CN104959686A - Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method - Google Patents
Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method Download PDFInfo
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- CN104959686A CN104959686A CN201510290356.8A CN201510290356A CN104959686A CN 104959686 A CN104959686 A CN 104959686A CN 201510290356 A CN201510290356 A CN 201510290356A CN 104959686 A CN104959686 A CN 104959686A
- Authority
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- China
- Prior art keywords
- wire
- discharge machining
- aluminium alloy
- electrical discharge
- modification method
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009763 wire-cut EDM Methods 0.000 title claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title abstract description 7
- 238000002715 modification method Methods 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000013556 antirust agent Substances 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 8
- 239000006174 pH buffer Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229940008099 dimethicone Drugs 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 4
- -1 fatty alcohol amine Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- 150000004671 saturated fatty acids Chemical class 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 4
- 239000003549 soybean oil Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 abstract description 6
- 239000002173 cutting fluid Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 7
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- 229910021538 borax Inorganic materials 0.000 description 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/04—Apparatus for supplying current to working gap; Electric circuits specially adapted therefor
-
- 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
- B23H7/34—Working media
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)
- Lubricants (AREA)
Abstract
The invention provides a wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method comprising the following steps: a, improving conducting block current input mode; b, reasonably adjusting linear cutting processing electric parameters; c, replacing novel cutting fluid. The technology improved method is simple and reasonable, can effectively solve fracture wire problem, obtains better processing surface roughness quality, improves processing efficiency, and ensures product quality requirements.
Description
Technical field
The present invention relates to a kind of processing technology to improve one's methods, particularly relate to a kind of process modification method of Wire-cut Electrical Discharge Machining aluminium alloy, belong to Wire-cut Electrical Discharge Machining technical field.
Background technology
Wire-cut Electrical Discharge Machining be a kind of contactless, without the special process method of remarkable machine cut power, the instantaneous localized hyperthermia that it produces when being and utilizing pulse spark electric discharge between wire electrode and workpiece, make the medium ionization puncture between surface of the work point of discharge, by metal molten, gasification and cutting forming.Wire-cut Electrical Discharge Machining has the advantage of many uniquenesses, can process the workpiece etc. of various difficulty processing and the material that cannot process and complicated shape.
Along with developing rapidly of metal-processing industry, Electric Discharge Wire-cutting Technology have also been obtained and develops on a large scale very much.Aluminium alloy has good formability, weldability, machinable energy, still can maintain good intensity after annealing, and thus the processing of the Al alloy parts ratio of occupying in machining is increasing.At present, Wire-cut Electrical Discharge Machining is widely applied in the processing of Al alloy parts, but, traditional Machining Technology with WEDM is due to the reason such as conducting block electric discharge impact, that discharge parameter is selected is improper, cutting fluid improper use, cause, when processing thicker workpiece, fracture of wire phenomenon easily occurs, and easily there is light and shade spot strip lines in processing work surface, has a strong impact on surface roughness and the working (machining) efficiency of workpiece.
Summary of the invention
For the demand, the invention provides a kind of process modification method of Wire-cut Electrical Discharge Machining aluminium alloy, this process modification method advantages of simple, not only efficiently solve fracture of wire problem, and obtain good machined surface roughness quality, improve working (machining) efficiency simultaneously, ensure that product quality requirement.
The present invention is a kind of process modification method of Wire-cut Electrical Discharge Machining aluminium alloy, and described process modification method comprises the steps: that a) improving conducting block enters electric mode, and b) Reasonable adjustment linear cutter electrical quantity, c) changes Novel cutting liquid.
In a preferred embodiment of the present invention, in described step a), employing is cut aluminium assembly and is entered electric mode to improve conducting block, and this is cut aluminium assembly and enters electric mode by armature of direct current motor, utilizes carbon brush to the silk cylinder supply high frequency electricity of wire-moving system.
In a preferred embodiment of the present invention, in described step b), linear cutter electrical quantity value can be adjusted to: pulse width 18, inter-train pause 16, power tube number 5, gap voltage 4, feed speed 50.
In a preferred embodiment of the present invention, in described step b), linear cutter electrical quantity value can be adjusted to: pulse width 20, inter-train pause 18, power tube number 6, gap voltage 4, feed speed 55.
In a preferred embodiment of the present invention, in described step c), the composition that Novel cutting liquid comprises and percentage by weight are: compounded lubricant 10%, OP-10 emulsifying agent 12%, Span-80 non-ionic surface active agent 6%, composite antirust agent 8%, pH buffer 3.5%, dimethicone defoamer 0.5%, deionized water 60%.
In a preferred embodiment of the present invention, described compounded lubricant is mixed with quality proportioning 2:2:1 by soybean oil, isomery saturated fatty acid, fatty alcohol amine.
In a preferred embodiment of the present invention, by BTA and triethanolamine, 3:1 is composite in mass ratio forms in described composite antirust agent.
Present invention is disclosed a kind of process modification method of Wire-cut Electrical Discharge Machining aluminium alloy, this process modification method advantages of simple, not only efficiently solves fracture of wire problem, and obtains good machined surface roughness quality, improve working (machining) efficiency simultaneously, ensure that product quality requirement.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the process figure of the process modification method of embodiment of the present invention Wire-cut Electrical Discharge Machining aluminium alloy.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the process figure of the process modification method of embodiment of the present invention Wire-cut Electrical Discharge Machining aluminium alloy; This process modification method comprises the steps: that a) improving conducting block enters electric mode, and b) Reasonable adjustment linear cutter electrical quantity, c) changes Novel cutting liquid.
The process modification method of the Wire-cut Electrical Discharge Machining aluminium alloy that the present invention mentions changes silk cylinder supply high frequency electricity to wire-moving system into by original conducting block being entered electric mode, avoids the conducting block itself when silk cylinder commutates and to discharge wired, the fracture of wire phenomenon that cause; By selecting suitable feed-speed, adopting Square wave pulses power supply, selecting suitable pulse width, inter-train pause, power tube number and gap voltage, improve machined surface roughness, and enhance productivity; By using the Novel cutting liquid from preparation, improve working (machining) efficiency and the processing stability of linear cutter; Novel cutting liquid life cycle is wherein long, nontoxic, has the excellent properties that thermal conductivity factor is large, cooling, lubricity and rust-preventing characteristic are good.
Embodiment 1
Concrete processing method is as follows:
A) improve conducting block and enter electric mode, adopt and cut aluminium assembly and enter electric mode to improve conducting block, this is cut aluminium assembly and enters electric mode by armature of direct current motor, utilizes carbon brush to the silk cylinder supply high frequency electricity of wire-moving system, thus avoids that conducting block is wired, fracture of wire phenomenon.
B) Reasonable adjustment linear cutter electrical quantity, the voltage that linear cutter is selected is normal pressure, and discharge waveform is Square wave pulses, and its electrical quantity is adjusted to: pulse width 18, inter-train pause 16, power tube number 5, gap voltage 4, feed speed 50.
C) change Novel cutting liquid, the composition that the Novel cutting liquid selected comprises and percentage by weight are: compounded lubricant 10%, OP-10 emulsifying agent 12%, Span-80 non-ionic surface active agent 6%, composite antirust agent 8%, pH buffer 3.5%, dimethicone defoamer 0.5%, deionized water 60%.Wherein, compounded lubricant is mixed with quality proportioning 2:2:1 by soybean oil, isomery saturated fatty acid, fatty alcohol amine; By BTA and triethanolamine, 3:1 is composite in mass ratio forms in composite antirust agent; 6:1 is composite in mass ratio forms by sodium tetraborate and salicylic acid for pH buffer.
Embodiment 2
Concrete processing method is as follows:
A) improve conducting block and enter electric mode, adopt and cut aluminium assembly and enter electric mode to improve conducting block, this is cut aluminium assembly and enters electric mode by armature of direct current motor, utilizes carbon brush to the silk cylinder supply high frequency electricity of wire-moving system, thus avoids that conducting block is wired, fracture of wire phenomenon.
B) Reasonable adjustment linear cutter electrical quantity, the voltage that linear cutter is selected is normal pressure, and discharge waveform is Square wave pulses, and its electrical quantity is adjusted to: pulse width 20, inter-train pause 18, power tube number 6, gap voltage 4, feed speed 55.
C) change Novel cutting liquid, the composition that the Novel cutting liquid selected comprises and percentage by weight are: compounded lubricant 10%, OP-10 emulsifying agent 12%, Span-80 non-ionic surface active agent 6%, composite antirust agent 8%, pH buffer 3.5%, dimethicone defoamer 0.5%, deionized water 60%.Wherein, compounded lubricant is mixed with quality proportioning 2:2:1 by soybean oil, isomery saturated fatty acid, fatty alcohol amine; By BTA and triethanolamine, 3:1 is composite in mass ratio forms in composite antirust agent; 6:1 is composite in mass ratio forms by sodium tetraborate and salicylic acid for pH buffer.
Present invention is disclosed a kind of process modification method of Wire-cut Electrical Discharge Machining aluminium alloy, this process modification method advantages of simple, not only efficiently solves fracture of wire problem, and obtains good machined surface roughness quality, improve working (machining) efficiency simultaneously, ensure that product quality requirement.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (7)
1. a process modification method for Wire-cut Electrical Discharge Machining aluminium alloy, is characterized in that, described process modification method comprises the steps: that a) improving conducting block enters electric mode, and b) Reasonable adjustment linear cutter electrical quantity, c) changes Novel cutting liquid.
2. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 1, it is characterized in that, in described step a), employing is cut aluminium assembly and is entered electric mode to improve conducting block, this is cut aluminium assembly and enters electric mode by armature of direct current motor, utilizes carbon brush to the silk cylinder supply high frequency electricity of wire-moving system.
3. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 1, is characterized in that, in described step b), linear cutter electrical quantity value can be adjusted to: pulse width 18, inter-train pause 16, power tube number 5, gap voltage 4, feed speed 50.
4. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 1, is characterized in that, in described step b), linear cutter electrical quantity value can be adjusted to: pulse width 20, inter-train pause 18, power tube number 6, gap voltage 4, feed speed 55.
5. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 1, it is characterized in that, in described step c), the composition that Novel cutting liquid comprises and percentage by weight are: compounded lubricant 10%, OP-10 emulsifying agent 12%, Span-80 non-ionic surface active agent 6%, composite antirust agent 8%, pH buffer 3.5%, dimethicone defoamer 0.5%, deionized water 60%.
6. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 5, is characterized in that, described compounded lubricant is mixed with quality proportioning 2:2:1 by soybean oil, isomery saturated fatty acid, fatty alcohol amine.
7. the process modification method of Wire-cut Electrical Discharge Machining aluminium alloy according to claim 5, is characterized in that, by BTA and triethanolamine, 3:1 is composite in mass ratio forms in described composite antirust agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290356.8A CN104959686A (en) | 2015-06-01 | 2015-06-01 | Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510290356.8A CN104959686A (en) | 2015-06-01 | 2015-06-01 | Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method |
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| CN104959686A true CN104959686A (en) | 2015-10-07 |
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| CN201510290356.8A Pending CN104959686A (en) | 2015-06-01 | 2015-06-01 | Wire cut electrical discharge machining (WEDM) processing aluminium alloy technology improved method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070256939A1 (en) * | 2004-05-07 | 2007-11-08 | General Electric Company | Methods and Apparatus for Electroerosion |
| CN101342624A (en) * | 2008-08-15 | 2009-01-14 | 南京航空航天大学 | Method for Improving Surface Integrity in Wire Cutting EDM |
| CN201405148Y (en) * | 2009-05-18 | 2010-02-17 | 成都电子机械高等专科学校 | High-speed wire cutting machine tool electrifying device |
| CN104371818A (en) * | 2014-10-16 | 2015-02-25 | 苏州市宝玛数控设备有限公司 | High-performance water-based full-synthetic cutting fluid and preparation method thereof |
-
2015
- 2015-06-01 CN CN201510290356.8A patent/CN104959686A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070256939A1 (en) * | 2004-05-07 | 2007-11-08 | General Electric Company | Methods and Apparatus for Electroerosion |
| CN101342624A (en) * | 2008-08-15 | 2009-01-14 | 南京航空航天大学 | Method for Improving Surface Integrity in Wire Cutting EDM |
| CN201405148Y (en) * | 2009-05-18 | 2010-02-17 | 成都电子机械高等专科学校 | High-speed wire cutting machine tool electrifying device |
| CN104371818A (en) * | 2014-10-16 | 2015-02-25 | 苏州市宝玛数控设备有限公司 | High-performance water-based full-synthetic cutting fluid and preparation method thereof |
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Application publication date: 20151007 |