CN105618878B - The synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding - Google Patents
The synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding Download PDFInfo
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- CN105618878B CN105618878B CN201610219007.1A CN201610219007A CN105618878B CN 105618878 B CN105618878 B CN 105618878B CN 201610219007 A CN201610219007 A CN 201610219007A CN 105618878 B CN105618878 B CN 105618878B
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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
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Abstract
The invention discloses a kind of synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding, it changes the diamond grinding head in electrochemical grinding process into flexible boundling electric conducting grinding head, electrochemical grinding progress synchronous with electric discharge reinforcing can be achieved, coordinate to add powder in electrolyte and/or be made to contain in the material of flexible boundling electric conducting grinding head again and alloyed metal (AM) or alloying element can be realized with workpiece, it can enter workpiece machining surface by the metal or alloy element infiltration in powder is added in the alloying element and/or electrolyte that are made in flexible boundling electric conducting grinding head material during so as to arc discharge, realize surface alloying formation surface peening layer, realize the Uniform Discharge reinforcing of electrochemical grinding finished surface, improve the surface property of workpiece and improve service life.The present invention can improve electrochemical grinding processing efficiency, improve finished surface physics, chemistry and mechanical performance, and improve the uniformity and surface quality of arc discharge surface peening.
Description
Technical field
The present invention relates to a kind of Compound Machining of metal material, the electrochemical grinding of more particularly to a kind of metal material is synchronous
Arc discharge strengthens combined machining method.
Background technology
Electrochemical grinding processing is that the effect of electrochemistry ablation metal and mechanical grinding strike off passivating film and be combined and realize metal
The Combined Machining Technology of material processing, is mainly used in the difficult machined part such as high rigidity, high intensity and complex-curved processing.Example
Such as China Patent No. ZL2008100232304, publication date is August in 2008 27, and invention and created name is：Numerical control electrolysis machine tool
Composite processing machine tool, this application case is related to a kind of numerical control electrolysis machine tool composite processing machine tool, including lathe bed, frame, horizontal operation
Platform, numerical control double back revolving worktable, protective housing, main tapping, electro spindle, digital control system, the pulse power, electrolyte circulation means, with
And X is to transmission mechanism, Z-direction transmission mechanism, Y-direction transmission mechanism, in above-mentioned electro spindle, the pulse power, electrolyte circulation means
Be electrolysed liquid pump, X to servomotor, Z-direction servomotor, Y-direction servomotor, numerical control double back revolving worktable B to turning motor and C
Turning motor is by digital control system control.This application case carries out transforming into fortune using the bus of conductive abrasive wheel relative to part to be processed
It is dynamic to carry out complex-curved electrochemical grinding processing, can be complex-curved with one-shot forming.On the basis of electrochemical grinding processing, Xue Zhexiang
The new machining methods such as grinding, grinding and electrochemistry ablation combined drilling and counterboring are electrolysed after proposing pulse current.But electrolytic mill
Cut finished surface and be still essentially Electrolyzed Processing surface, interpolar that can be from intuitively electrochemical grinding process is recognized on Fig. 3 adds
Work voltage current waveform is basically unchanged, it is known that electrolysis ablation metal, and grinding is only to remove passivating film and ablation product, processing
Surface Physical Chemistry and mechanical performance do not have be improved significantly, there is the defective effect finished surface such as grain boundary corrosion on the contrary
Energy
Discharging surface reinforcement technique is the technique directly strengthened using the high-energy-density of electric discharge to surface, by putting
Workpiece surface is penetrated into after the high temperature melting electrode material that electricity is produced and improves Surface Physical Chemistry and mechanical performance.Scholar is carried out
Substantial amounts of arc discharge surface strengthening technology research.Common spark discharge, pressure knot body or sintered body electrode electricity are have studied in succession
The surface peening works such as spark discharge in powder, gas, ultrasound auxiliary electric spark surface-discharge are mixed into spark discharge, working solution
Skill.But can not still solve the problems such as strengthening layer is uneven.
Not yet there is the combined machining method for being combined electrochemical grinding with arc discharge hardening constituent in the prior art.
The content of the invention
1. the invention technical problem to be solved
It is an object of the invention to overcome not yet to have combined electrochemical grinding with arc discharge hardening constituent in the prior art
The not enough of combined machining method strengthens Compound Machining there is provided a kind of synchronous arc discharge of flexible boundling electric conducting grinding head electrochemical grinding
Method, using technical scheme, electrochemical grinding is synchronous with electric discharge reinforcing to be combined, and is being added while electrochemical grinding is processed
Work surface forms one layer of uniform strengthening layer, significantly improves electrochemical grinding finished surface physics, chemistry and mechanical performance, and because of electricity
Solution grinding and electric discharge reinforcing interaction, improve the uniformity and surface quality of arc discharge surface peening.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
A kind of synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding of the present invention, it is walked
Suddenly it is：
1) an electrochemical grinding machining tool is set, and electrochemical grinding machining tool includes machine tool chief axis, is clamped in machine tool chief axis
On flexible boundling electric conducting grinding head, work tank, by fixture be arranged on work tank in workpiece, just to workpiece jet electrolytic
The electrolyte playpipe and the pulse power of liquid, the negative pole of the described pulse power are connected with flexible boundling electric conducting grinding head, pulse electricity
The positive pole in source is connected with workpiece, wherein requiring to add powder in electrolyte and/or the material of flexible boundling electric conducting grinding head being made
In containing alloyed metal (AM) or alloying element can be realized with workpiece；
2) machine tool chief axis drives flexible boundling electric conducting grinding head to move to the position that workpiece needs to process, and workpiece is immersed and is electrolysed
Liquid ensures that workpiece needs to have electrolyte at Working position by electrolyte playpipe；
3) given by the pulse power between flexible boundling electric conducting grinding head and workpiece and apply pulse voltage；
4) machine tool chief axis is with constant speed movement, and drives flexible boundling electric conducting grinding head to rotate, and workpiece is carried out
Processing, wherein flexible boundling electric conducting grinding head synchronously completes electrochemical grinding, electricity during contacting and flick with workpiece machining surface
Arc discharge reinforcing and electrochemical grinding are strengthened with arc discharge to interact.
Further, described step 4) in the flexible boundling electric conducting grinding head mistake that contacts and flick with workpiece machining surface
Journey carries out mechanical curettage to the passivating film and ablation product that workpiece machining surface is produced under electrolysis, while flexible boundling is led
Electric grinder forms arc discharge during contacting and flick with workpiece, the alloy in flexible boundling electric conducting grinding head material will be made
The alloying element infiltration added in element and/or electrolyte in powder enters workpiece machining surface, realizes that surface alloying is formed
Surface peening layer, and synchronous electrochemical grinding is carrying out workpiece machining surface with arc discharge reinforcing interaction, i.e. arc discharge
While reinforcing the ablation passivating film that workpiece machining surface is produced under electrolysis and ablation are aided in using the explosive force of generation
Product, electrochemical grinding is carrying out material ablation while workpiece machining surface formation under to being acted in arc discharge to workpiece surface
Surface peening layer is repaired.
Further, described step 4) in electrochemical grinding effect and arc discharge invigoration effect intensity can lead to
The contact crossed between concentration of electrolyte, the electrical parameter of the pulse power and flexible boundling electric conducting grinding head and workpiece machining surface is adjusted
It is whole.
Further, described step 3) in the pulse power voltage range be 1~80V.
Further, described step 1) in flexible boundling electric conducting grinding head is by ring-type wheel pedestal and is formed at ring-type wheel base
Seat periphery and can with workpiece machining surface formation flexible contact boundling conductive bristle constitute.
3. beneficial effect
The technical scheme provided using the present invention, compared with existing known technology, with following remarkable result：
(1) the synchronous arc discharge reinforcing combined machining method of a kind of flexible boundling electric conducting grinding head electrochemical grinding of the invention,
Its simple easily shape, only need to change the diamond grinding head in electrochemical grinding process into flexible boundling electric conducting grinding head, you can electrolysis
Grinding is carried out simultaneously with arc discharge, then coordinates the material that powder is added in electrolyte and/or flexible boundling electric conducting grinding head is made
Containing alloyed metal (AM) or alloying element can be realized with workpiece in material, flexible boundling can will be made during so as to arc discharge conductive
The metal or alloy element infiltration added in alloying element and/or electrolyte in bistrique material in powder enters work pieces process table
Face, realizes surface alloying formation surface peening layer, realizes the Uniform Discharge reinforcing of electrochemical grinding finished surface, improve workpiece
Surface property and raising service life；
(2) the synchronous arc discharge reinforcing combined machining method of a kind of flexible boundling electric conducting grinding head electrochemical grinding of the invention,
While completion electrochemical grinding, arc discharge are strong during its flexible boundling electric conducting grinding head is contacted and flicked with workpiece machining surface
Change and electrochemical grinding are strengthened with arc discharge to interact, by electrochemical grinding combination synchronous with electric discharge reinforcing, in electrochemical grinding
In one layer of uniform surface peening layer of finished surface formation while processing, electrochemical grinding finished surface physics, change are significantly improved
Learn and mechanical performance, and electrochemical grinding and electric discharge reinforcing interaction, be conducive to improving electrochemical grinding processing efficiency, improve electric arc
The uniformity and surface quality of discharging surface strengthening layer, result in the surface peening layer of flat smooth；
(3) the synchronous arc discharge reinforcing combined machining method of a kind of flexible boundling electric conducting grinding head electrochemical grinding of the invention,
Its electrochemical grinding act on and arc discharge invigoration effect intensity can by concentration of electrolyte, the electrical parameter of the pulse power and
Contact adjustment between flexible boundling electric conducting grinding head and workpiece machining surface, electrochemical grinding can be adjusted according to actual needs
Effect and arc discharge invigoration effect intensity；
(4) the synchronous arc discharge reinforcing combined machining method of a kind of flexible boundling electric conducting grinding head electrochemical grinding of the invention,
Its is easy to operate, and using effect is good, it is possible to achieve the high efficiency cutting of material particularly hard-cutting material and surface property synchronously change
It is kind, with it is efficient, inexpensive the characteristics of.
Brief description of the drawings
Fig. 1 strengthens combined machining method for a kind of synchronous arc discharge of flexible boundling electric conducting grinding head electrochemical grinding of the present invention
Middle step 1) structural representation；
Fig. 2 is the interpolar machining voltage current waveform in flexible boundling electric conducting grinding head compound processing course in the present invention；
Fig. 3 is the interpolar machining voltage current waveform in existing electrochemical grinding process.
Label declaration in schematic diagram：1st, flexible boundling electric conducting grinding head；2nd, work tank；3rd, workpiece；4th, electrolyte sprays
Pipe；5th, the pulse power.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
A kind of synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding of the present embodiment, its
Step is：
1) an electrochemical grinding machining tool is set, and electrochemical grinding machining tool includes machine tool chief axis, is clamped in machine tool chief axis
On flexible boundling electric conducting grinding head 1, work tank 2, by fixture be arranged on work tank 2 in workpiece 3, just workpiece 3 is being sprayed
The electrolyte playpipe 4 and the pulse power 5 of electrolyte are penetrated, the negative pole of the pulse power 5 is connected with flexible boundling electric conducting grinding head 1, arteries and veins
The positive pole for rushing power supply 5 is connected with workpiece, and the flexible shape of boundling electric conducting grinding head 1 or relative position change, and can be formed various
Flexible boundling electric conducting grinding head 1 is by ring-type wheel pedestal in the combined machining method of form, including milling, turning, cutting, the present embodiment
With boundling conductive bristle composition (ginseng that be formed at ring-type wheel pedestal periphery and that flexible contact can be formed with the finished surface of workpiece 3
As shown in Figure 1), simple easily shape, only need to change the bistrique that electrochemical grinding is processed into flexible boundling electric conducting grinding head 1, you can electrolytic mill
Cut and carried out simultaneously with arc discharge, wherein requiring to add powder in electrolyte and/or the material of flexible boundling electric conducting grinding head 1 being made
Containing alloyed metal (AM) or alloying element can be realized with workpiece 3 in material, flexible boundling can will be made during so as to arc discharge and lead
Added in alloying element and/or electrolyte in the material of electric grinder 1 the metal or alloy element infiltration in powder enter workpiece 3 plus
Work surface, realizes surface alloying formation surface peening layer, realizes the Uniform Discharge reinforcing of electrochemical grinding finished surface, improve work
Require to add powder in electrolyte in the surface property and raising service life of part 3, the present embodiment and flexible boundling is made
Alloyed metal (AM) or alloying element can be realized with workpiece 3 by containing in the material of electric conducting grinding head 1；
2) machine tool chief axis drives flexible boundling electric conducting grinding head 1 to move to the position that workpiece 3 needs to process, and workpiece 3 is immersed
Electrolyte ensures that workpiece 3 needs to have electrolyte at Working position by electrolyte playpipe 4, is sprayed in the present embodiment by electrolyte
Penetrating pipe 4 ensures that workpiece 3 needs have electrolyte at Working position；
3) given by the pulse power 5 between flexible boundling electric conducting grinding head 1 and workpiece 3 and apply pulse voltage, the pulse power 5
Voltage range is 1~80V；
4) machine tool chief axis is with constant speed movement, and drives flexible boundling electric conducting grinding head to rotate, and workpiece 3 is carried out
Processing, wherein during flexible boundling electric conducting grinding head 1 contact and flicked with the finished surface of workpiece 3 simultaneously completion electrochemical grinding,
Arc discharge is strengthened and electrochemical grinding (can intuitively recognize that waveform includes electricity with arc discharge reinforcing interaction referring to Fig. 2
Arc discharge waveform and electrochemical grinding voltage current waveform, and arc discharge waveform and electrochemical grinding voltage current waveform alternately go out
It is existing), by electrochemical grinding combination synchronous with electric discharge reinforcing, one layer is formed uniformly in finished surface while electrochemical grinding is processed
Surface peening layer, significantly improve electrochemical grinding finished surface physics, chemistry and mechanical performance, and electrochemical grinding with electric discharge hardening constituent
Interaction, is conducive to improving electrochemical grinding processing efficiency, improves the uniformity and surface quality of arc discharge surface peening layer, energy
The surface peening layer of flat smooth is enough obtained, is specially：Flexible boundling electric conducting grinding head 1 is contacted and flicked with the finished surface of workpiece 3
Process under electrolysis the finished surface of workpiece 3 produce passivating film and ablation product carry out mechanical curettage, while flexible
Boundling electric conducting grinding head 1 forms arc discharge during contacting and flick with workpiece 3, and the flexible material of boundling electric conducting grinding head 1 will be made
The alloying element infiltration in powder is added in alloying element and/or electrolyte in material and enters the finished surface of workpiece 3, surface is realized
Alloying formation surface peening layer, improves the physics, chemistry and mechanical performance of finished surface, and synchronous electrochemical grinding is put with electric arc
Electricity reinforcing interaction, i.e. arc discharge aid in losing while the reinforcing of the finished surface of workpiece 3 is carried out using the explosive force of generation
Except the passivating film and ablation product that the finished surface of workpiece 3 is produced under electrolysis, the electrochemical grinding processing finished surface of workpiece 3
While the surface peening layer of the finished surface of workpiece 3 formation is repaired under to being acted in arc discharge, surface peening layer surface is more
Plus it is smooth, surface peening layer is more uniform, and work is strengthened in order to be able to adjust electrochemical grinding effect and arc discharge according to actual needs
With intensity, electrochemical grinding effect and arc discharge invigoration effect intensity can pass through concentration of electrolyte, the pulse power 5
Electrical parameter and flexible boundling electric conducting grinding head 1 and the finished surface of workpiece 3 between contact adjust.
A kind of synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding of the present invention, operation
Convenient, using effect is good, it is possible to achieve the high efficiency cutting of material particularly hard-cutting material is synchronous with surface property to be improved, and is had
Efficiently, inexpensive the characteristics of.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (5)
1. a kind of flexible boundling electric conducting grinding head electrochemical grinding synchronization arc discharge strengthens combined machining method, its step is：
1) an electrochemical grinding machining tool is set, and electrochemical grinding machining tool includes machine tool chief axis, is clamped on machine tool chief axis
Flexible boundling electric conducting grinding head (1), work tank (2), by fixture be arranged on work tank (2) in workpiece (3), just to workpiece
(3) the electrolyte playpipe (4) and the pulse power (5) of jet electrolytic liquid, the negative pole of the described pulse power (5) and flexible boundling
Electric conducting grinding head (1) is connected, and the positive pole of the pulse power (5) is connected with workpiece, wherein requiring to add powder and/or system in electrolyte
Alloyed metal (AM) or alloying element can be realized with workpiece (3) by containing into the material of flexible boundling electric conducting grinding head (1)；
2) machine tool chief axis drives flexible boundling electric conducting grinding head (1) to move to the position that workpiece (3) needs to process, and workpiece (3) is soaked
Enter electrolyte or ensure that workpiece (3) needs have electrolyte at Working position by electrolyte playpipe (4)；
3) given by the pulse power (5) between flexible boundling electric conducting grinding head (1) and workpiece (3) and apply pulse voltage；
4) machine tool chief axis is with constant speed movement, and drives flexible boundling electric conducting grinding head to rotate, and workpiece (3) is added
Work, wherein flexible boundling electric conducting grinding head (1) synchronously completes electrolytic mill during contacting and flick with workpiece (3) finished surface
Cut, arc discharge is strengthened and electrochemical grinding and arc discharge reinforcing interaction.
2. a kind of flexible boundling electric conducting grinding head electrochemical grinding synchronization arc discharge reinforcing Compound Machining according to claim 1
Method, it is characterised in that：Described step 4) in flexible boundling electric conducting grinding head (1) contact and flick with workpiece (3) finished surface
Process mechanical curettage is carried out to the passivating film produced by workpiece (3) finished surface under electrolysis and ablation product, simultaneously
Flexible boundling electric conducting grinding head (1) forms arc discharge during contacting and flick with workpiece (3), flexible boundling will be made conductive
The alloying element infiltration added in alloying element and/or electrolyte in bistrique (1) material in powder enters workpiece (3) processing table
Face, realizes surface alloying formation surface peening layer, and synchronous electrochemical grinding interacts with arc discharge reinforcing, i.e., electric arc is put
Electricity aids in ablation workpiece (3) under electrolysis to process while workpiece (3) surface peening is carried out using the explosive force of generation
Passivating film and ablation product that surface is produced, electrochemical grinding to workpiece (3) surface while material ablation is carried out in electric arc
The surface peening layer of workpiece (3) finished surface formation under discharge process is repaired.
3. a kind of flexible boundling electric conducting grinding head electrochemical grinding synchronization arc discharge reinforcing Compound Machining according to claim 2
Method, it is characterised in that：Described step 4) in electrochemical grinding effect and arc discharge invigoration effect intensity can pass through
Connecing between concentration of electrolyte, the electrical parameter of the pulse power (5) and flexible boundling electric conducting grinding head (1) and workpiece (3) finished surface
Touch pressure is adjusted.
4. a kind of flexible boundling electric conducting grinding head electrochemical grinding synchronization arc discharge reinforcing Compound Machining according to claim 3
Method, it is characterised in that：Described step 3) in the pulse power (5) voltage range be 1~80V.
5. a kind of flexible boundling electric conducting grinding head electrochemical grinding synchronization arc discharge reinforcing Compound Machining according to claim 4
Method, it is characterised in that：Described step 1) in flexible boundling electric conducting grinding head (1) is by ring-type wheel pedestal and is formed at ring-type wheel base
Seat periphery and can with workpiece (3) finished surface formation flexible contact conductive bristle constitute.
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| CN201610219007.1A CN105618878B (en) | 2016-04-08 | 2016-04-08 | The synchronous arc discharge reinforcing combined machining method of flexible boundling electric conducting grinding head electrochemical grinding |
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| CN110560807A (en) * | 2019-09-20 | 2019-12-13 | 中国科学院工程热物理研究所 | Plane grinding and electrolytic combined machining device, system and method |
| CN115055767A (en) * | 2022-07-06 | 2022-09-16 | 青岛理工大学 | Electrolytic grinding cathode for manufacturing complex internal channel by using polishing laser additive and application thereof |
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| JP2000167715A (en) * | 1998-12-04 | 2000-06-20 | Hitachi Ltd | Honing method grinding method and device for carrying out these methods |
| US6717094B2 (en) * | 2002-07-22 | 2004-04-06 | Edward L. Beaumont | Electrical discharge machine and methods of establishing zero set conditions for operation thereof |
| CN201511193U (en) * | 2009-09-09 | 2010-06-23 | 彭婧 | Electrical discharge machine for non-conducting materials |
| CN102430823B (en) * | 2011-10-25 | 2014-04-02 | 华南理工大学 | Flexible electromagnetic pole compounding tool |
| CN203031072U (en) * | 2012-11-14 | 2013-07-03 | 天津世纪慧芯科技发展有限公司 | High-speed electric spark toolroom machine |
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