CN102873383A - Processing method of nonmetal special-shaped rudder sheet and clamp for processing - Google Patents
Processing method of nonmetal special-shaped rudder sheet and clamp for processing Download PDFInfo
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- CN102873383A CN102873383A CN2012103639357A CN201210363935A CN102873383A CN 102873383 A CN102873383 A CN 102873383A CN 2012103639357 A CN2012103639357 A CN 2012103639357A CN 201210363935 A CN201210363935 A CN 201210363935A CN 102873383 A CN102873383 A CN 102873383A
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Abstract
The invention discloses a processing method of a nonmetal special-shaped rudder sheet and a clamp for processing. The processing method comprises the following steps: 1) designing a nonmetal rudder sheet flat blank according to a product maximum profile dimension; 2) vertically clamping the nonmetal rudder sheet flat blank, symmetrically grinding the two reference surfaces of the nonmetal rudder sheet flat blank; 3) performing rough milling of the profile of the nonmetal rudder sheet flat blank, processing a process chuck for subsequent clamping at a position of a rudderpost; 4) vertically clamping the process chuck, aligning the central planes of the two reference surfaces, performing semi-finish milling of the reference surfaces of the nonmetal rudder sheet flat blank, then performing finish milling one surface to obtain the designed dimension so as to form the rudder sheet; 5) vertically clamping the rudder sheet, performing semi-finish milling of the process chuck to obtain a rudderpost shape; 6) performing finish milling of the rudderpost to obtain the designed dimension so as to finish the processing of the nonmetal special-shaped rudder sheet. With the processing method of the nonmetal special-shaped rudder sheet and the clamp for processing, the processing precision and the form and location tolerance of the nonmetal special-shaped rudder sheet can be effectively ensured.
Description
Technical field
The invention belongs to the nonmetal rudder chip technology of motor driven bullet field in the missile weapon system, specifically refer to a kind of processing method and fixture for processing of nonmetal special-shaped rudder sheet.
Background technology
The motor driven bullet is at the missile weapon system bullet of terminal phase by preset program change of flight trajectory.The motor driven bullet reenters when flight, its control system be the air force that produced by airvane deflection as control, effectively control guided missile and guarantee good attitude flight in the endoatmosphere.Airvane is made of rudder sheet, adapter ring and connector thereof, and the rudder sheet adopts with adapter ring and is threaded.Long for the armament systems maneuvering flight time, to ablation and the high characteristics of thermal structure requirement of strength of rudder, the wing, nonmetal rudder sheet is used increasingly general in armament systems.The structure of common nonmetal rudder sheet is shown in attached Fig. 1 and 2, consisted of by rudder sheet 1 and the rudderpost 2 that is positioned at its lower edge face, because rudder sheet 1 need bear larger thermal shock power in the course of the work, require rudder sheet 1 and control cabinet housing solid and reliable after the assembling, rudder sheet 1 median plane and body symmetry are not more than 0.1mm, the rudderpost 2 that is positioned at rudder sheet 1 lower edge plane is interference fit with the control cabinet housing, and rudder sheet 1 dimensional tolerance only is 6 grades.Because rudder sheet 1 external form is pneumatic profile, therefore very high to the requirement of rudder sheet 1 overall dimensions precision and surface quality again.Because rudderpost 2 structures are little, precision is high, the rudder face of rudder sheet 1 is irregular special-shaped profile, the technological datum face can't be determined in the process, therefore very high to the requirement of rudder slice processing method, and the difficult point of nonmetal special-shaped rudder flake products processing is the control of overall dimensions, rudder face surface quality and rudder face and rudderpost symmetry precision.Nonmetallic materials rudder sheet hardness is about Mohs' hardness 9.5, and cutting ability is poor, and the cost of charp tool is high.Meet the demands in order to ensure Product Precision, not only best technological process and parameter will sought aspect the product processing, need simultaneously to manufacture accurately profile location special tooling of a cover precision, otherwise cause easily the inaccurate and rudderpost in location and rudder face symmetry defective.
The designing requirement dimensional discrepancy of rudderpost is not more than ± 0.0055mm, the Central Symmetry degree of the relative rudderpost of two rudder faces is not more than 0.1mm, the upper limb of rudder sheet, lower edge size tolerance requirements all are not more than 0.1mm, and the lower edge angular deviation is not more than ± and 3 ', surface roughness requires to be Ra3.2.At present, because of nonmetal special-shaped rudder chip architecture complexity, raw material hardness is high, the design of part poor rigidity, add man-hour with rudder sheet center basal plane horizontal positioned, carry out Roughing and fine machining with tungsten carbide tipped tool and hard alloy cutter respectively, last pincers worker repair rudderpost, the concrete technology journey is: profile → pincers worker repair rudderpost under profile → fine finishining in profile → fine finishining under profile → roughing in the blank preparation → roughing.The problem that this technique exists is that product rudderpost size can't guarantee after the processing, the rudderpost non-interchangeability of pincers worker repair, and surface roughness is poor, and product weight difference is large, and processing cost is high, and efficient is low.
Summary of the invention
Purpose of the present invention will provide a kind of nonmetal special-shaped rudder slice processing method exactly, and the method can effectively guarantee machining accuracy and the form and position tolerance of nonmetal special-shaped rudder sheet, and simultaneously the present invention also provides a kind of nonmetal special-shaped rudder sheet fixture for processing,
For achieving the above object, the processing method of the nonmetal special-shaped rudder sheet that the present invention is designed may further comprise the steps:
1) design nonmetal rudder sheet plate blank according to the maximum appearance and size of product, and single face stays allowance 5 ~ 10mm;
2) the nonmetal rudder sheet of vertical clamping plate blank, two datum levels of the nonmetal rudder sheet of symmetrical plain grinding plate blank guarantee that the depth of parallelism of two datum levels and flatness error all in 0.06mm, stay the surplus 1 ~ 3mm of single-sided process;
3) the nonmetal rudder sheet of rough milling plate blank external form, rudder face stays single-sided process surplus 2 ~ 3mm, and processes the technique chuck of follow-up clamping at position, rudderpost place, the technique chuck to the symmetry error of two reference surface centers in 0.04mm;
4) vertical clamping technique chuck, centering two reference surface center planes, the nonmetal rudder sheet of half finish-milling plate blank two datum levels stay single-sided process surplus 0.2 ~ 0.3mm, and then the finish-milling single face forms the rudder sheet to design size;
5) vertical clamping rudder sheet, half finish-milling technique chuck stays single-sided process surplus 0.1 ~ 0.2mm to the rudderpost shape;
6) finish-milling processing rudderpost, cutting depth is controlled at 0.1 ~ 0.15mm, to design size, can finish the processing of nonmetal special-shaped rudder sheet.
Further, in the said step 4), during the nonmetal rudder sheet of half finish-milling plate blank two datum level, adopt diamond cutter, process with the contour processing method, the semifinishing cutting speed is controlled to be 120 ~ 150m/min, cutting depth is controlled to be 0.2 ~ 0.4mm, and feed speed is controlled to be 0.3 ~ 0.45mm/z; During the finish-milling rudder face, adopt diamond cutter curved surface fine finishining and tangential feed, the fine finishining cutting speed is controlled to be 200 ~ 220m/min, and cutting depth is controlled to be 0.2 ~ 0.3mm, and feed speed is controlled to be 0.2 ~ 0.35mm/z.
Further, in the said step 5), half finish-milling technique chuck adopts rudder face profile location, clamping rudder sheet during to the rudderpost shape, centering technique chuck, and correct error is controlled to be in the 0.03mm.
Further, in the said step 6), during finish-milling processing rudderpost, centering rudderpost, correct error are in 0.02mm, and accurately machined cutting speed is controlled to be 200 ~ 220m/min, and cutting depth is controlled to be 0.1 ~ 0.15mm, and feed speed is controlled to be 0.1 ~ 0.15mm/z.
Nonmetal special-shaped rudder sheet fixture for processing of the present invention, clamping rudder sheet when being used for the processing rudderpost, it comprises the precision vice of two profile backing plates and the described profile backing plate of clamping, described two profile backing plate inboards are provided with the rudder face groove suitable with the both sides rudder face difference of rudder sheet to be processed, and described two profile backing plate upper surfaces are provided with for two the clamping journal stirrups of restriction rudder sheet in the anchor clamps position.During anchor clamps work, the rudder face groove of two profile backing plate inboards forms similar inverted cone surface holding tank, can make the rudder sheet that the upwards trend of motion is arranged, and two place's journal stirrups can prevent that the rudder sheet from moving up.
The present invention adopts the vertical machining centre rudder face, is conducive to improve machining accuracy and working (machining) efficiency.Mill rudder face and divide semifinishing and fine finishining, effectively to guarantee parts size precision and surface roughness.Processing is preferably selected nonmetal special-shaped rudder sheet fixture for processing of the present invention that the rudder sheet is carried out clamping and is fixed during rudderpost, has both guaranteed during clamping that part was convenient to clamping, has enough rigidity, symmetry basis displacement error can be dwindled again.
Facts have proved that adopt the processing method of the nonmetal special-shaped rudder sheet of the present invention, machining accuracy is high, satisfies the product design required precision fully.Facts have proved, adopt method and apparatus of the present invention actual add man-hour controlled rudderpost deviation processed ± 0.004mm with interior, the relative rudderpost Central Symmetry of two rudder faces degree error 0.08mm take interior, rudder face lower edge angular deviation actual as ± 3 ', the upper limb dimensional discrepancy take interior, surface roughness as Ra3.2, all is higher than the standard of designing requirement at ± 0.03mm.Place processing method relatively with the rudder face central horizontal, improve about 8 times of working (machining) efficiency, and constant product quality, the rudderpost consistent size, product flies to have a try by ground experiment repeatedly and many batches smoothly and tests.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of rudder sheet.
Fig. 2 is the plan structure schematic diagram of rudder sheet.
Fig. 3 is the structural representation of technique chuck on the nonmetal rudder sheet plate blank behind the rough milling.
Fig. 4 is the structural representation of the profile backing plate of nonmetal special-shaped rudder sheet fixture for processing.
Fig. 5 is the use status architecture schematic diagram of nonmetal special-shaped rudder sheet fixture for processing.
Fig. 6 is the Z-Z sectional structure schematic diagram among Fig. 5.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Rudder chip architecture illustrated in figures 1 and 2 describes in detail in background technology, does not do at this and gives unnecessary details.
Fig. 4 and nonmetal special-shaped rudder sheet fixture for processing shown in Figure 5, clamping rudder sheet when being used for the processing rudderpost, it comprises two profile backing plates 4.1,4.2 and the described profile backing plate 4.1 of clamping, 4.2 precision vice 5, two profile backing plates 4.1,4.2 inboards are provided with the both sides rudder face of rudder sheet 1 to be processed and suitable 6, two profile backing plates 4.1 of rudder face groove, 4.2 upper surfaces are provided with for two the clamping journal stirrups 7.1,7.2 of restriction rudder sheet 1 in the anchor clamps position respectively.In anchor clamps when work,, the rudder face groove 6 of two profile backing plates 4.1,4.2 inboards forms similar inverted cone surface holding tank, can make rudder sheet 1 that the upwards trend of motion is arranged, and two place's journal stirrups 7.1,7.2 can prevent that rudder sheet 1 from moving up.
For certain C/SiC ceramic material abnormity rudder sheet, rudderpost is of a size of 16mm * 21mm, the greatly enhancing most * the wide 198mm of being of a size of * 95mm of rudder sheet, and the maximum ga(u)ge of rudder sheet is that 17.5mm, minimum thickness are 9mm, processing method may further comprise the steps:
1) according to the maximum appearance and size design of product C/SiC pottery rudder sheet plate material, stays single-sided process surplus 5 ~ 10mm;
2) vertical clamping rudder sheet blank, two datum levels of symmetrical plain grinding rudder sheet blank guarantee the depth of parallelism and flatness error in 0.06mm, thickness stays single-sided process surplus 1 ~ 3mm;
3) clamp rudder sheet blank, rough milling rudder sheet blank external form is removed the most of allowance of rudder sheet blank, and rudder face stays single-sided process surplus 2 ~ 3mm, and processing the technique chuck 3 of follow-up clamping at rudderpost 2 positions, the symmetry error of 3 pairs of two reference surface centers of technique chuck is at 0.04mm;
4) with precision vice vertical clamping technique chuck 3, centering two reference surface center planes, adopt φ 16R3 diamond roughing tool contour processing method half finish-milling rudder face, cutting speed 150m/min, cutting depth 0.4mm, feed speed 0.42mm/z stays single-sided process surplus 0.2 ~ 0.3mm after the processing; Adopt again φ 16R3 diamond finishing tool curved surface fine finishining and tangential feed finish-milling rudder face, cutting speed 210m/min, cutting depth 0.25mm, feed speed 0.30mm/z, guarantee rudder face dimensional requirement and surface roughness requirement, namely finish the processing of rudder sheet 1;
5) adopt nonmetal special-shaped rudder sheet fixture for processing shown in Figure 5 by mode clamping rudder sheet 1 shown in Figure 6, stretching rudder sheet 1 lower edge plane, centering technique chuck 3 centers, correct error is in 0.03mm, to the rudderpost shape, half finish-milling stays follow-up finish-milling single-sided process surplus 0.1 ~ 0.2mm with technique chuck 3 half finish-millings;
6) finish-milling processing rudderpost 2, centering rudderpost 2 centers, correct error is in 0.02 mm, check and correction rudder face two profile centers adopt full-time course to count accurate rudderpost 2 sizes that detect of outside micrometer, adopt φ 8R2 diamond cutter fine finishining rudderpost 2, cutting speed is 220m/min, cutting depth 0.1mm, feed speed 0.15mm/z can obtain C/SiC ceramic material airvane abnormity rudder sheet.
With said method to the processing of C/SiC ceramic material airvane abnormity rudder sheet after, Product Precision is higher, satisfies the product design required precision fully, the relative rudderpost Central Symmetry of two rudder faces degree is 0.1mm; Rudderpost is of a size of 16 ± 0.005mm; Upper limb is of a size of 9 ± 0.05mm; The angular deviation of rudder face lower edge is not more than ± and 3 '; Surface roughness is Ra3.2.In engine ablation and ground experiment, achieve complete success.
For certain SiC ceramic material abnormity rudder sheet, rudderpost is of a size of φ 18 mm, and the rudder sheet greatly enhances * the wide 260mm of being of a size of * 70mm most, and rudder sheet maximum ga(u)ge is 12mm, and minimum thickness is 2mm, and the machining control process is as follows:
1) according to the maximum appearance and size design of product SiC pottery rudder sheet plate material, stays single-sided process surplus 5 ~ 10mm;
2) vertical clamping SiC pottery rudder sheet blank, two datum levels of symmetrical plain grinding SiC pottery rudder sheet blank guarantee the depth of parallelism, flatness error of two datum levels in 0.06mm, thickness stays single-sided process surplus 1 ~ 3mm;
3) clamp SiC pottery rudder sheet blank plate streaking and mill processing rudder sheet external form, remove the most of allowance of rudder sheet blank, rudder face stays single-sided process surplus 2 ~ 3mm, and processing the technique chuck 3 of follow-up clamping at rudderpost 2 positions, the symmetry error of 3 pairs of two reference surface centers of technique chuck is in 0.04mm;
4) with precision vice vertical clamping technique chuck 3 two sides, centering two reference surface center planes, adopt φ 16R3 diamond roughing tool contour processing method half finish-milling rudder face, cutting speed 130m/min, cutting depth 0.3mm, feed speed 0.3mm/z stays single-sided process surplus 0.2 ~ 0.3mm after the processing; Adopt again φ 16R3 diamond finishing tool curved surface fine finishining and tangential feed finish-milling rudder face, cutting speed 200m/min, cutting depth 0.2mm, feed speed 0.35mm/z guarantees rudder face dimensional requirement and surface roughness requirement, namely finishes the processing of rudder sheet 1; ,
5) adopt nonmetal special-shaped rudder sheet fixture for processing shown in Figure 5 by mode clamping rudder sheet 1 shown in Figure 6, stretching rudder sheet 1 lower edge plane, centering technique chuck 3 centers, correct error is in 0.03mm, to the rudderpost shape, half finish-milling stays follow-up finish-milling single-sided process surplus 0.1 ~ 0.2mm with technique chuck half finish-milling;
6) finish-milling processing rudderpost 2, centering rudderpost 2 centers, correct error is in 0.02mm, check and correction rudder face two profile centers adopt full-time course to count accurate rudderpost 2 sizes that detect of outside micrometer, adopt φ 8R2 diamond cutter fine finishining rudderpost 2, cutting speed is 200m/min, cutting depth 0.15mm, feed speed 0.1mm/z can obtain SiC ceramic material airvane abnormity rudder sheet.
With said method to the processing of SiC ceramic material abnormity rudder sheet after, Product Precision is higher, satisfies the product design required precision fully, the relative rudderpost Central Symmetry of two rudder faces degree is 0.1mm; Rudderpost is of a size of φ 18 ± 0.004mm; The angular deviation of rudder face lower edge is not more than ± and 3 ', upper limb is of a size of 2 ± 0.05mm; Surface roughness is Ra3.2.In engine ablation and ground experiment, achieve complete success.
For certain SiC ceramic material abnormity rudder sheet, rudderpost is of a size of φ 17 mm, and the rudder sheet greatly enhances * the wide 230mm of being of a size of * 80mm most, and rudder sheet maximum ga(u)ge is 15mm, and minimum thickness is 4mm, and the machining control process is as follows:
1) according to the maximum appearance and size design of product SiC pottery rudder sheet plate material, stays single-sided process surplus 5 ~ 10mm;
2) vertical clamping SiC pottery rudder sheet blank, two datum levels of symmetrical plain grinding SiC pottery rudder sheet blank guarantee the depth of parallelism, flatness error of two datum levels in 0.06mm, thickness stays single-sided process surplus 1 ~ 3mm;
3) clamp SiC pottery rudder sheet blank plate streaking and mill processing rudder sheet external form, remove the most of allowance of rudder sheet blank, rudder face stays single-sided process surplus 2 ~ 3mm, and processing the technique chuck 3 of follow-up clamping at rudderpost 2 positions, the symmetry error of 3 pairs of two reference surface centers of technique chuck is in 0.04mm;
4) with precision vice vertical clamping technique chuck 3 two sides, centering two reference surface center planes, adopt φ 16R3 diamond roughing tool contour processing method half finish-milling rudder face, cutting speed 120m/min, cutting depth 0.2mm, feed speed 0.45mm/z stays single-sided process surplus 0.2 ~ 0.3mm after the processing; Adopt again φ 16R3 diamond finishing tool curved surface fine finishining and tangential feed finish-milling rudder face, cutting speed 220m/min, cutting depth 0.3mm, feed speed 0.2mm/z guarantees rudder face dimensional requirement and surface roughness requirement, namely finishes the processing of rudder sheet 1;
5) adopt nonmetal special-shaped rudder sheet fixture for processing shown in Figure 5 by mode clamping rudder sheet 1 shown in Figure 6, stretching rudder sheet 1 lower edge plane, centering technique chuck 3 centers, correct error is in 0.03mm, to the rudderpost shape, half finish-milling stays follow-up finish-milling single-sided process surplus 0.1 ~ 0.2mm with technique chuck half finish-milling;
6) finish-milling processing rudderpost 2, centering rudderpost 2 centers, correct error is in 0.02mm, check and correction rudder face two profile centers adopt full-time course to count accurate rudderpost 2 sizes that detect of outside micrometer, adopt φ 8R2 diamond cutter fine finishining rudderpost 2, cutting speed is 210m/min, cutting depth 0.15mm, feed speed 0.12mm/z can obtain SiC ceramic material airvane abnormity rudder sheet.
With said method to the processing of SiC ceramic material abnormity rudder sheet after, Product Precision is higher, satisfies the product design required precision fully, the relative rudderpost Central Symmetry of two rudder faces degree is 0.1mm; Rudderpost is of a size of φ 17 ± 0.003mm; The angular deviation of rudder face lower edge is not more than ± and 3 ', upper limb is of a size of 4 ± 0.02mm; Surface roughness is Ra3.2.In engine ablation and ground experiment, achieve complete success.
Claims (5)
1. the processing method of a nonmetal special-shaped rudder sheet is characterized in that, it may further comprise the steps:
1) design nonmetal rudder sheet plate blank according to the maximum appearance and size of product, and single face stays allowance 5 ~ 10mm;
2) the nonmetal rudder sheet of vertical clamping plate blank, two datum levels of the nonmetal rudder sheet of symmetrical plain grinding plate blank guarantee that the depth of parallelism of two datum levels and flatness error all in 0.06mm, stay the surplus 1 ~ 3mm of single-sided process;
3) the nonmetal rudder sheet of rough milling plate blank external form, rudder face stays single-sided process surplus 2 ~ 3mm, and process the technique chuck (3) of follow-up clamping at rudderpost (2) position, place, technique chuck (3) to the symmetry error of two reference surface centers in 0.04mm;
4) vertical clamping technique chuck (3), centering two reference surface center planes, the nonmetal rudder sheet of half finish-milling plate blank two datum levels stay single-sided process surplus 0.2 ~ 0.3mm, and then the finish-milling single face forms rudder sheet (1) to design size;
5) vertical clamping rudder sheet (1), half finish-milling technique chuck (3) stays single-sided process surplus 0.1 ~ 0.2mm to rudderpost (2) shape;
6) finish-milling processing rudderpost (2), cutting depth is controlled to be 0.1 ~ 0.15mm, to design size, can finish the processing of nonmetal special-shaped rudder sheet.
2. the processing method of nonmetal special-shaped rudder sheet according to claim 1, it is characterized in that: in the said step 4), during the nonmetal rudder sheet of half finish-milling plate blank two datum level, adopt diamond cutter, process with the contour processing method, the semifinishing cutting speed is controlled to be 120 ~ 150m/min, cutting depth is controlled to be 0.2 ~ 0.4mm, and feed speed is controlled to be 0.3 ~ 0.45mm/z; During the finish-milling rudder face, adopt diamond cutter curved surface fine finishining and tangential feed, the fine finishining cutting speed is controlled to be 200 ~ 220m/min, and cutting depth is controlled to be 0.2 ~ 0.3mm, and feed speed is controlled to be 0.2 ~ 0.35mm/z.
3. the processing method of nonmetal special-shaped rudder sheet according to claim 1 and 2, it is characterized in that: in the said step 5), half finish-milling technique chuck (3) is during to rudderpost (2) shape, adopt rudder face profile location, clamping rudder sheet (1), centering technique chuck (3), correct error is controlled in the 0.03mm.
4. the processing method of nonmetal special-shaped rudder sheet according to claim 1 and 2, it is characterized in that: in the said step 6), during finish-milling processing rudderpost (2), centering rudderpost (2), correct error is in 0.02mm, accurately machined cutting speed is controlled to be 200 ~ 220m/min, and feed speed is controlled to be 0.1 ~ 0.15mm/z.
5. nonmetal special-shaped rudder sheet fixture for processing, clamping rudder sheet when being used for the processing rudderpost, it is characterized in that, it comprises the precision vice (5) of two profile backing plates (4.1,4.2) and the described profile backing plate of clamping (4.1,4.2), described two profile backing plates (4.1,4.2) inboard is provided with the rudder face groove (6) suitable with the both sides rudder face difference of rudder sheet to be processed (1), and described two profile backing plates (4.1,4.2) upper surface is provided with for two the clamping journal stirrups (7.1,7.2) of restriction rudder sheet (1) in the anchor clamps position.
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| CN103722224A (en) * | 2013-12-03 | 2014-04-16 | 齐齐哈尔市金车工业公司 | Processing technology for side bearing base and tooling used therein |
| CN104308239A (en) * | 2014-10-10 | 2015-01-28 | 哈尔滨汽轮机厂有限责任公司 | Sticky processing method for diversion core mandrel |
| CN105643315A (en) * | 2016-03-23 | 2016-06-08 | 上海应用技术学院 | Clamping method and device for irregularly-shaped cylinder part |
| CN106392720A (en) * | 2016-10-20 | 2017-02-15 | 成都久欣时代科技有限公司 | Missile rudder piece tool fixture |
| CN109238634A (en) * | 2018-09-12 | 2019-01-18 | 北京空天技术研究所 | Hypersonic aircraft model in wind tunnel rudder-face device |
| CN109352365A (en) * | 2018-12-12 | 2019-02-19 | 中国航发湖南南方宇航工业有限公司 | A kind of thin wall special-shaped branch board clamp and the method for processing the supporting plate step surface |
| CN111774823A (en) * | 2020-07-17 | 2020-10-16 | 四川布蕾德机械制造有限公司 | Method for machining stator blade of aircraft engine |
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| CN109352365A (en) * | 2018-12-12 | 2019-02-19 | 中国航发湖南南方宇航工业有限公司 | A kind of thin wall special-shaped branch board clamp and the method for processing the supporting plate step surface |
| CN109352365B (en) * | 2018-12-12 | 2023-09-29 | 中国航发湖南南方宇航工业有限公司 | Thin-wall special-shaped support plate clamp and method for machining step surface of support plate |
| CN111774823A (en) * | 2020-07-17 | 2020-10-16 | 四川布蕾德机械制造有限公司 | Method for machining stator blade of aircraft engine |
| CN112589485A (en) * | 2020-11-16 | 2021-04-02 | 中国航发西安动力控制科技有限公司 | Method for processing special-shaped sealing ring, and process pressing plate and positioning plate for processing |
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| CN102873383B (en) | 2014-07-23 |
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