CN106645223B - A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor - Google Patents
A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor Download PDFInfo
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- CN106645223B CN106645223B CN201611148646.XA CN201611148646A CN106645223B CN 106645223 B CN106645223 B CN 106645223B CN 201611148646 A CN201611148646 A CN 201611148646A CN 106645223 B CN106645223 B CN 106645223B
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 230000007547 defect Effects 0.000 claims abstract description 13
- 238000005286 illumination Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000011218 segmentation Effects 0.000 claims abstract description 6
- 239000003550 marker Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000009659 non-destructive testing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention is specially a kind of lossless detection method of carbon fibre composite multiple-blade integral rotor, and solving the problems, such as existing lossless detection method, there are above-mentioned shortcomings.Using following steps: a, numbering the leaf marking on integral rotor；B, three apparatus of coordinate detecting of X-ray is selected；C, adjustment workpiece is within the range of exposures of beam and within the range of receiving of receiving panel；D, adjustment receiving panel to ray tube distance and workpiece to ray tube distance；E, workpiece segmentation position is calculated；F, the transmitting illumination parameter in the area Ji Bao, the area ray Hou is determined；G, workpiece is removed into detection range and carries out transillumination；H, transmitting illumination parameter and workpiece segmentation position are inputted into detection device；I, scanning mode is set as conical scan；J, final complete 3D workpiece figure is formed；K, cutting carries out defects assessment and precise measurement.Efficiency of the present invention is higher, and without check frequency.
Description
Technical field
The present invention relates to lossless detection method, specially a kind of lossless inspection of carbon fibre composite multiple-blade integral rotor
Survey method.
Background technique
Carbon fibre composite makes in each field of the army and the people extensively because of the features such as its is light-weight, specific strength is high, corrosion-resistant
With the main parts size-multi-blade rotor for navigating by water device propulsion device has also applied carbon fibre composite to carry out entirety
Processing and manufacturing.
Carbon fibre composite multiple-blade integral rotor after processing is completed, to ensure its intensity and reliability, it is desirable that it
Internal soundness carries out non-destructive testing, with determine inside it whether containing the defect that uses of having an impact (layering, stomata, is mingled with unsticking
Deng).
For the carbon fibre composite multiple-blade integral rotor that structure is complicated, bulk is narrow, using current normal
Rule lossless detection method, which carries out non-destructive testing it, to be had certain problems, if radiography detection is due to the knot of integral rotor
Structure is complicated, bulk is narrow, can not pieces of cloth；Then multilayered structure overlapping imaging when Radiography Inspection, can not observe, and ray
Detection can not detect layering homalographic type defect；Ultrasound examination is in ultrasound examination blind area, simultaneously since vane thickness is small
Blade root void is small, shape is special, is not also available ultrasound examination；Magnetic testing can only detect ferrimagnet, and carbon
Fibrous composite is nonmagnetic, not can be carried out Magnetic testing；Liquid penetrant testing can only detect surface opening type defect, to inside workpiece
Defect can not detect；EDDY CURRENT can only detect the shallower depth in surface, can not detect to the defect of deeper inside.Therefore
Conventional lossless detection method can not carry out the internal flaw of carbon fibre composite multiple-blade integral rotor comprehensively effective
Detection.
Summary of the invention
The present invention detects to solve existing lossless detection method to carbon fibre composite multiple-blade integral rotor
When there are problems that above-mentioned shortcoming, provide a kind of non-destructive testing side of carbon fibre composite multiple-blade integral rotor
Method.
The present invention is achieved by the following technical scheme: a kind of carbon fibre composite multiple-blade integral rotor is lossless
Detection method, using following steps: the blade on integral rotor a, being pressed marker number clockwise or counterclockwise；B, basis
Three apparatus of coordinate detecting of size selection X-ray of tested part, powers on and is preheated；C, adjustment workpiece orientation keeps it tested
Position is within the range of exposures of beam and within the range of receiving of receiving panel, and just by workpiece Base Serial Number blade
Datum mark to receiving panel direction, as workpiece rotation；D, according to best magnification formulaIt calculates most
Good amplification factor, MoFor best magnification, UDFor the inherent unsharpness of image receptive panel, Φ is ray source focus size；
Then according to formulaWorkpiece is calculated to ray tube distance, f is workpiece to ray tube distance, MoFor best magnification,
F is distance of the receiving panel to ray tube, finally by the distance and work of the data point reuse receiving panel being calculated to ray tube
Part to ray tube distance (being determined according to workpiece size and ray cone beam angle)；E, three apparatus of coordinate detecting of X-ray input calculates
Automatically the workpiece segmentation position in X-axis and Y-axis both direction is calculated after obtained best magnification and diameter of work；f,
It constantly regulate transmitting illumination parameter and observes the Black-White at workpiece image different-thickness, determine the transillumination in the area Ji Bao, the area ray Hou
Parameter；G, workpiece is removed into detection range, carries out transillumination using the area Hou transmitting illumination parameter；H, by the transillumination in the area Ji Bao, the area Hou
Parameter and workpiece segmentation position input three apparatus of coordinate detecting of X-ray simultaneously confirm；I, setting three apparatus of coordinate detecting of X-ray scanning
Mode is conical scan, and workpiece rotation number=π/4 × panel pixel size rotates angle=360 °/workpiece rotation time every time
Number；J, high pressure key is pressed, starts transillumination scanning, system carries out 3D reconstruct to collected information while scanning, to be scanned
After being fully completed, system carries out data splicing automatically, forms final complete 3D workpiece figure；K, it from 3D workpiece figure, can see
To the defect and 3D distribution situation of inside workpiece, it can according to need choose arbitrary section progress cutting at this time, and obtained in cutting
To 2D plan view in carry out the precise measurement of defects assessment and flaw size, judge whether part qualified with this.
The lossless detection method is by three apparatus of coordinate detecting of X-ray, using conical scan technology, carries out full side to rotor
The ray scanning of position, overcomes when existing lossless detection method detects carbon fibre composite multiple-blade integral rotor and deposits
The above-mentioned shortcoming the problem of.
It is compound that lossless detection method of the present invention has the following beneficial effects: 1, carbon fiber can be completed in one-shot measurement
The non-destructive testing at whole positions of material multiple-blade integral rotor and precise measure measurement, are combined, effect without a variety of detection methods
Rate is higher；2,100% non-destructive testing of carbon fibre composite multiple-blade integral rotor internal flaw, no check frequency are realized；
3, it is limited less by material property, is particularly suitable for the non-destructive testing of composite material.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of carbon fibre composite multiple-blade integral rotor.
Specific embodiment
A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor, using following steps: a, will be whole
Blade on rotor is by marker number clockwise or counterclockwise；B, according to three coordinate of size selection X-ray of tested part
Detection device powers on and is preheated；C, adjustment workpiece orientation is in its tested position within the range of exposures of beam
And within the range of receiving of receiving panel, and by workpiece Base Serial Number blade face receiving panel direction, as workpiece rotation
Datum mark；D, according to best magnification formulaCalculate best magnification, MoFor best times magnification
Number, UDFor the inherent unsharpness of image receptive panel, Φ is ray source focus size；Then according to formulaIt calculates
For workpiece to ray tube distance, f is workpiece to ray tube distance, MoFor best magnification, F be receiving panel to ray tube away from
From finally by the distance of the distance of the data point reuse receiving panel being calculated to ray tube and workpiece to ray tube；E, X-ray
It is calculated automatically after best magnification and diameter of work that the input of three apparatus of coordinate detecting is calculated in X-axis and Y-axis two
Workpiece on direction is segmented position；F, it constantly regulate transmitting illumination parameter and observes the Black-White at workpiece image different-thickness, determine
The transmitting illumination parameter in the area Ji Bao, the area ray Hou；G, workpiece is removed into detection range, carries out transillumination using the area Hou transmitting illumination parameter；
H, the transmitting illumination parameter in the area Ji Bao, the area Hou and workpiece segmentation position are inputted into three apparatus of coordinate detecting of X-ray and confirmed；I, it sets
Determine three apparatus of coordinate detecting scanning mode of X-ray be conical scan, workpiece rotation number=π/4 × panel pixel size, every time
Rotate angle=360 °/workpiece rotation number；J, high pressure key is pressed, starts transillumination scanning, system is while scanning to acquisition
The information that arrives carries out 3D reconstruct, it is to be scanned be fully completed after, system carries out data splicing automatically, forms final complete 3D workpiece
Figure；K, from 3D workpiece figure, it can be seen that it is any to can according to need selection at this time for the defect and 3D distribution situation of inside workpiece
Section carries out cutting, and the precise measurement of defects assessment and flaw size is carried out in the 2D plan view that cutting obtains, and is sentenced with this
Whether part off zero is qualified.
In specific implementation process, the space curved surface blade of carbon fibre composite multiple-blade integral rotor is 11, uniformly
It is distributed in around wheel hub, hub centre material is aluminium alloy, by thermal bond pattern by aluminium alloy core and carbon fiber composite
Material wheel hub is closely linked, 2 equivalent defect not missing inspection of technical requirements Φ.
By the blade on integral rotor, marker number is 1#~11# counterclockwise；Three apparatus of coordinate detecting of X-ray
Model THC225, focal spot size are 1 μm~3 μm；Axially inclined 45 ° of workpiece are placed in the tooling of a plastic material, is led to
The position that hand push button adjusts workpiece is crossed, job initiation number blade is 1# blade, and the maximum distance of panel to ray tube is
1180mm is calculated according to 1.33 times of optical magnifications, and adjustment workpiece is at ray tube 885mm；Determine ray most
Whole transmitting illumination parameter is thickness area high pressure 225kV, electric current 800 μ A, 3 μm of focus；Thin area's high pressure 160kV, electric current 1000 μ A, 2 μm of focus；
The number of revolutions of conical scan workpiece 800 times, every time 0.45 ° of angle of rotation.
Claims (1)
1. a kind of lossless detection method of carbon fibre composite multiple-blade integral rotor, it is characterised in that: use following steps:
A, by the blade on integral rotor by marker number clockwise or counterclockwise；B, it is penetrated according to the size selection X of tested part
Three apparatus of coordinate detecting of line, powers on and is preheated；C, adjustment workpiece orientation makes it be tested the irradiation that position is in beam
Within the scope of and the range of receiving of receiving panel within, and by workpiece Base Serial Number blade face receiving panel direction, as
The datum mark of workpiece rotation；D, according to best magnification formulaCalculate best magnification, MoIt is best
Amplification factor, UDFor the inherent unsharpness of image-receptive plate, Φ is ray source focus size；Then according to formulaWorkpiece is calculated to ray tube distance, f is workpiece to ray tube distance, MoFor best magnification, F is receiving panel
To the distance of ray tube, finally by the distance of the data point reuse receiving panel being calculated to ray tube and workpiece to ray tube
Distance；E, it is calculated automatically after the best magnification and diameter of work that the input of three apparatus of coordinate detecting of X-ray is calculated in X
Workpiece on axis and Y-axis both direction is segmented position；F, it constantly regulate transmitting illumination parameter and observes at workpiece image different-thickness
Black-White determines the transmitting illumination parameter in the area Ji Bao, the area ray Hou；G, workpiece is removed into detection range, is joined using the area Hou transillumination
Number carries out transillumination；H, the transmitting illumination parameter in the area Ji Bao, the area Hou and workpiece segmentation position are inputted into three apparatus of coordinate detecting of X-ray
And confirm；I, three apparatus of coordinate detecting scanning mode of X-ray is set as conical scan, workpiece rotation number=π/4 × panel picture
Plain size rotates angle=360 °/workpiece rotation number every time；J, high pressure key is pressed, starts transillumination scanning, system is in scanning
3D reconstruct carried out to collected information simultaneously, it is to be scanned be fully completed after, system carries out data splicing automatically, is formed final complete
Whole 3D workpiece figure；K, from 3D workpiece figure, it can be seen that the defect and 3D distribution situation of inside workpiece, at this time choosing as needed
It takes arbitrary section to carry out cutting, and carries out the precise measurement of defects assessment and flaw size in the 2D plan view that cutting obtains,
Judge whether part is qualified with this.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148646.XA CN106645223B (en) | 2016-12-13 | 2016-12-13 | A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148646.XA CN106645223B (en) | 2016-12-13 | 2016-12-13 | A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor |
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| CN106645223A CN106645223A (en) | 2017-05-10 |
| CN106645223B true CN106645223B (en) | 2019-03-15 |
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| CN108229080B (en) * | 2018-03-26 | 2020-06-19 | 西安交通大学 | Optimization method of digital ray zone transillumination direction for gas turbine blades with unknown model |
| CN112730470B (en) * | 2020-12-24 | 2024-04-16 | 中国航发南方工业有限公司 | Method for determining X-ray detection blade trailing edge hole machining defect transillumination angle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267049A (en) * | 2014-10-10 | 2015-01-07 | 北京理工大学 | Blade manipulator ray layer non-destructive testing method |
| CN104655658A (en) * | 2015-02-10 | 2015-05-27 | 西安交通大学 | Large-sized high-temperature blade internal defect three-dimensional nondestructive detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7050535B2 (en) * | 2004-09-16 | 2006-05-23 | The Boeing Company | X-ray laminography inspection system and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267049A (en) * | 2014-10-10 | 2015-01-07 | 北京理工大学 | Blade manipulator ray layer non-destructive testing method |
| CN104655658A (en) * | 2015-02-10 | 2015-05-27 | 西安交通大学 | Large-sized high-temperature blade internal defect three-dimensional nondestructive detection method |
Non-Patent Citations (2)
| Title |
|---|
| 基于多幅X射线数字图像的缺陷自动识别技术;周正干 等;《机械工程学报》;20061231;第42卷(第3期);全文 |
| 航空发动机叶片X射线数字图像分析的一种新方法;周正干 等;《中国机械工程》;20061231;第17卷(第21期);全文 |
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