CN105220218A - A kind of stainless material fine structure part ionogen-plasma polishing process method - Google Patents
A kind of stainless material fine structure part ionogen-plasma polishing process method Download PDFInfo
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- CN105220218A CN105220218A CN201510595445.3A CN201510595445A CN105220218A CN 105220218 A CN105220218 A CN 105220218A CN 201510595445 A CN201510595445 A CN 201510595445A CN 105220218 A CN105220218 A CN 105220218A
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Abstract
A kind of stainless material fine structure part ionogen-plasma polishing process method, step is as follows: (1) will arrange the process allowance of 0.01 ~ 0.03mm before the polishing of stainless material fine structure part; (2) be arranged on polishing special tooling by stainless material fine structure part, described frock comprises plate, steel disc; Plate is arranged multiple slide slot, each slide slot installs one piece of steel disc, and steel disc can along slide slot horizontal slip, and polished structural part is packed in steel disc lower end, frock clamping surface and structural member surface close contact, prevent abnormal discharge from causing piece surface ablation; (3) in electrolyzer, add the ammonium sulfate polishing fluid that concentration is 2 ~ 4%, polishing fluid temperature controls at 80 ~ 95 DEG C; (4) be placed in step (2) in the polishing fluid described in step (3) by the structural part after frock clamping, logical direct current carries out polishing, time remaining 2-10min.
Description
Technical field
The invention belongs to precision processing technology field, the small burr removal of precision stainless steel structural part after precision sizing, abate piece surface sharp edge can be realized, improve surface quality of workpieces.
Background technology
In precise and ultraprecise machining technical field, after part processing, how the sound small burr removing generation in processing is one of the technological difficulties in this field always.Current Application comparison extensively has high-pressure water jet deburring, heat energy deburring, abrasive flows deburring, jet milled deburring, rotates abrasive material deburring etc., apply above method better for the small burr and seamed edge abate effect removing piece surface, but for having the accurate die cavity class part of complex construction, small burr generally, can not effectively thoroughly be removed totally by its inner deep and long hole and cross bore position burr effect.
The design and production of space flight servo control mechanism core parts servo-valve, product has the feature of dimensional precision high (micron order), internal structure complexity, inside parts deep and long hole and cross bore, blind hole are more, the small burr produced after using above method to be difficult to remove part processing thoroughly.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provides a kind of stainless material fine structure part ionogen-plasma polishing process method.
Technical solution of the present invention is: a kind of stainless material fine structure part ionogen-plasma polishing process method, and step is as follows:
(1) will the process allowance of 0.01 ~ 0.03mm be set before the polishing of stainless material fine structure part;
(2) be arranged on polishing special tooling by stainless material fine structure part, described frock comprises plate, steel disc; Plate is arranged multiple slide slot, each slide slot installs one piece of steel disc, and steel disc can along slide slot horizontal slip, and polished structural part is packed in steel disc lower end, frock clamping surface and structural member surface close contact, prevent abnormal discharge from causing piece surface ablation;
(3) in electrolyzer, add the ammonium sulfate polishing fluid that concentration is 2 ~ 4%, polishing fluid temperature controls at 80 ~ 95 DEG C;
(4) be placed in step (2) in the polishing fluid described in step (3) by the structural part after frock clamping, logical direct current carries out polishing, time remaining 2-10min.
When fine structure part is chamber class part, the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2%; Polish temperature 90 ~ 95 DEG C; Polishing time 4 ~ 8min.
When fine structure part is rotating shaft cover parts, the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2 ~ 3%; Polish temperature 80 ~ 90 DEG C; Polishing time 3 ~ 5min.
The present invention compared with prior art beneficial effect is:
The processing method of ionogen-plasma polishing is mainly used in improving the smooth finish to the not high process conditions outline of dimension precision requirement at civil area.The processing method of ionogen-plasma polishing is applied to the cleaning cleaning of the small burr removal after to stainless steel structure part precision sizing and surperficial seamed edge abate and part by the present invention first in precision sizing field, find out a set of working process parameter and the technical process that are applicable to the small burr removal of fine structure part and surface finish.The present invention applies this processing parameter and technical process, not only can solve above-mentioned part processing after there is small burr and face seal position is of poor quality, cleaning cleaning difficulty etc. problem, can also realize the accurate control to accessory size, precision can reach micron order.
Accompanying drawing explanation
Fig. 1 is ionogen-plasma polishing principles schematic diagram;
Fig. 2 is inventive shell polishing special tooling schematic diagram;
Fig. 3 is valve pocket polishing special tooling schematic diagram of the present invention;
Fig. 4 is spool polishing special tooling schematic diagram of the present invention.
Embodiment
The principle of ionogen plasma polishing is sunk in the polishing fluid of neutral salt preparation of lower concentration as anode by polished metal works, and polishing fluid negative electrode is connected.In the course of the work, the water vapor that the instantaneous short circuit of the gas that polishing fluid electrolysis produces and workpiece and polishing fluid contact position is evaporated can form the plasma body gas-bearing formation that is surrounded workpiece, liquid-vaqor interface exist polishing fluid electrolysis produce electronics under the effect of electric field through gas-bearing formation high-speed punching to workpiece surface, workpiece surface is made to obtain a large amount of energy and melt, thus the Advantageous materials realizing microscopic protrusions position is removed, reach the effect of polishing, its process as shown in Figure 1.
The present invention is in precision sizing field, first the processing method of ionogen-plasma polishing is applied to the cleaning cleaning of the small burr removal after to stainless steel structure part precision sizing and surperficial seamed edge abate and part, after utilizing the inventive method to process, can ensures that part is without loss of significance at the small burr of removal part privileged site simultaneously.The parameter affecting ionogen-plasma polishing effect mainly contains polishing fluid formula, polishing fluid temperature, polishing fluid concentration and polishing time.The present invention by a large amount of theoretical analysises in conjunction with numerous experiments, provide to precision stainless steel structural part carry out polishing deburring and removing surface cleaning optimal procedure parameters be:
Polishing fluid is filled a prescription: ammonium sulfate
Polishing fluid temperature: 80 ~ 95 DEG C
Polishing fluid concentration: 2 ~ 4%
Polishing time: 2 ~ 10min.
When the structural part of processing stainless steel material, electropolishing operation is added in former technical process, part process redundancy is adjusted simultaneously, reserving electropolishing complete processing surplus (utilizes the removal speed of above-mentioned processing parameter to stainless material to be about 0.002mm/min, therefore the process allowance of 0.01 ~ 0.03mm is set before electropolishing processing), form the technical process of a set of adaptation ionogen-plasma polishing, while effectively can removing the small burr that part produces in mechanical workout like this, ensure part processing precision.
The step being specifically related to polishing part is as follows:
(1) will the process allowance of 0.01 ~ 0.03mm be set before the polishing of stainless material fine structure part;
(2) be arranged on polishing special tooling by stainless material fine structure part, described frock comprises plate 1, steel disc 2; Plate 1 arranges multiple slide slot, each slide slot installs one piece of steel disc 2, and steel disc can along slide slot horizontal slip, and polished structural part is packed in steel disc lower end, frock clamping surface and structural member surface close contact, prevent abnormal discharge from causing piece surface ablation;
(3) in electrolyzer, add the ammonium sulfate polishing fluid that concentration is 2 ~ 4%, polishing fluid temperature controls at 80 ~ 95 DEG C;
(4) be placed in step (2) in the polishing fluid described in step (3) by the structural part after frock clamping, logical direct current carries out polishing, time remaining 2-10min.
For accurate die cavity class part, the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2%; Polish temperature 90 ~ 95 DEG C; Polishing time 4 ~ 8min.
For rotating shaft cover parts (spool, valve pocket), the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2 ~ 3%; Polish temperature 80 ~ 90 DEG C; Polishing time 3 ~ 5min.
Embodiment 1
For space flight servo control mechanism core parts servo valve housing, existing processing general technology flow process is: thermal treatment (modified) → milling (shape processing) → thermal treatment (quenching) → top gem of a girdle-pendant (semi-finishing hole) → plain grinding (precision-machined parts profile) → lappingout (Finish Machining Bore) → cleaning (removal dirt) → always examine.
Adding the overall processing flow process after glossing of the present invention is: thermal treatment (modified) → milling (shape processing) → thermal treatment (the quenching) → top gem of a girdle-pendant (semi-finishing hole, for process allowance 0.01 ~ 0.03mm is reserved in ionogen-plasma polishing) → plain grinding (precision-machined parts profile, for process allowance 0.01 ~ 0.03mm is reserved in ionogen-plasma polishing) → ionogen-plasma polishing (application specific glossing parameter, mating parts special hoisting fixture, remove part and pass through the small burr in position mutually, improve piece surface sealing position quality, abate part sharp edge) → lappingout (Finish Machining Bore) → cleaning (removal dirt) → always examine.
As shown in Figure 2, polished structure 7 (housing) is installed fixing by adjacent two pieces of steel discs 2, fixes especially by wing nut 5 and bolt 6, and after adjusting steel disc distance, steel disc 2 is fixed by nut 3 bolt 4.
For shell-pieces, the state of the art before carrying out ionogen-plasma polishing is: each surface and main aperture leave 0.01mm process allowance, main aperture cylindricity < 0.005mm, and glossing parameter is: polishing fluid concentration 2%; Polish temperature 90 DEG C; Polishing time 6min.Survey after polishing: piece surface and endoporus evenly remove about amount 0.01mm, endoporus cylindricity < 0.005mm, surperficial seamed edge is removed thoroughly by each cross bore aperture place burr in abate R ≈ 0.1, main aperture.
Embodiment 2
For the valve pocket of space flight servo control mechanism core parts servo-valve, be arranged on schematic diagram in frock as shown in Figure 3, polished structure 7 (valve pocket) is arranged on Back Word type block 8 by screw 9, to ensure fixturing surface and structural member surface close contact, Back Word type block 8 is arranged on the open holes of steel disc 2 lower end by bolt 6.
For valve bush part, state of the art before carrying out ionogen-plasma polishing is: cylindrical and main aperture leave 0.01mm process allowance, main aperture cylindricity < 0.005mm, cylindrical cylindricity < 0.005mm, glossing parameter is: polishing fluid concentration 2%; Polish temperature 85 DEG C; Survey after polishing time 4min. polishing: piece surface and endoporus evenly remove about amount 0.01mm, endoporus cylindricity < 0.005mm, cylindrical closure gasket groove notch is removed thoroughly by each cross bore aperture place burr in even abate R ≈ 0.1, main aperture.
Embodiment 3
For the spool of space flight servo control mechanism core parts servo-valve, be arranged on schematic diagram in frock as shown in Figure 4, polished structure 7 (spool) is placed in the V-type groove of V-block 11, outside surface places pressing plate 10, and pressing plate 10, V-block 11 is fixed on the lower end of steel disc 2 by screw 9.
For spool parts, the state of the art before carrying out ionogen-plasma polishing is: cylindrical leaves 0.01mm process allowance, cylindrical cylindricity < 0.005mm, and glossing parameter is: polishing fluid concentration 2%; Polish temperature 80 DEG C; Polishing time 5min, surveys after polishing: part outline is by even abate R ≈ 0.1, and the small burr of outside surface is thoroughly removed.
Obtain drawing a conclusion: the material removal rate of ionogen-plasma polishing is about 0.002mm/min after to part polishing fore-and-aft survey, on the impact of part form and position tolerance (as circularity, cylindricity) nothing before and after polishing, effectively can remove for part outside surface, the small burr in aperture place of system, internal chiasma hole, Part Surface Roughness can be improved a grade through polishing in addition.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (3)
1. stainless material fine structure part ionogen-plasma polishing process method, is characterized in that step is as follows:
(1) will the process allowance of 0.01 ~ 0.03mm be set before the polishing of stainless material fine structure part;
(2) be arranged on polishing special tooling by stainless material fine structure part, described frock comprises plate, steel disc; Plate is arranged multiple slide slot, each slide slot installs one piece of steel disc, and steel disc can along slide slot horizontal slip, and polished structural part is packed in steel disc lower end, frock clamping surface and structural member surface close contact, prevent abnormal discharge from causing piece surface ablation;
(3) in electrolyzer, add the ammonium sulfate polishing fluid that concentration is 2 ~ 4%, polishing fluid temperature controls at 80 ~ 95 DEG C;
(4) be placed in step (2) in the polishing fluid described in step (3) by the structural part after frock clamping, logical direct current carries out polishing, time remaining 2-10min.
2. a kind of stainless material fine structure part ionogen-plasma polishing process method according to claim 1, is characterized in that: when fine structure part is chamber class part, the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2%; Polish temperature 90 ~ 95 DEG C; Polishing time 4 ~ 8min.
3. a kind of stainless material fine structure part ionogen-plasma polishing process method according to claim 1, it is characterized in that: when fine structure part is rotating shaft cover parts, the optimal procedure parameters of ionogen-plasma polishing is: polishing fluid concentration 2 ~ 3%; Polish temperature 80 ~ 90 DEG C; Polishing time 3 ~ 5min.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513758A (en) * | 2017-09-30 | 2017-12-26 | 哈工大机器人（合肥）国际创新研究院 | Liquid phase plasma nanometer burnishing liquid, its preparation method and the application of one Albatra metal |
| CN109594120A (en) * | 2018-11-16 | 2019-04-09 | 首都航天机械有限公司 | A kind of cylindrical shape stainless steel thin-wall bellows electropolishing method |
| CN110076529A (en) * | 2019-05-15 | 2019-08-02 | 山西航天清华装备有限责任公司 | A kind of weak rigid radial porous system precision valve pocket stable state processing method |
| CN110129872A (en) * | 2019-05-23 | 2019-08-16 | 广州市雷傲科技有限公司 | Polishing fluid is used in a kind of polishing of cobalt chrome metal electrolyte plasma |
| CN112809456A (en) * | 2021-01-13 | 2021-05-18 | 南京尚吉增材制造研究院有限公司 | Micro-nano bubble enhanced plasma polishing method |
| CN113333885A (en) * | 2021-05-12 | 2021-09-03 | 兰州空间技术物理研究所 | Deburring device and method for molybdenum grid of ion thruster |
| RU2765553C1 (en) * | 2020-11-18 | 2022-02-01 | Публичное Акционерное Общество "Одк-Сатурн" | Electrolyte for electrolyte plasma polishing of parts made of heat-resistant alloys |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513758A (en) * | 2017-09-30 | 2017-12-26 | 哈工大机器人（合肥）国际创新研究院 | Liquid phase plasma nanometer burnishing liquid, its preparation method and the application of one Albatra metal |
| CN107513758B (en) * | 2017-09-30 | 2019-04-16 | 哈工大机器人（合肥）国际创新研究院 | Liquid phase plasma nanometer burnishing liquid, preparation method and the application of one Albatra metal |
| CN109594120A (en) * | 2018-11-16 | 2019-04-09 | 首都航天机械有限公司 | A kind of cylindrical shape stainless steel thin-wall bellows electropolishing method |
| CN109594120B (en) * | 2018-11-16 | 2020-12-11 | 首都航天机械有限公司 | Cylindrical stainless steel thin-wall corrugated pipe electropolishing method |
| CN110076529A (en) * | 2019-05-15 | 2019-08-02 | 山西航天清华装备有限责任公司 | A kind of weak rigid radial porous system precision valve pocket stable state processing method |
| CN110129872A (en) * | 2019-05-23 | 2019-08-16 | 广州市雷傲科技有限公司 | Polishing fluid is used in a kind of polishing of cobalt chrome metal electrolyte plasma |
| CN110129872B (en) * | 2019-05-23 | 2020-08-21 | 广州市雷傲科技有限公司 | Polishing solution for cobalt-chromium metal electrolyte plasma polishing |
| RU2765553C1 (en) * | 2020-11-18 | 2022-02-01 | Публичное Акционерное Общество "Одк-Сатурн" | Electrolyte for electrolyte plasma polishing of parts made of heat-resistant alloys |
| CN112809456A (en) * | 2021-01-13 | 2021-05-18 | 南京尚吉增材制造研究院有限公司 | Micro-nano bubble enhanced plasma polishing method |
| WO2022151738A1 (en) * | 2021-01-13 | 2022-07-21 | 南京尚吉增材制造研究院有限公司 | Micro-nano bubble enhanced plasma polishing method |
| CN113333885A (en) * | 2021-05-12 | 2021-09-03 | 兰州空间技术物理研究所 | Deburring device and method for molybdenum grid of ion thruster |
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