CN105562854A - One-way wire cut electrical discharge machining method circularly utilizing electrode wire - Google Patents
One-way wire cut electrical discharge machining method circularly utilizing electrode wire Download PDFInfo
- Publication number
- CN105562854A CN105562854A CN201610083097.6A CN201610083097A CN105562854A CN 105562854 A CN105562854 A CN 105562854A CN 201610083097 A CN201610083097 A CN 201610083097A CN 105562854 A CN105562854 A CN 105562854A
- Authority
- CN
- China
- Prior art keywords
- wire
- reverse
- travelling speed
- unidirectional electrical
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
-
- 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
- B23H2400/00—Moving mechanisms for tool electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
A one-way wire cut electrical discharge machining method circularly utilizing an electrode wire comprises a forward wire walking step and a reverse wire walking step. The wire walking direction of the forward wire walking step is opposite to that of the reverse wire walking step. In the forward wire walking step, discharge cutting machining is conducted during wire walking, and in the reverse wire walking step, the discharge cutting machining is suspended during wire walking. By means of the method, the utilization rate of the electrode wire can be increased, and meanwhile the machining precision can be improved.
Description
Technical field
The application belongs to wire cutting technology technical field, particularly relates to a kind of unidirectional electrical EDM procedure recycling wire electrode.
Background technology
Spark machined utilizes pulse spark electric discharge removal machined material to process, do not contact because there is liquid dielectric between machined electrode with machined material, so available softer electrode (instrument) processes conductor and the semi-conducting materials such as hard and crisp metal.Wire electrode cutting processing with movement in spark machined is the most extensive.Wire electrode is cut with unidirectional wire (slow wire feeding) and the large type of to-and-fro thread (fast wire winding) two, wherein to-and-fro thread Linear cut is the electromechanical integration technology of China's independent development capability, by China is peculiar, its advantage is that equipment manufacturing cost is cheap, and molybdenum alloy electrode silk (molybdenum filament) can repeatedly discharge use repeatedly.Be particularly suitable for the processing of high rigidity that machining is difficult to be competent at, high strength, high-melting-point, high tenacity, brittle materials (as: tungsten-molybdenum alloy, memorial alloy, magnesium alloy, carbide alloy, polycrystalline diamond, neodymium iron boron etc.), be widely used in the processing of the precision in each fields such as Mold Making, space flight and aviation, medicine equipment, instrument and meter, electronic apparatus, machine-building or special-shaped parts, manufacture.
The wire electrode (being generally copper alloy silk) of existing unidirectional wire cutting is all that a through type uses at present, wire electrode is drawn to deliver to by wire storage cylinder and leaves processing district after once discharging in processing district and just scrapped, and especially causes the serious waste of wire electrode during little energy cuts; The wire electrode of to-and-fro thread Linear cut is repeatedly Reusability, but forms commutation striped because of the cutting of all discharging of the both direction of to-and-fro thread, and the precision of processing is worse than unidirectional wire cutting far away.
Summary of the invention
The present invention provides the unidirectional electrical EDM procedure recycling wire electrode for overcoming the technical problem that exists in prior art, and the method can improve machining accuracy while the utilization rate improving wire electrode.
A kind of unidirectional electrical EDM procedure recycling wire electrode, comprise forward wire step and reverse wire step, the wire direction of forward wire step is contrary with the wire direction of reverse wire step, in forward wire step, carry out electric discharge cutting processing during wire, in reverse wire step, suspend electric discharge cutting processing during wire.
By carrying out electric discharge cutting processing when forward wire, and electric discharge cutting processing is suspended when reverse wire, can avoid in existing two-way wire technology, the commutation striped that formed is cut in to-and-fro thread electric discharge, makes machining accuracy and surface roughness can close to the level of unidirectional wire.Meanwhile, the advantage of to-and-fro thread Linear cut can also be possessed, recycling of wire electrode can be realized, the wire electrode consumption of mean unit processing length only have unidirectional wire to cut about 1/3, reduce the consumption of wire electrode, significantly improve the utilization rate of wire electrode.
Preferred technical scheme, its additional technical feature is: the wire travelling speed oppositely in wire step is greater than the wire travelling speed in forward wire step.
In the reverse wire step without the need to taking power, cutting accuracy into account, improving the speed of wire, the auxiliary movement time in Linear cut process can be reduced, improve the speed of Linear cut.
Preferred technical scheme further, its additional technical feature is: when processing a certain machining element of workpiece, carry out forward wire, after machining above-mentioned machining element, then carries out reverse wire.
When processing single machining element, only carrying out forward wire, avoiding the commutation band that to-and-fro thread Linear cut produces, meanwhile, also make full use of and realize reverse wire unproductive time, reduce overall time loss.In order to adapt to the program, storage filament length degree on wire electrode silk bucket can reach a more than myriametre (and the storage filament length degree on the silk bucket of common two-way wire only have 2 kms about), be enough to meet single and complete processing needs to single machining element, without the need to commutating in the cutting process to single machining element.
Preferred technical scheme, its additional technical feature is: the power supply used in forward wire step is the pulse power, and the frequency of the pulse power is 2-8MHz.
By improving the frequency of the pulse power, can working (machining) efficiency be improved, and reduce the corrosion of spark cutting.
Preferred technical scheme, its additional technical feature is: the wire travelling speed in forward wire step is 1-8m/s.
This velocity interval, is conducive to, while guarantee machining accuracy and surface roughness, improving working (machining) efficiency as much as possible.
Preferred technical scheme, its additional technical feature is: the wire travelling speed oppositely in wire step is 8-20m/s.
Adopt this speed to carry out reverse wire, be conducive to the unproductive time reducing discharge off cutting operation, make the time of cutting of discharging, more than 2/3 of the activity duration can be accounted for, even to 4/5, working (machining) efficiency can be improve.
Preferred technical scheme further, its additional technical feature is: when processing a certain machining element, carries out forward wire, after machining above-mentioned machining element, then carries out reverse wire; Wire travelling speed in reverse wire step is 12m/s, wire travelling speed in forward wire step is 4m/s, in forward wire step and in reverse wire step, uses electrode position retainer, the power supply used in forward wire step is the pulse power, and the frequency of the pulse power is 4MHz; Discharge medium adopts water-soluble wire cutting liquid.
When processing single machining element, only carrying out forward wire, avoiding the commutation band that to-and-fro thread Linear cut produces, meanwhile, also make full use of and realize reverse wire unproductive time, reduce overall time loss.
By being 4MHz by the frequency setting of the pulse power, can working (machining) efficiency be improved, and reduce the corrosion of spark cutting.
Adopt the speed of 4m/s to carry out forward wire, be conducive to, while guarantee machining accuracy and surface roughness, improving working (machining) efficiency as much as possible.Adopt the speed of 12m/s to carry out reverse wire, be conducive to the unproductive time reducing discharge off cutting operation, make the time of cutting of discharging, the half that can account for the activity duration, to 3/4, improves working (machining) efficiency.
Use water-soluble wire cutting liquid as discharge medium, Long-Time Service do not discharge (or seldom discharge), to working environment and the Nature pollution-free, nontoxic, harmless, and non-stimulated to human body.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and be described in detail as follows:
Embodiment 1:
Recycle a unidirectional electrical EDM procedure for wire electrode, comprising forward wire step and reverse wire step, when processing a certain machining element, carrying out forward wire, after above-mentioned machining element is machined, then carry out reverse wire.Wherein the wire direction of forward wire step is contrary with the wire direction of reverse wire step, in forward wire step, carry out electric discharge cutting processing during wire, in reverse wire step, suspend electric discharge cutting processing during wire.
By carrying out electric discharge cutting processing when forward wire, and electric discharge cutting processing is suspended when reverse wire, can avoid in existing two-way wire technology, the commutation striped that formed is cut in to-and-fro thread electric discharge, makes machining accuracy and surface roughness can close to the level of unidirectional wire.Meanwhile, as to-and-fro thread Linear cut, the consumption of wire electrode can also be reduced, improve the utilization rate of wire electrode.
In the reverse wire step without the need to taking power, cutting accuracy into account, improving the speed of wire, the auxiliary movement time in Linear cut process can be reduced, improve the speed of Linear cut.
Particularly, on the basis of existing quick-wire-moving linear cutting machine, employing frequency is the high frequency nanosecond pulse power supply of 4MHz, after installing 8 column type wire electrode retainers additional, Linear cut is carried out in the water-soluble discharging composition described in Chinese patent literature CN101161797B, cutting Gr12 mould steel, thickness of workpiece is 45mm, electrode adopts the molybdenum filament of 0.18 mm dia, forward wire travelling speed 4m/s, reverse wire travelling speed 12m/s, the cubic main body of cutting processing 10mm × 10mm × 45mm, surface roughness is Ra:0.007 ~ 0.009mm, finished surface is without commutation striped, the surface quality of a cutting processing reaches " middle wire " lathe and cuts one and repair two, repeat for three times to cut the effect of repairing.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is, cutting 9Cr2 mould steel, thickness of workpiece are 10mm, electrode adopts the molybdenum filament of 0.12 mm dia, the wire travelling speed of forward wire is 1m/s, the speed of reverse wire is 8m/s, and the frequency of the pulse power is the sheet material of 8MHz, cutting processing 150mm × 50mm × 10mm, surface roughness is Ra:0.007 ~ 0.009mm, and finished surface is without commutation striped.
Embodiment 3:
The difference part of the present embodiment and embodiment 1 is, in the present embodiment, cutting GCr15 bearing steel, bar diameter is 100mm, and electrode adopts the tungsten-molybdenum alloy silk of 0.18 mm dia, and the wire travelling speed of forward wire is 8m/s, the speed of reverse wire is 20m/s, the frequency of the pulse power is 2MHz, and surface roughness is Ra:0.007 ~ 0.009mm, and finished surface is without commutation striped.
Although be described the preferred embodiments of the present invention above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing under the ambit that present inventive concept and claim protect, a lot of form can also be made, such as: 1. mutually combined by technical characteristic not conflicting in each embodiment.These all belong within protection scope of the present invention.
Claims (7)
1. one kind recycles the unidirectional electrical EDM procedure of wire electrode, it is characterized in that: comprise forward wire step and reverse wire step, the wire direction of described forward wire step is contrary with the wire direction of described reverse wire step, in described forward wire step, carry out electric discharge cutting processing during wire, in described reverse wire step, suspend electric discharge cutting processing during wire.
2. the unidirectional electrical EDM procedure recycling wire electrode according to claim 1, is characterized in that: the wire travelling speed in described reverse wire step is greater than the wire travelling speed in described forward wire step.
3. the unidirectional electrical EDM procedure recycling wire electrode according to claim 2, it is characterized in that: when processing a certain machining element of workpiece, carry out forward wire, after above-mentioned machining element is machined, then carry out reverse wire.
4. the unidirectional electrical EDM procedure recycling wire electrode according to claim 1, is characterized in that: the power supply used in described forward wire step is the pulse power, and the frequency of the described pulse power is 2-8MHz.
5. the unidirectional electrical EDM procedure recycling wire electrode according to claim 1, is characterized in that: the wire travelling speed in described forward wire step is 1-8m/s.
6. the unidirectional electrical EDM procedure recycling wire electrode according to any one of claim 1, is characterized in that: the wire travelling speed in described reverse wire step is 8-20m/s.
7. the unidirectional electrical EDM procedure recycling wire electrode according to claim 2, is characterized in that: when processing a certain machining element, carries out forward wire, after machining above-mentioned machining element, then carries out reverse wire;
Wire travelling speed in described reverse wire step is 12m/s, wire travelling speed in described forward wire step is 4m/s, in described forward wire step and in described reverse wire step, use electrode position retainer, the power supply used in described forward wire step is the pulse power, and the frequency of the described pulse power is 4MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083097.6A CN105562854A (en) | 2016-02-06 | 2016-02-06 | One-way wire cut electrical discharge machining method circularly utilizing electrode wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610083097.6A CN105562854A (en) | 2016-02-06 | 2016-02-06 | One-way wire cut electrical discharge machining method circularly utilizing electrode wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105562854A true CN105562854A (en) | 2016-05-11 |
Family
ID=55873780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610083097.6A Pending CN105562854A (en) | 2016-02-06 | 2016-02-06 | One-way wire cut electrical discharge machining method circularly utilizing electrode wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105562854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825808A (en) * | 2017-02-08 | 2017-06-13 | 北京东兴润滑剂有限公司 | Double unidirectional electric spark wire cutting methods |
| CN107570824A (en) * | 2017-09-22 | 2018-01-12 | 北京东兴润滑剂有限公司 | The unidirectional wire electric spark wire cutting method of double and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288966A (en) * | 1992-01-27 | 1994-02-22 | Brother Kogyo Kabushiki Kaisha | Wire-cut electrical discharge machine having wire electrode cutting device |
| CN1569374A (en) * | 2003-07-22 | 2005-01-26 | 深圳福斯特数控机床有限公司 | Electric spark wire cutting processing method and apparatus |
| CN200960574Y (en) * | 2006-09-28 | 2007-10-17 | 顾元章 | Reciprocating and unidirectional composite wire cutting, discharging and processing machine tool |
| CN101337296A (en) * | 2008-08-12 | 2009-01-07 | 江苏三星机械制造有限公司 | Cutting method of electric spark wire-electrode cutting machine by to-and-fro travelling wire |
| CN101780571A (en) * | 2010-03-16 | 2010-07-21 | 赵红九 | Wire-cut annular wire electrode storing and operating device and one-way wire cutting machine |
| CN202224785U (en) * | 2011-09-29 | 2012-05-23 | 李二强 | Wire-moving system capable of moving wire by exchanging double wires during electrospark wire cutting |
-
2016
- 2016-02-06 CN CN201610083097.6A patent/CN105562854A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288966A (en) * | 1992-01-27 | 1994-02-22 | Brother Kogyo Kabushiki Kaisha | Wire-cut electrical discharge machine having wire electrode cutting device |
| CN1569374A (en) * | 2003-07-22 | 2005-01-26 | 深圳福斯特数控机床有限公司 | Electric spark wire cutting processing method and apparatus |
| CN200960574Y (en) * | 2006-09-28 | 2007-10-17 | 顾元章 | Reciprocating and unidirectional composite wire cutting, discharging and processing machine tool |
| CN101337296A (en) * | 2008-08-12 | 2009-01-07 | 江苏三星机械制造有限公司 | Cutting method of electric spark wire-electrode cutting machine by to-and-fro travelling wire |
| CN101780571A (en) * | 2010-03-16 | 2010-07-21 | 赵红九 | Wire-cut annular wire electrode storing and operating device and one-way wire cutting machine |
| CN202224785U (en) * | 2011-09-29 | 2012-05-23 | 李二强 | Wire-moving system capable of moving wire by exchanging double wires during electrospark wire cutting |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825808A (en) * | 2017-02-08 | 2017-06-13 | 北京东兴润滑剂有限公司 | Double unidirectional electric spark wire cutting methods |
| WO2018145549A1 (en) * | 2017-02-08 | 2018-08-16 | 何赐文 | Bidirectional and unidirectional spark-erosion wire cutting method |
| CN106825808B (en) * | 2017-02-08 | 2019-01-22 | 北京东兴润滑剂有限公司 | Double unidirectional electric spark wire cutting methods |
| CN107570824A (en) * | 2017-09-22 | 2018-01-12 | 北京东兴润滑剂有限公司 | The unidirectional wire electric spark wire cutting method of double and system |
| CN107570824B (en) * | 2017-09-22 | 2019-09-20 | 北京东兴润滑剂有限公司 | The unidirectional wire electric spark wire cutting method of double-station and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101797713B (en) | Grinding/electrolyzing composite multiline-cutting processing method for silicon wafer | |
| CN105522239B (en) | Revolving body surface boss structure Electrolyzed Processing bipolar electrode and its electrochemical machining method | |
| CN102091839B (en) | Bunched electrode high-speed discharge processing method | |
| CN108372335B (en) | A kind of electrochemical machining method in intensive rectangle hole | |
| CN106312208B (en) | Impressed current anode electrolytic mill Milling Machining system and method | |
| CN110340469B (en) | Gas-liquid combined electrode and electrolytic machining method | |
| CN103586625B (en) | A kind of Thin-Wall Outer Casing seam wearing and tearing and deformation repair method | |
| CN105269284A (en) | Ultra-precise efficient preparing technology method of inward-concave PCD cutter with complex outline | |
| CN106825808B (en) | Double unidirectional electric spark wire cutting methods | |
| CN104907648A (en) | Arc profile cutting discharge processing method based on combined arc breaking and efficient chip removal | |
| CN105562854A (en) | One-way wire cut electrical discharge machining method circularly utilizing electrode wire | |
| CN101342624A (en) | Method for improving completeness integrity of electrospark wire-electrode cutting finished surface | |
| CN104972183A (en) | Robot efficient and flexible electrical discharge machining method | |
| CN103231134B (en) | A kind of electrolysis electric spark sutting machining device of non-conducting material and method | |
| CN103801771A (en) | High-speed cutting electro-discharge machining method | |
| CN104551277A (en) | Wire saw winding tool electrode for electrochemical-mechanical combined processing | |
| CN110625207B (en) | Cathode tool and method for removing burrs of internal cross hole through electrolysis | |
| CN108620699A (en) | Anti- short-circuit porous high-efficiency fliud flushing electrode for arc discharge processing | |
| CN110315154A (en) | A kind of wire electric discharge machine method | |
| CN107891201A (en) | Cast revolving parts casting surplus and cast the electrochemical machining method of rising head | |
| CN204366212U (en) | A kind of scroll saw coiling tool-electrode for electrochemical-mechanical Compound Machining | |
| CN105290723B (en) | The nontraditional precision machining method of ion source of ion implanter ionization starting the arc chamber assembly | |
| CN102658403A (en) | Substrate electrode of electrical discharge machining mold and method for machining mold | |
| CN102672290A (en) | Electrochemistry-mechanical composite passivating method of cutting edge of hard alloy cutter | |
| CN102310487B (en) | Method for controlling processing edge breakage of ceramic material by applying prestress in circumferential wrapping way |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
|
| RJ01 | Rejection of invention patent application after publication |