of blade profile
Precision ECM shaped electrode and processing method.
Background technology
The principle of Electrolyzed Processing is that the principle of anodic solution can occur in the electrolytic solution using metal and material is removed, will
A kind of non-traditional cutting working method of work pieces process molding.During Electrolyzed Processing, instrument (cutter) is as negative electrode, workpiece as sun
Pole is connected to DC source.In the electrolytic solution, tool cathode shifts to workpiece anode with certain speed, sends out between instrument and workpiece
Raw charge-exchange, anode workpiece material is dissolved, and is taken away by swiftly flowing electrolyte, so as to reach point-device processing
Require.
Engine compressor blade processing is carried out using electrolytic method, extensively should on advanced aero engine abroad
With such as MTU companies of Germany compressor blade nowadays more than 90% is processed using this technique.(in " typhoon " engine RB199
Pressure and high-pressure compressor, the high-pressure compressor of EJ200 electromotors).
At present, for the existing leading technology of such compressor blade adopt cold-reduced sheet blank, blade type face using rolling with
Hand-polished processing method.Due to blade profile change curvature greatly, hold curved, sweepback, the processing of current leading technology rolling to reach not
To without surplus, processing rear blade deformation, making, forming surface is overproof, and manufacture accordance is poor.Intake and exhaust side cannot be realized in roll milling technology
In the case of edge Precision Machining, using the method processing blade type face of numerical control mill, it is possible to achieve the precision machined mesh in blade type face
Mark, but cost and efficiency can not meet batch product requirement.
The content of the invention
There is low efficiency, high cost, quality for the method processing blade type face in prior art using numerical control mill unstable
Determine, the deficiencies such as batch product requirement can not be met, the problem to be solved in the present invention is to provide a kind of efficiency high, and low cost is reduced in a large number
Cutter consumption and the blade profile precision ECM shaped electrode and processing method of numerical control hold facility time.
To solve above-mentioned technical problem, the technical solution used in the present invention is：
A kind of blade profile precision ECM shaped electrode of the present invention, including blade back shaped electrode, leaf basin shaped electrode and
Positioning and clamping device, wherein positioning and clamping device are installed on the transfer panel of longitudinal Z axis of lathe, and blade workpiece is assemblied in positioning
On clamping device；Blade back shaped electrode and leaf basin shaped electrode are connected with the feed motion axle of electrolysis machine tool X1, X2 axle respectively；Leaf
Back of the body shaped electrode, leaf basin shaped electrode matched moulds, form annular seal space with positioning and clamping device, and blade workpiece is closed in annular seal space
In；Annular seal space passes through electrolyte inlet and electrolyte liquid outlet is connected with External electrolytic liquid pipeline.
Blade back shaped electrode has blade back insulated enclosure block and blade back work negative electrode, and the blade back insulated enclosure block is provided with recessed
Groove, blade back work negative electrode is in the middle part of blade back insulated enclosure block, and forms groove with blade back insulated enclosure block；Leaf basin shaped electrode
With leaf basin insulated enclosure block and leaf basin work negative electrode, leaf basin work negative electrode is located in the middle part of leaf basin insulated enclosure block, in leaf basin work
Make that there is between negative electrode and leaf basin insulated enclosure block boss；Positioning and clamping device is provided with insulated enclosure gland；Groove, boss with
And insulated enclosure gland is corresponding and coordinates, work in blade back and a relative closure is formed between negative electrode and leaf basin work negative electrode
Annular seal space, by including vanes close to be processed, constitutes sealing stabilizer structure.
Blade back work negative electrode and leaf basin work negative electrode are connected with the positive pole of the pulse power by cable, and blade workpiece is by electricity
Cable is connected with the negative pole of the pulse power.
Electrolysis machine tool is the high-frequency narrow-pulse precision ECM lathe for possessing multiaxis, its have quickly can position and respectively with machine
First and second HSK high-precision hydraulic chucks of bed X1, X2 two feed motion axles connection, blade back shaped electrode and leaf basin shaped electrode
It is connected on first and second HSK high-precision hydraulic chucks.
Electrolyte inlet and electrolyte liquid outlet are separately positioned on leaf basin shaped electrode, the two of leaf basin insulated enclosure block
Side, electrolyte inlet are connected with external high pressure electrolysis liquid pipeline.
Blade back shaped electrode front end is provided with negative electrode to knife pin, and the relevant position of leaf basin shaped electrode front end is provided with negative electrode to knife
Hole.
Blade back shaped electrode top is provided with blade to knife pin.
A kind of processing method of blade profile precision ECM shaped electrode of the present invention, comprises the following steps：
Blade back shaped electrode and leaf basin shaped electrode are installed on high-frequency narrow-pulse precision ECM lathe, and determine back of the body molding
The relative position of electrode and leaf basin shaped electrode；
Blade workpiece is assembled on positioning and clamping device, and is installed on the transfer panel of longitudinal Z axis of lathe, and determined
The relative position of blade and blade back shaped electrode；
Blade is sent in the cavity between blade back shaped electrode and leaf basin shaped electrode；
Operation feed shaft operation, makes cavity form annular seal space, by including vanes close to be processed；
Electrolyte inlet is connected into the electrolyte of high pressure, is made sealing intracavity quickly fill with Flow Field Distribution and is uniformly electrolysed
Liquid；
Blade back work negative electrode and leaf basin work negative electrode are connected with the positive pole of the pulse power by cable, and blade workpiece is by electricity
Cable is connected with the negative pole of the pulse power；Blade back work negative electrode, leaf basin work negative electrode and blade between 5～25V of applied voltage, arteries and veins
50～1000Hz of punching, the pulse current of hundreds of to up to ten thousand amperes of electric current；Conduction time is 5～10 minutes.
After completing the processing of a vane foil, by blade back shaped electrode, leaf basin shaped electrode be retracted into backward safety away from
From, the Z axis of clamping blade are raised to into safe distance, the blade to be processed for more renewing, circulation above-mentioned steps complete new blade
The precision ECM processing in type face.
Make cavity formed annular seal space be：The leaf in blade back insulated enclosure block and leaf basin shaped electrode in blade back shaped electrode
Basin insulated enclosure block is corresponding with insulated enclosure gland in positioning and clamping device and coordinates, in blade back work negative electrode and the work of leaf basin
The annular seal space of a relative closure is formed between negative electrode, by including vanes close to be processed, sealing stabilizer structure is constituted.
It is determined that the relative position of back of the body shaped electrode and leaf basin shaped electrode is：
On high-frequency narrow-pulse precision ECM lathe, clamping blade back is distinguished by its first and second HSK high-precision hydraulics chuck
Shaped electrode and leaf basin shaped electrode；
By HSK high-precision hydraulic chucks, quick positioning is simultaneously accurately connected with two feed motion axle of lathe X1, X2, is led to
Crossing electrode pair knife pin guarantees the relative position of blade back shaped electrode and leaf basin shaped electrode.
The invention has the advantages that and advantage：
1. the present invention solves the high processing difficult problem of compressor blade formed precision, proposes a kind of new precision ECM processing
Shaped electrode and its process, it is ensured that blade profile without surplus process, relative to NC Milling method, Electrolyzed Processing
Cost is only the 10% of numerical control mill cost, and efficiency is but its more than 3 times.Ensure that blade part crudy simultaneously, be suitable to big
Batch production, with huge potential benefit.
2. the present invention is closed by the design of a pair of shaped electrode structures and with the assembling of blade clamping workpiece positioner
System constitutes sealing stabilizer structure, it is ensured that blade workpiece and the relative feed movement of electrode, is in pressure in process all the time
Sealing state, it is ensured that the uniformity and stability in flow field, and by selecting machined parameters and processor establishment, realize blade
Type face precision ECM processing, it is possible to achieve batch production efficiently, inexpensive.
3. present invention can apply to compressor blade manufacture field, it is adaptable to the blade of the material such as titanium alloy, high temperature alloy
Type face is processed without surplus, and method is different from traditional machining, using Electrolyzed Processing compressor blade low cost, efficiency high,
Can the technical barrier such as the such blade processing precision height of effectively solving, have broad application prospects.
Description of the drawings
Fig. 1 is blade forming electrode and blade clamping device assembling relationship figure；
Fig. 2 is blade back shaped electrode structural representation；
Fig. 3 is leaf Pengcheng's type electrode structure schematic diagram；
Fig. 4 is blade forming negative electrode and electrolyte flow field schematic diagram.
Wherein, 1 is blade workpiece, and 2 is positioning and clamping device, and 3 is blade back shaped electrode, and 4 is leaf basin shaped electrode, and 5 are
Insulated enclosure gland, 6 is that blade back works negative electrode, 7 be blade to knife pin, 8 is blade back insulated enclosure block (groove), and 9 is blade back electricity
Pole base, 10 is electrode pair knife pin, and 11a is HSK high-precision hydraulic chucks, and 11b is the 2nd HSK high-precision hydraulic chucks,
12 is electrolyte inlet, and 13 is electrolyte liquid outlet, and 14 is leaf basin work negative electrode, and 15 is leaf basin insulated enclosure block, and 16 is leaf
Basin electrodes base, 17 is annular seal space.
Specific embodiment
With reference to Figure of description, the present invention is further elaborated.
The present invention provide it is a kind of for compressor without installing plate class stator blade blade profile precision ECM without surplus process into
Type electrode and process, including three-dimensional airfoil camber work negative electrode, sealing stabilizer structure, electrolyte entry/exit liquid mouth and specially
HSK hydraulic clips are first-class.Work negative electrode is the core tool of blade forming processing, and electrode mould surface portion can be according to zero vane
The different structure of part, by gap calculate and be designed to different shapes, electrolyte flow field adopt the most short principle of stroke, enter/arrange
Gas side enters, and row/leading edge flows out, and makes the course of processing more stable, realizes efficient, low cost processing.
A kind of shaped electrode and process of blade profile precision ECM processing of the present invention, the premise of enforcement is using electricity
Solution or additive method carry out blade it is rough machined on the basis of, blade profile surplus is controlled between 0.3～1.2mm, mainly substantially
Polish is carried out for compressor blade type face and unmanageable front and rear edge, the condition of enforcement is the high frequency narrow arteries and veins for possessing multiaxis
Rush precision ECM lathe.
As shown in figures 1-4, a kind of blade profile precision ECM shaped electrode of the invention, including blade back shaped electrode 3, leaf
Basin shaped electrode 4 and positioning and clamping device 2, wherein positioning and clamping device 2 are installed on the transfer panel of longitudinal Z axis of lathe,
Blade workpiece 1 is assemblied on positioning and clamping device 2；Blade back shaped electrode 3 and leaf basin shaped electrode 4 respectively with electrolysis machine tool X1,
The feed motion axle connection of X2 axles；Blade back shaped electrode 3,4 matched moulds of leaf basin shaped electrode, are formed with positioning and clamping device 2 and are sealed
Chamber, blade workpiece 1 are closed in annular seal space；Annular seal space passes through electrolyte inlet 12 and electrolyte liquid outlet 13 and external electrical
Solution liquid pipeline connection.
As shown in Fig. 2 blade back shaped electrode 3 has blade back insulated enclosure block 8 and blade back work negative electrode 6, the blade back insulate
Sealing block 8 is provided with groove, blade back work negative electrode 6 in the middle part of blade back insulated enclosure block 8, and with 8 shape of blade back insulated enclosure block
Into groove；3 top of blade back shaped electrode is provided with blade to knife pin 7, as electric polar reference point.
As shown in figure 3, leaf basin shaped electrode 4 has leaf basin insulated enclosure block 15 and leaf basin work negative electrode 14, the work of leaf basin
Negative electrode 14 in the middle part of leaf basin insulated enclosure block 15 works in leaf basin and have between negative electrode 14 and leaf basin insulated enclosure block 15 convex
Platform；, the relevant position of 4 front end of leaf basin shaped electrode is provided with negative electrode to tool bore；Positioning and clamping device 2 is provided with insulated enclosure gland
5；Groove, boss and insulated enclosure gland 15 are corresponding and coordinate, and work between negative electrode 6 and leaf basin work negative electrode 14 in blade back
The annular seal space 17 of a relative closure is formed, blade 1 to be processed is enclosed in interior, composition sealing stabilizer structure.Blade back works
Negative electrode 6 and leaf basin work negative electrode 14 are connected with the positive pole of the pulse power by cable, and blade workpiece 1 passes through cable and the pulse power
Negative pole connection.Electrolyte inlet 12 and electrolyte liquid outlet 13 are separately positioned on leaf basin shaped electrode 4, the insulation of leaf basin is close
The both sides of envelope block 15, electrolyte inlet 12 are connected with external high pressure electrolysis liquid pipeline.
As shown in figure 4, clearly to express internal seal structure, this figure is not shown the insulated enclosure gland 5 on top.
A kind of processing method of blade profile precision ECM shaped electrode of the present invention is comprised the following steps：
Blade back shaped electrode 3 and leaf basin shaped electrode 4 are installed on high-frequency narrow-pulse precision ECM lathe, and determination is carried on the back into
The relative position of type electrode 3 and leaf basin shaped electrode 4；
Blade workpiece 1 is assembled on positioning and clamping device 2, and is installed on the transfer panel of longitudinal Z axis of lathe, and really
The relative position of fixed blade and blade back shaped electrode 3；
Blade 1 is sent in the cavity between blade back shaped electrode 3 and leaf basin shaped electrode 4；
Operation feed shaft operation, makes cavity form annular seal space, blade 1 to be processed is enclosed in interior；
Electrolyte inlet 12 is connected into the electrolyte of high pressure, makes Flow Field Distribution to be quickly filled with annular seal space 17 uniformly electric
Solution liquid；
Blade back work negative electrode 6 and leaf basin work negative electrode 14 are connected with the positive pole of the pulse power by cable, and blade workpiece 1 leads to
Cross cable to be connected with the negative pole of the pulse power；Blade back work negative electrode 6, leaf basin work negative electrode 14 and blade 1 between applied voltage 5
The pulse current that hundreds of to up to ten thousand amperes of～25V, 50～1000Hz of pulse, electric current；Conduction time is 5～10 minutes, electric current
Size is determined according to the size of processing blade processing area.
After completing the processing of a vane foil, blade back shaped electrode 3, leaf basin shaped electrode 4 are retracted into into safety backward
The Z axis of clamping blade 1 are raised to safe distance by distance, and the blade to be processed for more renewing, circulation above-mentioned steps complete new leaf
The precision ECM processing in piece type face.
In the present embodiment, first on high-frequency narrow-pulse precision ECM lathe, by its first and second HSK high-precision hydraulic
Chuck 11a, 11b difference clamping blade back shaped electrode 3 and leaf basin shaped electrode 4；By HSK high-precision hydraulics chuck 11, quickly
Positioning is simultaneously accurately connected with two feed motion axle of lathe X1, X2, guarantees blade back shaped electrode 3 and leaf by electrode pair knife pin 10
The relative position of basin shaped electrode 4.
Blade workpiece 1 is assembled on positioning and clamping device 2, and is installed on the transfer panel of longitudinal Z axis of lathe, then
Blade 1 and blade are carried out to knife to knife pin 7, determines 1 relative blade back shaped electrode 3, leaf basin shaped electrode 4 of blade workpiece in Z
To the relative position with Y-direction.Blade workpiece 1 is fed to into the cavity between blade back shaped electrode 3 and leaf basin shaped electrode 4 finally
It is interior, as shown in Figure 1, it is ensured that blade 1 and blade back shaped electrode 3 and the relative position (primary clearance) of leaf basin shaped electrode 4.
Leaf basin work negative electrode 14 in blade back work negative electrode 6 and leaf basin shaped electrode 4 in blade back shaped electrode 3, respectively
The polish in the leaf basin to blade 1, blade back type face is realized, and correspondence blade front and rear edge is designed with work cathode edge
Fillet, it is ensured that the polish to blade front and rear edge, as shown in Figure 4.
Blade back insulated enclosure block 8 is carried in blade back shaped electrode 3 shown in Fig. 2, which has groove part, the groove part
It is close with insulating in the projection section and positioning and clamping device 2 of the leaf basin insulated enclosure block 15 in the leaf basin shaped electrode 4 shown in Fig. 3
Sealed cover 5 is corresponding and coordinates, and works in blade back and the sealing of a relative closure is formed between negative electrode 6 and leaf basin work negative electrode 14
Chamber 17 (such as Fig. 4), blade 1 to be processed is enclosed in interior, composition sealing stabilizer structure.Electrolyte inlet 12 is connected into high pressure
Electrolyte, has just quickly filled with the uniform electrolyte of Flow Field Distribution in annular seal space 17.
Blade back work negative electrode 6, leaf basin work, and rule of thumb law is calculated simultaneously primary clearance between negative electrode 14 and blade 1
It is optimized according to actual experiment result, precision ECM typically can reach 10 μm or so when processing.
Claims (10)
1. a kind of blade profile precision ECM shaped electrode, it is characterised in that：Including blade back shaped electrode, leaf basin shaped electrode with
And positioning and clamping device, wherein positioning and clamping device is installed on the transfer panel of longitudinal Z axis of lathe, and blade workpiece is assemblied in fixed
On the clamping device of position；Blade back shaped electrode and leaf basin shaped electrode are connected with the feed motion axle of electrolysis machine tool X1, X2 axle respectively；
Blade back shaped electrode, leaf basin shaped electrode matched moulds, form annular seal space with positioning and clamping device, and blade workpiece is closed in annular seal space
In；Annular seal space passes through electrolyte inlet and electrolyte liquid outlet is connected with External electrolytic liquid pipeline.
2. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Blade back shaped electrode has leaf
Back of the body insulated enclosure block and blade back work negative electrode, the blade back insulated enclosure block are provided with groove, and blade back work negative electrode is exhausted located at blade back
In the middle part of edge sealing block, and groove is formed with blade back insulated enclosure block；Leaf basin shaped electrode has leaf basin insulated enclosure block and leaf basin
Work negative electrode, leaf basin work negative electrode in the middle part of the leaf basin insulated enclosure block, leaf basin work negative electrode and leaf basin insulated enclosure block it
Between have boss；Positioning and clamping device is provided with insulated enclosure gland；Groove, boss and insulated enclosure gland are corresponding and match somebody with somebody
Close, work in blade back and between negative electrode and leaf basin work negative electrode, form the annular seal space of a relative closure, blade to be processed is sealed
Including closing, sealing stabilizer structure is constituted.
3. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Blade back work negative electrode and leaf basin
Work negative electrode is connected with the positive pole of the pulse power by cable, and blade workpiece is connected with the negative pole of the pulse power by cable.
4. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Electrolysis machine tool is possess multiaxis
High-frequency narrow-pulse precision ECM lathe, which has what is can quickly positioned and be connected with two feed motion axle of lathe X1, X2 respectively
First and second HSK high-precision hydraulic chucks, blade back shaped electrode and leaf basin shaped electrode are connected to first and second HSK high accuracy
On hydraulic chuck.
5. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Electrolyte inlet and electrolysis
Liquid liquid outlet is separately positioned on leaf basin shaped electrode, the both sides of leaf basin insulated enclosure block, electrolyte inlet and external high pressure
Electrolysis liquid pipeline connection.
6. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Blade back shaped electrode front end sets
There is negative electrode to knife pin, the relevant position of leaf basin shaped electrode front end is provided with negative electrode to tool bore.
7. the blade profile precision ECM shaped electrode as described in claim 1, it is characterised in that：Blade back shaped electrode top sets
There is blade to knife pin.
8. a kind of processing method of blade profile precision ECM shaped electrode, it is characterised in that comprise the following steps：
Blade back shaped electrode and leaf basin shaped electrode are installed on high-frequency narrow-pulse precision ECM lathe, and determine back of the body shaped electrode
With the relative position of leaf basin shaped electrode；
Blade workpiece is assembled on positioning and clamping device, and is installed on the transfer panel of longitudinal Z axis of lathe, and determine blade
With the relative position of blade back shaped electrode；
Blade is sent in the cavity between blade back shaped electrode and leaf basin shaped electrode；
Operation feed shaft operation, makes cavity form annular seal space, by including vanes close to be processed；
Electrolyte inlet is connected into the electrolyte of high pressure, makes sealing intracavity quickly fill with the uniform electrolyte of Flow Field Distribution；
Blade back work negative electrode and leaf basin work negative electrode be connected with the positive pole of the pulse power by cable, blade workpiece pass through cable and
The negative pole connection of the pulse power；In blade back work negative electrode, 5～25V of applied voltage, pulse 50 between leaf basin work negative electrode and blade
The pulse current that hundreds of to up to ten thousand amperes of～1000Hz, electric current；Conduction time is 5～10 minutes；
After completing the processing of a vane foil, blade back shaped electrode, leaf basin shaped electrode are retracted into into safe distance backward, will
The Z axis of clamping blade are raised to safe distance, the blade to be processed for more renewing, and circulation above-mentioned steps complete new blade profile
Precision ECM is processed.
9. the processing method of the blade profile precision ECM shaped electrode as described in claim 8, it is characterised in that make cavity shape
Into annular seal space it is：Leaf basin insulated enclosure block in blade back insulated enclosure block in blade back shaped electrode and leaf basin shaped electrode and calmly
In the clamping device of position, insulated enclosure gland is corresponding and coordinates, and works in blade back and form one between negative electrode and leaf basin work negative electrode
The annular seal space of relative closure, by including vanes close to be processed, constitutes sealing stabilizer structure.
10. the processing method of the blade profile precision ECM shaped electrode as described in claim 8, it is characterised in that it is determined that carrying on the back into
The relative position of type electrode and leaf basin shaped electrode is：
On high-frequency narrow-pulse precision ECM lathe, clamping blade back molding is distinguished by its first and second HSK high-precision hydraulics chuck
Electrode and leaf basin shaped electrode；
By HSK high-precision hydraulic chucks, quick positioning is simultaneously accurately connected with two feed motion axle of lathe X1, X2, by electricity
The relative position of blade back shaped electrode and leaf basin shaped electrode is extremely guaranteed to knife pin.
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| CN107999905A (en) * | 2017-11-17 | 2018-05-08 | 南京航空航天大学 | Pipe electrode abrasive particle auxiliary multiple-grooved electrolysis cutting processing apparatus and method |
| CN108015368A (en) * | 2017-12-01 | 2018-05-11 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of design method of blade front and rear edge precision ECM machined electrode |
| CN109158721A (en) * | 2018-09-27 | 2019-01-08 | 中国航空制造技术研究院 | A kind of integral blade disk electrochemical machining method |
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| CN110524377A (en) * | 2019-09-05 | 2019-12-03 | 扬州大学 | A kind of turbine tongue-and-groove ultrasonic wave added precision ECM grinding system and method |
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