CN100457346C - Electric spark composite machining process in magnetic field - Google Patents
Electric spark composite machining process in magnetic field Download PDFInfo
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- CN100457346C CN100457346C CNB2006100124372A CN200610012437A CN100457346C CN 100457346 C CN100457346 C CN 100457346C CN B2006100124372 A CNB2006100124372 A CN B2006100124372A CN 200610012437 A CN200610012437 A CN 200610012437A CN 100457346 C CN100457346 C CN 100457346C
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Abstract
A technology combining magnetic field with electrospark for machining the magnetically nonconductive metallic material includes such steps as designing the magnetic supply unit of electromagnet, connected to the electrode terminals of electrospark machine, debugging and installing, connecting the workpiece to be machined with the positive electrode of pulse power supply, connecting the machining tool to its negative electrode, supplying the running water as its working liquid, optimizing technological parameters, measuring the machining speed and surface roughness, and observing the chip discharging state.
Description
One, technical field
Electric spark composite machining process in magnetic field of the present invention belongs to the special processing technology field, is adapted to process the metal material of non-magnetic conduction, specifically, relates to two kinds of compound technologies of energy of a kind of magnetic energy and electric energy.
Two, background technology
Along with improving constantly of mechanical product quality, press for the problem of solution, improve the surface quality of part exactly.Effectively improve method of processing parts development, popularization and the social economy etc. of new product are played very great function.Along with the appearance of new material, new construction, as the processing of various hard-cutting materials; The processing of various complex surfaces; Various super essences, polishing or have the processing problems of the part of specific (special) requirements.These only rely on traditional cutting working method just to be difficult to realize.In order to address the above problem, development has played special process method thereupon.The characteristics of special process method are mainly not rely on mechanical energy, but rely on other energy (as electricity, magnetic, chemistry, light, sound, hot homenergic) to remove metal or nonmetallic materials.
Spark machined is exactly a kind of special process method of mainly utilizing electric energy to come processing metallic, and this processing method begins one's study and progressively is applied in the forties in 20th century and produces.Spark machined is the technology of comparative maturity in the special process, has obtained to use widely in civilian, defence production department and scientific research.But spark machined is compared its difficult processing cutting material and can be processed special and advantages complex parts with traditional machine cut, but has process velocity slow in actual applications again, and the technology rule is difficult grasps limitation such as the easy loss of electrode.For these reasons, the author proposes magnetic field electric spark combined machining method, realizes improving process velocity with it, improves surface quality of workpieces, reduces purposes such as export license.At present, Chinese scholars and engineers and technicians act on separately various energy such as magnetic force, electric spark, ultrasonic waves all has research to the moulding of parts, the mechanism and the technology rule of polishing, and the machining tool of moulding is being used; Machinery electric spark Compound Machining, electric spark ultrasonic ripple Compound Machining, the compound of two kinds of energy such as magnetic field electrochemistry Compound Machining also have research, but magnetic field and electric spark Compound Machining yet there are no report.
This technology mainly by magnetic field, electric spark compound solve in the spark machined speed lowly, problems such as chip removal difficulty, processing instability, the easy loss of electrode in the electric spark small hole processing particularly; By test the microcosmic mechanism problem of some processing is studied, simultaneously, its processing technology is optimized, to reach the purpose that instructs and be applied to production practices.
Three, summary of the invention
Its purpose of electric spark composite machining process in magnetic field of the present invention is, solve above-mentioned problems of the prior art, thereby disclose that a kind of technology is simple, low production cost, working (machining) efficiency height, effectively reduce the technical scheme of the electric spark composite machining process in magnetic field that chip removal is easy in the surface roughness value, edm process of part, processing effect good, be easy to realize.
Electric spark composite machining process in magnetic field of the present invention, it is characterized in that it being a kind of magnetic energy and two kinds of compound technologies of energy of electric energy, be exactly on electric spark machine tool, to add a cover for magnetic device, concrete technology is: I, at first design electromagnet for magnetic device, be added in the electrode two ends of electric spark machine tool, debugging is installed, and the gap, magnetic field is 20 millimeters, and magnetic direction is perpendicular to the processing electric current direction; Magnetic field intensity is a 480-520 milli tesla, and machining tool connects pulse power negative pole, and processing work connects pulse power positive pole, and working fluid is a running water; Secondly working process parameter is optimized, working process parameter is electricity, magnetic parameter; Next test process velocity, measure surface roughness, the eliminating situation of observation machining chips; Determining of II, technological parameter, processing work is the stainless steel and the copper coin of non-magnetic conduction, and processing thickness is the 1-30 millimeter, and the adjustment power tube of electric spark machine tool opens number from 2-4, and pulse width compares test from changing between the 2-4; Servomotor is with 2 or 4 grades, and the spark machined negative pole is the red copper of diameter 0.3-3 millimeter.
The advantage of electric spark composite machining process in magnetic field of the present invention is: solved the speed in the spark machined lowly, the problem of unstable, the electrode easy loss of chip removal difficulty in the electric spark small hole processing, processing particularly.And the technical scheme of this invention has that technology is simple, low production cost, working (machining) efficiency height, effectively reduce the advantage that chip removal is easy in the surface roughness value, edm process of part, processing effect good, be easy to realize.
Four, description of drawings
Fig. 1 is a magnetic field electric spark Compound Machining experimental rig schematic diagram
Label among the figure is: 1 is the electric spark small hole machine, and 2 is tool-electrode, and 3 is processing work, and 4 is the complementary field device
Five, the specific embodiment
Embodiment 1: the corrosion resistant plate of processing 1 millimeters thick on the aperture machine compares test;
Experimental condition: spark machined is workpiece just very, and negative pole is the red copper of 2 millimeters of diameters, and magnetic pole gap is 20 millimeters, and magnetic field intensity is the special electromagnetic fields of 510 millis, and machining medium is a running water.
Test data: separately electrical spark working man-hour, maximum process velocity is 0.91 millimeter of a per minute, and the maximum process velocity in the compound back of magnetic field electric spark is 4.055 millimeters of per minutes, and speed increases to original 4.5 times.
Embodiment 2: the corrosion resistant plate of processing 8.6 millimeters thick on the aperture machine compares test;
Experimental condition: spark machined is workpiece just very, and negative pole is the red copper of 2 millimeters of diameters, and magnetic pole gap is 20 millimeters, and magnetic field intensity is the special electromagnetic fields of 510 millis, and machining medium is a running water.
Test data: separately electrical spark working man-hour, maximum process velocity is 1.6 millimeters of per minutes, and the maximum process velocity in the compound back of magnetic field electric spark is 7.53 millimeters of per minutes, and speed increases to original 4.6 times.
Embodiment 3: the copper plate of processing 2 millimeters thick on the aperture machine compares test;
Experimental condition: spark machined is workpiece just very, and negative pole is the red copper of 2 millimeters of diameters, and magnetic pole gap is 20 millimeters, and magnetic field intensity is the special electromagnetic fields of 510 millis, and machining medium is a running water.
Test data: separately electrical spark working man-hour, maximum process velocity is 7.74 millimeters of per minutes, and the maximum process velocity in the compound back of magnetic field electric spark is 16.45 millimeters of per minutes, and speed increases to original 2.1 times.
Embodiment 4: the corrosion resistant plate of processing 8.6 millimeters thick on the aperture machine compares test;
Experimental condition: spark machined is workpiece just very, and negative pole is the red copper of 1 millimeter of diameter, and magnetic pole gap is 20 millimeters, and magnetic field intensity is the special electromagnetic fields of 510 millis, and machining medium is a running water.
Test data: separately electrical spark working man-hour, maximum process velocity is 4.03 millimeters of per minutes, and the maximum process velocity in the compound back of magnetic field electric spark is 14.54 millimeters of per minutes, and speed increases to original 3.6 times.
Claims (1)
1, a kind of electric spark composite machining process in magnetic field, it is characterized in that it being a kind of magnetic energy and two kinds of compound technologies of energy of electric energy, be exactly on electric spark machine tool, to add a cover for magnetic device, its concrete processing step is: I, at first design electromagnet for magnetic device, be added in the electrode two ends of electric spark machine tool, debugging is installed, the gap, magnetic field is 20 millimeters, magnetic direction is perpendicular to the processing electric current direction, magnetic field intensity is a 480-520 milli tesla, machining tool connects pulse power negative pole, and processing work connects pulse power positive pole, and working fluid is a running water; Secondly working process parameter is optimized, working process parameter is electricity, magnetic parameter; Next test process velocity, measure surface roughness, the eliminating situation of observation machining chips; Determining of II, technological parameter, processing work is the stainless steel and the copper coin of non-magnetic conduction, and processing thickness is the 1-30 millimeter, and the adjustment power tube of electric spark machine tool opens number from 2-4, and pulse width compares test from changing between the 2-4; Servomotor is with 2 or 4 grades, and the spark machined negative pole is the red copper of diameter 0.3-3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100124372A CN100457346C (en) | 2006-03-15 | 2006-03-15 | Electric spark composite machining process in magnetic field |
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| CNB2006100124372A CN100457346C (en) | 2006-03-15 | 2006-03-15 | Electric spark composite machining process in magnetic field |
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| CN1817536A CN1817536A (en) | 2006-08-16 |
| CN100457346C true CN100457346C (en) | 2009-02-04 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211375B (en) * | 2006-12-29 | 2010-08-25 | 英业达股份有限公司 | Part unusual action information generation method |
| CN101288917B (en) * | 2008-05-01 | 2011-06-08 | 太原理工大学 | Permanent magnet field electric spark ostiole compound processing method and device |
| EP2322305A1 (en) * | 2009-11-12 | 2011-05-18 | Siemens Aktiengesellschaft | Electrical discharge cutting with thick wire electrode |
| CN102554376A (en) * | 2011-10-31 | 2012-07-11 | 北京理工大学 | Electrochemical combined machining device using variable auxiliary magnetic field |
| CN102837092A (en) * | 2012-09-25 | 2012-12-26 | 烟台大学 | Rotary-arc coupling discharging milling device |
| CN104107969A (en) * | 2014-06-23 | 2014-10-22 | 太原理工大学 | Electric spark small hole machining technology achieved through dispersing agent working solution and brass/nickel electrode |
| CN106825806B (en) * | 2017-03-29 | 2019-04-30 | 江苏大学 | A kind of device and method in the introduction by magnetic field electrolysis curved hole of electric spark Compound Machining |
| CN106964857A (en) * | 2017-04-27 | 2017-07-21 | 华中科技大学 | A kind of householder method and device for Wire-cut Electrical Discharge Machining |
| CN108788770B (en) * | 2018-06-12 | 2020-04-07 | 苏州强基电磁强化科技有限公司 | Method and device for prolonging machining life of cubic boron nitride blade |
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| JP2000218442A (en) * | 1999-01-28 | 2000-08-08 | Mitsutoyo Corp | Electric discharge machine and method of flushing in electric discharge machining |
| US6242709B1 (en) * | 1998-07-29 | 2001-06-05 | Sumitomo Special Metals Co., Ltd. | Method for manufacturing conductive wafers, method for manufacturing thin-plate sintered compacts, method for manufacturing ceramic substrates for thin-film magnetic head, and method for machining conductive wafers |
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| JP2005271109A (en) * | 2004-03-23 | 2005-10-06 | Mitsutoyo Corp | Electric discharge machine |
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2006
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|---|---|---|---|---|
| US6242709B1 (en) * | 1998-07-29 | 2001-06-05 | Sumitomo Special Metals Co., Ltd. | Method for manufacturing conductive wafers, method for manufacturing thin-plate sintered compacts, method for manufacturing ceramic substrates for thin-film magnetic head, and method for machining conductive wafers |
| JP2000218442A (en) * | 1999-01-28 | 2000-08-08 | Mitsutoyo Corp | Electric discharge machine and method of flushing in electric discharge machining |
| CN1575898A (en) * | 2003-07-24 | 2005-02-09 | 三菱电机株式会社 | Electric discharge machining apparatus |
| JP2005271109A (en) * | 2004-03-23 | 2005-10-06 | Mitsutoyo Corp | Electric discharge machine |
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| 提高磁钢电火花线切割加工速度的实验研究. 董广强，李雪梅，王东.佳木斯大学学报（自然科学版），第18卷第4期. 2000 |
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| 直线电动机驱动电火花成形机主轴头的研制. 孟繁华，赵玉新，高新.电加工与模具，第1期. 2001 |
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Assignee: Yidu Tongxin Precision ForgingCo., Ltd. Assignor: Taiyuan University of Technology Contract record no.: 2010420000161 Denomination of invention: Electric spark composite machining process in magnetic field Granted publication date: 20090204 License type: Exclusive License Open date: 20060816 Record date: 20100916 |
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