Composite plastic synergy hole piece strengthening device and using method thereof

Abstract

The invention discloses a composite plastic synergy hole piece strengthening device and a using method thereof, and relates to the technical field of material processing.The composite plastic synergy hole piece strengthening device comprises a workbench, a T-shaped plug used for installing a hole piece is arranged on the workbench, and an induction coil electrically connected with a power frequency power source is arranged in the workbench; the induction coil is further electrically connected to the control module and the rapid charging and discharging module, the rapid charging and discharging module is electrically connected to the control module, the control module is electrically connected to the central control computer, a spray gun of the plasma beam generation equipment is arranged on the workbench, and a nozzle of the spray gun faces the perforated piece. Laser generated by the laser generation equipment is irradiated on the perforated piece through the light guide system and the focusing lens, and the central control computer is also electrically connected with a high-precision sensor for acquiring various data on the perforated piece. According to the T-shaped plug, the problem of deformation of the perforated part in the eddy heating process is effectively solved by adopting the homogeneous material of the component and the design of the same size of the aperture and the depth, and the size precision and the structural integrity of the perforated part are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of material processing, and particularly relates to a composite plasticizing and synergistic hole component strengthening device and a using method thereof. Background Art

[0002] In modern high-end manufacturing, perforated parts, as indispensable key components, are widely used in many core fields such as aerospace, automotive manufacturing, energy equipment, and precision machinery. In the aerospace field, perforated parts such as turbine blades of aero-engines and structural connectors of aircraft need to work stably for a long time in extremely harsh environments such as high temperature, high pressure, high rotational speed, and strong corrosion, posing almost demanding requirements on their strength, toughness, fatigue resistance, and wear resistance. For example, the cooling holes on the turbine blades of aero-engines not only have to withstand the erosion of high-temperature gas but also maintain structural integrity under the action of complex thermal stress and mechanical stress. Any minor performance defect may lead to blade failure and thus cause serious flight accidents.

[0003] In the automotive manufacturing field, there are a large number of perforated structures in key components such as engine cylinder blocks, crankshafts, and connecting rods. The performance of these perforated parts directly affects the power output, fuel economy, and reliability of the engine. With the continuous pursuit of energy conservation, emission reduction, and high performance in the automotive industry, the performance requirements for perforated parts are becoming increasingly strict.

[0004] However, traditional perforated part strengthening technologies have many insurmountable limitations. A single laser processing technology can indeed form a modified layer with high hardness and good wear resistance on the material surface. However, due to the limited penetration depth of laser energy, its strengthening effect on the interior of perforated parts, especially the hole wall area, is minimal. Taking the cooling holes of aero-engine turbine blades as an example, relying solely on laser processing cannot effectively improve the thermal fatigue resistance of the hole wall under the erosion of high-temperature and high-pressure gas, resulting in cracks prone to occur at the hole edge, seriously affecting the service life of the blade and the reliability of the engine.

[0005] During the process of promoting the transformation of austenite to martensite by eddy current heating technology, if effective anti-deformation measures are lacking, the perforated part (4) is extremely prone to deformation during the heating process. For example, during the manufacturing process of an automotive engine crankshaft, when using traditional eddy current heating technology, due to the complex structure of the crankshaft and uneven heating of each part, it is easy to cause deformation in the journal and crank parts, making it difficult to ensure the dimensional accuracy of the crankshaft and affecting the assembly and normal operation of the engine.

[0006] In addition, it is difficult for existing strengthening technologies to achieve all-round collaborative strengthening of perforated parts from the surface to the inside. The amount of martensite generated and the microstructure morphology cannot be accurately controlled, resulting in large fluctuations in the performance of perforated parts during actual application. In the field of precision machinery, extremely high requirements are placed on the dimensional accuracy and performance consistency of perforated parts. Perforated parts processed by traditional strengthening technologies are difficult to meet these strict requirements, restricting the improvement of product quality and the expansion of application scope. Summary of the Invention

[0007] The purpose of the present invention is to provide a composite plasticizing collaborative hole part strengthening device and its usage method to overcome the above-mentioned defects in the prior art.

[0008] A composite plasticizing collaborative hole part strengthening device includes a workbench, a control module, a central control computer, a plasma beam generating device, and a laser generating device. A T-shaped plug for installing a perforated part is provided on the workbench. An induction coil electrically connected to a power frequency power supply is provided in the workbench. The induction coil is also electrically connected to the control module and a rapid charge and discharge module. The rapid charge and discharge module is electrically connected to the control module, and the control module is electrically connected to the central control computer. The spray gun of the plasma beam generating device is provided on the workbench and its nozzle faces the perforated part. The laser generated by the laser generating device is irradiated on the perforated part through a light guiding system and a focusing lens. The central control computer is also electrically connected to a high-precision sensor for collecting various data on the perforated part.

[0009] Preferably, the T-shaped plug is made of the same steel as the component. The outer diameter of the base of the T-shaped plug is equal to the inner diameter of the hole of the perforated part, and the length of the T-shaped plug is equal to the thickness of the perforated part.

[0010] Preferably, the number of turns of the induction coil is 5 - 20 turns, and the wire diameter of the induction coil is 2 - 5 mm.

[0011] Preferably, the distance between the nozzle of the spray gun and the hole of the perforated part is 10 - 30 mm.

[0012] Preferably, an asbestos heat insulation layer and an absorption constraint layer are arranged on the top of the perforated part from top to bottom.

[0013] The usage method of the above-mentioned composite plasticizing collaborative hole part strengthening device includes the following steps:

[0014] S1. Install each module carefully according to the design drawings: In the laser shock module, fix the laser generating device and calibrate the light guiding system and the focusing lens; in the eddy current heating module, place the power frequency power supply, wind and fix the induction coil, and accurately install the T-shaped plug on the workbench; in the plasma beam module, install the plasma beam generating device and the spray gun, and debug the gas supply system; in the central control module, connect the high-precision sensor and do a good job in shielding;

[0015] S2. According to the material, size and performance requirements of the perforated part, set parameters in the central control module: set the parameters of the laser generating device, eddy current heating power frequency power supply and plasma beam generating device for the perforated part;

[0016] S3. Installation of the perforated part: First, rinse the perforated part with deionized water, then cool it, keep the residual heat for heat preservation and dry it. Then, use a coordinate measuring instrument to detect the size. After passing the inspection, apply high-temperature grease on the surface of the T-shaped plug and accurately install it on the surface with tools;

[0017] S4. Installation of the heat insulation material: Place an asbestos heat insulation layer and an absorption restraint layer above the perforated part;

[0018] S5. Strengthening treatment: Start each module in sequence. Monitor the laser parameters and surface conditions during laser shock. In eddy current heating, the induction coil is heated to 1000 °C and kept warm according to the setting. Pay attention to the hole expansion of the T-shaped plug and the perforated part. The plasma beam of the plasma beam generating device is used for heating, rapid cooling and residual heat preservation, and monitor the surface temperature throughout the process;

[0019] S6. Data monitoring: The control module collects the temperature and stress data of the perforated part in real time through high-precision sensors, once every 0.1 - 1 second. Compare the collected data with the preset values. When the temperature deviation exceeds ±2 °C or the stress is abnormal, automatically adjust the parameters of each module.

[0020] Preferably, in step S2, the pulse energy of the laser generating device for the perforated part is set to 5 - 15 joules, the pulse frequency is set to 10 - 50 Hz, and the pulse width is set to 10 - 50 ns; in eddy current heating, the frequency of the power frequency power supply is set to 50 Hz, the power is set to 6 - 8 kW, the heating rate is set to 5 - 10 °C / s, and the heat preservation is set to 10 - 20 minutes; the working voltage of the plasma beam generating device is set to 50 - 100 V, the current is set to 5 - 10 A, and the gas flow rate is set to 5 - 15 L / min.

[0021] Preferably, in step S3, the cooling rate of the perforated part is set to 50 - 100 °C / s, the residual heat preservation is set to 5 - 10 minutes, and the drying is carried out at a temperature of 80 - 100 °C for 1 - 2 hours.

[0022] The beneficial effects achieved by the present invention are as follows:

[0023] 1. In this application, high energy density is achieved through plasma beam metal heating. The plasma beam has concentrated energy and fast heating speed, which is suitable for local heating and rapid processing. At the same time, it has a high-temperature capacity of more than 800 °C and can quickly reach the temperature for generating austenite. During plasma beam heating, the inert gas from the nozzle can provide a protective atmosphere to prevent metal oxidation. Cooperating with the laser, with a small gas flow rate, it can effectively save energy and gas, and overcome the problem of insufficient energy transmission in single plasma heating.

[0024] 2. The use of homogeneous materials for the components of the T-shaped plug and the design of the same size for the aperture diameter and depth effectively solve the deformation problem of the perforated parts during the eddy current heating process, ensuring the dimensional accuracy and structural integrity of the perforated parts.

[0025] 3. The combined heating of eddy current from inside to outside and the heating of laser and plasma beam from surface to inside organically combines laser shock and plasma beam technology, generating relatively uniform austenite on the surface layer of the perforated parts. Coupled with eddy current heating to promote the transformation of austenite to martensite, it realizes the all-round collaborative strengthening of the perforated parts from the surface to the inside and from the whole to the local. Multiple technologies complement each other and work together, significantly improving the comprehensive performance of the perforated parts and providing a new solution for the strengthening of perforated parts. Especially for the difficult problem of strengthening large perforated connectors, it meets the requirements of strength, sealing performance and corrosion resistance of the connectors at the same time. These advantages make plasma beam heating widely used in fields such as aerospace, automotive manufacturing and electronics industry.

[0026] 4. By collecting parameters such as temperature and stress of the perforated parts in real time and comparing and analyzing them with the preset target values, the control unit can quickly adjust the operating parameters of each module to ensure that the strengthening process is always carried out in the best state. This precise process control not only improves the quality stability and consistency of the perforated parts, but also can flexibly adjust the strengthening process according to different material characteristics and performance requirements to meet diverse production needs. For example, when producing automotive parts of different materials and sizes, through the intelligent control of the central control module, the strengthening process parameters can be quickly switched to ensure that each part can achieve the best strengthening effect.

[0027] 5. The strengthening device of the present invention is applicable to perforated parts of various materials and different sizes, and has a wide application prospect. Whether it is metal materials such as aluminum alloy, titanium alloy, alloy steel, or new composite materials, effective strengthening can be achieved through this device. In terms of perforated parts of different sizes, from the tiny holes of small precision mechanical parts to the large-sized holes of large industrial equipment, this device can play a good strengthening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0029] In the figure, 1. Laser generating device; 2. Central control computer; 3. Focusing lens; 4. Perforated part; 5. T-shaped plug; 6. Control module; 7. Fast charge and discharge module; 8. Power frequency power supply; 9. Workbench; 10. Plasma beam generating device; 11. Spray gun; 12. Light guiding system; 13. Induction coil; 14. Asbestos heat insulation layer; 15. Absorption and constraint layer; 16. High-precision sensor. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following will, with reference to the accompanying drawings and through the description of embodiments, further elaborate on the specific implementation manners of the present invention in detail, so as to help those skilled in the art have a more complete, accurate, and in-depth understanding of the concept and technical solutions of the present invention.

[0031] As Figure 1 shown, the present invention provides a composite plastic-plasticity synergistic hole component strengthening device, including a workbench 9, a control module 6, a central control computer 2, a plasma beam generating device 10, and a laser generating device 1. A T-shaped plug 5 for installing a hole component 4 is provided on the workbench 9. The T-shaped plug 5 is made of the same steel as the component. The outer diameter of the base of the T-shaped plug 5 is equal to the inner diameter of the hole of the hole component 4, and the length of the T-shaped plug 5 is equal to the thickness of the hole component 4, ensuring synchronous and uniform expansion with the hole of the hole component 4 during heating without material melting, effectively preventing the hole component 4 from deforming, maintaining the dimensional accuracy of the hole, ensuring the structural integrity of the hole component 4 during high-temperature treatment. An asbestos heat insulation layer 14 and an absorption and constraint layer 15 are provided on the top of the hole component 4 from top to bottom;

[0032] An induction coil 13 electrically connected to a power frequency power supply 8 is provided in the workbench 9. The induction coil 13 is also electrically connected to the control module 6 and a fast charge and discharge module 7. The fast charge and discharge module 7 is electrically connected to the control module 6, and the control module 6 is electrically connected to the central control computer 2. The number of turns of the induction coil 13 is 5-20 turns, and the wire diameter of the induction coil 13 is 2-5 mm. The power frequency power supply 8 stably supplies power to the induction coil 13;

[0033] The eddy current heating module utilizes the principle of electromagnetic induction. When the power frequency power supply 8 provides an alternating current for the induction coil 13, an alternating magnetic field will be generated around the induction coil 13. The perforated part 4 is placed in this alternating magnetic field, and an induced electromotive force will be generated inside, and then a strong eddy current will be formed. The eddy current generates Joule heat inside the perforated part 4, causing the perforated part 4 to quickly heat up. During the heating process, the built-in T-shaped plug 5 plays a key role. The T-shaped plug 5 is made of the same quality steel as the component with a high coefficient of thermal expansion matching that of the perforated part 4. Its shape and size have been precisely analyzed by finite element simulation, considering various factors such as the material properties, size, and heating rate of the perforated part 4. During the heating process, the plug and the holes of the perforated part 4 are heated and expanded uniformly synchronously, which not only prevents the perforated part 4 from deforming at high temperatures but also ensures the dimensional accuracy of the holes, ensuring synchronous and uniform expansion with the holes of the perforated part 4 during heating and without material melting, effectively preventing the perforated part 4 from deforming, maintaining the dimensional accuracy of the holes, and ensuring the structural integrity of the perforated part 4 during the high-temperature treatment process. When the temperature rises to 1000°C, the austenite in the perforated part 4 begins to transform into martensite. By precisely controlling the heating rate and holding time, the amount and microstructure of martensite can be effectively regulated to obtain supersaturated martensite with excellent anti-fatigue and wear-resistant properties. Taking the manufacture of the crankshaft of an automobile engine as an example, by promoting the transformation of austenite into martensite through eddy current heating, the strength and wear resistance of the crankshaft can be significantly improved, and the service life of the crankshaft can be extended by 2 - 3 times.

[0034] The spray gun 11 of the plasma beam generating device 10 is arranged on the workbench 9 and its nozzle faces the perforated part 4. The distance between the nozzle of the spray gun 11 and the holes of the perforated part 4 is 10 - 30 millimeters, ensuring that the plasma is sprayed onto the surface of the perforated part 4 evenly and stably. The gas supply system uses a high-precision mass flow controller, which can precisely control the flow rate of the working gas. The adjustment range is 5 - 15 liters per minute, and the pressure control accuracy is within ±0.05 MPa, providing guarantee for the stable generation and efficient transmission of the plasma, heating the surface, through rapid cooling and afterheat insulation, optimizing the surface material properties, and preventing component decarburization and oxidation;

[0035] During the rapid expansion process of the plasma, a strong shock wave is generated. The shock wave acts on the surface of the perforated part 4, causing plastic deformation and forming residual compressive stress on it. This residual compressive stress can effectively inhibit the initiation and propagation of surface cracks of the perforated part 4, significantly improving the surface strength and anti-fatigue performance of the perforated part 4. For example, after laser shock peening of the blades of an aeroengine, the fatigue life of the blade surface can be improved, effectively enhancing the reliability and safety of the engine;

[0036] The laser generated by the laser generating device 1 is irradiated onto the perforated part 4 through the light guiding system 12 and the focusing lens 3. The optical path conduction component adopts a low-loss optical fiber or a high-quality mirror group, and its laser transmission efficiency is not less than 90%, ensuring the efficient transmission of laser energy. The focal length accuracy of the focusing lens 3 is controlled within ±0.1 mm, and the focal spot diameter can be accurately adjusted within the range of 0.5 - 2 mm, enabling the laser pulse to be precisely focused on the surface of the perforated part 4, generating a strong residual compressive stress on the surface of the perforated part 4 and significantly improving the surface fatigue resistance;

[0037] The core component of the laser shock module, the pulsed laser, uses laser excitation and modulation technologies to emit laser pulses with specific energy, frequency, and width. These laser pulses are efficiently transmitted through the optical path conduction component, which adopts advanced optical designs and materials to ensure the minimization of laser energy loss during transmission. They are precisely focused on the surface of the perforated part 4 by the focusing lens 3. In a very short time, the laser energy is absorbed by the surface material of the perforated part 4;

[0038] The central control computer 2 is also electrically connected to the high-precision sensors 16 used to collect various data on the perforated part 4. A plurality of high-precision sensors 16 are distributed at key parts of the perforated part 4 to collect key parameters such as temperature, stress, and strain of the perforated part 4 during the strengthening process in real time.

[0039] The plasma generator of the plasma beam module adopts advanced gas ionization and plasma confinement technologies to generate high-temperature and high-energy plasma. The plasma is precisely sprayed onto the surface of the perforated part 4 under the guidance of the spray gun 11. On the surface, the plasma rapidly releases energy, causing the surface material to quickly heat up. Subsequently, through rapid cooling measures, such as spraying high-speed cooling gas or water cooling, etc., the surface material undergoes a rapid cooling process to form a specific tissue structure. Immediately afterwards, heat preservation treatment is carried out using the residual heat of the material itself to further optimize the tissue performance of the surface material. This unique heating-cooling-heat preservation process can significantly improve the wear resistance and strength of the surface of the perforated part 4, making up for the deficiencies of laser shock and eddy current heating in surface strengthening. For example, after the plasma beam surface strengthening of the perforated connectors of oil pipelines, the sealing performance and corrosion resistance of the connectors are greatly improved, effectively reducing the risk of pipeline leakage and extending the service life of the pipeline.

[0040] The central control module 6, acting as the "brain" of the entire device, adopts a high-performance programmable logic controller (PLC) or an industrial computer, with powerful data processing and computing capabilities. Through the high-precision sensors 16 distributed at the key parts of the perforated part 4, key parameter data such as the temperature, stress, and strain of the perforated part 4 during the strengthening process are collected in real time. Advanced fuzzy control algorithms or neural network algorithms are preset inside the control unit. These algorithms can automatically and intelligently calculate and output the optimal operating parameters of each module according to the real-time collected data, combined with the material properties, size parameters of the perforated part 4, and the preset performance targets, so as to achieve precise control of the laser shock module, eddy current heating module, and plasma beam module. For example, when the high-precision sensor 16 detects that the temperature of the perforated part 4 is too high or too low, the central control module 6 will timely adjust the output power or heating time of the eddy current heating module; when the high-precision sensor 16 detects abnormal internal stress in the perforated part 4, it will adjust the working parameters of the laser shock module or the plasma beam module to ensure the coordinated operation of each module, realize highly automated and precise control of the strengthening process, and ensure the strengthening quality and performance consistency of the perforated part 4.

[0041] The usage method of the above-mentioned plastic-collaborative hole part strengthening device includes the following steps:

[0042] S1. Install each module carefully according to the design drawings: In the laser shock module, fix the laser generating device 1 and calibrate the light guiding system 12 and the focusing lens 3; in the eddy current heating module, place the industrial frequency power supply 8, wind and fix the induction coil 13, and precisely install the T-shaped plug 5 on the workbench 9; in the plasma beam module, install the plasma beam generating device 10 and the spray gun 11, and debug the gas supply system; connect the central control module 6 with the high-precision sensor 16 and do a good job in shielding;

[0043] S2. Set parameters in the central control module 6 according to the material, size, and performance requirements of the perforated part 4: Set the parameters of the laser generating device 1, the eddy current heating industrial frequency power supply 8, and the plasma beam generating device 10 for the perforated part 4. Among them, the pulse energy of the laser generating device 1 is set to 5 - 15 joules, the pulse frequency is set to 10 - 50 hertz, and the pulse width is set to 10 - 50 nanoseconds. Among them, the adjustment accuracy of the pulse energy can reach ±0.1 joule, the adjustment accuracy of the pulse frequency can reach ±0.5 hertz, and the adjustment accuracy of the pulse width can reach ±1 nanosecond to meet the fine requirements of different materials and processes for laser parameters; in eddy current heating, the frequency of the industrial frequency power supply 8 is set to 50 hertz, the power is set to 6 - 8 kilowatts, the heating rate is set to 5 - 10 °C / s, and the heat preservation is set to 10 - 20 minutes; the working voltage of the plasma beam generating device 10 is set to 50 - 100 volts, the current is set to 5 - 10 amperes, and the gas flow rate is set to 5 - 15 liters per minute;

[0044] S3. Installation of the perforated part 4: First, rinse the perforated part 4 with deionized water, then carry out cooling, post-heat insulation and drying. The cooling rate is set at 50 - 100 °C / s, the post-heat insulation is set for 5 - 10 minutes, and drying is carried out at a temperature of 80 - 100 °C for 1 - 2 hours. Then, use a coordinate measuring instrument to detect the dimensions. After passing the inspection, apply high-temperature grease on the surface of the T-shaped plug 5 and accurately install it on the surface with tools;

[0045] S4. Installation of the heat insulation material: Place the asbestos heat insulation layer 14 and the absorption restraint layer 15 above the perforated part 4;

[0046] S5. Strengthening treatment: Start each module in sequence. Monitor the laser parameters and the surface condition during laser shock. In eddy current heating, the induction coil 13 is heated to 1000 °C according to the setting and kept warm. Pay attention to the hole expansion of the T-shaped plug 5 and the perforated part 4. The plasma beam of the plasma beam generating device 10 is used for heating, rapid cooling and post-heat insulation, and monitor the surface temperature throughout the process;

[0047] S6. Data monitoring: The control module 6 collects data such as the temperature and stress of the perforated part 4 in real time through the high-precision sensor 16, once every 0.1 - 1 second. Compare the collected data with the preset values. When the temperature deviation exceeds ±2 °C or the stress is abnormal, automatically adjust the parameters of each module.

[0048] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A composite plasticizing and synergetic hole part strengthening device, characterized in that: It includes a workbench (9), a control module (6), a central control computer (2), a plasma beam generating device (10) and a laser generating device (1). A T-shaped plug (5) for installing a perforated part (4) is provided on the workbench (9). An induction coil (13) electrically connected to a power frequency power supply (8) is provided in the workbench (9). The induction coil (13) is also electrically connected to the control module (6) and a fast charge and discharge module (7). The fast charge and discharge module (7) is electrically connected to the control module (6). The control module (6) is electrically connected to the central control computer (2). The spray gun (11) of the plasma beam generating device (10) is provided on the workbench (9) and its nozzle faces the perforated part (4). The laser generated by the laser generating device (1) irradiates the perforated part (4) through an optical guiding system (12) and a focusing lens (3). The central control computer (2) is also electrically connected to a high-precision sensor (16) for collecting various data on the perforated part (4).

2. The composite plasticizing and synergistic hole part strengthening device according to claim 1, wherein: The T-shaped plug (5) is made of the same material steel as the component. The outer diameter of the base of the T-shaped plug (5) is equal to the inner diameter of the hole of the perforated part (4), and the length of the T-shaped plug (5) is equal to the thickness of the perforated part (4).

3. A composite plasticizing and synergistic hole component strengthening device according to claim 1, characterized in that: The number of turns of the induction coil (13) is 5 - 20 turns, and the wire diameter of the induction coil (13) is 2 - 5 mm.

4. A composite plastic-plasticity synergistic hole strengthening device according to claim 1, characterized in that: The distance between the nozzle of the spray gun (11) and the hole of the perforated part (4) is 10 - 30 mm.

5. A composite plastic-plasticity synergistic hole strengthening device according to claim 1, characterized in that: An asbestos heat insulation layer (14) and an absorption and constraint layer (15) are arranged on the top of the perforated part (4) from top to bottom.

6. A method for using a consistent plastic collaborative hole strengthening device as described in any one of claims 1-5, characterized in that: It includes the following steps: S1. According to the design drawings, carefully install each module: In the laser shock module, fix the laser generating device (1) and calibrate the optical guiding system (12) and the focusing lens (3); In the eddy current heating module, place the power frequency power supply (8), wind and fix the induction coil (13), and accurately install the T-shaped plug (5) on the workbench (9); In the plasma beam module, install the plasma beam generating device (10) and the spray gun (11), and debug the gas supply system; Connect the high-precision sensor (16) to the central control module (6) and do a good job in shielding; S2. According to the material, size and performance requirements of the perforated part (4), set parameters in the central control module (6): Set the parameters of the laser generating device (1), the eddy current heating power frequency power supply (8) and the plasma beam generating device (10) for the perforated part (4); S3. Installation of the perforated part (4): First, rinse the perforated part (4) with deionized water, then cool it, keep the residual heat and dry it. Then use a coordinate measuring instrument to detect the size. After passing the inspection, apply high-temperature grease on the surface of the T-shaped plug (5) and accurately install it on the surface with tools; S4. Installation of heat insulation materials: Place the asbestos heat insulation layer (14) and the absorption and constraint layer (15) above the perforated part (4); S5. Strengthening treatment: Start each module in sequence. During laser shock, monitor laser parameters and surface conditions. During eddy current heating, the induction coil (13) is heated to 1000 °C according to the setting and kept warm. Pay attention to the hole expansion of the T-shaped plug (5) and the perforated part (4). The plasma beam of the plasma beam generating device (10) is used for heating, rapid cooling, and afterheat insulation. Monitor the surface temperature throughout the process; S6. Data monitoring: The control module (6) collects the temperature and stress data of the perforated part (4) in real time through the high-precision sensor (16), once every 0.1 - 1 second. Compare the collected data with the preset values. When the temperature deviation exceeds ±2 °C or the stress is abnormal, automatically adjust the parameters of each module.

7. The usage method of a composite plasticizing and synergistic hole part strengthening device according to claim 6, characterized in that: In step S2, the pulse energy of the laser generating device (1) of the perforated part (4) is set to 5 - 15 joules, the pulse frequency is set to 10 - 50 Hz, and the pulse width is set to 10 - 50 ns; during eddy current heating, the frequency of the power frequency power supply (8) is set to 50 Hz, the power is set to 6 - 8 kW, the heating rate is set to 5 - 10 °C / s, and the heat preservation is set to 10 - 20 minutes; The working voltage of the plasma beam generating device (10) is set to 50 - 100 V, the current is set to 5 - 10 A, and the gas flow rate is set to 5 - 15 L / min.

8. The usage method of a composite plasticizing and synergistic hole part strengthening device according to claim 6, characterized in that: In step S3, the cooling rate of the perforated part (4) is set to 50 - 100 °C / s, the afterheat insulation is set for 5 - 10 minutes, and drying is carried out at a temperature of 80 - 100 °C for 1 - 2 hours.

Images