CN113720911B - Positioning tool and judging method for detecting weld defects of air inlet casing - Google Patents
Positioning tool and judging method for detecting weld defects of air inlet casing Download PDFInfo
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- CN113720911B CN113720911B CN202111018924.0A CN202111018924A CN113720911B CN 113720911 B CN113720911 B CN 113720911B CN 202111018924 A CN202111018924 A CN 202111018924A CN 113720911 B CN113720911 B CN 113720911B
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- 230000007547 defect Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 17
- 230000005855 radiation Effects 0.000 claims description 6
- 230000008719 thickening Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 210000001624 hip Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
Abstract
The invention relates to a positioning tool and a judging method for detecting weld defects of an air inlet casing, wherein the positioning tool comprises a fan-shaped supporting plate and a supporting plate piece, one side of the fan-shaped supporting plate is arc-shaped and is tightly attached to an inner circular arc of the air inlet casing; the supporting plate is fixed on the fan-shaped supporting plate through a pin, and the lower bottom edge of the supporting bottom plate is a straight edge and coincides with the symmetrical center of the arc-shaped edge; two U-shaped grooves are arranged on the side of the lower bottom edge of the supporting plate in parallel, the central line of one U-shaped groove close to the fan-shaped supporting plate coincides with the inner ring weld joint, the other U-shaped groove is far away from the fan-shaped supporting plate and is 10-30mm away from the other U-shaped groove, a cross laser is arranged in the U-shaped groove, and the cross light spot horizontal lines of the cross laser in the two U-shaped grooves coincide; the power supply, the switch and the power amplifier are fixed on the supporting plate, and the cross laser and the power amplifier are electrically connected with the power supply and the switch through wires. The invention realizes accurate positioning of defects on the premise of ensuring reliable detection results and not reducing detection efficiency.
Description
Technical Field
The invention belongs to the technical field of weld defect detection, and particularly relates to a positioning tool and a judging method for weld defect detection of an air inlet casing.
Background
The air inlet casing is an important part at the front end of the engine, the air inlet casing is formed by welding inner and outer rings and more than ten support plates, the inner and outer rings are uniformly and radially connected by adopting more than ten support plates, the support plates are connected with protruding leaf-shaped parts on the inner rings in a welding mode, and the support plates are of a cavity structure, and the inner cavities of the support plates are of two sizes (wherein the support plates with large inner cavities are wide support plates and the support plates with small inner cavities are narrow support plates), so that the gaps between the two support plates are different from each other between 45mm and 65 mm. The cross section of the support plate is in a sharp isosceles triangle shape, two waists of the triangle are in a slightly convex arc shape, the bottom edge is very short (the bottom edge of the narrow support plate is about 8mm, and the bottom edge of the wide support plate is about 13 mm), and the detected welding seams respectively occupy the two waists of the triangle. At present, film ray detection is generally adopted for detecting the weld defects, but due to the narrow inner cavity of the support plate and the small weld distance at two sides of the support plate, the phenomenon that the weld defects are not completely welded in the weld is difficult to judge on which side of the specific support plate the weld is defective is difficult to judge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a positioning tool and a judging method for detecting the weld defects of an air inlet casing.
The positioning tool for detecting the weld defects of the air inlet casing comprises a fan-shaped supporting plate and a supporting plate piece, wherein one side of the fan-shaped supporting plate is arc-shaped, and the arc-shaped end of the fan-shaped supporting plate is tightly attached to the inner circular arc of the air inlet casing; the supporting plate is fixed on the fan-shaped supporting plate through a pin, and the lower bottom edge of the supporting bottom plate is a straight edge and coincides with the symmetrical center of the arc-shaped edge; two U-shaped grooves are arranged on the side of the lower bottom edge of the supporting plate in parallel, the central line of one U-shaped groove close to the fan-shaped supporting plate coincides with the inner ring welding seam, the other U-shaped groove is far away from the fan-shaped supporting plate and is 10-30mm away from the other U-shaped groove, a cross laser is arranged in the U-shaped groove, and the cross light spots of the cross laser in the two U-shaped grooves coincide horizontally; the power supply, the switch and the power amplifier are fixed on the supporting plate, and the cross laser and the power amplifier are electrically connected with the power supply and the switch through wires.
The fan-shaped support plate is of a multi-layer sheet structure and is assembled by adopting a plurality of layers of pins according to the requirements of actual parts so as to be matched with the inner circle of the inner ring of the air inlet casing conveniently.
In order to achieve the purpose of thickening but not increasing weight, a plurality of gaskets are arranged among the plurality of layers of sheets of the fan-shaped supporting plate.
The wire outside that cross laser and power and switch are connected is provided with the wire visor.
The method for judging the weld defects by using the positioning tool for detecting the weld defects of the air inlet casing comprises the following steps:
step one: the position of the positioning tool is moved, so that the arc-shaped side of the fan-shaped support plate is clung to the inner arc of the inner ring of the air inlet casing;
step two: sliding the positioning tool along the inner circumference of the inner ring of the air inlet casing to align the straight side of the supporting plate with the cross laser with one side of a support plate to be detected of the air inlet casing;
step three: turning on a power supply and a switch, and enabling the two cross lasers to emit cross light spots, so that horizontal lines of the two cross light spots coincide, and two vertical light spots are parallel;
step four: the head of the ray machine head is enabled to reach the position right above the interval between two adjacent support plates of the air inlet casing, wherein the two support plates are one support plate to be detected in the second step and one support plate which is adjacent to the support plate and is far away from the positioning tool; then adjusting the tube head of the ray machine to enable the symmetrical center surface of the tube head of the ray machine to be positioned at the middle position of two perpendicular light spots of the light spot of the cross laser;
step five: according to the brightness degree of the vertical light spot of the cross laser striking the head of the ray machine, reversely adjusting the power amplifier to ensure that the vertical laser light spot on the head of the ray machine is soft and not dazzling;
step six: lowering the tube head of the ray machine to reach a transillumination position, namely a position where a ray bundle emitted by the tube head can cover a welding line, then detaching the positioning tool, attaching the film to one side of a support plate to be detected, which is far away from the tube head of the ray machine, namely the film and radiation sources of the ray machine are positioned on two sides of the support plate to be detected, covering the welding line, and starting transillumination;
step seven: processing the film after transillumination in darkroom;
step eight: and observing from the film image, wherein two welding lines of the support plate of the air inlet casing are distributed in a V shape, if the defect image is close to the inner ring, the defect is indicated to be on the side of the support plate, on which the film is attached, and if the defect is far from the inner ring, the defect is indicated to be on the side of the support plate, on which the radiation source is placed.
The beneficial effects of the invention are as follows: the invention provides a positioning tool and a judging method for detecting defects of welding seams of an air inlet casing, which can realize accurate positioning of defects, reduce repair welding times and reduce internal stress and deformation of parts on the premise of ensuring reliable detection results and not reducing detection efficiency. The method is simple, convenient to operate and accurate in positioning, and the defect detection is not affected.
Drawings
FIG. 1 is a schematic diagram of a positioning tool for detecting weld defects of an air inlet casing;
FIG. 2 is a schematic diagram of a working state of weld defect determination by using the positioning tool of the present invention (wherein, the diagram (a) is a schematic diagram of the positions of the positioning tool and the support plate of the air inlet casing, the diagram (b) is a schematic diagram of the position of the head of the ray machine, and the diagram (c) is a schematic diagram after film attachment);
wherein,
1-pin, 2-sector support plate, 3-support plate, 4-cross laser, 5-power amplifier, 6-power supply and switch, 7-wire, 8-wire protective cover, 9-U-shaped groove, 10-straight edge, 11-support plate, 12-ray machine head and 13-film.
Detailed Description
For better explanation of the present invention, for easy understanding, the technical solution and effects of the present invention will be described in detail below by way of specific embodiments with reference to the accompanying drawings.
As shown in FIG. 1, the positioning tool for detecting the weld defects of the air inlet casing comprises a fan-shaped supporting plate 2 and a supporting plate 3, wherein one side of the fan-shaped supporting plate 2 is arc-shaped, the arc-shaped end of the fan-shaped supporting plate 2 is tightly attached to the inner circular arc of the inner ring of the air inlet casing, the fan-shaped supporting plate 2 is of a multi-layer sheet structure, and the multi-layer pin 1 is adopted for assembly according to the needs of actual parts so as to be convenient to be matched with the inner circle of the inner ring of the air inlet casing. In order to achieve the purpose of thickening but not increasing weight, a plurality of gaskets are arranged among the layers of the sheet-shaped fan-shaped supporting plate 2. The supporting plate 3 is fixed on the fan-shaped supporting plate 2 through the pin 1, and the lower bottom edge of the supporting bottom plate is a straight edge 10 which coincides with the symmetrical center of the arc edge. Two U-shaped grooves 9 are arranged on the lower bottom side of the supporting plate 3 in parallel, so that the cross laser 4 can be conveniently placed and fixed; the centre line of one U-shaped groove 9 near the sector support plate 2 coincides with the inner ring weld seam, the other U-shaped groove 9 is far away from the sector support plate 2 and is 10-30mm away from the other U-shaped groove 9, and in this embodiment the other U-shaped groove 9 is far away from the sector support plate 2 and is 20mm away from the other U-shaped groove 9. The inside of the U-shaped grooves 9 is provided with a cross laser 4, the cross light spots of the cross lasers 4 in the two U-shaped grooves 9 are overlapped horizontally, the ray machine head is moved, two vertical laser light spots are made to strike the ray machine head, and the area indicated by the two vertical light spots is the position of the ray machine head capable of distinguishing the weld defect position. The supporting plate 3 is fixedly provided with a power supply, a switch 6 and a power amplifier 5, and the supporting plate 3 plays a role in bearing the power supply, the switch 6 and the power amplifier 5. The cross laser 4 and the power amplifier 5 are electrically connected with a power supply and a switch 6 through a wire 7. The wire 7 of the cross laser 4 connected with the power supply and the switch 6 is provided with a wire protecting cover 8 outside.
The brightness of the light spot of the cross laser 4 is adjusted by the power amplifier 5, so that the light spot is suitable for human eyes to observe.
The method for judging the weld defects of the air inlet casing by adopting the positioning tool for detecting the weld defects of the air inlet casing specifically comprises the following steps:
step one: the position of the positioning tool is moved, so that the arc-shaped side of the fan-shaped support plate 2 is clung to the inner arc of the inner ring of the air inlet casing;
step two: sliding the positioning tool along the inner circumference of the inner ring of the air inlet casing to align the straight edge 10 side of the supporting plate 3 with the cross laser 4 with one side of a support plate to be detected of the air inlet casing, as shown in fig. 2 (a);
step three: turning on a power supply and a switch 6, the two cross lasers 4 emit cross light spots, so that horizontal lines of the two cross light spots coincide, and the two vertical light spots are parallel;
step four: the head of the ray machine head is enabled to reach the position right above the interval between two adjacent support plates of the air inlet casing, wherein the two support plates are one support plate to be detected in the second step and one support plate which is adjacent to the support plate and is far away from the positioning tool; then adjusting the tube head of the ray machine to enable the symmetrical center surface of the tube head of the ray machine to be positioned at the middle position of two perpendicular light spots of the cross laser 4;
step five: according to the brightness degree of the vertical light spot of the cross laser 4 striking the head of the ray machine, the power amplifier 5 is reversely adjusted to make the vertical laser light spot on the head soft and not dazzling;
step six: lowering the tube head of the ray machine to reach a transillumination position, namely a position where a ray bundle emitted by the tube head can cover a welding line, as shown in fig. 2 (b), then detaching the positioning tool, attaching the film to one side of a support plate to be detected, which is far away from the tube head of the ray machine, namely the film and radiation sources of the ray machine are positioned on two sides of the support plate to be detected, covering the welding line, as shown in fig. 2 (c), and starting transillumination;
step seven: processing the film after transillumination in darkroom;
step eight: and observing from the film image, wherein two welding lines of the support plate of the air inlet casing are distributed in a V shape, if the defect image is close to the inner ring, the defect is indicated to be on the side of the support plate, on which the film is attached, and if the defect is far from the inner ring, the defect is indicated to be on the side of the support plate, on which the radiation source is placed.
Claims (5)
1. Positioning tool for detecting weld defects of air inlet casing is characterized in that: the fan-shaped support plate comprises a fan-shaped support plate and a support plate piece, wherein one side of the fan-shaped support plate is arc-shaped, and the arc-shaped end of the fan-shaped support plate is tightly attached to the inner circular arc of the inner ring of the air inlet casing; the supporting plate is fixed on the fan-shaped supporting plate through a pin, and the lower bottom edge of the supporting bottom plate is a straight edge and coincides with the symmetrical center of the arc-shaped edge; two U-shaped grooves are arranged on the side of the lower bottom edge of the supporting plate in parallel, the central line of one U-shaped groove close to the fan-shaped supporting plate coincides with the inner ring welding seam, the other U-shaped groove is far away from the fan-shaped supporting plate and is 10-30mm away from the other U-shaped groove, a cross laser is arranged in the U-shaped groove, and the cross light spots of the cross laser in the two U-shaped grooves coincide horizontally; moving the ray machine head to make two vertical laser light spots strike the ray machine head, wherein the area indicated by the two vertical light spots is the position of the ray machine head capable of distinguishing the defect position of the welding line; the power supply, the switch and the power amplifier are fixed on the supporting plate, and the cross laser and the power amplifier are electrically connected with the power supply and the switch through wires.
2. The positioning tool for detecting weld defects of an air inlet casing according to claim 1, wherein the positioning tool comprises: the fan-shaped support plate is of a multi-layer sheet structure and is assembled by adopting a plurality of layers of pins according to the requirements of actual parts so as to be matched with the inner circle of the inner ring of the air inlet casing conveniently.
3. The positioning tool for detecting weld defects of an air inlet casing according to claim 2, wherein: in order to achieve the purpose of thickening but not increasing weight, a plurality of gaskets are arranged among the plurality of layers of sheets of the fan-shaped supporting plate.
4. The positioning tool for detecting weld defects of an air inlet casing according to claim 1, wherein the positioning tool comprises: the wire outside that cross laser and power and switch are connected is provided with the wire visor.
5. A method for performing weld defect determination by using a positioning tool for weld defect detection of an air inlet casing according to any one of claims 1 to 4, comprising the steps of:
step one: the position of the positioning tool is moved, so that the arc-shaped side of the fan-shaped support plate is clung to the inner arc of the inner ring of the air inlet casing;
step two: sliding the positioning tool along the inner circumference of the inner ring of the air inlet casing to align the straight side of the supporting plate with the cross laser with one side of a support plate to be detected of the air inlet casing;
step three: turning on a power supply and a switch, and enabling the two cross lasers to emit cross light spots, so that horizontal lines of the two cross light spots coincide, and two vertical light spots are parallel;
step four: the head of the ray machine head is enabled to reach the position right above the interval between two adjacent support plates of the air inlet casing, wherein the two adjacent support plates are one support plate to be detected in the second step and one support plate adjacent to the support plate and far away from the positioning tool; then adjusting the tube head of the ray machine to enable the symmetrical center surface of the tube head of the ray machine to be positioned at the middle position of two perpendicular light spots of the light spot of the cross laser;
step five: according to the brightness degree of the vertical light spot of the cross laser striking the head of the ray machine, reversely adjusting the power amplifier to ensure that the vertical laser light spot on the head of the ray machine is soft and not dazzling;
step six: lowering the tube head of the ray machine to reach a transillumination position, namely a position where a ray bundle emitted by the tube head can cover a welding line, then detaching the positioning tool, attaching the film to one side of a support plate to be detected, which is far away from the tube head of the ray machine, namely the film and radiation sources of the ray machine are positioned on two sides of the support plate to be detected, covering the welding line, and starting transillumination;
step seven: processing the film after transillumination in darkroom;
step eight: and observing from the film image, wherein two welding lines of the support plate of the air inlet casing are distributed in a V shape, if the defect image is close to the inner ring, the defect is indicated to be on the side of the support plate, on which the film is attached, and if the defect is far from the inner ring, the defect is indicated to be on the side of the support plate, on which the radiation source is placed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111018924.0A CN113720911B (en) | 2021-09-01 | 2021-09-01 | Positioning tool and judging method for detecting weld defects of air inlet casing |
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| CN202111018924.0A CN113720911B (en) | 2021-09-01 | 2021-09-01 | Positioning tool and judging method for detecting weld defects of air inlet casing |
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| CN113720911A CN113720911A (en) | 2021-11-30 |
| CN113720911B true CN113720911B (en) | 2024-02-06 |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2252769A6 (en) * | 1973-11-22 | 1975-06-20 | Fourcy Michel | High power wind motor with vertical axis - has cable controlled hinged shutters mounted on radial blades |
| US6060685A (en) * | 1997-10-23 | 2000-05-09 | Trw Inc. | Method for monitoring laser weld quality via plasma light intensity measurements |
| CN101034072A (en) * | 2007-04-13 | 2007-09-12 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Method and device for confirming irradiation orientation of pressure container weld seam ray detecting ray bundle |
| CN204321923U (en) * | 2014-12-15 | 2015-05-13 | 贵州黎阳航空动力有限公司 | A kind of x-ray inspection fixture for aeroengine combustor buring room casing |
| CN104698015A (en) * | 2015-02-12 | 2015-06-10 | 重庆旗能电铝有限公司 | Power station boiler membrane panel welding joint blind area X ray detection method |
| CN105301019A (en) * | 2015-10-26 | 2016-02-03 | 成都发动机（集团）有限公司 | Device for exposed radiographic testing of circumferential weld joint of annular workpiece |
| CN105445297A (en) * | 2015-11-24 | 2016-03-30 | 沈阳黎明航空发动机(集团)有限责任公司 | Radiographic testing device for small-diameter pipe joint girth welds and testing method |
| CN105738070A (en) * | 2016-04-28 | 2016-07-06 | 贵州航空发动机研究所 | Airplane admission passage outlet flow field measuring device |
| CN105882698A (en) * | 2016-04-06 | 2016-08-24 | 中国南方航空工业(集团)有限公司 | Tooling trolley for radiographic detection of casing part of aeroengine |
| CN108020566A (en) * | 2017-11-30 | 2018-05-11 | 中国航发航空科技股份有限公司 | A kind of auxiliary mould equipment for casing welding quality ray detection |
| CN108015420A (en) * | 2017-12-01 | 2018-05-11 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of method for laser welding of casing small space |
| CN207816862U (en) * | 2017-12-25 | 2018-09-04 | 中国航发南方工业有限公司 | Pipe fitting ray detection transillumination device |
| CN109613027A (en) * | 2018-11-29 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | To the process unit and method of turbo blade leading edge air film hole X-ray detection |
| CN110806604A (en) * | 2019-11-28 | 2020-02-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Device and method for calibrating transillumination center of X-ray machine |
| CN110977338A (en) * | 2019-11-25 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Integration method of tailor-welded structure air inlet casing |
| CN112051286A (en) * | 2020-09-17 | 2020-12-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Special X-ray detection tool for casting high-vortex blade |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7197830B2 (en) * | 2005-03-18 | 2007-04-03 | The Boeing Company | Alignment quality indicator |
| US9839979B2 (en) * | 2014-12-22 | 2017-12-12 | Edison Welding Institute, Inc. | System for evaluating weld quality using eddy currents |
| US11612957B2 (en) * | 2016-04-29 | 2023-03-28 | Nuburu, Inc. | Methods and systems for welding copper and other metals using blue lasers |
-
2021
- 2021-09-01 CN CN202111018924.0A patent/CN113720911B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2252769A6 (en) * | 1973-11-22 | 1975-06-20 | Fourcy Michel | High power wind motor with vertical axis - has cable controlled hinged shutters mounted on radial blades |
| US6060685A (en) * | 1997-10-23 | 2000-05-09 | Trw Inc. | Method for monitoring laser weld quality via plasma light intensity measurements |
| CN101034072A (en) * | 2007-04-13 | 2007-09-12 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Method and device for confirming irradiation orientation of pressure container weld seam ray detecting ray bundle |
| CN204321923U (en) * | 2014-12-15 | 2015-05-13 | 贵州黎阳航空动力有限公司 | A kind of x-ray inspection fixture for aeroengine combustor buring room casing |
| CN104698015A (en) * | 2015-02-12 | 2015-06-10 | 重庆旗能电铝有限公司 | Power station boiler membrane panel welding joint blind area X ray detection method |
| CN105301019A (en) * | 2015-10-26 | 2016-02-03 | 成都发动机（集团）有限公司 | Device for exposed radiographic testing of circumferential weld joint of annular workpiece |
| CN105445297A (en) * | 2015-11-24 | 2016-03-30 | 沈阳黎明航空发动机(集团)有限责任公司 | Radiographic testing device for small-diameter pipe joint girth welds and testing method |
| CN105882698A (en) * | 2016-04-06 | 2016-08-24 | 中国南方航空工业(集团)有限公司 | Tooling trolley for radiographic detection of casing part of aeroengine |
| CN105738070A (en) * | 2016-04-28 | 2016-07-06 | 贵州航空发动机研究所 | Airplane admission passage outlet flow field measuring device |
| CN108020566A (en) * | 2017-11-30 | 2018-05-11 | 中国航发航空科技股份有限公司 | A kind of auxiliary mould equipment for casing welding quality ray detection |
| CN108015420A (en) * | 2017-12-01 | 2018-05-11 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of method for laser welding of casing small space |
| CN207816862U (en) * | 2017-12-25 | 2018-09-04 | 中国航发南方工业有限公司 | Pipe fitting ray detection transillumination device |
| CN109613027A (en) * | 2018-11-29 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | To the process unit and method of turbo blade leading edge air film hole X-ray detection |
| CN110977338A (en) * | 2019-11-25 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Integration method of tailor-welded structure air inlet casing |
| CN110806604A (en) * | 2019-11-28 | 2020-02-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Device and method for calibrating transillumination center of X-ray machine |
| CN112051286A (en) * | 2020-09-17 | 2020-12-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Special X-ray detection tool for casting high-vortex blade |
Non-Patent Citations (1)
| Title |
|---|
| 钛合金整体叶盘数字射线检测技术研究;张孝玲等;《无损探伤》;第41卷(第4期);第42-45页 * |
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