CN117305578A - Closed laser shock enhanced water constraint layer application device and method - Google Patents
Closed laser shock enhanced water constraint layer application device and method Download PDFInfo
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- CN117305578A CN117305578A CN202311293466.0A CN202311293466A CN117305578A CN 117305578 A CN117305578 A CN 117305578A CN 202311293466 A CN202311293466 A CN 202311293466A CN 117305578 A CN117305578 A CN 117305578A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 230000035939 shock Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000002955 isolation Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000008367 deionised water Substances 0.000 claims abstract description 22
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005728 strengthening Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 69
- 230000008569 process Effects 0.000 description 6
- 239000007769 metal material Substances 0.000 description 5
- 239000011241 protective layer Substances 0.000 description 5
- 238000007639 printing Methods 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000003058 plasma substitute Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
- C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a closed laser shock peening water constraint layer applying device, which comprises a structure closing module, an angle adjusting module and a water constraint layer applying module; the structure sealing module comprises a shell and a deformation cover, wherein the rear end of the deformation cover is fixedly arranged on the shell, the opening and closing angle of the front end of the deformation cover is adjustable, the shell and the deformation cover form an isolation cavity with an opening at the front side and an adjustable opening and closing angle, and the rear side is sealed; the angle adjusting module is arranged on the shell and used for adjusting the opening and closing angle of the deformation cover; the water constraint layer application module comprises a water suction pump for conveying deionized water into the isolation cavity and a vacuum pump for pumping the deionized water out of the isolation cavity; the invention also discloses a closed laser shock peening water constraint layer application method based on the closed laser shock peening water constraint layer application device; the whole device and the method have the characteristics of simple principle, strong operability, controllable water flow, wide structural applicability, good engineering practicability and the like.
Description
Technical Field
The invention belongs to the technical field of laser shock peening, and relates to a closed laser shock peening water constraint layer application device and method.
Background
The Laser shock strengthening technology (Laser ShockPeening, LSP) is a surface plastic strengthening technology, and is characterized in that high-voltage (GPa level) plasma shock waves are generated by interaction of short-pulse (nanosecond level, even picosecond/femtosecond level) and high-power (GW level) lasers with substances, and the surface layer of a metal material is subjected to plastic deformation by utilizing the mechanical effect of the shock waves to form residual compressive stress and microstructure improvement, so that the performances of fatigue resistance, abrasion resistance, stress corrosion resistance and the like of the material are remarkably improved.
The laser shock strengthening technology consists of pulse laser, a light absorption protective layer (commonly used black adhesive tape), a transparent restraint layer (commonly used water curtain), a metal material/workpiece and the like; the absorption protective layer is attached to the surface of the metal material/workpiece, and the absorption protective layer has the main functions of absorbing laser energy and protecting the metal material/workpiece from being ablated by laser; the restraint layer is applied on the absorption protection layer, and the main functions are to restrain the plasma expansion process and remarkably improve the pressure amplitude of the impact waves born by the metal material/workpiece. The basic physical process of laser shock reinforcement is that pulse laser irradiates on an absorption protective layer through a transparent constraint layer, laser energy is absorbed by the absorption protective layer, explosive vaporization and evaporation are carried out to form high-temperature high-pressure plasma, the plasma continues to absorb the laser energy to expand, high-pressure shock waves which are transmitted into a material are formed under the action of the constraint layer, and plastic deformation can be caused when the pressure of the shock waves is higher than the dynamic yield limit of the material.
Main bearing structures in the aircraft such as a bulkhead and a truss are easy to generate fatigue crack faults under the action of a severe fatigue load spectrum in the service process, and particularly the service life of the structure is influenced and even the flight safety is threatened for a military aircraft. The fatigue weak part of the main bearing structure is pretreated by utilizing laser shock peening, so that the effects of improving the fatigue strength and prolonging the service life can be achieved. However, structures such as a bulkhead and a truss are positioned in an aircraft and even belong to a compartment, an oil tank and the like, and the laser shock strengthens water flow commonly used in a constraint layer, but the problems that a water layer flows, splashes, is difficult to clean thoroughly and even affects the use function of a related compartment often exist based on the characteristics of the water flow.
In order to solve the above problems, a controllable, accurate and rapid water constraint layer application method device and application method are urgently needed.
Disclosure of Invention
In view of the above, the present invention provides a device and a method for applying a closed laser shock reinforced water confinement layer, wherein a structure sealing module of the device can provide an isolation cavity with an opening at the front side, an adjustable opening and closing angle and a closed rear side, and can apply the water confinement layer on an internal structure of an aircraft while ensuring that water flows can not flow out controllably and adapt to the to-be-treated parts with different curvatures, so as to solve the problems presented in the prior art.
The invention discloses a closed laser shock peening water constraint layer applying device, comprising:
the structure sealing module comprises a shell and a deformation cover, wherein the rear end of the deformation cover is fixedly arranged on the shell, the opening and closing angle of the front end of the deformation cover is adjustable, the shell and the deformation cover form an isolation cavity with an opening at the front side and an adjustable opening and closing angle, and the rear side is sealed;
the angle adjusting module is arranged on the shell and used for adjusting the opening and closing angle of the deformation cover.
The water constraint layer application module comprises a water suction pump for conveying deionized water into the isolation cavity and a vacuum pump for pumping the deionized water out of the isolation cavity.
Further, still include the optics regulation and control module, the structure seals the module and still includes the printing opacity baffle, the printing opacity baffle sets up in the isolation cavity, and will the isolation cavity separates into water constraint layer chamber and optical mirror chamber, the optics regulation and control module is including transmission optical cable, focusing mirror and optics mirror that shakes, the outside that the transmission optical cable has the casing passes the casing and extend to the optical mirror chamber and be used for emitting laser, focusing mirror and optics mirror that shakes are along the transmission direction of laser in proper order and coaxial setting.
Further, the water constraint layer applying module further comprises an inlet valve and a water inlet pipe, the water suction pump is communicated with the water constraint layer cavity through the water inlet pipe so as to convey deionized water into the water constraint layer cavity, and the inlet valve is arranged on the water inlet pipe and used for controlling on-off of the water inlet pipe.
Further, the water constraint layer applying module further comprises an outlet valve and a water outlet pipe, the vacuum pump is communicated with the water constraint layer cavity through the water outlet pipe so as to pump out deionized water in the water constraint layer cavity, and the outlet valve is arranged on the water outlet pipe and used for controlling on-off of the water outlet pipe.
Further, the structure sealing module further comprises a fixing assembly used for fixing the shell at a set position, the fixing assembly comprises a fixing rod and a fixing sucker, the length of the fixing rod is adjustable, the fixing rod is installed on the shell, and the fixing sucker is installed at the tail end of the fixing rod.
Further, a sealing ring for improving the sealing performance and a handle convenient to hold are arranged on the periphery of the shell.
Further, the angle adjusting module is composed of a plurality of telescopic rods, each telescopic rod is provided with a fixed end and a driving end, the fixed ends are mounted on the shell, the driving ends are mounted on the periphery of the front end of the deformation cover, and the telescopic rods are respectively telescopic to change the opening and closing angles of the front end of the deformation cover.
The invention also discloses a closed laser shock peening water constraint layer application method based on the closed laser shock peening water constraint layer application device, which specifically comprises the following steps:
s1: confirming the position of a part to be treated, and adjusting the deformation cover through the angle adjusting module to enable the front side of the isolation cavity to be conformal with the part to be treated;
s2: pressing the shell through the handle to enable the fixed sucker and the sealing ring to be attached to the surface of the part to be treated;
s3: opening an inlet valve and a water suction pump, feeding deionized water into the water restriction layer cavity through the water suction pump, and filling the water restriction layer cavity to form a water restriction layer;
s4: connecting a transmission optical cable to laser shock strengthening equipment, irradiating pulse laser generated by the laser shock strengthening equipment on the surface of a part to be treated through a transmission optical fiber, a focusing light mirror, an optical vibrating mirror, a light-transmitting partition plate and a water constraint layer, and adjusting the optical vibrating mirror in real time to carry out laser shock strengthening on the part to be treated;
s5: after the laser shock reinforcement is completed, an outlet valve and a vacuum pump are opened, and the vacuum pump rapidly discharges deionized water in the water confinement layer cavity.
In S1, an absorption protection layer is disposed on the surface of the portion to be treated.
In S4, the light-transmitting separator is light-transmitting glass.
The invention has the beneficial effects that:
the invention discloses a closed type laser shock peening water constraint layer application device and a method, wherein a structure closing module is completely attached to the surface of a part to be treated, so that closed type application of the water constraint layer is realized; the optical regulation and control module is arranged so as to facilitate laser impact; the rapid application and removal of the water constraint layer are realized through a water suction pump and a vacuum pump; the invention realizes the rapid application of the water constraint layer and the sealing and controlling of the water flow in the laser shock strengthening process of the internal structure of the aircraft; the whole device and the method have the characteristics of simple principle, strong operability, controllable water flow, wide structural applicability, good engineering practicability and the like.
Drawings
FIG. 1 is a schematic illustration of a water curtain application according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a flow chart of the method of the present invention;
reference numerals: the large main bearing bulkhead 1 of the aircraft, the part to be treated 2, the absorption protection layer 3, the shell 4, the sealing ring 5, the handle 6, the movable laser shock reinforcement device 7, the transmission optical fiber 8, the focusing mirror 9, the optical vibrating mirror 10, the light-transmitting partition 11, the water restriction layer cavity 12, the inlet valve 13, the water pipe 14, the water suction pump 15, the vacuum pump 16, the fixing rod 17, the deformation cover 18 and the telescopic rod 19.
Detailed Description
FIG. 1 is a schematic illustration of a water curtain application according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of the structure of the present invention; FIG. 3 is a flow chart of the method of the present invention; reference numerals: the large main bearing bulkhead 1 of the aircraft, the part to be treated 2, the absorption protection layer 3, the shell 4, the sealing ring 5, the handle 6, the movable laser shock reinforcement device 7, the transmission optical fiber 8, the focusing mirror 9, the optical vibrating mirror 10, the light-transmitting partition 11, the water restriction layer cavity 12, the inlet valve 13, the water pipe 14, the water suction pump 15, the vacuum pump 16, the fixing rod 17, the deformation cover 18 and the telescopic rod 19.
It should be noted that, in the description of the present specification, the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Unless otherwise specified, the front side refers to the side closer to the site to be treated.
As shown in the figure, the invention discloses a closed laser shock peening water restraint layer application device, which comprises:
the structure sealing module comprises a shell 4 and a deformation cover 18, wherein the deformation cover 18 of the embodiment is formed by flexible tarpaulin, and the flexible tarpaulin can be subjected to adjustable multi-degree-of-freedom telescopic deformation; the rear end of the deformation cover 18 is fixedly arranged on the shell 4, the opening and closing angle of the front end of the deformation cover 18 is adjustable, the shell 4 and the deformation cover 18 form an isolation cavity with an opening at the front side and an adjustable opening and closing angle and a closed rear side, when the deformation cover is used, the opening of the isolation cavity faces a part to be treated, and the opening and closing angle is adjusted so that the periphery of the opening at the front side of the isolation cavity can be attached to the surface of the part to be treated, and then the isolation cavity forms a closed cavity structure at the part to be treated; as shown in the figure, the casing 4 is a semi-open casing structure with an unsealed upper part and a unsealed front part, the deformation cover 18 is arranged on the casing 4 and mainly seals the upper part of the casing, the opening and closing angle of the front end of the deformation cover is adjustable, and the deformation cover can better adapt to the parts 2 to be treated with different curvatures so as to ensure that the isolating cavity can completely isolate the parts 2 to be treated, thereby realizing the restraint and control of the water constraint layer. The opening and closing angle of the front end opening of the deformation cover can be adjusted by manual adjustment or a special adjusting component, and as the deformation cover is flexible tarpaulin, the deformation is easy to realize, and the deformation mode is the application of the prior art in the position, so that the deformation is not repeated. Bar(s)
And an angle adjusting module mounted on the housing 4 for adjusting the opening and closing angle of the deformation cover 18.
The water confinement layer application module includes a water pump 15 for delivering deionized water into the isolation chamber and a vacuum pump 16 for pumping deionized water out of the isolation chamber. The water is pumped into the isolation cavity through the water suction pump 15, so that the cavity is filled with deionized water, a water constraint layer is formed, and when the water constraint layer needs to be removed, the water constraint layer is pumped out by using the centrifugal pump, so that the device is convenient and efficient and has a simple structure.
In this embodiment, still include the optics regulation and control module, the structure seals the module and still includes printing opacity baffle 11, printing opacity baffle 11 sets up in the isolation chamber, and will the isolation chamber separates into water confinement layer chamber 12 and optical mirror chamber, the optics regulation and control module includes transmission optical cable, focusing mirror 9 and optics galvanometer 10, the outside that transmission optical cable has casing 4 passes casing 4 and extend to the optical mirror chamber and be used for transmitting laser, focusing mirror 9 and optics galvanometer 10 are along the transmission direction of laser in proper order and coaxial setting. The optical regulation and control module is arranged to facilitate the development of laser shock peening, and the laser shock peening can be developed by connecting a laser generating device, such as a laser emitting port of the mobile laser shock peening device 7, to a transmission optical cable in practical use. When the laser beam irradiation device is arranged, the arrangement position of the transmission optical cable is arranged in the middle of the width direction of the shell 4, so that the position 2 to be treated can be comprehensively irradiated when laser is applied to strengthen the impact.
In this embodiment, the water confinement layer applying module further includes an inlet valve 13 and a water inlet pipe 14, the water pump 15 is communicated with the water confinement layer cavity 12 through the water inlet pipe 14 to deliver deionized water into the water confinement layer cavity 12, and the inlet valve 13 is mounted on the water inlet pipe 14 to control on-off of the water inlet pipe 14. In this embodiment, the water confinement layer applying module further includes an outlet valve and an outlet pipe 14, the vacuum pump 16 is communicated with the water confinement layer cavity 12 through the outlet pipe 14 to pump deionized water in the water confinement layer cavity 12, and the outlet valve is installed on the outlet pipe 14 to control on-off of the outlet pipe 14. The outlet valve and the inlet valve 13 of the embodiment are electromagnetic valves, the electromagnetic valves are quick in response and easy to control, the inlet valve 13 and the outlet valve are respectively arranged on two sides of the re-shell 4 as shown in the figure, the water inlet pipe 14 and the water outlet pipe 14 are respectively connected to the two valves, and the water inlet pipe 14 and the water outlet pipe 14 of the embodiment are water pipes 14 with the same pipe diameter, so that the later installation and use are facilitated.
In this embodiment, the structural sealing module further includes a fixing component for fixing the housing 4 at a set position, the fixing component includes a fixing rod 17 and a fixing suction cup, the length of the fixing rod 17 is adjustable, the fixing rod 17 is mounted on the housing 4, and the fixing suction cup is mounted at the end of the fixing rod 17. As shown in the figure, the fixing rod 17 has an L-shaped structure, and the fixing sucker at the tail end of the fixing rod can be adsorbed on the surface of the part 2 to be treated, so that the fixing of the shell 4 at the set position, namely the position to be treated in the embodiment, is realized. The length of the fixing rod 17 is adjustable to accommodate components of different configurations and shapes. The fixing assembly can be provided with a plurality of groups simultaneously so as to ensure that the shell 4 can be fixedly arranged at the position to be treated when the water constraint layer is applied and the laser reinforced impact is carried out.
In this embodiment, the periphery of the housing 4 is further provided with a sealing ring 5 for improving the sealing property and a handle 6 for facilitating the holding.
In this embodiment, the angle adjusting module is composed of a plurality of telescopic rods 19, the telescopic rods 19 have a fixed end and a driving end, the fixed end is mounted on the housing 4, the driving end is mounted on the periphery of the front end of the deformation cover 18, and the telescopic rods 19 are respectively telescopic to change the opening and closing angles of the front end of the deformation cover 18. The telescopic rods 19 have different telescopic amounts, so that the telescopic rods can be adjusted to the opening and closing angles required by design.
In this embodiment, the large main bearing bulkhead 1 of the aircraft is taken as an implementation object, and a closed type laser shock strengthening water constraint layer application method is developed and described, and the method is based on the closed type laser shock strengthening water constraint layer application device.
The upper corner position of the large main bearing bulkhead 1 of the aircraft is easy to generate fatigue crack fault, and because the position is positioned in the aircraft, the water constraint layer is easy to flow everywhere in the laser shock strengthening process, and is difficult to control, so that the function use of the bulkhead 1 of the aircraft is affected; the raw material of the bulkhead 1 is TC4 titanium alloy, the curvature R of the upper corner of the bulkhead 1 is 5mm, and the above is the background of the embodiment.
The closed laser shock peening water constraint layer application method specifically comprises the following steps:
s1: and confirming the specific position of the part 2 to be treated at the top corner part of the large-scale bulkhead 1 in the aircraft, and sticking a 3M black adhesive tape serving as an absorption protection layer 3 to the corner R area. According to the spatial characteristics of the peripheral structure of the top corner of the bulkhead 1, the front opening and closing angle of the deformation cover 18 is adjusted through the angle adjusting module, so that the front side of the isolation cavity is in shape with the part 2 to be treated;
s2: the structure sealing module is pressed to the corner part at the top of the bulkhead 1 by holding the handle 6, so that the whole structure sealing module is opposite to the corner area, namely the part 2 to be treated, to which the black tape is attached, and the length adjusting knob on the fixing assembly is adjusted, so that the sucker on the auxiliary fixing device is completely adsorbed on the part to be treated, and the fit and the tightness of the device are enhanced; pressing the shell 4 through the handle 6 to enable the fixed sucker and the sealing ring 5 to be attached to the surface of the part 2 to be treated;
s3: the inlet valve 13 and the water suction pump 15 are opened, deionized water is fed into the water confinement layer cavity 12 through the water suction pump 15 and fills the water confinement layer cavity 12 to form a water confinement layer, and the deionized water fills the whole water confinement layer cavity 12 to form the water confinement layer, so that smooth propagation of pulse laser in the water confinement layer cavity 12 is ensured.
S4: connecting the transmission optical cable to the mobile laser shock peening device 7, starting the mobile laser shock peening device 7, and setting the laser shock peening process parameters as: wavelength 1064nm, pulse width 20ns, pulse energy 6J, spot size 3mm, laser power density 4.24GW/cm 2 Pulse laser generated by the mobile laser shock peening equipment 7 is irradiated on the surface of the part 2 to be treated after passing through the transmission optical fiber 8, the focusing optical mirror 9, the optical galvanometer 10, the light-transmitting partition plate 11 and the water constraint layer, and the optical galvanometer 10 is adjusted in real time to carry out laser shock peening surface treatment on the part to be treated; the laser shock reinforcement of the pulse laser to the whole area to be treated is realized by controlling the deflection of the optical vibrating mirror 10, and the overlapping rate of the light spots is controlled to be 50%; the deflection of the optical vibrating mirror 10 is referred to herein in the prior art and will not be described in detail herein.
S5: after the laser shock peening is completed, the outlet valve and the vacuum pump 16 are opened, and the vacuum pump 16 rapidly discharges deionized water in the water confinement layer chamber 12 out of the water confinement layer chamber 12.
If the area to be treated is large and cannot be treated all at once, the shell 4 is moved, and S1-S5 are repeated until all the parts to be treated are reinforced completely.
In this embodiment, in S1, the surface of the portion to be treated 2 is covered with an absorption protection layer 3. The application or non-application of the absorbent protection layer may be determined according to the actual need, and when the absorbent protection layer 3 is provided, it is necessary to complete the application and inspection of the absorbent protection layer 3 of the entire portion 2 to be treated before the step S1.
In this embodiment, in S4, the light-transmitting partition 11 is light-transmitting glass.
In this embodiment, a controller is further provided for controlling the devices of the present invention, such as opening and closing of the inlet valve 13 and the outlet valve, starting and stopping of the water pump 15 and the vacuum pump 16, and deflection of the optical vibrating mirror 10, which can be connected to the controller, and even the control of the laser shock enhancement device can be connected to the controller, so as to realize centralized control, and facilitate operation and use, which is referred to herein in the prior art and is not described herein.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a closed laser shock peening water restraint layer applys device which characterized in that: comprising the following steps:
the structure sealing module comprises a shell and a deformation cover, wherein the rear end of the deformation cover is fixedly arranged on the shell, the opening and closing angle of the front end of the deformation cover is adjustable, the shell and the deformation cover form an isolation cavity with an opening at the front side and an adjustable opening and closing angle, and the rear side is sealed;
the angle adjusting module is arranged on the shell and used for adjusting the opening and closing angle of the deformation cover;
the water constraint layer application module comprises a water suction pump for conveying deionized water into the isolation cavity and a vacuum pump for pumping the deionized water out of the isolation cavity.
2. The closed type laser shock peening water constraint layer applying apparatus according to claim 1, wherein: the structure sealing module further comprises a light-transmitting partition plate, the light-transmitting partition plate is arranged in the isolation cavity and divides the isolation cavity into a water constraint layer cavity and an optical mirror cavity, the light-transmitting structure sealing module comprises a transmission optical cable, a focusing optical mirror and an optical vibrating mirror, the outside of the transmission optical cable, which is provided with a shell, penetrates through the shell and extends to the optical mirror cavity to be used for emitting laser, and the focusing optical mirror and the optical vibrating mirror are sequentially and coaxially arranged along the transmission direction of the laser.
3. The closed type laser shock peening water constraint layer applying apparatus according to claim 2, wherein: the water restraint layer applying module further comprises an inlet valve and a water inlet pipe, the water suction pump is communicated with the water restraint layer cavity through the water inlet pipe so as to convey deionized water into the water restraint layer cavity, and the inlet valve is arranged on the water inlet pipe and used for controlling on-off of the water inlet pipe.
4. The closed type laser shock peening water constraint layer applying apparatus according to claim 2, wherein: the water constraint layer applying module further comprises an outlet valve and a water outlet pipe, the vacuum pump is communicated with the water constraint layer cavity through the water outlet pipe so as to pump out deionized water in the water constraint layer cavity, and the outlet valve is arranged on the water outlet pipe and used for controlling on-off of the water outlet pipe.
5. The closed type laser shock peening water constraint layer applying apparatus according to claim 1, wherein: the structure sealing module further comprises a fixing assembly used for fixing the shell at a set position, the fixing assembly comprises a fixing rod and a fixing sucker, the length of the fixing rod is adjustable, the fixing rod is installed on the shell, and the fixing sucker is installed at the tail end of the fixing rod.
6. The closed type laser shock peening water constraint layer applying apparatus according to claim 1, wherein: the periphery of the shell is also provided with a sealing ring for improving the sealing performance and a handle convenient to hold.
7. The closed type laser shock peening water constraint layer applying apparatus according to claim 1, wherein: the angle adjusting module is composed of a plurality of telescopic rods, each telescopic rod is provided with a fixed end and a driving end, the fixed ends are mounted on the shell, the driving ends are mounted on the periphery of the front end of the deformation cover, and the telescopic rods are respectively telescopic to change the opening and closing angles of the front end of the deformation cover.
8. A closed laser shock peening water confinement layer application method based on the closed laser shock peening water confinement layer application apparatus of any one of claims 1 to 7, characterized in that: the method specifically comprises the following steps:
s1: confirming the position of a part to be treated, and adjusting the deformation cover through the angle adjusting module to enable the front side of the isolation cavity to be conformal with the part to be treated;
s2: pressing the shell through the handle to enable the fixed sucker and the sealing ring to be attached to the surface of the part to be treated;
s3: opening an inlet valve and a water suction pump, feeding deionized water into the water restriction layer cavity through the water suction pump, and filling the water restriction layer cavity to form a water restriction layer;
s4: connecting a transmission optical cable to laser shock strengthening equipment, irradiating pulse laser generated by the laser shock strengthening equipment on the surface of a part to be treated through a transmission optical fiber, a focusing light mirror, an optical vibrating mirror, a light-transmitting partition plate and a water constraint layer, and adjusting the optical vibrating mirror in real time to carry out laser shock strengthening on the part to be treated;
s5: after the laser shock reinforcement is completed, an outlet valve and a vacuum pump are opened, and the vacuum pump rapidly discharges deionized water in the water confinement layer cavity.
9. The method for applying a closed type laser shock peening water constraint layer according to claim 8, wherein: in S1, an absorption protection layer is covered on the surface of the part to be treated.
10. The method for applying a closed type laser shock peening water constraint layer according to claim 8, wherein: s4, the light-transmitting partition board is light-transmitting glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311293466.0A CN117305578A (en) | 2023-10-09 | 2023-10-09 | Closed laser shock enhanced water constraint layer application device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311293466.0A CN117305578A (en) | 2023-10-09 | 2023-10-09 | Closed laser shock enhanced water constraint layer application device and method |
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| Publication Number | Publication Date |
|---|---|
| CN117305578A true CN117305578A (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311293466.0A Pending CN117305578A (en) | 2023-10-09 | 2023-10-09 | Closed laser shock enhanced water constraint layer application device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117305578A (en) |
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2023
- 2023-10-09 CN CN202311293466.0A patent/CN117305578A/en active Pending
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