CN116732299A - Induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere - Google Patents
Induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere Download PDFInfo
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- CN116732299A CN116732299A CN202310653568.2A CN202310653568A CN116732299A CN 116732299 A CN116732299 A CN 116732299A CN 202310653568 A CN202310653568 A CN 202310653568A CN 116732299 A CN116732299 A CN 116732299A
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- 230000006698 induction Effects 0.000 title claims abstract description 80
- 238000010438 heat treatment Methods 0.000 title claims abstract description 64
- 238000005728 strengthening Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 238000012360 testing method Methods 0.000 claims abstract description 75
- 239000011261 inert gas Substances 0.000 claims description 18
- 230000002787 reinforcement Effects 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
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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
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- 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
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The application relates to an induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere, comprising the following steps: an inert ambient atmosphere chamber; the ultrasonic impact strengthening mechanism is arranged in the inert environment atmosphere chamber; the induction heating mechanism is arranged in the inert ambient atmosphere chamber and is arranged relative to the ultrasonic impact strengthening mechanism; the rotary clamping mechanism comprises a first operation part and a second operation part, the connecting line direction of the first operation part and the second operation part is the Y-axis direction, and the first operation part and the second operation part are matched for clamping the bar-shaped test piece and driving the bar-shaped test piece to rotate; and the motion control mechanism is used for controlling the movement of the ultrasonic impact strengthening mechanism and the induction heating mechanism. In addition, the application also relates to an induction heating auxiliary ultrasonic impact strengthening method in inert atmosphere, which is realized by the device. The application can heat the test piece during strengthening, simultaneously ensures that the surface of the test piece cannot have oxidation problem, ensures the processing quality, and can be used for processing materials difficult to deform.
Description
Technical Field
The application relates to the technical field of ultrasonic surface layer reinforcement, in particular to an induction heating auxiliary ultrasonic impact reinforcement device and method in inert atmosphere.
Background
The ultrasonic reinforced surface modification technology belongs to the field of anti-fatigue manufacture, and adopts the principle that the high-frequency vibration of an impact head is utilized to make the surface layer of a test piece undergo strong plastic deformation, and the structure of the grain structure of the subsurface layer is changed along with the improvement of the residual compressive stress of the surface layer. After the ultrasonic surface modification treatment is carried out on the test piece, the surface quality and the mechanical property are obviously improved, the effects of surface finishing processing and surface layer strengthening are realized, and the service life of the test piece is prolonged.
However, for materials (test pieces) difficult to deform, the traditional ultrasonic surface modification treatment effect is poor, and in order to improve the treatment effect, the existing method is to apply a heating field to the ultrasonic surface modification treatment of the test pieces, so that the test pieces generate larger strain in the range of the heating field, and a better strengthening effect is achieved. But carry out ultrasonic impact strengthening after applying the heating field, friction between impact head and the test piece can make the test piece top layer take place oxidation, and adopts induction heating, and the high temperature that produces can aggravate oxidation degree when ultrasonic impact strengthening, produces adverse effect to the processingquality, life and the performance of test piece.
Disclosure of Invention
The application aims to provide an induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere, which can heat a test piece during strengthening, ensure that the surface of the test piece is not oxidized, ensure the processing quality and can be used for processing materials difficult to deform.
In order to achieve the above purpose, the application adopts the following technical scheme:
an induction heating assisted ultrasonic impact strengthening device in an inert atmosphere, comprising:
an inert ambient atmosphere chamber;
the ultrasonic impact strengthening mechanism is arranged in the inert environment atmosphere chamber;
the induction heating mechanism is arranged in the inert ambient atmosphere chamber and is arranged relative to the ultrasonic impact strengthening mechanism;
the rotary clamping mechanism comprises a first operation part and a second operation part, the connecting line direction of the first operation part and the second operation part is the Y-axis direction, and the first operation part and the second operation part are matched for clamping the bar-shaped test piece and driving the bar-shaped test piece to rotate;
the motion control mechanism is arranged in the inert ambient atmosphere chamber and comprises a first Z-axis moving platform, a second Z-axis moving platform and a Y-axis moving platform, wherein the Y-axis moving platform is positioned between the first operation part and the second operation part and drives the first Z-axis moving platform and the second Z-axis moving platform to synchronously move along the Y-axis direction; the first Z-axis moving platform and the second Z-axis moving platform are respectively positioned at two sides of the rotary clamping mechanism, and the first Z-axis moving platform and the second Z-axis moving platform are oppositely arranged; the first Z-axis moving platform drives the ultrasonic impact strengthening mechanism to move along the Z-axis direction, and the second Z-axis moving platform drives the induction heating mechanism to move along the Z-axis direction.
The ultrasonic impact strengthening mechanism comprises an ultrasonic generator, a transducer, an amplitude transformer, an impact head and a pressure sensor; the energy converter is arranged on the first Z-axis moving platform, is connected with the ultrasonic generator and converts electric energy into mechanical energy; one end of the amplitude transformer is connected with the energy converter and is used for expanding mechanical energy, and the other end of the amplitude transformer is connected with the impact head; the pressure sensor is disposed between the horn and the impact head, or the pressure sensor is disposed between the horn and the transducer.
The motion control mechanism also comprises an XY-axis bidirectional moving platform; the second Z-axis moving platform drives the XY-axis bidirectional moving platform to move along the Z-axis direction, and the XY-axis bidirectional moving platform drives the induction heating mechanism to move in the X-axis direction and the Y-axis direction.
The first operation part comprises a rotary driving piece and a chuck, and the rotary driving piece drives the chuck to rotate; the second operation part comprises a thimble, and the needle tip of the thimble faces to be in a straight line with the central axis of the chuck; the chuck and the thimble are matched to clamp and fix the rod-shaped test piece.
The induction heating mechanism comprises an alternating current box and an induction coil, and the alternating current box is connected with the induction coil; the alternating transformer box is used for providing alternating current for the induction coil, and the induction coil is used for enabling the surface of the rod-shaped test piece to form eddy currents so as to generate heat energy.
The induction heating mechanism further comprises an energy collector for improving the efficiency of converting electric energy into heat energy, and the energy collector is sleeved outside the induction coil.
The induction heating mechanism further comprises a temperature sensor for detecting the temperature of the rod-shaped test piece, and the temperature sensor is connected with the alternating current box.
The induction heating device further comprises a circulating water cooling mechanism and a hollow runner, wherein the circulating water cooling mechanism is communicated with the hollow runner, and the hollow runner is arranged on the induction heating mechanism.
The inert ambient atmosphere chamber comprises a glove box, an inert gas supply and a gas detection element; the inert gas supplier is communicated with the interior of the glove box and is used for introducing inert gas into the glove box, and the gas detection element is arranged in the glove box and is used for detecting the oxygen content and the water content in the glove box; the inert gas supply is connected with the gas detection element to form a closed-loop control circuit.
The application also discloses an induction heating auxiliary ultrasonic impact strengthening method in inert atmosphere, which is realized by the induction heating auxiliary ultrasonic impact strengthening device in inert atmosphere, and comprises the following steps:
step 1: clamping and fixing the rod-shaped test piece through a rotary clamping mechanism;
step 2: introducing inert gas into the inert ambient atmosphere chamber, and ensuring that the oxygen content and the water content concentration in the inert ambient atmosphere chamber are smaller than set values;
step 3: starting an induction heating mechanism to heat the surface of the rod-shaped test piece;
step 4: after the surface of the rod-shaped test piece is heated to a set temperature, the rotary clamping mechanism drives the rod-shaped test piece to rotate at a constant speed;
step 5: the ultrasonic impact strengthening mechanism is contacted with the rod-shaped test piece, static load is applied, and then the ultrasonic impact strengthening mechanism is started;
step 6: the ultrasonic impact strengthening mechanism and the induction heating mechanism synchronously and reciprocally move along the length direction of the rod-shaped test piece at a constant speed and carry out ultrasonic impact strengthening treatment.
After the scheme is adopted, the temperature of the surface of the rod-shaped test piece is increased through the induction heating mechanism to be softened to a certain extent, so that the surface of the test piece is enabled to generate larger deformation in the ultrasonic impact strengthening treatment process, and larger residual compressive stress is introduced. Meanwhile, the temperature of the test piece is increased, and the plasticity of the test piece is also obviously improved, so that the generation of cracks on the surface of the test piece in the ultrasonic impact strengthening process can be effectively avoided. The working atmosphere with extremely low oxygen content and water content is created through the inert environment atmosphere chamber, so that the surface of the test piece is not oxidized when the test piece is heated and strengthened, the performance of the reinforced test piece is better improved, the processing quality is ensured, and the method can be used for processing materials difficult to deform.
Drawings
FIG. 1 is a schematic diagram of the present application.
FIG. 2 is a schematic view of the present application with the inert ambient atmosphere chamber hidden.
Fig. 3 is a schematic diagram of an induction heating mechanism.
Marking:
a glove box 11, an inert gas supply 12;
a first operation part 21, a second operation part 22, a chuck 23, and a thimble 24;
a Y-axis moving platform 31, a first Z-axis moving platform 32, a second Z-axis moving platform 33, and an XY-axis bidirectional moving platform 34;
an ultrasonic impact reinforcement mechanism 40, a transducer 41, an amplitude transformer 42, a pressure sensor 43, an impact head 44;
an induction heating mechanism 50, an alternating current box 51, an induction coil 52, and a concentrator 53;
a hollow flow passage 61;
a rod-shaped test piece 70.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the application product is used, or the orientation or positional relationship conventionally understood by those skilled in the art is merely for convenience of describing the present application and simplifying the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1-3, the present application discloses an induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere, comprising: an inert ambient atmosphere chamber, an ultrasonic impact reinforcement mechanism 40, an induction heating mechanism 50, a rotary clamping mechanism and a motion control mechanism. To facilitate automated control, a controller may be provided to centrally manage and control the operation of the mechanisms described above.
The inert atmosphere chamber comprises a glove box 11, an inert gas supplier 12 and a gas detection element the inert gas supplier 12 is communicated with the interior of the glove box 11 and is used for introducing inert gas into the glove box 11 to create an inert gas atmosphere, so that the oxygen content and the water content of air in the glove box 11 are reduced. The gas detecting element is disposed in the glove box 11 for detecting the oxygen content and the water content in the glove box 11. The inert gas supply 12 may be an argon bottle or other, and the inert gas supply 12 may be connected with a gas detection element to form a closed loop control circuit, so as to ensure that the oxygen content and the water content in the glove box 11 are maintained at an extremely low level during the strengthening process.
The rotary clamping mechanism is placed in the inert atmosphere chamber and comprises a first operation part 21 and a second operation part 22, the connecting line direction of the first operation part 21 and the second operation part 22 is the Y-axis direction, and the first operation part 21 and the second operation part 22 are matched to clamp the rod-shaped test piece 70 and drive the rod-shaped test piece to rotate. As a preferred embodiment, the first operating portion 21 includes a rotation driving member and a chuck 23, the chuck 23 is a three-jaw chuck 23, and the rotation driving member is a motor which drives the chuck 23 to rotate. The second operation portion 22 includes a thimble 24 and a displacement member (for example, a manual screw driver, which is a conventional match for the thimble 24 and will not be described again) for pushing the thimble 24 to move relative to the chuck 23, and the tip of the thimble 24 faces a center axis of the chuck 23 in a straight line, and the chuck 23 and the thimble 24 cooperate to clamp and fix the rod-shaped test piece 70 and can drive the plate-shaped test piece to rotate.
The motion control mechanism is placed in an inert atmosphere chamber and comprises a first Z-axis moving platform 32, a second Z-axis moving platform 33, a Y-axis moving platform 31 and an XY-axis bidirectional moving platform 34. The Y-axis moving stage 31 is located between the first operating portion 21 and the second operating portion 22, and drives the first Z-axis moving stage 32 and the second Z-axis moving stage 33 to move in the Y-axis direction in synchronization. The first Z-axis moving platform 32 and the second Z-axis moving platform 33 are respectively located at two sides of the rotary clamping mechanism, and the first Z-axis moving platform 32 and the second Z-axis moving platform 33 are oppositely arranged. The first Z-axis moving platform 32 drives the ultrasonic impact strengthening mechanism 40 to move along the Z-axis direction, the second Z-axis moving platform 33 drives the XY-axis bi-directional moving platform 34 to move along the Z-axis direction, and the XY-axis bi-directional moving platform 34 drives the induction heating mechanism 50 to move along the X-axis and the Y-axis directions. The first Z-axis moving platform 32, the second Z-axis moving platform 33 and the Y-axis moving platform 31 are all motor-based linear moving modules, and the XY-axis bidirectional moving platform 34 is a combination of two sets of motor-based linear moving modules, which are all of the prior art and are not described in detail in this case. In order to improve the movement control precision, the mobile platform can be further provided with a distance measuring tool such as a grating ruler-reading head, and the grating ruler can be read through the reading head, so that the movement positioning precision can be ensured to reach 1 mu m.
The ultrasonic impact reinforcement mechanism 40 includes an ultrasonic generator, a transducer 41, a horn 42, an impact head 44, and a pressure sensor 43. The ultrasonic generator is used for providing high-frequency alternating current signals, and the ultrasonic generator can be arranged on the first Z-axis moving platform 32 or can be independently arranged, and the ultrasonic generator is preferably arranged on the first Z-axis moving platform, so that the simple arrangement of the working platform is facilitated. The transducer 41 is mounted on the mobile pair of the first Z-axis moving stage 32, and the transducer 41 is connected to an ultrasonic generator and converts electric energy into mechanical energy. One end of the amplitude transformer 42 is connected with the transducer 41, the other end of the amplitude transformer 42 is connected with the impact head 44, and the amplitude transformer 42 is used for expanding mechanical energy output by the transducer 41. The impact head 44 is preferably a cemented carbide ball with a diameter equal to 8-15mm, even more preferably 10mm. The impact head 44 provides high frequency vibrations whose frequency and amplitude are controlled by the amount of electrical energy provided by the ultrasonic generator. The pressure sensor 43 is arranged between the amplitude transformer 42 and the impact head 44, or the pressure sensor 43 is arranged between the amplitude transformer 42 and the transducer 41, the pressure sensor 43 can measure the force values in three mutually orthogonal directions in real time, the measuring range is-2 kN, and the natural frequency is higher than 50kHz. The pressure sensor 43 can monitor the magnitude and direction of the impact force value in the ultrasonic impact strengthening process in real time, ensure that the impact force value is stable and the impact head 44 is always perpendicular to the surface of the test piece, and avoid adverse effects such as tangential force generated by the change of the contact included angle between the impact head 44 and the surface of the test piece.
The induction heating mechanism 50 is arranged opposite to the ultrasonic impact strengthening mechanism 40, and comprises an energy collector 53, an alternating current box 51, an induction coil 52 and a temperature sensor, wherein the alternating current box 51 is connected with the induction coil 52 to provide alternating current for the induction coil, the alternating current flowing through the induction coil 52 generates an alternating magnetic field, when the rod-shaped test piece 70 approaches to the alternating magnetic field, the induction current can form a closed loop along the rod-shaped test piece 70, and the closed loop is called eddy current. The eddy current can convert electric energy into heat energy, so that the surface of the workpiece is rapidly heated. The eddy current is mainly distributed on the surface of the workpiece, and almost no current exists inside the workpiece. The energy collector 53 is sleeved outside the induction coil 52, so that the efficiency of converting electric energy into heat energy is improved, specifically, the energy collector 53 is a magnet, firstly, alternating current forms an induction magnetic field through the induction coil 52, and an induction circuit is formed with the surface of a test piece again after the induction magnetic field passes through the magnet, so that secondary energy collection output is realized, and the electric heat conversion efficiency is improved. The induction heating temperature of the surface of the test piece can be controlled by adjusting the alternating current of the coil, and the heating temperature and the heat affected zone can be regulated and controlled more accurately. When the induction coil 52 heats the surface of the rod-shaped test piece 70, the temperature sensor can detect the surface temperature of the rod-shaped test piece 70 in real time, data fed back by the temperature sensor is transmitted to the controller or the alternating current box 51, the controller or the alternating current box 51 adjusts the alternating current passing through the induction coil 52 to automatically compensate the temperature, and the temperature of a heating area on the surface of the test piece is ensured to be in a stable state during ultrasonic impact reinforcement.
In addition, in order to further regulate and control the heating temperature and avoid the heating source from affecting the parts of the equipment in the vicinity, a circulating water cooling mechanism and a hollow runner 61 are further provided, the circulating water cooling mechanism is communicated with the hollow runner 61, and the hollow runner 61 is provided on the induction heating mechanism 50. The circulating water cooling mechanism is used for controllably introducing cooling liquid into the hollow flow channel 61, and is not described in detail.
The application also discloses an induction heating auxiliary ultrasonic impact strengthening method in inert atmosphere, which is realized by the induction heating auxiliary ultrasonic impact strengthening device in inert atmosphere, and comprises the following steps:
step 1: the rod-shaped test piece 70 is clamped and fixed by the rotary clamping mechanism so that the center line of the rod-shaped test piece 70, the center of the impact head 44, and the center of the concentrator 53 are at the same height on the X axis.
Step 2: and (3) introducing inert gas (argon) into the inert ambient atmosphere chamber, and detecting by a gas detection element to ensure that the oxygen content and the water content concentration in the inert ambient atmosphere chamber are both less than 0.1ppm.
Step 3: the center of the concentrator 53 is set to be 1-3mm away from the surface of the rod-shaped test piece 70, and the induction heating mechanism 50 is turned on to heat the surface of the rod-shaped test piece 70.
Step 4: after the surface of the rod-shaped test piece 70 is heated to a set temperature, the temperature is maintained for about 10 minutes, and then the rotary clamping mechanism drives the rod-shaped test piece 70 to rotate at a constant speed.
Step 5: the ultrasonic impact reinforcement mechanism 40 is moved to be in contact with the rod-like test piece 70 and apply a static load, and then the ultrasonic impact reinforcement mechanism 40 is activated.
Step 6: the ultrasonic impact strengthening mechanism 40 and the induction heating mechanism 50 reciprocate synchronously and at a constant speed along the longitudinal direction of the rod-shaped test piece 70 and perform ultrasonic impact strengthening treatment.
The key point of the application is that the induction heating mechanism 50 is used for raising the surface temperature of the rod-shaped test piece 70 to soften to a certain extent, so that the surface of the test piece is facilitated to deform more in the ultrasonic impact strengthening treatment process, and thus, more residual compressive stress is introduced. Meanwhile, the temperature of the test piece is increased, and the plasticity of the test piece is also obviously improved, so that the generation of cracks on the surface of the test piece in the ultrasonic impact strengthening process can be effectively avoided. The working atmosphere with extremely low oxygen content and water content is created through the inert environment atmosphere chamber, so that the surface of the test piece is not oxidized when the test piece is heated and strengthened, the performance of the reinforced test piece is better improved, the processing quality is ensured, and the method can be used for processing materials difficult to deform.
In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The foregoing embodiments of the present application are not intended to limit the technical scope of the present application, and therefore, any minor modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present application still fall within the scope of the technical proposal of the present application.
Claims (10)
1. An induction heating assisted ultrasonic impact strengthening device in an inert atmosphere, comprising:
an inert ambient atmosphere chamber;
the ultrasonic impact strengthening mechanism is arranged in the inert environment atmosphere chamber;
the induction heating mechanism is arranged in the inert ambient atmosphere chamber and is arranged relative to the ultrasonic impact strengthening mechanism;
the rotary clamping mechanism comprises a first operation part and a second operation part, the connecting line direction of the first operation part and the second operation part is the Y-axis direction, and the first operation part and the second operation part are matched for clamping the bar-shaped test piece and driving the bar-shaped test piece to rotate;
the motion control mechanism is arranged in the inert ambient atmosphere chamber and comprises a first Z-axis moving platform, a second Z-axis moving platform and a Y-axis moving platform, wherein the Y-axis moving platform is positioned between the first operation part and the second operation part and drives the first Z-axis moving platform and the second Z-axis moving platform to synchronously move along the Y-axis direction; the first Z-axis moving platform and the second Z-axis moving platform are respectively positioned at two sides of the rotary clamping mechanism, and the first Z-axis moving platform and the second Z-axis moving platform are oppositely arranged; the first Z-axis moving platform drives the ultrasonic impact strengthening mechanism to move along the Z-axis direction, and the second Z-axis moving platform drives the induction heating mechanism to move along the Z-axis direction.
2. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the ultrasonic impact strengthening mechanism comprises an ultrasonic generator, a transducer, an amplitude transformer, an impact head and a pressure sensor; the energy converter is arranged on the first Z-axis moving platform, is connected with the ultrasonic generator and converts electric energy into mechanical energy; one end of the amplitude transformer is connected with the energy converter and is used for expanding mechanical energy, and the other end of the amplitude transformer is connected with the impact head; the pressure sensor is disposed between the horn and the impact head, or the pressure sensor is disposed between the horn and the transducer.
3. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the motion control mechanism also comprises an XY-axis bidirectional moving platform; the second Z-axis moving platform drives the XY-axis bidirectional moving platform to move along the Z-axis direction, and the XY-axis bidirectional moving platform drives the induction heating mechanism to move in the X-axis direction and the Y-axis direction.
4. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the first operation part comprises a rotary driving piece and a chuck, and the rotary driving piece drives the chuck to rotate; the second operation part comprises a thimble, and the needle tip of the thimble faces to be in a straight line with the central axis of the chuck; the chuck and the thimble are matched to clamp and fix the rod-shaped test piece.
5. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the induction heating mechanism comprises an alternating current box and an induction coil, and the alternating current box is connected with the induction coil; the alternating transformer box is used for providing alternating current for the induction coil, and the induction coil is used for enabling the surface of the rod-shaped test piece to form eddy currents so as to generate heat energy.
6. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 5, wherein: the induction heating mechanism further comprises an energy collector for improving the efficiency of converting electric energy into heat energy, and the energy collector is sleeved outside the induction coil.
7. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 5, wherein: the induction heating mechanism further comprises a temperature sensor for detecting the temperature of the rod-shaped test piece, and the temperature sensor is connected with the alternating current box.
8. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the induction heating device further comprises a circulating water cooling mechanism and a hollow runner, wherein the circulating water cooling mechanism is communicated with the hollow runner, and the hollow runner is arranged on the induction heating mechanism.
9. The induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to claim 1, wherein: the inert ambient atmosphere chamber comprises a glove box, an inert gas supply and a gas detection element; the inert gas supplier is communicated with the interior of the glove box and is used for introducing inert gas into the glove box, and the gas detection element is arranged in the glove box and is used for detecting the oxygen content and the water content in the glove box; the inert gas supply is connected with the gas detection element to form a closed-loop control circuit.
10. An induction heating assisted ultrasonic impact strengthening method in inert atmosphere is characterized in that: achieved by an induction heating assisted ultrasonic impact reinforcement device in an inert atmosphere according to any of the claims 1-9, comprising the steps of:
step 1: clamping and fixing the rod-shaped test piece through a rotary clamping mechanism;
step 2: introducing inert gas into the inert ambient atmosphere chamber, and ensuring that the oxygen content and the water content concentration in the inert ambient atmosphere chamber are smaller than set values;
step 3: starting an induction heating mechanism to heat the surface of the rod-shaped test piece;
step 4: after the surface of the rod-shaped test piece is heated to a set temperature, the rotary clamping mechanism drives the rod-shaped test piece to rotate at a constant speed;
step 5: the ultrasonic impact strengthening mechanism is contacted with the rod-shaped test piece, static load is applied, and then the ultrasonic impact strengthening mechanism is started;
step 6: the ultrasonic impact strengthening mechanism and the induction heating mechanism synchronously and reciprocally move along the length direction of the rod-shaped test piece at a constant speed and carry out ultrasonic impact strengthening treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653568.2A CN116732299A (en) | 2023-06-05 | 2023-06-05 | Induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310653568.2A CN116732299A (en) | 2023-06-05 | 2023-06-05 | Induction heating auxiliary ultrasonic impact strengthening device and method in inert atmosphere |
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| CN116732299A true CN116732299A (en) | 2023-09-12 |
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