CN115780348A - Water jet assisted laser cleaning method for surface of fan blade - Google Patents
Water jet assisted laser cleaning method for surface of fan blade Download PDFInfo
- Publication number
- CN115780348A CN115780348A CN202211285642.1A CN202211285642A CN115780348A CN 115780348 A CN115780348 A CN 115780348A CN 202211285642 A CN202211285642 A CN 202211285642A CN 115780348 A CN115780348 A CN 115780348A
- Authority
- CN
- China
- Prior art keywords
- water jet
- laser
- laser cleaning
- cleaning
- fan blade
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000006378 damage Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000003763 carbonization Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000012876 topography Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 241000256626 Pterygota <winged insects> Species 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a water jet assisted laser cleaning method for the surface of a fan blade, which comprises the following steps: moving the laser cleaning system, and moving the local area to be cleaned of the fan blade to the vicinity of the laser focus of the laser cleaning system; setting processing parameters of a laser cleaning system and parameters of a water jet system according to the shape and the material characteristics of an area to be cleaned; and starting the water jet system and then starting the laser cleaning system to clean the area to be cleaned on the surface of the fan blade until the cleaning is finished. According to the invention, water jet flow is used for assisting laser cleaning, and the cooling effect of the water jet flow is utilized, so that the rapid heat dissipation of a cleaning area is realized, the accumulation of laser cleaning heat is avoided, and the carbonization generated by laser cleaning and the damage to a fan blade substrate are reduced; meanwhile, carbide and sediment generated by laser cleaning are removed through the water jet cleaning effect, the surface quality of the laser cleaning is improved, and the cleaning efficiency is high.
Description
Technical Field
The invention relates to the field of laser processing, in particular to a water jet assisted laser cleaning method for the surface of a fan blade.
Background
The operation environment of the fan blade for cleaning and deicing is extremely severe, and the fan blade is often influenced by a series of wind, sand, birds, oil stains, winged insects, acid rain, salt fog, ice, snow and the like, so that various indexes of moisture resistance, corrosion resistance, radiation resistance and the like on the surface of the fan blade are reduced. Therefore, the fan blade needs to be periodically inspected to repair the local surface.
At present, the repair of the fan blade usually needs to remove a paint putty layer containing reinforcing fibers on the surface of the blade through manual or mechanical grinding, and then repair a blade matrix (usually thermosetting plastic) through glue and the like. Because blade repair needs to be carried out in the high-altitude environment, the putty layer also contains high-density reinforcing fibers, the automation degree and the efficiency of polishing are low, and the labor intensity is high.
Disclosure of Invention
Laser cleaning has the characteristics of no grinding, no contact and wide application range, and is considered to be the most reliable and effective solution. Meanwhile, the laser cleaning can solve the problem which cannot be solved by adopting the traditional cleaning mode. Consequently, wash the laser and use and have better sight in fan blade washs, but fan blade base member material melting point is low, and laser washs the damage that leads to fan blade easily. In view of the above, the invention provides a water jet assisted laser cleaning method for the surface of a fan blade, which is capable of remarkably improving the cleaning efficiency of the surface of the fan blade by assisting laser cleaning with water jet, avoiding the accident of damage of the fan blade caused by laser cleaning, and is simple in operation and low in cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a water jet assisted laser cleaning method for the surface of a fan blade comprises the following steps:
a. moving the laser cleaning system, and moving the local area to be cleaned of the fan blade to the vicinity of a laser focus of the laser cleaning system;
b. setting processing parameters of a laser cleaning system and parameters of a water jet system according to the shape and material characteristics of an area to be cleaned;
c. and starting the water jet system and then starting the laser cleaning system to clean the area to be cleaned on the surface of the fan blade until the cleaning is finished.
The laser cleaning system disclosed by the invention can be realized by adopting a conventional nanosecond pulse laser, the water jet system can be realized by adopting conventional automatic water jet cleaning equipment, and the water jet system can be simply assembled and can be installed on the laser cleaning system. The laser cleaning is carried out from top to bottom along the inclination direction of the blade, so that the water jet flows to a cleaning area under the action of gravity.
Preferably, the laser cleaning system comprises a handheld laser cleaning system, a robot laser cleaning system and a laser cleaning system carried on the unmanned aerial vehicle;
preferably, the vicinity of the laser focus refers to the cleaning area within +/-10 mm of the laser focus;
preferably, the processing parameters of the laser cleaning system are as follows: the average power of nanosecond laser is 50-500W, the repetition frequency of laser pulse is 1-70kHz, the pulse width of laser is 1-500ns, the diameter of light spot is 20-500 μm, the cleaning step length is 10-400 μm, the scanning speed is 100-1500mm/s, and the scanning times are 1-8 times.
Preferably, the processing parameters of the water jet system are as follows: the angle of the water jet and the reverse direction of the laser cleaning form 20-80 degrees, the diameter of the water jet is 1-5mm, the water flow is 0.2-3L/min, the scanning speed of the water jet is 20-300mm/s, the scanning step length is (laser scanning speed/water jet scanning speed) multiplied by the scanning speed of the laser beam, and the concrete of the water jet scanning line and the laser beam scanning line is ensured to be basically unchanged. The distance between the water jet scanning line and the laser beam scanning line is 10-50mm. By adopting the laser cleaning and water jet flow auxiliary parameters, the surface damage is avoided while the material is rapidly removed.
Compared with the prior art, the invention has the advantages that:
1. the putty layer is removed before the fan blade is repaired through laser cleaning, so that the processing efficiency and the automation degree are improved, and the cost is reduced;
2. the cooling effect that the water jet is continuously sprayed to a laser cleaning area is utilized through assisting laser cleaning by the water jet, so that the accumulation of laser cleaning heat is avoided, and the carbonization generated by laser cleaning and the damage to a fan blade substrate are reduced;
3. through the water jet cleaning effect, carbide and sediment generated by laser cleaning are removed, and the surface quality of the laser cleaning is improved.
Drawings
FIG. 1 is a schematic diagram of a water jet assisted laser cleaning method for the surface of a fan blade.
FIG. 2 is a macro photograph of a sample of a fan blade to be repaired.
FIG. 3 shows the macro topography of the surface of a fan blade after water jet assisted laser cleaning in the examples.
FIG. 4 shows the macroscopic topography of the surface of the fan blade after laser cleaning in the comparative example.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Examples
A water jet assisted laser cleaning method for the surface of a fan blade comprises the following steps:
(1) Taking a fan blade sample, and moving a region to be cleaned of the sample to be close to a laser focus of a nanosecond pulse laser provided with a water jet system;
(2) Setting the average power of nanosecond laser to be 60W, the repetition frequency of laser pulses to be 55kHz and the pulse width of the laser to be 24ns; the diameter of a light spot is 30 mu m, the cleaning step length is 50 mu m, and the scanning speed is 800mm/s; the number of scanning times is 4; setting the angle of the water jet to be 50 degrees with the reverse direction of laser cleaning, wherein the water jet is a round hole with the diameter of 2mm, the water flow is 0.5L/min, the scanning speed of the water jet is 20mm/s, the scanning step length is 2mm, and the distance between the scanning line of the water jet and the scanning line of the laser beam is 20mm.
(3) And starting the water jet system, and then starting the nanosecond pulse laser to enable the water jet to move step by step along the laser cleaning direction in cooperation with the laser beam until the laser cleaning is finished.
The blade surface topography before laser cleaning is shown in figure 2. After being cleaned by the method in example 1, the macro topography of the cleaning area is shown in fig. 3, and as can be seen from fig. 3, the surface carbonization of the cleaning area of the fan blade is less, the matrix thermosetting resin material has no obvious damage, and the surface of the fan blade can be repaired after the basic post-treatment.
Comparative example
Compared with the examples, the comparative example is different in that the water jet system is turned off during the laser cleaning process, and other steps are the same as the examples.
And (3) cleaning the blade by only adopting laser in the comparative example, wherein the surface appearance of the blade after laser cleaning is shown in figure 4, the cleaning area is obviously carbonized, and after a surface carbonized layer is removed, the heat accumulation is found to cause obvious thermal damage to the matrix of the fan blade.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (5)
1. A water jet assisted laser cleaning method for the surface of a fan blade is characterized in that: the method comprises the following steps:
a. moving the laser cleaning system, and moving the local area to be cleaned of the fan blade to the vicinity of the laser focus of the laser cleaning system;
b. setting processing parameters of a laser cleaning system and parameters of a water jet system according to the shape and material characteristics of an area to be cleaned;
c. and starting the water jet system and then starting the laser cleaning system to clean the area to be cleaned on the surface of the fan blade until the cleaning is finished.
2. The method for laser cleaning of the surface of a fan blade assisted by a water jet according to claim 1, characterized in that: the laser cleaning system is a nanosecond pulse laser; the water jet system is an automatic water jet cleaning device.
3. The method for laser cleaning of the surface of a fan blade assisted by a water jet according to claim 1, characterized in that: the vicinity of the laser focus means that the area to be cleaned is positioned within +/-10 mm of the laser focus.
4. The method for laser cleaning of the surface of a fan blade assisted by a water jet according to claim 1, characterized in that: the processing parameters of the laser cleaning system are as follows: the average power of the laser is 50-500W, the repetition frequency of the laser pulse is 1-70kHz, the pulse width of the laser is 1-500ns, the diameter of a light spot is 20-500 mu m, the cleaning step length is 10-400 mu m, the scanning speed is 100-1500mm/s, and the scanning times are 1-8 times.
5. The method for laser cleaning of the surface of a fan blade assisted by a water jet according to claim 1, characterized in that: the parameters of the water jet system are as follows: the angle of the water jet and the reverse direction of the laser cleaning form 20-80 degrees, the diameter of the water jet is 1-5mm, the water flow is 0.2-3L/min, the scanning speed of the water jet is 20-300mm/s, and the scanning step length is (laser scanning speed/water jet scanning speed) multiplied by the laser beam scanning speed; the distance between the water jet scanning line and the laser beam scanning line is 10-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211285642.1A CN115780348A (en) | 2022-10-20 | 2022-10-20 | Water jet assisted laser cleaning method for surface of fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211285642.1A CN115780348A (en) | 2022-10-20 | 2022-10-20 | Water jet assisted laser cleaning method for surface of fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115780348A true CN115780348A (en) | 2023-03-14 |
Family
ID=85433288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211285642.1A Pending CN115780348A (en) | 2022-10-20 | 2022-10-20 | Water jet assisted laser cleaning method for surface of fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115780348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571489A (en) * | 2023-05-25 | 2023-08-11 | 北京金轮坤天特种机械有限公司 | High-pressure water jet cleaning method for environmental sediment on surface of thermal barrier coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526091A (en) * | 2018-04-12 | 2018-09-14 | 桂林电子科技大学 | A kind of jet stream laser compound cleaning method and cleaning system |
| CN109092802A (en) * | 2018-08-06 | 2018-12-28 | 山东大学 | A kind of minimizing technology of scrap hard alloy surface covering |
| CN111230309A (en) * | 2020-02-20 | 2020-06-05 | 中国航空制造技术研究院 | Novel coating cleaning method |
| CN112547697A (en) * | 2020-12-03 | 2021-03-26 | 江苏大学 | Laser cleaning device and method suitable for automatic streamlined airplane blade |
| WO2021239617A1 (en) * | 2020-05-25 | 2021-12-02 | Woodrow Scientific Limited | Laser cleaning apparatus and method |
| CN113843221A (en) * | 2021-08-27 | 2021-12-28 | 大连透平机械技术发展有限公司 | Method for removing high-temperature oxidation color of centrifugal compressor impeller |
-
2022
- 2022-10-20 CN CN202211285642.1A patent/CN115780348A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526091A (en) * | 2018-04-12 | 2018-09-14 | 桂林电子科技大学 | A kind of jet stream laser compound cleaning method and cleaning system |
| CN109092802A (en) * | 2018-08-06 | 2018-12-28 | 山东大学 | A kind of minimizing technology of scrap hard alloy surface covering |
| CN111230309A (en) * | 2020-02-20 | 2020-06-05 | 中国航空制造技术研究院 | Novel coating cleaning method |
| WO2021239617A1 (en) * | 2020-05-25 | 2021-12-02 | Woodrow Scientific Limited | Laser cleaning apparatus and method |
| CN112547697A (en) * | 2020-12-03 | 2021-03-26 | 江苏大学 | Laser cleaning device and method suitable for automatic streamlined airplane blade |
| CN113843221A (en) * | 2021-08-27 | 2021-12-28 | 大连透平机械技术发展有限公司 | Method for removing high-temperature oxidation color of centrifugal compressor impeller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571489A (en) * | 2023-05-25 | 2023-08-11 | 北京金轮坤天特种机械有限公司 | High-pressure water jet cleaning method for environmental sediment on surface of thermal barrier coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110508563B (en) | Method for protecting surface anodic oxide film of aluminum alloy matrix in process of laser cleaning of coating layer of matrix | |
| CN107695040B (en) | Laser cleaning system and method | |
| CN115780348A (en) | Water jet assisted laser cleaning method for surface of fan blade | |
| CN1817549A (en) | Portable laser cleaning system | |
| CN110560431A (en) | method for removing aircraft skin surface coating by laser | |
| CN107876501A (en) | A kind of compound cleaning method and device | |
| CN108406090B (en) | High-energy short pulse laser processing method for removing stealth coating on metal surface | |
| CN110385313A (en) | High power laser light cleaning system based on laser array and bundling optical fiber | |
| CN106607410A (en) | A cleaning device and a method for performing pre-welding laser cleaning for composite gears | |
| CN109590288B (en) | Method for cleaning impurities on transmission surface of light-transmitting medium by laser | |
| CN105057882B (en) | A kind of laser means for removing body of a motor car paint | |
| CN108971142A (en) | The method of laser cleaning body surface pollution layer | |
| CN105946798A (en) | Car and windscreen wiper | |
| CN107695533A (en) | Laser cutting method | |
| CN210827063U (en) | Road marking device for urban road traffic | |
| CN210439202U (en) | Laser cleaning vehicle for urban road | |
| CN213163572U (en) | Laser cleaning welding trolley | |
| CN106480850A (en) | Laser pavement deicer | |
| CN205706605U (en) | Windscreen wiper bar | |
| DE10005341A1 (en) | Cleaning and de-icing device for pane surfaces, especially for pane surfaces or mirror surfaces in vehicles has oscillation generator via which liquid, dirt and ice are to be removed | |
| KR20170005532A (en) | Device for removing snow | |
| CN104908717A (en) | Cleaning device | |
| CN214189594U (en) | Windscreen wiper for removing frost and snow of automobile | |
| CN116005591A (en) | Method, device and apparatus for cleaning airport runway, storage medium and electronic apparatus | |
| CN112317377A (en) | Portable high-efficient paint removing equipment |
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 |