CN110117712A - The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress - Google Patents
The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress Download PDFInfo
- Publication number
- CN110117712A CN110117712A CN201910386436.1A CN201910386436A CN110117712A CN 110117712 A CN110117712 A CN 110117712A CN 201910386436 A CN201910386436 A CN 201910386436A CN 110117712 A CN110117712 A CN 110117712A
- Authority
- CN
- China
- Prior art keywords
- controled
- regulated
- component
- ultrasonic transducer
- residual stress
- 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
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
This application involves material property studying technological domain more particularly to the method and device thereof of a kind of cavitation impact abatement and homogenizing component surface residual stress.Stress value including detecting and recording the position to be regulated and controled of component to be regulated and controled；Component to be regulated and controled is placed in the internal container equipped with fluid liquid medium, and immerses position to be regulated and controled into fluid liquid medium；Ultrasonic transducer and amplitude transformer are opened, and the working frequency for controlling ultrasonic transducer sets the estimated regulation time within the scope of 10-30kHz, and according to the stress value size at position to be regulated and controled；The estimated regulation time is reached, ultrasonic transducer and the amplitude transformer are closed, takes out the component to be regulated and controled from container；Step S1 to step S4 is repeated at least once, until stress value no longer changes.Method and device provided herein solves the problems, such as to carry out the surface of high-precision tooling member, labyrinth component, thin-wall construction component and weak separation component the abatement and homogenizing of residual stress.
Description
Technical field
This application involves material property studying technological domain more particularly to a kind of cavitation impact abatements and homogenizing component surface
The method and device thereof of residual stress.
Background technique
Workpiece can be on its surface and internal generation during machining, casting, welding, cold working, heat treatment etc.
Stress, for structure is complicated, high-precision processing, thin-walled, weak separation etc. component for, Yin Qibiao is understood in later period use process
The release of the residual stress in face and deform even crack, to influence its precision and normal use.Therefore, the control of stress for
Structure is complicated, high-precision processing, thin-walled, weak separation etc. component for be very important.Common residual stress abatement side
Method has natrual ageing method, oscillation time-effect method, heat aging method (heat treatment) and contact high energy acoustic beam control method etc.,
In, although natrual ageing method is simple time-consuming too long, efficiency is lower；Oscillation time-effect method generates component altogether by vibration excitor
Shake so that the residual stress of component inside be able to relaxation and mitigate, but due to high-precision processing component, labyrinth structure
The different reason poor with the rigidity of thin-wall construction component frangibility and weak separation component of part shape, this method is to operator
Technical level require higher, technological parameter setting is complicated, instead can be because abnormal total if impacting point and parameter setting are improper
Vibration mode causes component to form cycle facigue, or even damage, therefore this method is not suitable for labyrinth component and rigidity is lower
Component；Heat aging method, i.e. annealing heat-treatment, it is past if technological parameter selection is improper in heating, heat preservation and temperature-fall period
The past effect that abatement stress is not achieved, or even will increase stress deformation instead；Contact high energy acoustic beam control method is also not suitable for
The component of high-precision processing, the component of labyrinth and thin-wall construction, weak separation, if because this method is to high-precision, complicated knot
The component of structure is regulated and controled, and needs to design its dedicated sound voussoir to couple, and such cost of manufacture is higher, for thin-wall construction,
The energy field of weak separation component, the high energy acoustic beam of transmitting is excessive, reaches several hundred megapascal, will lead to the thin-wall construction or weak separation
Component it is destructurized.
Summary of the invention
This application provides the method and device thereof of a kind of cavitation impact abatement and homogenizing component surface residual stress, with solution
Residual stress certainly is carried out to the surface of high-precision tooling member, labyrinth component, thin-wall construction component and weak separation component
The problem of abatement and homogenizing, precision and stability to improve the component.
The application first aspect provides the method for a kind of cavitation impact abatement and homogenizing component surface residual stress, packet
It includes:
Step S1, detection and record component to be regulated and controled position to be regulated and controled stress value；
Step S2, the component to be regulated and controled is placed in the internal container equipped with fluid liquid medium, and made described wait adjust
Control position is immersed into the fluid liquid medium；
Step S3, it opens ultrasonic transducer and one end is electrically connected with the ultrasonic transducer, the other end is immersed to institute
It states in fluid liquid medium and towards the amplitude transformer of the position setting to be regulated and controled, and controls the work of the ultrasonic transducer
Frequency sets estimated adjust within the scope of 10~30kHz, and according to the stress value size at the position to be regulated and controled of the component to be regulated and controled
Control the time；
Step S4, the estimated regulation time is reached, the ultrasonic transducer and the amplitude transformer are closed, from the appearance
The component to be regulated and controled is taken out in device；
Step S5, repeating said steps S1 to the step S4 at least once, until the stress value no longer changes.
The method of provided herein cavitation impact abatement and homogenizing component surface residual stress is by component to be regulated and controled
Position to be regulated and controled as fluid liquid medium among, and ultrasonic transducer and amplitude transformer are opened, among fluid liquid medium
It is passed through ultrasonic wave, and the ultrasonic emission port of amplitude transformer is arranged towards the position to be regulated and controled of component to be regulated and controled, and makes the ultrasonic wave side of having
The direct projection of tropism is in wait regulate and control in the liquid regions between portion faces, and method provided herein is using ultrasonic wave in liquid
Cavitation phenomenon in body is passed through ultrasonic wave in the case where guaranteeing that the working frequency of ultrasonic wave is within the scope of 10~30kHz, surpasses
Sound wave acoustic pressure makes liquid internal molecular vibration, when acoustic pressure reaches certain value, forms a large amount of cavitation bubbles, these cavitation bubbles hair
The raw dynamic process shattered to pieces by the subsequent rapid closing of nascent-development-, can generate when these cavitation bubble rapid closings are vanished
Micro laser wave makes part have very big pressure, these micro laser waves are ultimately applied to the surface at position to be regulated and controled, and to its surface
Residual stress is cut down and is homogenized, and when these cavitation bubbles crumble and fall be contracted to minimum dimension start rebound when can also produce
Raw shock wave, this shock wave have bigger pressure compared with micro laser wave above-mentioned, these shock waves are equally ultimately applied to
The surface at position to be regulated and controled, and the residual stress on its surface is cut down and is homogenized.Micro laser wave and surge waveform above-mentioned at
Powerful pressure field, common impact act on the surface at position to be regulated and controled, and in its surface generation direct stress and shear stress, and with
The residual stress on its surface is superimposed, when the stress of superposition meets or exceeds the yield limit wait regulate and control component, component to be regulated and controled
Portion faces to be regulated and controled microcosmic plastic deformation will occur, thus enable portion faces to be regulated and controled residual stress cut down and
Homogenizing, until the stress value at the position to be regulated and controled of the component to be regulated and controled drops to until tending to balance.
This micro laser wave, shock wave can be with percussions to the surface of any shape and structure component, whether simple rule
The component of shape and structure or the component of high-precision processing, labyrinth shape are all suitable for.Further more, this micro laser wave, shock wave
The intensity of the pressure field of generation is high generally in thirty or forty megapascal or so, far smaller than existing contact high energy acoustic beam control method
The energy field intensity for the up to megapascal up to a hundred that energy acoustic beam generates, the pressure field of this intensity rank provided by the embodiments of the present application can
While to guarantee that the residual stress of component surface is able to cut down and be homogenized, thin-wall construction component and weak separation structure structure are not damaged
Part guarantees its non-destructive, integrality.Method provided herein solve to high-precision tooling member, labyrinth component,
The surface of thin-wall construction component and weak separation component carries out the abatement and homogenizing of residual stress, to improve the precision of the component and steady
Qualitative problem.Further more, according to the stress value size at the position to be regulated and controled of component to be regulated and controled and experience setting estimated regulation time,
Guarantee that the estimated regulation time is accurate as far as possible, and then reduces repetition to the greatest extent and component is put into the number for continuing regulation in container, it can
To effectively prevent component to generate fatigue effect, to prolong its service life.
It further, further include step S31 before the step S4, to open heating device, in the container
The fluid liquid medium is continuously applied temperature of the range between 35-45 DEG C；
It further include step S41 after the step S4, to close the heating device.
Being heated to temperature appropriate to fluid liquid medium can be improved its intracorporal vapour pressure, reduce cavitation threshold, increase
Add its unstability, it is easier to generate cavitation phenomenon；And the volume of cavitation bubble can also be increased, obtain the micro- of bigger pressure
Shock wave and shock wave improve abatement and homo-effect so that the surface at position to be regulated and controled be made to generate the stress response of higher intensity；
The energy transmission loss of ultrasonic wave can also be reduced simultaneously, to improve component surface residual stress abatement and homogenizing effect to be regulated and controled
Rate.
Further, the container uses hermetic type pressure vessel.
This closed pressure vessel can be effectively ensured the intensity of pressure in container, guarantee that pressure is not revealed, if especially with
When pressurizing device is used in combination, closed pressure vessel is more used, can guarantee the realization fluid liquid medium of high quality in this way
The effect of optimization for rear part surface residual stress abatement and the homogenizing of pressurizeing.
It further, further include step S32 before the step S4, to open pressurizing device, in the container
The fluid liquid medium be continuously applied low pressure of the range between 0.1-1 megapascal；
It further include step S42 after the step S4, to close the pressurizing device.
A degree of low pressure is applied to fluid liquid medium, its intracorporal pressure can be improved, reduces cavitation threshold, is increased
Add its unstability, makes it easier to generate cavitation phenomenon；And the volume of cavitation bubble can also be increased, obtain bigger pressure
Micro laser wave and shock wave, thus make position to be regulated and controled surface generate higher intensity stress response, improve abatement and homogenizing
Effect；The energy transmission loss of ultrasonic wave can also be reduced simultaneously, thus improve component surface residual stress to be regulated and controled abatement and
Homogenization efficiency.
Further, the fluid liquid medium selects degassing distilled water or pure water.
Because degassing distilled water and pure water all have the spy that the coefficient of viscosity is smaller, solubility is lower and dissolved gas is less
Point has the characteristics that this fluid liquid medium can be relatively easy to generation cavitation phenomenon, can also improve cavitation intensity.
Further, piezoelectric material device, the mangneto that can inspire high energy elastic wave are equipped in the ultrasonic transducer
Any one in elastic wave device and photo elasticity wave device.
This high energy elastic wave, with the higher sound intensity, can increase greatly for the ultrasonic wave of regular tenacity
The attainable maximum radius volume of big cavitation bubble, and micro laser wave and shock wave by a larger margin is obtained, to make structure to be regulated and controled
Part surface generates the stress response of higher intensity, to improve abatement and homogenizing ability.
The application second aspect provides the device of a kind of cavitation impact abatement and homogenizing component surface residual stress, application
In aforementioned described in any item methods, the device include: the internal container equipped with fluid liquid medium, ultrasonic transducer and
One end is electrically connected with the ultrasonic transducer, the other end is immersed into the fluid liquid medium and towards component to be regulated and controled
The amplitude transformer of position setting to be regulated and controled.
Device provided herein solve to high-precision tooling member, labyrinth component, thin-wall construction component and
The problem of surface of weak separation component carries out the abatement and homogenizing of residual stress, precision and stability to improve the component.
Further, the amplitude transformer is towards the one end at the position to be regulated and controled between the surface at the position to be regulated and controled
There are spacing, the spacing range is between 50-150mm.
Spacing control can make the maximum amount of cavitation bubble vanish on the surface at position to be regulated and controled within this range, in this way
Most effective, maximum can be vanished the micro laser wave and shock wave that release using cavitation gas, to cut down to the greatest extent and
It is homogenized the residual stress of component surface.
Further, the amplitude transformer is the round estrade structure that upper surface diameter is less than lower end surface diameter.
The area of transmitting ultrasonic wave can be expanded in this way, further quickly to spread the energy of ultrasonic wave, existed to increase
The energy for the ultrasonic wave launched in the same time, with the abatement of the more efficient residual stress for completing component surface to be regulated and controled and
It is homogenized work.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
Fig. 1 is the stream of the method for the impact of cavitation provided by the embodiment of the present application abatement and homogenizing component surface residual stress
Cheng Tu；
Fig. 2 is the apparatus structure of the impact of cavitation provided by the embodiment of the present application abatement and homogenizing component surface residual stress
Schematic diagram；
Fig. 3 is the structural schematic diagram of aluminium alloy plate weld seam provided by the embodiment of the present application；
Fig. 4 is abatement residual stress front and back at each monitoring point of top weld seam of aluminium alloy plate provided by the embodiment of the present application
Residual-stress value comparison diagram；
Fig. 5 is abatement residual stress front and back at each monitoring point of following weld seam of aluminium alloy plate provided by the embodiment of the present application
Residual-stress value comparison diagram；
Fig. 6 is abatement residual stress front and back at each monitoring point of left side weld seam of aluminium alloy plate provided by the embodiment of the present application
Residual-stress value comparison diagram；
Fig. 7 is abatement residual stress front and back at each monitoring point of the right weld seam of aluminium alloy plate provided by the embodiment of the present application
Residual-stress value comparison diagram.
Appended drawing reference:
10- container；
20- fluid liquid medium；
30- ultrasonic transducer；
31- piezoelectric material device；
40- amplitude transformer；
The upper surface 41-；
The lower end surface 42-；
50- component to be regulated and controled；
The position to be regulated and controled 51-；
60- cavitation bubble；
70- aluminium alloy plate；
The top 71- weld seam；
The following weld seam of 72-；
The left side 73- weld seam；
Weld seam on the right of 74-.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Specific embodiment
The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
As depicted in figs. 1 and 2, the embodiment of the present application provides a kind of cavitation impact abatement and homogenizing component surface remnants are answered
For the methods and applications of power in the device of this method, which includes internal container 10, the ultrasonic wave that fluid liquid medium 20 is housed
Energy converter 30 and one end are electrically connected with the ultrasonic transducer 30, the other end is immersed into aforementioned liquid fluid media (medium) 20 and direction
The amplitude transformer 40 that the position to be regulated and controled 51 of component 50 to be regulated and controled is arranged, the ultrasonic transducer 30 and the amplitude transformer 40 can be upper and lower
Vertical connection setting, one end which is electrically connected with ultrasonic transducer 30 can be upper surface 41, the amplitude transformer 40
It can be lower end surface 42 towards one end of position 51 to be regulated and controled setting, the emission port which is used to emit ultrasonic wave is located at
The lower section that position 51 to be regulated and controled is located at the amplitude transformer 40 is somebody's turn to do, to facilitate the emission port of amplitude transformer 40 to launch in 42 side of lower end surface
The directive direct projection of ultrasonic wave is in a large amount of cavitation bubbles 60 for wait regulate and control in the liquid regions between portion faces, making generation
It can effectively vanish to the greatest extent on 51 surface of position to be regulated and controled, efficiently complete 51 surface residual stress of position to be regulated and controled
Abatement and homogenizing work.
Container 10 above-mentioned can be any one in pipe container, closed pressure vessel, open class container etc., preferably
Use closed pressure vessel, this closed pressure vessel can be effectively ensured the intensity of pressure in container 10, guarantee pressure not
If leakage will more use closed pressure vessel, can guarantee the realization of high quality in this way be especially used in combination with pressurizing device
The effect of optimization of the pressurization rear part surface residual stress abatement of fluid liquid medium 20 and homogenizing；And the material and shape of the container 10
Shape is also not specifically limited herein, can be metal material, is also possible to non-metallic material, as long as can be used for containing liquid stream
Body medium 20 and component to be regulated and controled 50, and destructiveness does not occur instead with fluid liquid medium 20 and component to be regulated and controled 50 and ultrasonic wave
The container 10 answered.Aforementioned liquid fluid media (medium) 20 preferably using degassing distilled water or pure water because degassing distilled water and
Pure water all has the feature that the coefficient of viscosity is smaller, solubility is lower and dissolved gas is less, has the characteristics that this liquid stream
Body medium 20 can be relatively easy to generation cavitation phenomenon, can also improve cavitation intensity.In addition to using degassing distilled water or pure
Outside water purification, other fluid liquid media 20 with aforementioned features can also be used, equally can achieve effect of optimization above-mentioned.
Further more, aforementioned ultrasonic wave transducer 30 is a kind of can to convert the high-frequency electrical energy of input to mechanical energy (i.e. ultrasonic wave) and transmit again
It goes out, and itself consumes the device of seldom a part of power, amplitude transformer 40 is a kind of passive device, itself does not generate vibration, only
It is to be passed again after the vibration that ultrasonic transducer 30 inputs is changed amplitude, completes a kind of device for increasing amplitude.It is aforementioned
Component 50 to be regulated and controled can be metal material, can also can be the component of simple rule shape and structure with non-metallic material, can also
With the component of still high-precision tooling member, labyrinth shape, the material for treating regulation component 50 herein and shape and structure are not
It limits, but preferably, method and device provided by the embodiment of the present application may be implemented to high-precision tooling member, complexity
The surface of structural elements, thin-wall construction component and weak separation component carries out the abatement and homogenizing of residual stress.
Method provided by the embodiment of the present application includes:
Step S1, detection and record component 50 to be regulated and controled position to be regulated and controled 51 stress value；
Step S2, aforementioned component 50 to be regulated and controled is placed in the internal container 10 equipped with fluid liquid medium 20, and before making
Position 51 to be regulated and controled is stated to immerse into fluid liquid medium 20；
Step S3, open ultrasonic transducer 30 and one end be electrically connected with the ultrasonic transducer 30, the other end immerse to
In aforementioned liquid fluid media (medium) 20 and towards the amplitude transformer 40 that aforementioned position 51 to be regulated and controled is arranged, and control the ultrasonic transducer
30 working frequency is set within the scope of 10-30kHz, and according to the aforementioned stress value size wait regulate and control position 51 it is expected that when regulating and controlling
Between；
Herein, the estimated regulation time can according to the stress value size at the position to be regulated and controled 51 of component 50 to be regulated and controled and to
Regulate and control the experiences such as the shape and structure of component 50 to be set, it is more more accurate better which sets, and reduces weight to the greatest extent
It is multiple that component is put into the number for continuing regulation in container, preferably number is controlled primary, component production can be effectively prevented in this way
Raw fatigue effect, to prolong its service life.
Step S4, the aforementioned estimated regulation time is reached, ultrasonic transducer 30 and amplitude transformer 40 is closed, is taken from container 10
Component 50 to be regulated and controled out；
Step S5, abovementioned steps S1 to abovementioned steps S4 is repeated at least once, until aforesaid stresses value no longer changes.
Stress value no longer changes the abatement and homogenizing work that explanation has been completed component surface residual stress.
The method of the impact of cavitation provided by the embodiment of the present application abatement and homogenizing component surface residual stress will be wait regulate and control
The position to be regulated and controled 51 of component 50 as fluid liquid medium 20 among, and open ultrasonic transducer 30 and amplitude transformer 40, to
Be passed through ultrasonic wave among fluid liquid medium 20, and the ultrasonic emission port of amplitude transformer 40 towards component 50 to be regulated and controled wait regulate and control
Position 51 is arranged, and makes the directive direct projection of ultrasonic wave in the liquid regions between 51 surface of position to be regulated and controled.The application
Method provided by embodiment utilizes the cavitation phenomenon of ultrasonic wave in a liquid, the working frequency for guaranteeing ultrasonic wave 10~
In the case where within the scope of 30kHz, it is passed through ultrasonic wave, ultrasonic wave acoustic pressure makes liquid internal molecular vibration, when acoustic pressure reaches certain value
When, a large amount of cavitation bubbles 60 are formed, these cavitation bubbles 60 occur by nascent-development-dynamics that then rapid closing is vanished
Process can generate micro laser wave when these 60 rapid closings of cavitation bubble are vanished, and part is made to have very big pressure, this swashs slightly
Wave is ultimately applied to the surface at position 51 to be regulated and controled, and the residual stress on its surface is cut down and is homogenized, and works as these
Cavitation bubble 60, which is crumbled and fall, to be contracted to minimum dimension and starts also generate shock wave when rebound, this shock wave and above-mentioned micro- is swashed
Wave is compared, and has bigger pressure, these shock waves are equally ultimately applied to the surface at position 51 to be regulated and controled, and to its surface
Residual stress is cut down and is homogenized, micro laser wave and surge waveform above-mentioned at powerful pressure field, common impact act on to
Regulate and control the surface at position 51, and generate direct stress and shear stress on its surface, and be superimposed with the residual stress on its surface, works as superposition
When stress meets or exceeds the yield limit wait regulate and control component 50,51 surface of position to be regulated and controled of component 50 to be regulated and controled will occur micro-
The plastic deformation of sight, to enable the residual stress on 51 surface of position to be regulated and controled to cut down and be homogenized, until should component be regulated and controled
The stress value at 50 position to be regulated and controled 51 drops to tend to balance until.Cavitation phenomenon above-mentioned refers in a liquid due to vortex
Or the physical actions such as ultrasonic wave, cause certain places of liquid to form the temporary negative pressuren zone of part, so as to cause liquid or liquid-
The fracture of solid interface forms a large amount of small cavitation bubbles 60, these cavitation bubbles 60 are in unsteady state, in acoustic pressure
When acoustic pressure reaches certain value the dynamic process shattered to pieces by the subsequent rapid closing of nascent-development-occurs for vibration under effect, when
These 60 rapid closings of cavitation bubble can generate micro laser wave when vanishing, and so that part is had very big pressure, and work as these cavitations
Bubble 60 crumble and fall be contracted to minimum dimension start rebound when can also generate shock wave, this shock wave and micro laser wave phase above-mentioned
Than there is bigger pressure, the micro laser wave and the surge waveform are at powerful pressure field.
Compared with prior art, micro laser wave, the shock wave of the generation of method provided by the embodiment of the present application can impact work
The surface of arbitrary shape structural elements is used, whether the component of simple rule shape and structure or high-precision processing, complicated knot
The component of configuration shape is all suitable for.Further more, the intensity for the pressure field that this micro laser wave, shock wave generate is generally left in thirty or forty megapascal
The right side, the Field strength for up to several hundred megapascal that high energy acoustic beam generates in far smaller than existing contact high energy acoustic beam control method
Degree, the pressure field of this intensity rank provided by the embodiments of the present application can guarantee that the residual stress of component surface to be regulated and controled is able to
While abatement and homogenizing, thin-wall construction component and weak separation structural elements are not damaged, guarantees its non-destructive, integrality.This Shen
It method please solve to high-precision tooling member, labyrinth component, thin-wall construction component and weak separation provided by embodiment
The problem of surface of component carries out the abatement and homogenizing of residual stress, precision and stability to improve the component.Further more, according to
Stress value size and experience the setting estimated regulation time at the position to be regulated and controled of component to be regulated and controled guarantee that the estimated regulation time is most
Amount precisely, and then reduces repetition to the greatest extent and component is put into the number for continuing regulation in container, and it is tired that component generation can be effectively prevented
Labor effect, to prolong its service life.
As shown in fig. 3 to 7, it is a kind of specific embodiment provided by the present application, is with component 50 to be regulated and controled for aluminium alloy plate
The experiment carried out for 70, and the position to be regulated and controled of aluminium alloy plate 70 is shown by the punching of cavitation provided by the embodiment of the present application
After hitting abatement and being homogenized the method regulation of component surface residual stress, the corresponding forward and backward residual-stress value pair in multiple monitoring points
Than figure, the position to be regulated and controled of the aluminium alloy plate 70 is its weld seam position, specifically includes top weld seam 71, following weld seam 72, the left side
Weld seam 73 and the right weld seam 74, aforementioned comparison's figure are respectively multiple prisons of multiple monitoring points of top weld seam 71, following weld seam 72
Residual-stress value before and after the corresponding regulation of multiple monitoring points of measuring point, multiple monitoring points of left side weld seam 73 and the right weld seam 74
Comparison diagram can be clearly understood that its stronger disappears by the comparison of the variation of the stress value before and after each monitoring point in each figure
Subtract the ability of residual stress and the ability of its stronger homogenizing residual stress.The specific embodiment effectively can illustrate the application
Method provided by embodiment has the ability of preferably abatement and homogenizing component residual stress, and geometry is not advised
The abatement and homogenizing of the residual stress on 51 surface of position to be regulated and controled then have more significant effect.
A kind of preferred embodiment, device provided by the embodiment of the present application can also include heating device, and the application is real
Method provided by example is applied before abovementioned steps S4, can also include step S31, to open the heating device, and to container
Fluid liquid medium 20 in 10 is continuously applied temperature of the range between 35-45 DEG C；And after step s4, can also include
Step S41, to close the heating device.Being heated to temperature appropriate to fluid liquid medium 20 can be improved its intracorporal steam
Pressure reduces cavitation threshold, increases its unstability, it is easier to generate cavitation phenomenon；And cavitation bubble 60 can also be increased
Volume, obtains the micro laser wave and shock wave of bigger pressure, to make the stress of the surface generation higher intensity at position 51 to be regulated and controled
Response improves abatement and homo-effect；The energy transmission loss that ultrasonic wave can also be reduced simultaneously, to improve component to be regulated and controled
50 surface residual stress abatement and homogenization efficiency.
Another preferred embodiment, device provided by the embodiment of the present application can also include pressurizing device, specifically,
The container 10 uses closed pressure vessel, air inlet port can be set on the closed pressure vessel side wall, which can
To connect with the connection of the air inlet pipe of the aforementioned pressurizing device of peripheral hardware.Method provided by the embodiment of the present application before step S 4,
Range can also be continuously applied in 0.1- to the fluid liquid medium 20 in container 10 to open pressurizing device including step S32
Low pressure between 1 megapascal；It and after step s4, can also include step S42, to close pressurizing device.To fluid liquid
Medium 20 applies a degree of low pressure, its intracorporal pressure can be improved, and reduces cavitation threshold, increases its unstability, make
It is more prone to produce cavitation phenomenon；And the volume of cavitation bubble 60 can also be increased, obtain micro laser wave and the punching of bigger pressure
Wave is hit, so that the surface at position 51 to be regulated and controled be made to generate the stress response of higher intensity, improves abatement and homo-effect；Simultaneously also
It can reduce the energy transmission loss of ultrasonic wave, to improve 50 surface residual stress of component abatement to be regulated and controled and homogenization efficiency.
A kind of preferred embodiment is that can be equipped in aforementioned ultrasonic wave transducer 30 can inspire high energy elastic wave
Any one in piezoelectric material device 31, magneto-elasticity wave device and photo elasticity wave device, the piezoelectric material device 31 tool
Body can be a kind of piezoelectric ceramics.This high energy elastic wave can make the vibration amplitude of 40 lower end surface 42 of amplitude transformer be up to 40 microns,
And the amplitude of the ultrasonic wave of regular tenacity at most can achieve several microns, ultrasound of this high energy elastic wave relative to regular tenacity
For wave, with the higher sound intensity, the attainable maximum radius volume of cavitation bubble 60 can be substantially increased, and is obtained bigger
The micro laser wave and shock wave of amplitude, so that component surface to be regulated and controled be made to generate the stress response of higher intensity, with improve abatement and
Homogenizing ability.
Further, aforementioned amplitude transformer 40 is towards the one end (i.e. lower end surface 41) at position 51 to be regulated and controled to position 51 to be regulated and controled
Surface between there are spacing, the spacing can make the maximum amount of cavitation bubble 60 position 51 to be regulated and controled surface vanish, this
Sample can be most effective, maximum using the shattered to pieces micro laser wave and shock wave released of cavitation gas, to cut down to the greatest extent
And the residual stress of homogenizing component surface.A kind of specific embodiment is that the voltage of ultrasonic transducer 30 selects 200-500V,
The diameter of 40 upper surface 41 of amplitude transformer is selected as 40-70mm, then aforementioned spacing range can be very good using between 50-150mm
Reach said effect.
Further, aforementioned amplitude transformer 40 is the round estrade structure that 41 diameter of upper surface is less than 42 diameter of lower end surface, this
Sample can expand the area of transmitting ultrasonic wave, further quickly to spread the energy of ultrasonic wave, to increase within the same time
The energy for the ultrasonic wave launched, with the abatement of the more efficient residual stress for completing 50 surface of component to be regulated and controled and equal chemical industry
Make.
The foregoing is merely the preferred embodiments of the application, not to limit the application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (9)
1. a kind of method of cavitation impact abatement and homogenizing component surface residual stress characterized by comprising
Step S1, detection and record component to be regulated and controled position to be regulated and controled stress value；
Step S2, the component to be regulated and controled is placed in the internal container equipped with fluid liquid medium, and makes the portion to be regulated and controled
Position is immersed into the fluid liquid medium；
Step S3, it opens ultrasonic transducer and one end is electrically connected with the ultrasonic transducer, the other end is immersed to the liquid
In state fluid media (medium) and towards the amplitude transformer of the position setting to be regulated and controled, and control the working frequency of the ultrasonic transducer
The estimated regulation time is set within the scope of 10-30kHz, and according to the stress value size at the position to be regulated and controled；
Step S4, the estimated regulation time is reached, the ultrasonic transducer and the amplitude transformer are closed, from the container
Take out the component to be regulated and controled；
Step S5, repeating said steps S1 to the step S4 at least once, until the stress value no longer changes.
2. the method according to claim 1, wherein
It further include step S31 before the step S4, to open heating device, to the fluid liquid in the container
Medium is continuously applied temperature of the range between 35-45 DEG C；
It further include step S41 after the step S4, to close the heating device.
3. the method according to claim 1, wherein
The container uses hermetic type pressure vessel.
4. according to the method described in claim 3, it is characterized in that,
It further include step S32 before the step S4, to open pressurizing device, to the fluid liquid in the container
Medium is continuously applied low pressure of the range between 0.1-1MPa；
It further include step S42 after the step S4, to close the pressurizing device.
5. the method according to claim 1, wherein
The fluid liquid medium selects degassing distilled water or pure water.
6. the method according to claim 1, wherein
The piezoelectric material device, magneto-elasticity wave device and light that can inspire high energy elastic wave are equipped in the ultrasonic transducer
Cause any one in elastic wave device.
7. a kind of device of cavitation impact abatement and homogenizing component surface residual stress, which is characterized in that be applied to claim
In method described in any one of 1-6, comprising: inside equipped with fluid liquid medium container, ultrasonic transducer and one end with
The ultrasonic transducer electrical connection, the other end are immersed into the fluid liquid medium and towards component to be regulated and controled wait regulate and control
The amplitude transformer of position setting.
8. device according to claim 7, which is characterized in that
The amplitude transformer is described towards there are spacing between the surface at one end position to be regulated and controled described at the position to be regulated and controled
Spacing range is between 50-150mm.
9. device according to claim 7 or 8, which is characterized in that
The amplitude transformer is the round estrade structure that upper surface diameter is less than lower end surface diameter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386436.1A CN110117712A (en) | 2019-05-09 | 2019-05-09 | The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress |
| US16/796,542 US11708619B2 (en) | 2019-02-21 | 2020-02-20 | Method and device for reducing and homogenizing residual stress of a component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910386436.1A CN110117712A (en) | 2019-05-09 | 2019-05-09 | The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110117712A true CN110117712A (en) | 2019-08-13 |
Family
ID=67522104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910386436.1A Pending CN110117712A (en) | 2019-02-21 | 2019-05-09 | The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110117712A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527936A (en) * | 2019-09-24 | 2019-12-03 | 北京理工大学 | Array high energy elastic wave abatement and homogenizing component residual stress device and method |
| CN110864988A (en) * | 2019-10-23 | 2020-03-06 | 东北大学 | Device and method for researching cavitation erosion evolution process |
| CN112609067A (en) * | 2020-11-30 | 2021-04-06 | 北京理工大学 | In-situ low-stress welding method for large three-dimensional complex aluminum alloy component |
| CN114262788A (en) * | 2020-09-16 | 2022-04-01 | 北京理工大学 | Large crankshaft deformation control method |
| CN115058585A (en) * | 2022-06-28 | 2022-09-16 | 北京理工大学 | Ultrasonic cavitation impact reduction and homogenization method for residual stress of complex curved surface component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002144155A (en) * | 2000-11-14 | 2002-05-21 | Takehiko Watanabe | Method of removing residual tensile stress by application of ultrasonic vibration in liquid |
| US20050230010A1 (en) * | 2004-04-16 | 2005-10-20 | Tomonori Tominaga | Treatment method for improving fatigue life and long-life metal material treated by using same treatment |
| CN108754122A (en) * | 2018-06-27 | 2018-11-06 | 中国核工业华兴建设有限公司 | A kind of automatic ultrasonic impact elimination welding residual stress device |
| CN109628729A (en) * | 2019-02-21 | 2019-04-16 | 北京理工大学 | Closed high energy elastic wave abatement and homogenizing component residual stress device |
| CN109680141A (en) * | 2019-02-21 | 2019-04-26 | 北京理工大学 | The method of high energy elastic wave abatement and homogenizing component residual stress |
-
2019
- 2019-05-09 CN CN201910386436.1A patent/CN110117712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002144155A (en) * | 2000-11-14 | 2002-05-21 | Takehiko Watanabe | Method of removing residual tensile stress by application of ultrasonic vibration in liquid |
| US20050230010A1 (en) * | 2004-04-16 | 2005-10-20 | Tomonori Tominaga | Treatment method for improving fatigue life and long-life metal material treated by using same treatment |
| CN108754122A (en) * | 2018-06-27 | 2018-11-06 | 中国核工业华兴建设有限公司 | A kind of automatic ultrasonic impact elimination welding residual stress device |
| CN109628729A (en) * | 2019-02-21 | 2019-04-16 | 北京理工大学 | Closed high energy elastic wave abatement and homogenizing component residual stress device |
| CN109680141A (en) * | 2019-02-21 | 2019-04-26 | 北京理工大学 | The method of high energy elastic wave abatement and homogenizing component residual stress |
Non-Patent Citations (1)
| Title |
|---|
| 孙凤: "《模具制造技术基础》", 31 May 2018 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527936A (en) * | 2019-09-24 | 2019-12-03 | 北京理工大学 | Array high energy elastic wave abatement and homogenizing component residual stress device and method |
| CN110527936B (en) * | 2019-09-24 | 2020-11-10 | 北京理工大学 | Array type high-energy elastic wave reduction and homogenization component residual stress device and method |
| CN110864988A (en) * | 2019-10-23 | 2020-03-06 | 东北大学 | Device and method for researching cavitation erosion evolution process |
| CN114262788A (en) * | 2020-09-16 | 2022-04-01 | 北京理工大学 | Large crankshaft deformation control method |
| US11753696B2 (en) | 2020-09-16 | 2023-09-12 | Beijing Institute Of Technology | Method for controlling deformation of a large-scale crankshaft |
| CN112609067A (en) * | 2020-11-30 | 2021-04-06 | 北京理工大学 | In-situ low-stress welding method for large three-dimensional complex aluminum alloy component |
| CN115058585A (en) * | 2022-06-28 | 2022-09-16 | 北京理工大学 | Ultrasonic cavitation impact reduction and homogenization method for residual stress of complex curved surface component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110117712A (en) | The method and device thereof of cavitation impact abatement and homogenizing component surface residual stress | |
| US20200270712A1 (en) | Method and device for reducing and homogenizing residual stress of a component | |
| Klaseboer et al. | Interaction of lithotripter shockwaves with single inertial cavitation bubbles | |
| JP6878291B2 (en) | Surgical blade with fatigue resistance | |
| JP6470737B2 (en) | System and method for performing laser shock peening on a target having a fluid flow path sandwiched between the solid medium transparent to the laser light and the target | |
| US20140263213A1 (en) | Ultrasound-assisted water-confined laser micromachining | |
| Jamaluddin et al. | The collapse of single bubbles and approximation of the far-field acoustic emissions for cavitation induced by shock wave lithotripsy | |
| JP2005002475A5 (en) | ||
| CN110172566B (en) | Device and method for reducing and homogenizing residual stress of complex component | |
| CN110724803B (en) | Ultrasonic cavitation shot blasting method and device using same | |
| CN109680141A (en) | The method of high energy elastic wave abatement and homogenizing component residual stress | |
| Mohammadzadeh et al. | Synthetic jet generation by high-frequency cavitation | |
| US20190143471A1 (en) | Peening position control device of ultrasound inner wall peening system | |
| CN105779756B (en) | Angle of spot hole enhanced processing method | |
| Wrede et al. | Controlled positioning of microbubbles and induced cavitation using a dual-frequency transducer and microfiber adhesion techniques | |
| Peacocke et al. | Some biophysical aspects of ultrasound | |
| Tang et al. | Ring-focusing Fresnel acoustic lens for long depth-of-focus focused ultrasound with multiple trapping zones | |
| Iloreta et al. | Dynamics of bubbles near a rigid surface subjected to a lithotripter shock wave. Part 1. Consequences of interference between incident and reflected waves | |
| Xu et al. | Particle removal by a single cavitation bubble | |
| Reuter et al. | Nonspherical collapse of single bubbles near boundaries and in confined spaces | |
| KR101869022B1 (en) | Apparatus for controling peening position in ultrasonic internal surface peenigin system | |
| US9115417B2 (en) | Liquid drop peening method and apparatus therefor | |
| Shervani-Tabar et al. | Numerical study on the hydrodynamic behavior of the dielectric fluid around an electrical discharge generated bubble in EDM | |
| Abu-Rahmeh et al. | The effect of water temperature and flow rate on cavitation growth in conduits | |
| CN115058585A (en) | Ultrasonic cavitation impact reduction and homogenization method for residual stress of complex curved surface component |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190813 |
|
| RJ01 | Rejection of invention patent application after publication |