CN106645223A - Nondestructive testing method of carbon fiber composite multi-blade integral rotor - Google Patents
Nondestructive testing method of carbon fiber composite multi-blade integral rotor Download PDFInfo
- Publication number
- CN106645223A CN106645223A CN201611148646.XA CN201611148646A CN106645223A CN 106645223 A CN106645223 A CN 106645223A CN 201611148646 A CN201611148646 A CN 201611148646A CN 106645223 A CN106645223 A CN 106645223A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- ray
- ray tube
- transmitting illumination
- integral rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention in particular relates to a nondestructive testing method of a carbon fiber composite multi-blade integral rotor, aiming at solving the problem that the existing nondestructive testing method has the defects. The method comprises the following steps: a. labeling blades on the integral rotor with numbers; b. selecting an X-ray three-dimensional (3D) detection device; c. adjusting a workpiece so as to enable the workpiece to be within the irradiation range of a ray beam and the receiving range of a receiving panel; d. adjusting the distance between the receiving panel and a ray tube and the distance between the workpiece to the ray tube; e. calculating the subsection positions of the workpiece; f. determining the transmitting illumination parameters of the thickest area and the thinnest area of the ray; g. removing the workpiece from the detection range and carrying out transmitting illumination; h. inputting the transmitting illumination parameters and the subsection positions of the workpiece into the detection device; i. setting a scanning way to be conical scanning; j. forming a final complete 3D workpiece figure; k. sectioning for carrying out defect evaluation and accurate measurement. The nondestructive testing method is high in efficiency and free from non-detection zone.
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 technology
Carbon fibre composite because its is lightweight, specific strength is high, it is corrosion-resistant the features such as, extensively make in each field of the army and the people
With the main parts size-multi-blade rotor of ROV propulsion plant also using carbon fibre composite has carried out entirety in water
Processing and manufacturing.
After carbon fibre composite multiple-blade integral rotor is machined, to guarantee its intensity and reliability, it is desirable to it
Whether internal soundness carries out Non-Destructive Testing, (layering, unsticking, pore, be mingled with containing having an impact the defect for using with determining inside it
Deng).
The carbon fibre composite multiple-blade integral rotor narrow and small for complex structure, bulk, using current normal
Rule lossless detection method it is carried out Non-Destructive Testing there is a problem of it is certain, such as radiography detect due to the knot of integral rotor
Structure is complicated, bulk is narrow and small, it is impossible to pieces of cloth；Then sandwich construction overlapping imaging during Radiography Inspection, it is impossible to observe, and ray
Detection cannot detect layering homalographic type defect；Ultrasound examination is little due to vane thickness, in ultrasound examination blind area, while
Blade root void is little, shape is special, cannot also use ultrasound examination；Magnetic testing can only detect ferrimagnet, and carbon
Fibrous composite is nonmagnetic, it is impossible to carry out Magnetic testing；Liquid penetrant testing can only detect surface opening type defect, to inside workpiece
Defect cannot detect；EDDY CURRENT can only detect the shallower depth in surface, and the defect of deeper inside cannot be detected.Therefore
Conventional lossless detection method cannot be carried out comprehensively effectively to the internal flaw of carbon fibre composite multiple-blade integral rotor
Detection.
The content of the invention
The present invention is detected to solve existing lossless detection method to carbon fibre composite multiple-blade integral rotor
When there is a problem of above-mentioned weak point, there is provided a kind of Non-Destructive Testing side of carbon fibre composite multiple-blade integral rotor
Method.
The present invention adopts the following technical scheme that realization：A kind of carbon fibre composite multiple-blade integral rotor it is lossless
Detection method, using following steps：A, by the blade on integral rotor by marker number clockwise or counterclockwise；B, basis
The apparatus of coordinate detecting of size Selection X-ray three of tested part, switches on power and is preheated；C, adjustment workpiece orientation make its tested
Position is within the range of exposures of beam and within the range of receiving of receiving panel, and by workpiece Base Serial Number blade just
To receiving panel direction, as the datum mark of workpiece rotation；D, according to best magnification formulaCalculate most
Good multiplication 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 calculated data point reuse receiving panel to ray tube
The distance (being determined according to workpiece size and ray cone beam angle) of part to ray tube；E, the input of the apparatus of coordinate detecting of X-ray three are calculated
Automatically the workpiece segmentation position in X-axis and Y-axis both direction is calculated after the best magnification for obtaining and diameter of work；f、
Constantly regulate transmitting illumination parameter and the Black-White observed at workpiece image different-thickness, determine the transillumination in Ji Bao areas of ray Hou areas
Parameter；G, workpiece is removed into detection range, using Hou areas transmitting illumination parameter transillumination is carried out；H, by the transillumination in Ji Bao areas of Hou areas
Parameter and workpiece segmentation position are input into the apparatus of coordinate detecting of X-ray three and confirm；I, the apparatus of coordinate detecting scanning of setting X-ray three
Mode is conical scan, and workpiece number of revolutions=π/4 × panel pixel size, each anglec of rotation=360 °/workpiece rotation is secondary
Number；J, high pressure key is pressed, start transillumination scanning, information of the system to collecting while scanning carries out 3D reconstruct, to be scanned
After being fully completed, system carries out data splicing automatically, forms final complete 3D workpiece figures；K, from 3D workpiece figures, can see
To the defect and 3D distribution situations of inside workpiece, now can as needed choose arbitrary section carries out cutting, and obtains in cutting
To 2D plans in carry out the accurate measurement of defects assessment and flaw size, judge whether part qualified with this.
The lossless detection method, using conical scan technology, to rotor full side is carried out by the apparatus of coordinate detecting of X-ray three
The ray scanning of position, overcomes when existing lossless detection method is detected to carbon fibre composite multiple-blade integral rotor and deposits
In the problem of above-mentioned weak point.
Lossless detection method of the present invention has the advantages that：1st, carbon fiber is completed by one-shot measurement to be combined
The Non-Destructive Testing at whole positions of material multiple-blade integral rotor and precise measure are measured, without the need for the combination of various detection methods, effect
Rate is higher；2nd, 100% Non-Destructive Testing of carbon fibre composite multiple-blade integral rotor internal flaw is realized, without check frequency；
3rd, limited few by material behavior, be particularly suited for the Non-Destructive Testing of composite.
Description of the drawings
Fig. 1 is the structural representation 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, general are overall
Blade on rotor is by marker number clockwise or counterclockwise；B, according to the coordinate of size Selection X-ray three of tested part
Testing equipment, switches on power and is preheated；C, adjustment workpiece orientation make 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 just to receiving panel direction, as workpiece rotation
Datum mark；D, according to best magnification formulaCalculate best magnification, MoFor optimal times magnification
Number, UDFor the inherent unsharpness of image receptive panel, Φ is ray source focus size；Then according to formulaCalculate
Workpiece to ray tube distance, f are workpiece to ray tube distance, MoFor best magnification, F be receiving panel to ray tube away from
From, finally by calculated data point reuse receiving panel to ray tube distance and workpiece to ray tube distance；E, X-ray
Three apparatus of coordinate detecting are input into after calculated best magnification and diameter of work and calculate automatically in X-axis and Y-axis two
Workpiece segmentation position on direction；F, constantly regulate transmitting illumination parameter and the Black-White observed at workpiece image different-thickness, it is determined that
The transmitting illumination parameter in Ji Bao areas of ray Hou areas；G, workpiece is removed into detection range, using Hou areas transmitting illumination parameter transillumination is carried out；
H, the transmitting illumination parameter in Ji Bao areas of Hou areas and workpiece segmentation position input and are confirmed the apparatus of coordinate detecting of X-ray three；I, set
The apparatus of coordinate detecting scan mode of X-ray three is determined for conical scan, workpiece number of revolutions=π/4 × panel pixel size, every time
The anglec of rotation=360 °/workpiece number of revolutions；J, high pressure key is pressed, start transillumination scanning, system is while scanning to collection
To information carry 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 figures, it can be seen that the defect and 3D distribution situations of inside workpiece, now can choose as needed arbitrarily
Section carries out cutting, and the accurate measurement of defects assessment and flaw size is carried out in the 2D plans that cutting is obtained, 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, the equivalent defect not missing inspection of technical requirements Φ 2.
By the blade on integral rotor, counterclockwise marker number is 1#～11#；The apparatus of coordinate detecting of X-ray three
Model THC225, focal spot size is 1 μm～3 μm；By workpiece, axially inclined 45 ° are positioned in the frock of a plastic material, lead to
The position that hand push button adjusts workpiece is crossed, job initiation numbering blade is 1# blades, and the ultimate range of panel to ray tube is
1180mm, calculates according to 1.33 times of optical magnifications, and adjustment workpiece is at ray tube 885mm；Determine ray most
Whole transmitting illumination parameter be thickness area high pressure 225kV, the μ A of electric current 800,3 μm of focus；Thin area's high pressure 160kV, the μ A of electric current 1000,2 μm of focus；
The number of revolutions of conical scan workpiece 800 times, 0.45 ° of each anglec of rotation.
Claims (1)
1. a kind of lossless detection method of carbon fibre composite multiple-blade integral rotor, it is characterised in that：Using following steps：
A, by the blade on integral rotor by marker number clockwise or counterclockwise；B, penetrated according to size Selection X of tested part
The apparatus of coordinate detecting of line three, switches on power and is preheated；C, adjustment workpiece orientation make irradiation of its tested position in beam
Within the scope of and the range of receiving of receiving panel within, and by workpiece Base Serial Number blade just to receiving panel direction, as
The datum mark of workpiece rotation；D, according to best magnification formulaCalculate best magnification, MoFor optimal
Multiplication factor, UDFor the inherent unsharpness of image receptive panel, Φ is ray source focus size；Then according to formula
Workpiece is calculated to ray tube distance, f is workpiece to ray tube distance, MoFor best magnification, F is receiving panel to ray tube
Distance, finally by calculated data point reuse receiving panel to ray tube distance and workpiece to ray tube distance；e、X
The apparatus of coordinate detecting of ray three is input into after calculated best magnification and diameter of work and calculates automatically in X-axis and Y-axis
Workpiece segmentation position in both direction；F, constantly regulate transmitting illumination parameter and the Black-White observed at workpiece image different-thickness,
Determine the transmitting illumination parameter in Ji Bao areas of ray Hou areas；G, workpiece is removed into detection range, carried out using Hou areas transmitting illumination parameter
Transillumination；H, the transmitting illumination parameter in Ji Bao areas of Hou areas and workpiece segmentation position input and are confirmed the apparatus of coordinate detecting of X-ray three；
I, the apparatus of coordinate detecting scan mode of X-ray three is set as conical scan, workpiece number of revolutions=π/4 × panel pixel size,
The each anglec of rotation=360 °/workpiece number of revolutions；J, high pressure key is pressed, start transillumination scanning, system is while scanning pair
The information for collecting 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 figures, it can be seen that the defect and 3D distribution situations of inside workpiece, now can choose as needed
Arbitrary section carries out cutting, and the accurate measurement of defects assessment and flaw size is carried out in the 2D plans that cutting is obtained, with
This judges whether part is qualified.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106645223A true CN106645223A (en) | 2017-05-10 |
| CN106645223B CN106645223B (en) | 2019-03-15 |
Family
ID=58825135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611148646.XA Active CN106645223B (en) | 2016-12-13 | 2016-12-13 | A kind of lossless detection method of carbon fibre composite multiple-blade integral rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106645223B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229080A (en) * | 2018-03-26 | 2018-06-29 | 西安交通大学 | The optimization method in unknown-model gas turbine blades digital radial subregion transillumination direction |
| CN112730470A (en) * | 2020-12-24 | 2021-04-30 | 中国航发南方工业有限公司 | Method for determining transillumination angle of machining defect of blade tail edge hole in X-ray detection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060056585A1 (en) * | 2004-09-16 | 2006-03-16 | The Boeing Company | X-ray laminography inspection system and method |
| 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 |
-
2016
- 2016-12-13 CN CN201611148646.XA patent/CN106645223B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060056585A1 (en) * | 2004-09-16 | 2006-03-16 | The Boeing Company | X-ray laminography inspection system and method |
| 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 |
|---|
| 周正干 等: "基于多幅X射线数字图像的缺陷自动识别技术", 《机械工程学报》 * |
| 周正干 等: "航空发动机叶片X射线数字图像分析的一种新方法", 《中国机械工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229080A (en) * | 2018-03-26 | 2018-06-29 | 西安交通大学 | The optimization method in unknown-model gas turbine blades digital radial subregion transillumination direction |
| CN112730470A (en) * | 2020-12-24 | 2021-04-30 | 中国航发南方工业有限公司 | Method for determining transillumination angle of machining defect of blade tail edge hole in X-ray detection |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106645223B (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hassen et al. | Non-destructive investigation of thermoplastic reinforced composites | |
| CN104655658B (en) | A kind of large high-temperature blade interior defect three dimensional lossless detection method | |
| CN108844978B (en) | Novel method for detecting internal defects of honeycomb | |
| JP2011012678A (en) | Method to inspect blade | |
| CN103234990A (en) | New non-destructive detection method for morphology and distribution of pores in welding seam | |
| CN104897698A (en) | Method for three-dimensional representation of stratified structure micrometer CT imaging of turbine blade heat barrier coating | |
| Krolczyk et al. | Topographic inspection as a method of weld joint diagnostic | |
| CN108627440A (en) | A kind of composite material porosity test device and method | |
| Wallentine et al. | A study on ground truth data for impact damaged polymer matrix composites | |
| EP3631358B1 (en) | Dual scan method for detecting a fibre misalignment in an elongated structure | |
| CN105092616B (en) | Industry CT detects medium and small minutia dimension measurement method | |
| JP2007309685A (en) | Inspection device and method | |
| CN110686614B (en) | Detection device and detection method for depth information of subsurface defect of optical element | |
| CN107132271A (en) | Structure light and magneto-optic imaging double-sensing appearance of weld and defect lossless detection method | |
| CN107505340A (en) | A kind of ceramics authentication method | |
| Pejryd et al. | Computed tomography as a tool for examining surface integrity in drilled holes in CFRP composites | |
| CN106645223A (en) | Nondestructive testing method of carbon fiber composite multi-blade integral rotor | |
| Kourra et al. | Metrological study of CFRP drilled holes with x-ray computed tomography | |
| Jung et al. | PAUT-based defect detection method for submarine pressure hulls | |
| CN110196287A (en) | The test block and method of drilling edge delamination defect analysis for composite material work piece | |
| CN105738475A (en) | Detection method of internal defects of thin-gauge cold rolled steel plates for automobiles | |
| Schumacher et al. | Defect recognition in CFRP components using various NDT methods within a smart manufacturing process | |
| CN109030626A (en) | A kind of detection method of stainless steel composite weld | |
| EP2295963B1 (en) | Method and apparatus for determining the knot-to-volume ratio of wooden planks | |
| Li et al. | 3D detection of internal defects for gas turbine blades |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |