Four-side water channel steering structure of aluminum alloy box body

The design of the aluminum alloy box with four-sided water channel turning structure solves the problem of poor support surface strength of the blank cover plate, realizes the stability and sealing of the flow channel processing, and ensures the stability and dustproof effect of FSW welding.

CN121020004APending Publication Date: 2025-11-28XIAN LONGYUAN ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202410666419.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

In existing aluminum alloy box-type four-sided water channel turning structures, the support surface of the blank cover plate has poor strength, which easily leads to collapse during FSW welding and makes the flow channel processing difficult.

Method used

It adopts an aluminum alloy box with a four-sided water channel turning structure, including a front flow channel plate, side flow channel plates, drainage plate, flow channel pipe and FSW cover plate. It is formed into a solid connection with a slanted hole structure through CNC machining. Combined with the design of spiral spring and baffle plate, it achieves sealing and dustproof effect.

Benefits of technology

It improves the strength support of the flow channel turning structure, ensures the stability of FSW welding, prevents dust from entering when not in use, provides intuitive stress monitoring and data feedback, and ensures the normal use and sealing of the flow channel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of aluminum alloy box bodies, and discloses an aluminum alloy box body four-side water channel steering structure which comprises a box body, a box body water channel structure is arranged on the outer surface of the box body, a pipeline is fixedly connected to the left side of the box body, a pipeline dustproof device is arranged on the inner surface of the pipeline, and the box body water channel structure comprises a front flow channel plate. The inner surface of the positive runner plate is fixedly connected with a plurality of sets of partition plates, and the end, away from the pipeline, of the positive runner plate is fixedly connected with a runner pipe. Through the arrangement of the drainage plate, the front flow channel plate, the partition plate, the side flow channel plate, the flow channel pipe and the FSW cover plate, the cavity structure design in an initial flow channel steering structure in the prior art can be changed, the cavity structure design is changed into a solid connection and inclined hole structure in the device, meanwhile, the FSW cover plate structure is additionally arranged, the FSW cover plate structure can be in an assembly state in the FSW welding process, and the FSW welding efficiency is improved. Therefore, sufficient strength support is provided in FSW welding.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum alloy box bodies, in particular to a four-side water channel turning structure of an aluminum alloy box body. BACKGROUND

[0002] The aluminum alloy box body is a box body structure made of aluminum alloy material. The box body is usually used for packaging, protecting or fixing electronic devices, mechanical parts or other objects, in addition, the aluminum alloy has good corrosion resistance and heat conductivity, so that the aluminum alloy box body can play a role under various environmental conditions.

[0003] In the prior art, for the aluminum alloy box body with four-side water channels, in order to improve the water channel pressure resistance and the stability of the water channel sealing process, the FSW (friction stir welding) process with a cover plate is usually used for the water channels.

[0004] However, in the actual use process, the initial flow channel turning design has the following problems: the blank cover plate support surface has poor strength, collapse is easily formed in the FSW welding, and the flow channel is difficult to process, and therefore the four-side water channel turning structure of the aluminum alloy box body is proposed to solve the above problems. SUMMARY

[0005] In view of the defects of the prior art, the four-side water channel turning structure of the aluminum alloy box body is provided to solve the problem of the structural design of the box body part with the turning cooling flow channel.

[0006] To achieve the above purpose, the following technical scheme is adopted: a four-side water channel turning structure of an aluminum alloy box body, comprising a box body, a box body water channel structure is arranged on the outer surface of the box body, a pipeline is fixedly connected to the left side of the box body, a pipeline dustproof device is arranged on the inner surface of the pipeline;

[0007] The box body water channel structure comprises a straight flow channel plate, a plurality of partition plates are fixedly connected to the inner surface of the straight flow channel plate, a flow channel pipe is fixedly connected to one end of the straight flow channel plate away from the pipeline, a side flow channel plate is fixedly connected to the end of the flow channel pipe away from the straight flow channel plate, a drainage plate is fixedly connected to the left side of the straight flow channel plate, and an FSW cover plate is fixedly connected to the outer surface of the box body.

[0008] Preferably, the pipeline dustproof device comprises a connecting plate, an inner shaft is fixedly connected to the inner side of the connecting plate, an outer shaft is rotatably connected to the outer arc surface of the inner shaft, a shielding plate is fixedly connected to the lower end of the outer arc surface of the outer shaft, and a limiting plate is fixedly connected to the lower end of the connecting plate.

[0009] Preferably, arc-shaped grooves are arranged on the front, rear, left and right sides of the box body, a through hole is arranged on the lower end of the left side of the box body, and arc-shaped grooves are arranged in the inner wall of the box body.

[0010] Preferably, the positive flow channel plate is provided with two groups, and the two groups of positive flow channel plates are symmetrically distributed with the center line of the box as the symmetry axis, a through hole is formed in the left side of the front end of the positive flow channel plate, and the flow channel pipe is provided with multiple groups and the interval distances between the multiple groups of flow channel pipes are the same.

[0011] Preferably, the inner surface of the positive flow channel pipe is provided with multiple groups of rectangular flow channels, the inner surface of the side flow channel plate is provided with multiple groups of rectangular flow channels, and a through hole is formed in the left side of the drainage plate.

[0012] Preferably, the inside of the drainage plate is hollow, the outer surface of the FSW cover plate is fixedly connected with the box through FSW welding, and a through hole is formed in the left side of the FSW cover plate.

[0013] Preferably, the outer surface of the connecting plate is fixedly connected with the pipeline, a rectangular groove is formed in the center of the inner surface of the connecting plate, and the outer arc surface of the inner shaft is elastically connected with the outer shaft through a volute spring.

[0014] Preferably, a through hole is formed in the center of the inner surface of the outer shaft, the lower end of the shielding plate is provided as an arc surface, and the outer surface of the limiting plate is in contact with the shielding plate.

[0015] The aluminum alloy box four-side water channel turning structure test method comprises the following steps:

[0016] S1: Preparation

[0017] Prepare the test equipment and tools, and ensure their normal operation and accuracy, including a water pressure gauge and measuring tools;

[0018] S2: Appearance inspection:

[0019] Carefully inspect the appearance of the aluminum alloy box to ensure that the surface is free of damage or defects to avoid affecting the test results;

[0020] S3: Performance test

[0021] Perform a pressure test on the four-side water channel turning structure of the aluminum alloy box, observe its performance under different water pressures, and record the relevant data;

[0022] S4: Support strength test:

[0023] Simulate the stress conditions of the cover plate during actual welding, including support force, bending moment and torque, and verify the support strength of each cover plate during FSW welding;

[0024] S5: Durability test

[0025] Perform a long-time running test on the four-side water channel turning structure of the aluminum alloy box to verify its stability and durability;

[0026] S6: Data analysis

[0027] The test data is sorted and analyzed to obtain the performance parameters and evaluation results of the four-way waterway turning structure of the aluminum alloy box body.

[0028] S7: Test report

[0029] According to the test results and analysis, a detailed test report is prepared, including test purpose, test method, test results and conclusion.

[0030] Preferably, the S4 support strength test is mainly used to test the stability of the cover plate during the FSW welding process, including the following steps:

[0031] S401: Size measurement

[0032] Place the aluminum alloy box body on a stable test platform, and use measuring tools to accurately measure the size and position of the aluminum alloy box body to ensure the accuracy of the test data;

[0033] S402: Establish support model

[0034] According to the data measured in S401, a three-dimensional model of the cover plate is established, and multiple groups of pressure detection pole pieces are attached to the surface of the cover plate, and the support device is used to support the cover plate, simulating the stress state of the cover plate during actual welding process, including support force, bending moment and torque, and the stress state is displayed in different colors in the three-dimensional modeling graph;

[0035] S403: Critical state detection

[0036] Gradually increase the force applied by the support device, observe the deformation and stability of the cover plate, and record the relevant data;

[0037] S404: Data summary and analysis

[0038] According to the test data, the support strength of the cover plate is analyzed to evaluate its stability and reliability in the actual welding process.

[0039] Working principle: After changing the cavity flow turning structure in the prior art to a solid structure supported by holes, the front surface and right side direction of the FSW cover plate can be directly machined by CNC, while the inclined holes of the improved turning structure are machined by shaft, so that the FSW cover plate only needs to be machined by CNC and cleaned during production, and then assembled on the outside of the box body, and after riveting, FSW welding is completed to form a sealed waterway cavity.

[0040] At the same time, after the welding assembly process of the device is completed, because the inside of the flow channel is in a sealed environment, only the two groups of water inlets on the left side of the box and the drain are connected with the outside environment, at this time the volute spring will drive the shielding plate to move to the limiting plate through its own elastic force, and finally make the shielding plate can be kept in close contact with the limiting plate, so as to seal the port of the pipeline, and when it is necessary to inject fluid into the device, the pressure of the water flow will extrude the shielding plate to make it overcome the elastic force of the volute spring and rotate, at this time the pipeline will be in an open state, so as to not hinder the movement of the fluid in the device.

[0041] The application provides an aluminum alloy box four-side water channel turning structure.

[0042] 1、The drainage plate, the positive flow channel plate, the partition plate, the side flow channel plate, the flow channel pipe and the FSW cover plate can change the cavity structure design in the initial flow channel turning structure in the prior art into the entity connection with inclined hole structure in the device, and the FSW cover plate structure is increased, so that the FSW welding is in an assembled state, and sufficient strength support is provided in the FSW welding.

[0043] 2、The connecting plate, the outer shaft, the shielding plate and the limiting plate can drive the shielding plate to move to the limiting plate through the elastic force of the volute spring after the device is not used or detected, so that the connecting plate, the outer shaft and the shielding plate can fully shield the port of the pipeline, and dust and impurities in the external environment are prevented from entering the device to affect the normal use of the internal flow channel.

[0044] 3、In use, the cover plate is fixed through the supporting device, the surface stress state of the cover plate is monitored in real time by using the pressure detection pole piece, the monitoring data is fed back to the three-dimensional modeling image in different color states, the stress state of the cover plate in the FSW welding process is accurately reflected, the key parameters including the supporting force, the bending moment and the torque are obtained, and the support strength performance of the cover plate can be more intuitively understood by the inspector. DETAILED DESCRIPTION

[0045] Figure 1 It is a perspective view of the application;

[0046] Figure 2 It is an internal schematic view of the box after the FSW cover plate is taken out in the application;

[0047] Figure 3 It is a schematic view of the positive flow channel plate of the application;

[0048] Figure 4 It is a schematic view of the end of the pipeline of the application;

[0049] Figure 5 The cross section of the connecting plate of the present application is shown in the schematic diagram;

[0050] Figure 6 The flow chart of the test method for the four-side water channel turning structure of the aluminum alloy box body of the present application is shown in the figure;

[0051] Figure 7 The flow chart of the method of S4 of the present application is shown in the figure.

[0052] 1, box body; 2, box body water channel structure; 3, pipeline dustproof device; 4, pipeline; 201, drainage plate; 202, straight flow channel plate; 203, partition plate; 204, side flow channel plate; 205, flow channel pipe; 206, FSW cover plate; 301, connecting plate; 302, outer shaft; 303, shielding plate; 304, limiting plate; 305, inner shaft. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0054] Embodiment:

[0055] Please refer to the drawings in the specification of the present application Figure 1 - the drawings in the specification of the present application Figure 3 The aluminum alloy box body four-side water channel turning structure provided by the embodiments of the present application comprises a box body 1, a box body water channel structure 2 is arranged on the outer surface of the box body 1, a pipeline 4 is fixedly connected to the left side of the box body 1, and a pipeline dustproof device 3 is arranged on the inner surface of the pipeline 4.

[0056] The box body water channel structure 2 comprises a straight flow channel plate 202, a plurality of partition plates 203 are fixedly connected to the inner surface of the straight flow channel plate 202, a flow channel pipe 205 is fixedly connected to one end of the straight flow channel plate 202 away from the pipeline 4, a side flow channel plate 204 is fixedly connected to one end of the flow channel pipe 205 away from the straight flow channel plate 202, a drainage plate 201 is fixedly connected to the left side of the straight flow channel plate 202, and an FSW cover plate 206 is fixedly connected to the outer surface of the box body 1.

[0057] The box 1 is provided with an arc-shaped groove on each of the front, rear, left and right sides, so that the FSW cover plate 206 can be accommodated therein; the lower left end of the box 1 is provided with a through hole, so that the box 1 can be fixedly connected with the pipeline 4; the inner wall of the box 1 is provided with an arc-shaped groove, so that the straight flow channel plate 202 and the side flow channel plate 204 can be accommodated therein; the straight flow channel plate 202 is provided in two groups and symmetrically arranged about the center line of the box 1; the left side of the front straight flow channel plate 202 is provided with a through hole, so that the front straight flow channel plate 202 can be in communication with the pipeline 4; the flow channel pipe 205 is provided in multiple groups and the spacing between the multiple groups is the same; the inner surface of the straight flow channel plate 202 is provided with a plurality of rectangular flow channels, so that the fluid can flow in the flow channels; the inner surface of the side flow channel plate 204 is provided with a plurality of rectangular flow channels; the left side of the drainage plate 201 is provided with a through hole, so that the left side of the drainage plate 201 can be in communication with the side FSW cover plate 206 and form a drainage end; the drainage plate 201 is hollow; the outer surface of the FSW cover plate 206 is fixedly connected with the box 1 by FSW welding; and the left side of the FSW cover plate 206 is provided with a through hole.

[0058] Referring to Figures 4-5 , the pipeline dustproof device 3 comprises a connecting plate 301, the inner side of the connecting plate 301 is fixedly connected with an inner shaft 305, the outer arc surface of the inner shaft 305 is rotatably connected with an outer shaft 302, the outer arc surface of the lower end of the outer shaft 302 is fixedly connected with a shielding plate 303, and the lower end of the connecting plate 301 is fixedly connected with a limiting plate 304.

[0059] The outer surface of the connecting plate 301 is fixedly connected with the pipeline 4, the inner surface of the center of the connecting plate 301 is provided with a rectangular groove, so that the outer shaft 302 and the shielding plate 303 can be accommodated therein, and the outer arc surface of the inner shaft 305 is elastically connected with the outer shaft 302 through a volute spring, so that the volute spring can always give the outer shaft 302 and the shielding plate 303 a rotating force towards the limiting plate 304; the pipeline dustproof device 3 is provided in two groups, and the two groups of pipeline dustproof devices 3 are respectively located at the liquid inlet end and the liquid outlet end of the device, wherein the difference is that the limiting plate 304 in one group of pipeline dustproof devices 3 faces inward and the limiting plate 304 in the other group faces outward; the inner surface of the center of the outer shaft 302 is provided with a through hole, so that the inner surface of the center of the outer shaft 302 can be rotatably connected with the inner shaft 305; the lower end of the shielding plate 303 is provided in an arc shape, so that the shielding plate 303 is not easy to interfere with the pipeline 4 during rotation; and the outer surface of the limiting plate 304 is in contact with the shielding plate 303.

[0060] Please refer to the accompanying Figure 6 -attached Figure 7 , the test method of the aluminum alloy box four-side water channel turning structure, comprising the following steps:

[0061] S1: preparation

[0062] Prepare test equipment and tools, ensure their normal operation and accuracy, including water pressure gauge, measuring tools;

[0063] S2: Appearance inspection:

[0064] Carefully inspect the appearance of the aluminum alloy box body to ensure that the surface is free of damage or defects to avoid affecting the test results;

[0065] S3: Performance test

[0066] Perform pressure test on the four-way waterway turning structure of the aluminum alloy box body, observe its performance under different water pressures, and record relevant data;

[0067] This test can evaluate the performance of the structure under different water pressures to ensure its safety and stability in actual use. Before testing, we need to have a detailed understanding and analysis of the aluminum alloy box body and its four-way waterway turning structure. The four-way waterway turning structure refers to the water flow channels in the four directions inside the box body. Before the pressure test, we need to fully understand the material properties, structural characteristics, and layout of the water flow channels of the box body.

[0068] During the test, we need to simulate different water pressure working environments to observe the performance of the aluminum alloy box body and its four-way waterway turning structure under different water pressures. Specifically, by gradually increasing the water pressure, we observe the deformation of the box body, the smoothness of the water flow channels, and possible leakage problems. At the same time, we also need to record relevant data, including pressure value, deformation amount, leakage condition, to obtain the performance data of the box body under different water pressures. These data can also provide safety protection to ensure that the box body can still work normally in harsh working environments and avoid safety accidents caused by structural failure.

[0069] S4: Support strength test:

[0070] Simulate the stress conditions of the cover plate during actual welding, including support force, bending moment, and torque, to verify the support strength of each cover plate during FSW welding;

[0071] S5: Durability test

[0072] Perform long-term operation test on the four-way waterway turning structure of the aluminum alloy box body to verify its stability and durability;

[0073] The design of this four-way waterway turning structure is to achieve efficient liquid circulation inside the aluminum alloy box. Whether it is cooling or heating, it can achieve uniform distribution and rapid response through this structure. The four-way waterway turning structure is composed of multiple waterways, which are evenly distributed in the four directions of the aluminum alloy box. This design ensures that the liquid can fully contact every corner of the box during the flow process, thereby achieving uniform heat transfer.

[0074] During the cooling process, the four-way waterway turning structure can quickly export heat from the inside of the box and take away the heat through the cooling liquid circulation. During the heating process, the structure can uniformly transfer heat to every corner of the box, ensuring uniform temperature distribution inside the box.

[0075] S6: Data analysis

[0076] The test data is sorted and analyzed to obtain the performance parameters and evaluation results of the four-way waterway turning structure of the aluminum alloy box.

[0077] S7: Test report

[0078] According to the test results and analysis, a detailed test report is prepared, including test purpose, test method, test results and conclusion.

[0079] The S4 support strength test is mainly used to test the stability of the cover plate during the FSW welding process, including the following steps:

[0080] S401: Size measurement

[0081] Place the aluminum alloy box on a stable test platform and use measuring tools to accurately measure the size and position of the aluminum alloy box to ensure the accuracy of the test data.

[0082] S402: Establish support model

[0083] According to the data measured in S401, a three-dimensional model of the cover plate is established, and multiple groups of pressure detection poles are attached to the surface of the cover plate. At the same time, a support device is used to support the cover plate to simulate the stress conditions of the cover plate during actual welding, including support force, bending moment and torque. The stress state is displayed in different colors in the three-dimensional modeling graph.

[0084] In order to better simulate the various forces that the cover plate will experience during actual welding, multiple groups of pressure detection poles need to be attached to the surface of the cover plate. These poles can monitor the small changes of the cover plate during the stress process in real time, providing valuable experimental data for researchers. At the same time, in order to ensure the accuracy of the detection process, a special support device is also needed to stably support the cover plate.

[0085] During the detection process, various stress conditions that the cover plate may encounter during actual welding process need to be simulated, including support force, bending moment and torque, which have important influence on the stability and service life of the cover plate, that is, when the blank cover plate support surface strength is poor, collapse is easy to form during direct FSW welding, and in order to intuitively show these stress conditions, different color rendering techniques are used in the three-dimensional modeling graphics, so that the detection personnel can observe the deformation and stress distribution of the cover plate under different stress conditions at a glance.

[0086] S403: Critical state detection

[0087] Gradually increase the force applied by the support device, observe the deformation and stability of the cover plate, and record the relevant data;

[0088] S404: Data summary and analysis

[0089] According to the test data, the support strength of the cover plate is analyzed, and the stability and reliability of the cover plate in the actual welding process are evaluated.

[0090] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy box-shaped four-sided water channel steering structure, comprising a box (1), characterized in that: A water channel structure (2) is provided on the outer surface of the box (1), and a pipe (4) is fixedly connected to the left side of the box (1). A pipe dustproof device (3) is provided on the inner surface of the pipe (4). The water channel structure (2) of the box includes a main flow channel plate (202), and multiple sets of baffles (203) are fixedly connected to the inner surface of the main flow channel plate (202). A flow channel pipe (205) is fixedly connected to the end of the main flow channel plate (202) away from the pipe (4). A side flow channel plate (204) is fixedly connected to the end of the flow channel pipe (205) away from the main flow channel plate (202). A drain plate (201) is fixedly connected to the left side of the main flow channel plate (202). An FSW cover plate (206) is fixedly connected to the outer surface of the box (1).

2. The aluminum alloy box body four-sided waterway turning structure according to claim 1, characterized in that, The dustproof device (3) for the pipeline includes a connecting plate (301), an inner shaft (305) is fixedly connected to the inner side of the connecting plate (301), an outer shaft (302) is rotatably connected to the outer arc surface of the inner shaft (305), a baffle plate (303) is fixedly connected to the lower end of the outer arc surface of the outer shaft (302), and a limit plate (304) is fixedly connected to the lower end of the connecting plate (301).

3. The aluminum alloy box body four-sided waterway turning structure according to claim 1, characterized in that, The box (1) has arc-shaped grooves on all four sides (front, back, left, and right), and a through hole is provided at the lower left side of the box (1). The inner wall of the box (1) has arc-shaped grooves.

4. The aluminum alloy box body four-sided waterway turning structure according to claim 1, characterized in that, The positive flow channel plate (202) is provided in two sets, and the two sets of positive flow channel plates (202) are symmetrically distributed with the center line of the box (1) as the axis of symmetry. A through hole is opened on the left side of the front positive flow channel plate (202). The flow channel pipe (205) is provided in multiple sets, and the spacing between the multiple sets of flow channel pipes (205) is the same.

5. The aluminum alloy box body four-sided waterway turning structure according to claim 1, characterized in that, The inner surface of the main flow channel pipe (202) has multiple sets of rectangular flow channels, the inner surface of the side flow channel plate (204) has multiple sets of rectangular flow channels, and the left side of the drainage plate (201) has a through hole.

6. The aluminum alloy box body four-sided waterway turning structure according to claim 1, characterized in that, The interior of the drainage board (201) is hollow. The outer surface of the FSW cover plate (206) is fixedly connected to the box body (1) by FSW welding. A through hole is provided on the left side of the FSW cover plate (206).

7. The aluminum alloy box body four-sided waterway turning structure according to claim 2, characterized in that, The outer surface of the connecting plate (301) is fixedly connected to the pipe (4), and a rectangular groove is provided at the center of the inner surface of the connecting plate (301). The outer arc surface of the inner shaft (305) is elastically connected to the outer shaft (302) through a spiral spring.

8. The aluminum alloy box body four-sided waterway turning structure according to claim 2, characterized in that, The inner surface of the outer shaft (302) has a through hole at its center, the lower end of the baffle plate (303) is set as an arc surface, and the outer surface of the limiting plate (304) is in contact with the baffle plate (303).

9. The test method for the four-sided waterway turning structure of the aluminum alloy box according to claim 1, characterized in that, Includes the following steps: S1: Preparations Prepare testing equipment and tools, and ensure their proper functioning and accuracy, including water pressure gauges and measuring instruments; S2: Visual Inspection Carefully inspect the appearance of the aluminum alloy enclosure to ensure that there is no damage or defects on the surface, so as not to affect the test results; S3: Performance Testing Pressure tests were conducted on the four-sided water channel turning structure of the aluminum alloy box to observe its performance under different water pressures and record the relevant data. S4: Support Strength Test The stress conditions of the cover plate during the actual welding process were simulated, including support force, bending moment and torque, to verify the support strength of each cover plate during FSW welding; S5: Durability Test Long-term operation tests were conducted on the four-sided water channel steering structure of the aluminum alloy tank to verify its stability and durability. S6: Data Analysis The test data were organized and analyzed to obtain the performance parameters and evaluation results of the four-sided waterway turning structure of the aluminum alloy box. S7: Test Report Based on the test results and analysis, write a detailed test report, including the test objectives, test methods, test results, and conclusions.

10. The test method for the four-sided waterway turning structure of the aluminum alloy box according to claim 1, characterized in that, The S4 support strength test is mainly used to assess the stability of the cover plate during FSW welding, and includes the following steps: S401: Dimension Measurement The aluminum alloy enclosure is placed on a stable test platform, and the dimensions and position of the aluminum alloy enclosure are precisely measured using measuring tools to ensure the accuracy of the test data. S402: Establish a supporting model Based on the data measured in S401, a three-dimensional model of the cover plate is established, and multiple sets of pressure detection electrodes are attached to the surface of the cover plate. At the same time, a support device is used to support the cover plate to simulate the stress situation of the cover plate in the actual welding process, including support force, bending moment and torque. The stress state is displayed in different colors in the three-dimensional modeling graphics. S403: Critical State Detection Gradually increase the force applied by the support device, observe the deformation and stability of the cover plate, and record the relevant data; S404: Data Summary and Analysis Based on the test data, the support strength of the cover plate was analyzed, and its stability and reliability in the actual welding process were evaluated.