Optimized manufacturing method and system of composite copper-aluminum block and electronic equipment

Abstract

The invention discloses an optimized manufacturing method and system for a composite copper-aluminum block and electronic equipment, and relates to the technical field of metal composite part machining and welding. The method comprises the steps that firstly, a copper block embedding hole is punched in an aluminum block, and after surface pretreatment and damage detection are qualified, the copper block embedding hole is reserved; processing the copper block until the outer contour is matched with the copper block embedding hole, and performing surface pretreatment and damage detection to obtain qualified copper block for later use; and copper blocks are placed in the copper block embedding holes and welded into composite copper-aluminum blocks through ultrasonic torque, and the composite copper-aluminum blocks are packaged, registered and warehoused after being detected to be qualified. The method solves the technical problems of high manufacturing cost and unstable quality caused by high overall purchase cost of copper-aluminum composite plates, high threshold of rolling and pressing equipment, easy generation of brittle compounds and pore cracks in laser welding and difficulty in parameter control in the existing manufacturing of the composite copper-aluminum blocks, and achieves the purposes of low-cost manufacturing of the composite copper-aluminum blocks, reduction of the threshold of the equipment and high production efficiency. Laser welding defects are avoided, and the technical effects of high weld strength, excellent conductivity and stable quality of a finished product are guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal composite part processing and welding, in particular to an optimized manufacturing method and system of a composite copper-aluminum block and an electronic device. BACKGROUND

[0002] The composite copper-aluminum block is a key component in application scenarios such as new energy battery covers, and the manufacturing quality of the composite copper-aluminum block directly affects the performance of terminal products. In the prior art, copper-aluminum composite parts are mostly manufactured by overall procurement of copper-aluminum composite plates or laser welding and rolling and pressing processes. The former is priced according to the price of pure copper, and the material cost is high, and special production is required for different specifications, and there is a minimum order quantity limit. In the latter, rolling and pressing rely on special equipment, and most enterprises cannot have the special equipment, and laser welding is difficult to control due to the large difference in melting point and thermal physical properties of copper and aluminum, and is prone to generate brittle compounds and pores and cracks, affecting the joint strength and electrical conductivity, and the process parameters are difficult to control. These problems result in high manufacturing cost, high equipment threshold and unstable quality of the composite copper-aluminum block, and it is difficult to meet the manufacturing requirements of the new energy field for low cost and high performance. SUMMARY

[0003] The application provides an optimized manufacturing method and system of a composite copper-aluminum block and an electronic device, and aims to solve the technical problems of high cost of overall procurement of copper-aluminum composite plates, high threshold of rolling and pressing equipment, and difficult control of parameters in laser welding, which result in high manufacturing cost and unstable quality in the manufacturing of the existing composite copper-aluminum block.

[0004] In a first aspect, the application provides an optimized manufacturing method of a composite copper-aluminum block, which comprises the following steps: stamping a copper block embedding hole in an aluminum block to obtain a processed aluminum block; performing surface pretreatment on the processed aluminum block, and performing surface damage detection on the pretreated aluminum block to obtain an aluminum block damage detection result; when the aluminum block damage detection result is qualified, the pretreated aluminum block is reserved; processing a copper block to make the outer contour of the copper block the same as the inner contour of the copper block embedding hole, to obtain a processed copper block; performing surface pretreatment on the processed copper block, and detecting whether the surface of the pretreated copper block is damaged to obtain a copper block damage detection result; when the copper block damage detection result is qualified, the pretreated copper block is reserved; placing the pretreated copper block in the copper block embedding hole, and welding the pretreated copper block and the pretreated aluminum block by an ultrasonic torque welding device to form a composite copper-aluminum block; detecting whether the surface of the composite copper-aluminum block is damaged to obtain a composite block damage detection result; and when the composite block damage detection result is qualified, the composite copper-aluminum block is packed and registered in a warehouse.

[0005] In a second aspect of the present application, an optimized manufacturing system of a composite copper-aluminum block is provided, which comprises: a machined aluminum block acquisition module configured to punch a copper block embedding hole on an aluminum block to obtain a machined aluminum block; an aluminum block damage detection result acquisition module configured to pretreat the surface of the machined aluminum block and detect surface damage of the pretreated aluminum block to obtain an aluminum block damage detection result; a pretreated aluminum block acquisition module configured to reserve the pretreated aluminum block when the aluminum block damage detection result is qualified; a machined copper block acquisition module configured to machine a copper block to have the same outer contour as the inner contour of the copper block embedding hole to obtain a machined copper block; a copper block damage detection result acquisition module configured to pretreat the surface of the machined copper block and detect whether the surface of the pretreated copper block is damaged to obtain a copper block damage detection result; a pretreated copper block acquisition module configured to reserve the pretreated copper block when the copper block damage detection result is qualified; a composite copper-aluminum block acquisition module configured to place the pretreated copper block in the copper block embedding hole and weld the pretreated copper block and the pretreated aluminum block by an ultrasonic torque welding device to form a composite copper-aluminum block; a composite block damage detection result acquisition module configured to detect whether the surface of the composite copper-aluminum block is damaged to obtain a composite block damage detection result; and a composite copper-aluminum block registration module configured to package and register the composite copper-aluminum block in storage when the composite block damage detection result is qualified.

[0006] In a third aspect of the present application, an electronic device is provided, which comprises: a memory configured to store executable instructions; and a processor configured to execute the executable instructions stored in the memory to implement an optimized manufacturing method of a composite copper-aluminum block.

[0007] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0008] The present application punches a copper block embedding hole on an aluminum block and performs pretreatment and detection, simultaneously machines a copper block into a structure matching the inner contour of the embedding hole and performs pretreatment and detection, then places a qualified copper block into the embedding hole, welds to form a composite copper-aluminum block by an ultrasonic torque welding device, finally detects surface damage of the composite block, and packages and registers in storage and generates an identification code when qualified to adapt to new energy battery cover plate applications, thereby realizing low-cost and high-quality manufacturing of the composite copper-aluminum block, making the finished product meet the demand for high conductivity and high weld strength, achieving the technical effects of low-cost manufacturing of the composite copper-aluminum block, reducing the equipment threshold, avoiding laser welding defects, and ensuring high weld strength, high conductivity, and stable quality of the finished product. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to make the technical solutions in the embodiments of the present application clearer, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0010] Figure 1 is a flowchart of an optimized manufacturing method of a composite copper-aluminum block provided by the present application.

[0011] Figure 2 is a structural diagram of an optimized manufacturing system of a composite copper-aluminum block provided by the present application.

[0012] Figure 3 is a structural diagram of an electronic device provided by the present application.

[0013] Figure 4 is an overall view of a composite copper-aluminum block provided by the present application.

[0014] Figure 5 is a separate view of a copper block and an aluminum block provided by the present application.

[0015] Figure 6 is an overall view of a copper block provided by the present application.

[0016] Legend: processed aluminum block acquisition module 1, aluminum block damage detection result acquisition module 2, pretreated aluminum block acquisition module 3, processed copper block acquisition module 4, copper block damage detection result acquisition module 5, pretreated copper block acquisition module 6, composite copper-aluminum block acquisition module 7, composite block damage detection result acquisition module 8, composite copper-aluminum block registration module 9, composite copper-aluminum block 10, aluminum block 11, copper block 12, copper block embedding hole 111, first stepped hole 121, second stepped hole 122, input device 301, processor 302, memory 303, output device 304. DETAILED DESCRIPTION

[0017] The present application provides an optimized manufacturing method and system of a composite copper-aluminum block, and an electronic device, to solve the technical problems of high overall procurement cost of copper-aluminum composite plates, high threshold of rolling and pressing equipment, easy production of brittle compounds and gas hole cracks in laser welding and difficult control of parameters in the manufacturing of existing composite copper-aluminum blocks, resulting in high manufacturing cost and unstable quality.

[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first", "second", etc. in the specification of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0020] Embodiment one, as shown in Figure 1 , Figure 4 , Figure 5 , Figure 6 An optimized manufacturing method of a composite copper-aluminum block, wherein the method comprises:

[0021] Step A100: punching a copper block embedding hole 111 on the aluminum block 11 to obtain a processed aluminum block 11.

[0022] Specifically, in the manufacturing process of the composite copper-aluminum block 10, first, the aluminum block 11 is processed, and the core step is to punch a copper block embedding hole 111 on the aluminum block 11 to obtain a processed aluminum block 11. The punching process needs to determine the inner contour parameters of the embedding hole according to the design size of the subsequent copper block 12, to ensure that the shape and size of the copper block embedding hole 111 completely match the outer contour of the copper block 12 to be processed, and to lay a foundation for the accurate embedding of the subsequent copper block 12. From the process execution logic, the basic specifications of the aluminum block 11 are determined according to the application requirements of the composite copper-aluminum block 10, such as the assembly requirements of the new energy battery cover plate, and then a predetermined punching pressure and punching speed are applied by the punching equipment to form a copper block embedding hole 111 at a specified position of the aluminum block 11. The copper block embedding hole 111 is specifically designed as a stepped hole structure, which can more easily make the two end faces of the copper block 12 and the two end faces of the aluminum block 11 remain in the same plane when the copper block 12 is embedded, thereby improving the overall structural flatness of the composite copper-aluminum block 10.

[0023] After the aluminum block 11 is punched, the processed aluminum block 11 needs to be surface pretreated to remove oil stains, metal debris and surface oxide layers that may be left over during the punching process, so as to avoid the influence of these impurities on the subsequent welding quality. The specific pretreatment steps are as follows: first, the processed aluminum block 11 is surface cleaned using a cleaning agent to obtain a cleaned aluminum block 11; then, the cleaned aluminum block 11 is surface dried to obtain a pretreated aluminum block 11. After the pretreatment is completed, the surface damage of the pretreated aluminum block 11 needs to be detected, and whether the aluminum block 11 surface has scratches, deformation, indentation and other damages is checked by visual detection or non-destructive detection equipment. If the detection result is qualified, the pretreated aluminum block 11 is ready for use; if the detection result is unqualified, the aluminum block 11 is scrapped to ensure that the aluminum block 11 entering the next link meets the quality standard.

[0024] By first punching a stepped copper block embedding hole 111 on the aluminum block 11 matching the outer contour of the copper block 12, and then surface pretreating by cleaning and drying, and strictly surface damage detection, the effect of providing a qualified aluminum block 11 base material for subsequent precise embedding and reliable welding of the copper block 12 is achieved.

[0025] Step A200: Surface pretreatment is performed on the processed aluminum block 11, and surface damage detection is performed on the pretreated aluminum block 11 to obtain an aluminum block 11 damage detection result.

[0026] Optionally, first, surface pretreatment is performed on the processed aluminum block 11, the processed aluminum block 11 is cleaned using a cleaning agent to obtain a cleaned aluminum block 11, and then surface drying treatment is performed on the cleaned aluminum block 11 to obtain a pretreated aluminum block 11. The specific steps are described in detail in A210-A220.

[0027] In the manufacturing process of the composite copper-aluminum block 10, after the aluminum block 11 completes the cleaning and drying of surface pretreatment, surface damage detection needs to be performed on the pretreated aluminum block 11 immediately to screen out qualified aluminum blocks 11 that meet the subsequent processing requirements, so as to avoid the influence of aluminum block 11 surface defects on the quality of the final composite copper-aluminum block 10. Before detection, the detection standard needs to be determined first, and the allowable damage threshold of the aluminum block 11 surface is clear, for example, the scratch depth is not more than 0.05 millimeters, the area of a single indentation is not greater than 2 square millimeters, there is no through crack and obvious deformation. The standard needs to match the structural strength and appearance requirements of the composite copper-aluminum block 10 for the new energy battery cover plate.

[0028] During the detection process, a visual detection device is used in combination with non-destructive testing technology. First, the pretreated aluminum block 11 is fixed on the detection workbench to ensure that the surface of the aluminum block 11 is not obstructed and is within the effective recognition range of the detection device. The visual detection device uses a high-definition camera with a resolution of not less than 12 million pixels to scan the surface of the aluminum block 11 comprehensively to obtain high-definition image data of the surface of the aluminum block 11. The scanning range needs to cover the entire outer surface of the aluminum block 11 and the inner wall of the copper block embedded hole 111 to avoid missing local damage.

[0029] Subsequently, the scanned image data is transmitted to the data analysis system. The system compares the image of the surface of the aluminum block 11 with the preset standard non-damaged aluminum block 11 image through an image comparison algorithm, identifies possible scratches, depressions, oxidation spots and other damages, and quantitatively measures the size, depth, area and length of the damage.

[0030] After data analysis, the system determines the surface state of the aluminum block 11 according to the preset damage threshold. If the detected damage is within the allowable threshold range, the aluminum block 11 damage detection result is determined to be qualified, and the aluminum block 11 is marked as standby and transferred to the subsequent copper block 12 embedding and welding process. If the detected damage exceeds the allowable threshold, for example, there is a scratch with a depth greater than 0.05 mm or a depression with an area greater than 2 square mm, the aluminum block 11 damage detection result is determined to be unqualified, and the aluminum block 11 is classified separately and processed according to the scrap process to avoid unqualified aluminum blocks 11 entering the next step and causing material and process waste.

[0031] By first determining the damage detection standard, then using a high-definition visual detection device to scan the surface of the aluminum block 11 to obtain image data and analyzing and determining by the system, the aluminum block 11 damage detection result is obtained, which achieves the effect of removing aluminum blocks 11 with surface damage exceeding the standard in advance and ensuring the stability of the quality of subsequent copper-aluminum composite processing.

[0032] Step A300: When the aluminum block 11 damage detection result is qualified, the pretreated aluminum block 11 is standby.

[0033] In an embodiment of the present application, first, the qualified pretreated aluminum block 11 needs to be labeled. The identification information should include the processing batch number, detection time, detection personnel number and other key data of the aluminum block 11 to ensure that each standby aluminum block 11 can be traced and quickly locate the source when problems occur in the subsequent process. The identification can be in the form of laser coding, and the coding position is selected on the non-key assembly surface of the aluminum block 11. The coding character height is controlled to be 1.5-2 mm to ensure clear identification and not affect the subsequent embedding accuracy of the aluminum block 11.

[0034] After the identification is completed, the qualified pre-processed aluminum block 11 needs to be classified and stored. According to the size of the aluminum block 11, such as length, width, thickness and the hole diameter of the copper block embedded hole 111, etc., grouping is carried out, and aluminum blocks 11 of the same specification are placed in the same storage tray. The stacking height of aluminum blocks 11 in each tray does not exceed 10 layers to avoid deformation of aluminum blocks 11 due to excessive stacking, affecting the flatness and subsequent embedding effect. At the same time, the storage environment needs to meet the requirements of dryness and dustlessness, and the environmental temperature is controlled at 20-25°C, and the relative humidity is maintained at 40%-60%, to prevent the aluminum block 11 from being oxidized or damp during standby due to environmental factors, and to ensure the stability of the surface state of the aluminum block 11.

[0035] During storage, a standby aluminum block 11 inventory account needs to be established to record the quantity, specification, storage time and storage location of each batch of qualified aluminum block 11 in real time. The account is updated immediately after each qualified aluminum block 11 storage operation is completed to ensure the accuracy of the inventory data, facilitate the subsequent quick retrieval of aluminum blocks 11 of the corresponding specification according to the copper block 12 processing progress and welding process requirements, and avoid production stagnation due to mismatched aluminum block 11 specifications or inaccurate inventory information.

[0036] By traceable identification, classification and storage of pre-processed aluminum blocks 11 that have passed damage detection in a specific environment and establishing a real-time inventory account, the aluminum blocks 11 are transferred to a standby state, achieving the effect of ensuring stable quality of standby aluminum blocks 11, facilitating accurate retrieval of subsequent processes, and improving the overall manufacturing efficiency of composite copper-aluminum blocks 10.

[0037] Step A400: Process the copper block 12 so that the outer contour of the copper block 12 is the same as the inner contour of the copper block embedded hole 111, and obtain the processed copper block 12.

[0038] Specifically, first, the step of processing the copper block 12 is performed: an inner hole is provided on the copper block 12, which includes a first stepped hole 121 and a second stepped hole 122, and a chamfer is provided at the end of the second stepped hole 122 of the inner hole away from the first stepped hole 121. The specific steps are described in detail in A410.

[0039] Then, the key size data of the copper block embedded hole 111 on the aluminum block 11 is extracted, including the hole diameter, depth and shape of the embedded hole, such as the diameter and height of each step of the stepped hole. These data need to be obtained by a three-coordinate measuring instrument to ensure that the measurement accuracy is controlled within ±0.01 mm, providing accurate size basis for copper block 12 processing, avoiding excessive gap or excessive interference during subsequent embedding.

[0040] Then according to the obtained profile size of the copper block embedded hole 111, a copper material blank meeting the purity requirement is selected, such as T2 red copper, and the conductivity is greater than or equal to 98%, which is suitable for the conductive requirement of the new energy battery cover plate. The outer profile of the copper block 12 is roughly processed through a numerical control lathe or a milling machine. The cutting speed is set to 600-800 revolutions per minute, and the feed amount is 0.2-0.3 millimeters per revolution in the rough processing stage. The excess part of the copper material blank is quickly removed, so that the outer profile of the copper block 12 is preliminarily close to the profile size of the embedded hole, and a finishing allowance of 0.1-0.2 millimeters is reserved to prevent the tool from being worn too quickly or the surface of the copper block 12 from being overheated and deformed due to direct finishing.

[0041] After the rough processing is completed, the outer profile of the copper block 12 is finished. High-precision grinding equipment or precision cutting tools are used to adjust the processing parameters according to the fine parameters of the embedded hole profile. The cutting speed is increased to 1000-1200 revolutions per minute, and the feed amount is reduced to 0.05-0.1 millimeters per revolution. The size deviation between the outer profile of the copper block 12 and the profile of the embedded hole is gradually reduced through multiple passes. After each pass, the size of the key parts of the outer profile of the copper block 12 is detected using a micrometer or a laser diameter gauge to ensure that the diameter and step height of the final outer profile of the copper block 12 have an error of not more than ±0.02 millimeters with the corresponding parameters of the profile of the embedded hole, and the shape is completely consistent. For example, when the copper block embedded hole 111 is a stepped hole, the outer profile of the copper block 12 also needs to be processed to have a stepped structure.

[0042] After the finishing is completed, the surface of the copper block 12 is preliminarily cleaned to remove metal debris and burrs generated during processing, so as to avoid the influence of residual debris on the quality of subsequent embedding or welding. After cleaning, visual detection is performed again to confirm that there is no obvious scratch or deformation on the outer profile of the copper block 12, and finally the processed copper block 12 with the same outer profile as the profile of the copper block embedded hole 111 is obtained.

[0043] By first measuring the accurate size of the profile of the copper block embedded hole 111, then rough processing and finishing the copper material blank, and adjusting and detecting multiple times, the outer profile of the copper block 12 is the same as the profile of the copper block embedded hole 111, and the processed copper block 12 is obtained, which achieves the effect of ensuring that the copper block 12 can be accurately embedded into the aluminum block 11 and laying a foundation for forming a stable structure for subsequent welding.

[0044] Step A500: surface pretreatment is performed on the processed copper block 12, and whether the surface of the pretreated copper block 12 is damaged is detected to obtain a copper block 12 damage detection result.

[0045] Specifically, first, the processed copper block 12 is subjected to surface pickling treatment to obtain a pickled copper block 12, then the pickled copper block 12 is subjected to surface drying to obtain a dried copper block 12, and finally the dried copper block 12 is subjected to surface nickel plating treatment to obtain a pretreated copper block 12. The specific steps are described in detail in A510-A530.

[0046] After the copper block 12 is subjected to surface pretreatment of pickling, drying, and nickel plating, surface damage detection is immediately carried out to screen out qualified copper blocks 12 that meet the requirements of subsequent embedding and welding, so as to avoid the influence of surface defects of the copper block 12 on the quality of the final composite part. Before detection, the damage judgment standard needs to be determined first. According to the performance requirements of the new energy battery cover plate on the composite copper-aluminum block 10, the damage threshold is set: the surface scratch depth of the copper block 12 is not more than 0.03 mm, the area of a single depression is not greater than 1.5 square millimeters, the nickel plating layer has no shedding or pinholes, and the inner walls of the first step hole 121 and the second step hole 122 of the inner hole have no cracks or burrs, so as to ensure that the detection results can match the requirements of subsequent welding strength and conductivity.

[0047] The detection process is carried out in a combination of visual detection and non-destructive detection. First, the pretreated copper block 12 is fixed on a detection tooling table, which needs to ensure the stable position of the copper block 12 and has no obstruction. The outer surface and inner wall of the inner hole of the copper block 12 are scanned by a high-definition industrial camera in all directions. The scanning range covers every face of the copper block 12, including the step face and chamfered area of the step hole, and the scanning speed is controlled at 2-3 seconds / block, so as to ensure efficient acquisition of surface image data. At the same time, a eddy current detection device is used to detect the nickel plating layer of the copper block 12. The eddy current detection frequency is set at 50-100 kHz, and the detection signal change is used to judge whether the nickel plating layer has local insufficient thickness or shedding problems, so as to make up for the limitations of visual detection in identifying internal defects of the plating layer.

[0048] Then, the image data obtained by visual scanning and the eddy current detection data are transmitted to a data analysis system synchronously. The data analysis system compares the surface image of the copper block 12 with the preset standard non-damaged copper block 12 image at the pixel level by using an image comparison algorithm, automatically identifies appearance defects such as scratches and depressions, and quantitatively calculates the defect size. At the same time, the eddy current detection data are used to judge the integrity of the nickel plating layer. If the detected defects are all within the set threshold range and the nickel plating layer has no abnormalities, it is determined that the damage detection result of the copper block 12 is qualified. If there are scratches with a depth exceeding 0.03 mm, depressions with an area greater than 1.5 square millimeters, or nickel plating layer shedding, etc., it is determined that the detection result is unqualified. The unqualified copper block 12 will be classified and stored, and will be processed according to the scrap process in the subsequent process, so as to avoid material and time waste caused by flowing into the next process.

[0049] By setting the copper block 12 surface damage judgment standard first, then using high-definition visual detection combined with eddy current detection to obtain data and system analysis to determine the copper block 12 damage detection results, the copper block 12 with surface damage exceeding the standard is removed in advance, and the copper-aluminum welding quality and the performance stability of the composite copper-aluminum block 10 are ensured.

[0050] Step A600: When the copper block 12 damage detection result is qualified, the pretreated copper block 12 is reserved.

[0051] Specifically, first, the qualified pretreated copper block 12 needs to be uniquely identified. The identification information should include the processing batch of the copper block 12, the detection time, the detection equipment number and other key data to ensure that each reserved copper block 12 has full-process traceability capability, facilitating quick positioning of the source when problems occur in subsequent processes. The identification is in the form of laser coding, and the coding position is selected on the non-key surface of the copper block 12, such as the side away from the inner hole. The character height is controlled at 1.2-1.8 mm, and the character clarity needs to meet the requirement of being clearly recognizable at a distance of 1 meter under natural light to avoid affecting the subsequent embedding accuracy of the copper block 12.

[0052] After the identification is completed, the copper block 12 needs to be stored according to its specification parameters. According to the outer contour size of the copper block 12 including length, width, thickness and the inner hole structure parameters including the hole diameter and depth of the first step hole 121 and the second step hole 122, the qualified copper blocks 12 of the same specification are grouped and placed in a dedicated anti-static storage box. The number of copper blocks 12 stored in each storage box does not exceed 20, and the copper blocks 12 need to be separated by soft cushioning materials such as silica gel pads to prevent scratches or deformation of the copper blocks 12 due to collision during storage, and to prevent wear of the nickel plating layer. The storage environment needs to meet the requirements of dryness, dustlessness and constant temperature, with the environmental temperature controlled at 18-22℃ and the relative humidity maintained at 35%-50%. Dehumidification equipment and dust filtration system are provided to prevent oxidation or dust adhesion on the surface of the copper block 12, ensuring the stability of the surface state of the copper block 12 after pretreatment.

[0053] In addition, a standby inventory account of qualified copper blocks 12 needs to be established to record the specification, quantity, storage time and storage location of each batch of qualified copper blocks 12 in real time. The account is managed electronically, and the account data needs to be updated within 30 minutes after each qualified copper block 12 is stored to ensure that the inventory information is consistent with the actual storage situation. At the same time, according to the production plan of the subsequent welding process, the corresponding specification of the standby copper block 12 is retrieved 1-2 hours in advance. The identification information needs to be checked by scanning the code to confirm that the specification of the copper block 12 matches the production demand to avoid production delay due to specification mismatch and ensure the continuity of the manufacturing process of the composite copper-aluminum block 10.

[0054] The pre-processed copper block 12 that passes the damage detection is uniquely identified, stored in a specific environment according to specifications, and an electronic real-time account is established to transfer it to a standby state, which ensures stable quality of standby copper block 12, realizes precise tracing and efficient retrieval, and supports the orderly development of subsequent copper-aluminum embedded welding process.

[0055] Step A700: Place the pre-processed copper block 12 in the copper block embedding hole 111, and use the ultrasonic torque welding equipment to weld the pre-processed copper block 12 and the pre-processed aluminum block 11 to form a composite copper-aluminum block 10.

[0056] Specifically, first, the standby pre-processed aluminum block 11 is fixed on the welding tooling table, which is equipped with a positioning clamp to ensure that the copper block embedding hole 111 of the aluminum block 11 is in a horizontal and central position with a positioning accuracy of ±0.02 mm to avoid displacement when placing the copper block 12 later. Then, a mechanical arm is used to grab the standby pre-processed copper block 12, with a grabbing force of 5-8 N to prevent deformation of the copper block 12 due to excessive force or falling of the copper block 12 due to insufficient force. After grabbing, the copper block 12 is accurately aligned with the copper block embedding hole 111 of the aluminum block 11 and slowly placed into the hole to ensure that the outer contour of the copper block 12 completely matches the inner contour of the embedding hole, and the two end faces of the copper block 12 are flush with the two end faces of the aluminum block 11. After embedding, visual inspection is performed to confirm that the embedding position is correct to avoid the copper block 12 being skewed or not fully embedded.

[0057] After confirming the correct embedding, the ultrasonic torque welding equipment is started for welding operation. First, the welding parameters are adjusted according to the specification parameters of the copper block 12 and the aluminum block 11, for example, the copper block 12 has a diameter of 8-10 mm, and the aluminum block 11 has a thickness of 5-8 mm. The ultrasonic vibration frequency is set to 20-30 kHz, the welding torque is set to 15-25 N·m, the welding pressure is set to 30-50 N, and the welding time is controlled to 2-4 seconds. These parameters need to match the thermal physical property differences of copper and aluminum metals. Local friction heat generated by high-frequency vibration rapidly heats the contact interface of the copper block 12 and the aluminum block 11 to a plastic state, and at the same time, under the action of torque and pressure, atomic diffusion bonding is achieved, avoiding the use of third-party filler metal and reducing the impact on electrical conductivity. During the welding process, the equipment needs to monitor the stability of the vibration frequency, torque, and pressure in real time. If the parameters exceed the set range, such as the torque suddenly dropping below 10 N·m, the equipment needs to stop welding immediately, investigate the abnormal reason, and then re-weld to ensure the reliability of the welding process.

[0058] After the welding is completed, the ultrasonic torque welding device is turned off, and the copper-aluminum composite structure is naturally cooled to room temperature, which takes about 5-8 minutes. Then, the composite block is removed from the workbench. At this time, the copper block 12 and the aluminum block 11 have been welded together to form a whole, i.e., the composite copper-aluminum block 10. After removal, a preliminary visual inspection of the welded portion of the composite block is required to confirm that there are no obvious cracks, pores or deformations in the weld, and that the copper block 12 and the aluminum block 11 do not show signs of separation, in preparation for subsequent composite block damage detection.

[0059] By first precisely embedding the pretreated copper block 12 into the copper block embedding hole 111 of the pretreated aluminum block 11, and then using an ultrasonic torque welding device with set parameters to weld, a composite copper-aluminum block 10 is formed, achieving reliable copper-aluminum connection, ensuring weld strength and electrical conductivity, and laying a foundation for subsequent composite block quality detection.

[0060] Step A800: Detect whether there are damages on the surface of the composite copper-aluminum block 10 to obtain the composite block damage detection result.

[0061] Specifically, before detection, the damage judgment criteria of the composite block need to be first determined, combining the welding process characteristics and the terminal product requirements, and setting key indicators: for example, the surface scratch depth of the composite block is not more than 0.04 mm, the area of a single indentation is not greater than 2.5 square millimeters, there are no cracks, pores or incomplete welding phenomena in the weld, and there is no obvious misalignment at the joint edge of the copper block 12 and the aluminum block 11, ensuring the structural strength and electrical stability of the composite block.

[0062] Next, the detection process uses a combination of visual global scanning and weld-specific detection. First, the composite copper-aluminum block 10 is fixed on a high-precision detection platform, with a positioning accuracy of ±0.01 mm to ensure that the surface of the composite block is not blocked and is evenly stressed. The high-definition industrial camera scans the entire surface of the composite block, covering the outer surface of the aluminum block 11, the outer surface of the copper block 12, and the weld area of the two. The scanning speed is set to 1.5-2 seconds per block, and the surface image data is obtained simultaneously. For the key area of the weld, an optical microscope is additionally used for special observation with a magnification of 20-50 times, focusing on checking whether there are microscopic cracks, undercut or metal spatter residues in the weld, to make up for the shortcomings of conventional visual scanning in identifying microscopic defects.

[0063] Then the visual scanning data and the microscope observation results are transmitted to a data analysis system. The system performs pixel-level analysis on the surface image of the composite block by a defect recognition algorithm, automatically marks and quantifies the size of defects such as scratches and depressions; at the same time, in combination with the micro image of the weld area, it is judged whether the welding quality meets the standard. If the detected defects are all within the set threshold, and there is no abnormality in the weld, it is determined that the composite block damage detection result is qualified; if there are scratches deeper than 0.04 mm, depressions larger than 2.5 mm2, or cracks, pores and other problems in the weld, it is determined that the detection result is unqualified, and the unqualified composite copper-aluminum block 10 will be disposed of according to the standard process to avoid flowing into the subsequent storage link.

[0064] By first setting the surface damage judgment standard of the composite copper-aluminum block 10, then combining high-definition visual scanning with special optical microscope detection to obtain data and system analysis, the composite block damage detection result is obtained, which achieves the effect of screening out composite copper-aluminum blocks 10 with no over-standard damage on the surface and qualified weld quality, and guarantees the performance of the terminal application.

[0065] Step A900: When the composite block damage detection result is qualified, the composite copper-aluminum block 10 is packed and registered for storage.

[0066] Specifically, after the surface damage detection of the composite copper-aluminum block 10 is completed and the result is qualified, the packing and registration for storage operation is performed according to the standard to ensure that the finished product is stable in quality and traceable during storage and subsequent calling.

[0067] First, pre-treatment before packing is carried out, and qualified composite copper-aluminum blocks 10 are placed one by one on anti-static buffer trays. The number of stacked layers of composite blocks in each tray is not more than 8, and a soft silica gel pad with a thickness of 1-2 mm needs to be laid between adjacent composite blocks to avoid surface damage or weld stress deformation due to collision or friction during handling or storage. At the same time, a temporary identification card needs to be pasted on each tray, indicating the number of composite blocks in the tray, the specifications (such as length, width, thickness and inner hole parameters) and the detection qualified batch, providing basic information for subsequent registration and warehouse checking.

[0068] Next, the composite copper-aluminum block 10 is packed and registered for storage. The composite copper-aluminum block 10 is packed and registered for storage and a composite block identification code is generated. Based on the application requirements of new energy battery cover plates, the corresponding composite copper-aluminum block 10 is called based on the composite block identification code, and the specific steps are described in A910-A920.

[0069] By anti-static buffer packing of qualified composite copper-aluminum blocks 10, generation of unique composite block identification code and entry into the system, classification and storage in designated environment warehouse according to specifications and batches, the packing and registration for storage are completed, achieving the effects of guaranteeing the storage quality of composite copper-aluminum blocks 10, realizing the whole life cycle traceability and facilitating subsequent precise calling.

[0070] Further, the step A200 in the method provided by the embodiment of the present application comprises:

[0071] A210: surface cleaning of the processed aluminum block 11 using a cleaning agent to obtain a cleaned aluminum block 11.

[0072] A220: surface drying treatment of the cleaned aluminum block 11 to obtain the pretreated aluminum block 11.

[0073] Specifically, in the manufacturing process of the composite copper-aluminum block 10, after the aluminum block 11 completes the stamping processing of the copper block embedding hole 111, the surface pretreatment of the processed aluminum block 11 needs to be carried out immediately to eliminate the impurities and defects remaining in the processing process, so as to provide a clean and stable aluminum block 11 surface for the subsequent welding process.

[0074] First, the surface cleaning step is performed, and a neutral or weak alkaline cleaning agent is selected to comprehensively clean the processed aluminum block 11. The cleaning agent needs to uniformly cover the surface of the aluminum block 11 and the inner wall of the copper block embedding hole 111. Through the chemical action and physical infiltration of the cleaning agent with oil stains, metal debris and surface oxide layer, these impurities affecting the welding quality are completely removed. The cleaning process needs to control the cleaning agent temperature in the range of 25-40°C, and the cleaning time needs to be kept for 5-10 minutes to ensure that the impurities are fully dissolved or separated from the surface of the aluminum block 11. After the cleaning is completed, the cleaned aluminum block 11 with no obvious impurities on the surface is obtained.

[0075] After the cleaning is completed, the surface drying treatment of the cleaned aluminum block 11 needs to be carried out to remove the residual cleaning agent liquid and moisture after the cleaning, so as to avoid the generation of pores or affect the bonding strength of the welding interface in the subsequent welding process. The drying treatment needs to place the cleaned aluminum block 11 into a drying device, set the drying temperature to 80-120°C, and control the drying time to 15-20 minutes. Through the continuous temperature action, the moisture on the surface of the aluminum block 11 and the inner wall of the embedding hole is completely evaporated. At the same time, the uniformity of the temperature in the drying process needs to be ensured to prevent local high temperature from causing the surface of the aluminum block 11 to be oxidized or deformed. After the drying process is completed, the aluminum block 11 is taken out and the surface state thereof is checked. After confirming that there is no residual moisture and no oxidation spots, the pretreated aluminum block 11 meeting the subsequent processing requirements is obtained.

[0076] Through the use of the neutral or weak alkaline cleaning agent, the pretreated aluminum block 11 is obtained, which achieves the effect of removing the impurities and moisture on the surface of the aluminum block 11 and providing a qualified surface state for the copper-aluminum welding.

[0077] Further, the step A400 in the method provided by the embodiment of the present application comprises:

[0078] A410: setting an inner hole on the copper block 12, wherein the inner hole comprises a first stepped hole 121 and a second stepped hole 122, the inner hole is provided with a chamfer, and the chamfer is located on the end of the second stepped hole 122 away from the first stepped hole 121.

[0079] Optionally, after the aluminum block 11 is completed stamping and pre-treatment detection and is ready for use, the copper block 12 needs to be processed synchronously, the core is to make the outer contour of the copper block 12 completely match the inner contour of the copper block embedding hole 111 on the aluminum block 11, and at the same time, a specific structure inner hole is set on the copper block 12. First, according to the inner contour parameters of the copper block embedding hole 111, such as hole diameter, shape and depth, the initial specification of the copper block 12 is determined, the copper material blank with purity meeting the conductive demand of the new energy battery cover plate is selected, and the outer contour of the copper material blank is processed through a precise cutting equipment. In the processing process, the cutting speed is controlled to be 800-1200 revolutions per minute, and the feed amount is 0.1-0.2 millimeters per revolution, so that the size error of the outer contour of the copper block 12 is controlled within ±0.02 millimeters, and the processed copper block 12 can be accurately embedded into the copper block embedding hole 111 of the aluminum block 11.

[0080] After the outer contour of the copper block 12 is processed, an inner hole needs to be set on the copper block 12, which includes a first stepped hole 121 and a second stepped hole 122. First, a drilling equipment is used to process the first stepped hole 121 at the central axis position of the copper block 12, according to the demand of the pole column riveting fixation, the hole diameter of the first stepped hole 121 is set to be 8-10 millimeters, and the depth is 5-6 millimeters. In the drilling process, cooling lubricant is used to reduce the processing temperature and prevent the copper block 12 from deforming due to high temperature; then the second stepped hole 122 is continuously processed below the first stepped hole 121, the hole diameter of the second stepped hole 122 needs to be smaller than that of the first stepped hole 121, which is set to be 5-7 millimeters, and the depth is 3-4 millimeters. When processing, the coaxial error between the first stepped hole 121 and the second stepped hole 122 needs to be ensured to be not more than 0.01 millimeters, so as to ensure that the stress is uniform during the subsequent pole column riveting.

[0081] After the second stepped hole 122 is processed, a chamfer needs to be set on the end of the second stepped hole 122 away from the first stepped hole 121. A milling equipment is used to chamfer the end of the second stepped hole 122, the chamfer angle is set to be 45°, and the chamfer width is controlled to be 0.5-1 millimeters. Through the chamfer structure, the sharp edge at the end of the second stepped hole 122 can be avoided, the pole column component can be prevented from being scratched in the subsequent pole column assembly process, the stress concentration is reduced, and the stability of the overall structure of the copper block 12 is improved. After processing, the surface and the inner hole of the copper block 12 are preliminarily cleaned to remove the residual metal debris, so as to prepare for the subsequent surface pretreatment.

[0082] By first processing the outer contour of the copper block 12 according to the embedding hole parameters of the aluminum block 11, then sequentially processing the first stepped hole 121 and the second stepped hole 122 and setting a chamfer at the end of the second stepped hole 122, the processed copper block 12 meeting the embedding and assembly requirements is obtained, achieving the effect of enabling the copper block 12 to be precisely embedded in the aluminum block 11 and to be fixed by riveting and to improve the functional adaptability of the composite copper-aluminum block 10.

[0083] Further, the step A500 in the method provided by the embodiment of the application comprises:

[0084] A510: performing surface pickling treatment on the processed copper block 12 to obtain a pickled copper block 12.

[0085] A520: performing surface drying on the pickled copper block 12 to obtain a dried copper block 12.

[0086] A530: performing surface nickel plating treatment on the dried copper block 12 to obtain the pretreated copper block 12.

[0087] Specifically, first, surface pickling treatment is performed, the processed copper block 12 is placed in a prepared pickling solution, the pickling solution is selected to be a sulfuric acid solution with a concentration of 10%-15%, the solution temperature is controlled at 40-50°C, the copper block 12 is ensured to be completely immersed in the solution, and the pickling time is set to 3-5 minutes. In this process, the pickling solution reacts with the oxide layer (such as copper oxide) on the surface of the copper block 12 to completely dissolve and remove the oxide layer, and at the same time, the pickling solution cleans the residual metal debris and oil stains, after the pickling is completed, the copper block 12 is taken out of the solution, the surface residual pickling solution is rinsed with deionized water to avoid continuous corrosion of the copper block 12 by the solution, and finally the pickled copper block 12 without an oxide layer on the surface is obtained.

[0088] After the pickling is completed, the pickled copper block 12 needs to be subjected to surface drying treatment to prevent water residues from affecting the quality of subsequent nickel plating. The pickled copper block 12 is placed in a hot air drying device, the drying temperature is set to 100-120°C, the drying time is 15-20 minutes, and during the drying process, the air in the device is kept circulating to ensure that the moisture on the surface of the copper block 12 and in the first stepped hole 121 and the second stepped hole 122 is completely evaporated. After the drying is completed, the copper block 12 is taken out and visually observed to confirm that the surface is free of water marks and moisture marks, if local areas that are not dried are found, the copper block 12 needs to be re-placed in the device for additional drying for 10-15 minutes until the surface of the copper block 12 is completely dried, and the dried copper block 12 is obtained.

[0089] Finally, the dried copper block 12 is subjected to surface nickel plating treatment, and an electrolytic nickel plating process is adopted. The dried copper block 12 is placed as a cathode in a nickel plating electrolyte, and the main components of the electrolyte are nickel sulfate, nickel chloride and boric acid. The electrolyte temperature is controlled at 50-60°C, and the current density is set at 2-3 A / dm2. After power-on, the nickel ions in the nickel plating electrolyte are deposited on the surface of the copper block 12 to form a uniform nickel plating layer, and the plating layer thickness is controlled at 5-10 microns, which can not only improve the corrosion resistance of the surface of the copper block 12, but also improve the metallurgical compatibility of the copper block 12 and the aluminum block 11 during welding, avoiding the generation of brittle compounds due to direct contact between copper and aluminum. After nickel plating is completed, the copper block 12 is taken out of the electrolyte, the surface residual electrolyte is rinsed with deionized water, and then placed in a drying device for secondary drying to obtain the pretreated copper block 12.

[0090] By sequentially treating and secondary drying the processed copper block 12, the pretreated copper block 12 is obtained, achieving the effects of removing the surface oxide layer and impurities of the copper block 12, improving corrosion resistance and welding compatibility.

[0091] Further, the step A900 in the method provided by the embodiment of the application comprises:

[0092] A910: The composite copper-aluminum block 10 is packed and registered in the warehouse to generate a composite block identification code.

[0093] A920: Based on the application requirements of the new energy battery cover plate, the composite copper-aluminum block 10 is called according to the composite block identification code.

[0094] Specifically, first, the packing operation of the composite copper-aluminum block 10 is performed. According to the size of the composite block including length, width, thickness and batch quantity, anti-static and anti-collision packaging materials are selected, and the composite copper-aluminum blocks 10 of the same specification are classified and packaged in groups of 20. The composite blocks in each group are separated by a soft buffer pad with a thickness of 1.5 mm, and the outer layer is wrapped with 3 layers of anti-static packaging film to ensure that the package is tight and has no looseness, avoiding surface damage or welding deformation of the composite block due to friction and collision during handling. After packing is completed, each group of packaged composite copper-aluminum blocks 10 is subjected to preliminary information marking, and the marking content includes the processing batch, specification parameters and detection qualified time of the composite block, providing basic information for subsequent registration in the warehouse.

[0095] After the packaging is completed, the registration and warehousing link is entered. The packaged composite copper-aluminum block 10 is transported to the warehouse registration area, and the key information of the composite copper-aluminum block 10 is input through the warehouse management system, including the processing batch, the specification size, the quantity, the detection qualified result and the packaging time, and the system automatically generates a unique composite block identification code based on these information. The identification code adopts the form of 18-digit combination of numbers and letters, contains the traceability data of the whole production process of the product, and can be directly read through the code scanning equipment. Subsequently, according to the specification of the composite block and the subsequent application scene, the composite block is distributed to the corresponding storage partition in the warehouse. The storage partition needs to be marked with a clear area identification, which corresponds to the specification information in the composite block identification code, so as to ensure that the composite block can be quickly located during subsequent calling. At the same time, the warehouse management system updates the inventory data in real time, records the warehousing time, storage location and corresponding composite block identification code of each batch of composite copper-aluminum block 10, and forms a complete warehousing registration account book.

[0096] Then, when there is a new energy battery cover plate application demand, the parameters of the required composite copper-aluminum block 10 are determined according to the specification and model of the battery cover plate, such as the inner hole structure and the overall size, and the corresponding demand parameters are input in the warehouse management system. The system automatically matches the composite block identification code and the storage location that meet the requirements. The worker checks the composite block identification code in the corresponding storage partition through the code scanning equipment according to the feedback of the system, and confirms that the specification and quantity of the composite copper-aluminum block 10 are consistent with the demand, and then the composite copper-aluminum block 10 is called out from the warehouse. During the calling process, the system updates the inventory data in real time, records the calling time, application project and information of the person who receives the composite block, so that the flow of each composite copper-aluminum block 10 can be traced, and the situation of specification mismatch or inventory information confusion is avoided.

[0097] By packaging qualified composite copper-aluminum blocks 10 according to the specification, inputting information to generate composite block identification codes and registering and warehousing, and then calling according to the identification codes based on the demand of the new energy battery cover plate, the effect of realizing the whole process traceability of the composite copper-aluminum block 10, ensuring the accuracy of application calling and the standardization of inventory management is achieved.

[0098] Further, the step A900 in the method provided in the embodiment of the application comprises:

[0099] A930: when the composite block damage detection result is unqualified, the composite copper-aluminum block 10 is subjected to scrap processing.

[0100] Specifically, first, the unqualified composite copper-aluminum block 10 is classified and marked, and a red special mark card is used to mark the unqualified scrap word. The detection time, detection equipment number, unqualified reason (such as surface scratch depth exceeding the standard, weld crack, too many pores, etc.), and detection personnel information need to be filled in on the mark card to ensure that the problem of each unqualified composite block can be traced. At the same time, the unqualified composite block after marking is transported to a special unqualified product storage area. The area needs to be at least 5 meters away from the qualified product storage area and set up physical isolation facilities to prevent confusion with qualified products. The storage area needs to be marked with a clear warning sign of unqualified product storage area to avoid misuse.

[0101] After completing the classification and storage, the information of the unqualified composite copper-aluminum block 10 needs to be registered in the system. The key data of the unqualified composite block, including the processing batch, specification parameters, unqualified detection items, unqualified determination basis (such as scratch depth 0.06 mm exceeding the threshold value of 0.04 mm, weld crack length 2 mm exceeding the allowed range, etc.), and mark card number, are entered through the manufacturing management system. The system automatically generates an unqualified product account and records the flow status of each unqualified composite block in real time, providing data support for subsequent quality analysis and process optimization. After registration, technical personnel in the field need to organize a preliminary review of the unqualified reason through secondary detection, such as using a higher precision optical microscope to observe the weld micro defects and using a micrometer to re-measure the surface scratch depth to confirm the accuracy of the unqualified determination result and avoid misjudgment due to detection error. If the secondary detection confirms that it is still unqualified, it enters the final scrap processing link.

[0102] The final scrap processing needs to choose the appropriate processing mode according to the material characteristics of the composite copper-aluminum block 10. Considering that copper and aluminum are both recyclable metals, the disassembly-classification recycling mode is adopted for processing. First, use special disassembly equipment to separate the copper block 12 and the aluminum block 11 of the unqualified composite block. Control the disassembly force and speed of the equipment during the disassembly process to avoid safety hazards caused by metal debris flying. After disassembly, collect the copper block 12 and aluminum block 11 waste separately to ensure that the two metal wastes are not mixed. Then, the classified copper block 12 waste and aluminum block 11 waste are loaded into special recycling containers, which are marked with copper waste, aluminum waste, and corresponding batch information. The qualified metal recycling agency with qualifications is responsible for recycling. The recycling process needs to be recorded in the manufacturing management system, including recycling time, recycling agency name, and waste weight, to form a complete scrap recycling closed loop. At the same time, the scrap information of this unqualified composite block, including quantity, reason, and processing method, is included in the quality analysis report to provide improvement direction for optimizing copper-aluminum welding parameters and improving surface damage detection accuracy.

[0103] By classifying, labeling, storing, registering and verifying the non-conforming composite copper-aluminum blocks 10, and then disassembling, classifying, recycling and recording them according to their material, the scrapping process was completed. This achieved the effects of preventing non-conforming products from flowing into subsequent stages, realizing the recycling and utilization of metal resources, and providing data support for process optimization.

[0104] In summary, the optimized manufacturing method for a composite copper-aluminum block provided in this application has the following technical effects:

[0105] This application achieves optimized manufacturing of the composite copper-aluminum block 10 by stamping copper insertion holes 111 into an aluminum block 11 and obtaining a processed aluminum block 11. The processed aluminum block 11 undergoes surface pretreatment and surface damage detection sequentially, and is kept for use after passing the tests. Simultaneously, a copper block 12 is processed until its outer contour is the same as the inner contour of the copper insertion hole 111. The processed copper block 12 undergoes surface pretreatment and surface damage detection sequentially, and is kept for use after passing the tests. The pretreated copper block 12 is then placed into the copper insertion hole 111 and welded using an ultrasonic torque welding device to form a composite copper-aluminum block 10. The surface damage of the composite block is detected. If it passes the tests, it is packaged, registered, and stored. If it fails the tests, it is scrapped. This achieves optimized manufacturing of the composite copper-aluminum block 10, enabling the finished product to meet the requirements of high structural adaptability, stable welding quality, and precise traceability. It achieves the technical effects of low-cost manufacturing of composite copper-aluminum blocks, lowering the equipment threshold, avoiding laser welding defects, and ensuring high weld strength, excellent conductivity, and stable quality of the finished product.

[0106] Example 2, as Figure 2 As shown, based on the same inventive concept as in Embodiment 1 above, this application provides an optimized manufacturing system for composite copper-aluminum blocks, the system comprising:

[0107] The pre-processed aluminum block acquisition module 1 is used to punch copper block embedding holes 111 into the aluminum block 11 to obtain the pre-processed aluminum block 11.

[0108] The aluminum block damage detection result acquisition module 2 is used to perform surface pretreatment on the processed aluminum block 11 and perform surface damage detection on the pretreated aluminum block 11 to obtain the damage detection result of the aluminum block 11.

[0109] The pre-treated aluminum block acquisition module 3 is used to reserve the pre-treated aluminum block 11 when the damage detection result of the aluminum block 11 is qualified.

[0110] The pre-processed copper block acquisition module 4 is used to process the copper block 12 so that the outer contour of the copper block 12 is the same as the inner contour of the copper block embedding hole 111, thereby obtaining the processed copper block 12.

[0111] A copper block damage detection result acquisition module 5 is configured to perform surface pretreatment on the processed copper block 12, detect whether the surface of the pretreated copper block 12 is damaged, and obtain a copper block damage detection result.

[0112] A pretreated copper block acquisition module 6 is configured to reserve the pretreated copper block 12 when the copper block damage detection result is qualified.

[0113] A composite copper-aluminum block acquisition module 7 is configured to place the pretreated copper block 12 in the copper block embedding hole 111, and weld the pretreated copper block 12 and the pretreated aluminum block 11 by using an ultrasonic torque welding device to form a composite copper-aluminum block 10.

[0114] A composite block damage detection result acquisition module 8 is configured to detect whether the surface of the composite copper-aluminum block 10 is damaged, and obtain a composite block damage detection result.

[0115] A composite copper-aluminum block registration module 9 is configured to package and register the composite copper-aluminum block 10 in storage when the composite block damage detection result is qualified.

[0116] Further, the aluminum block damage detection result acquisition module 2 is configured to perform the following steps:

[0117] The processed aluminum block 11 is surface cleaned by using a cleaning agent to obtain a cleaned aluminum block 11, and the cleaned aluminum block 11 is surface dried to obtain the pretreated aluminum block 11.

[0118] Further, the processed copper block acquisition module 4 is configured to perform the following steps:

[0119] The copper block 12 is provided with an inner hole, wherein the inner hole includes a first stepped hole 121 and a second stepped hole 122, and the inner hole is provided with a chamfer on an end of the second stepped hole 122 away from the first stepped hole 121.

[0120] Further, the copper block damage detection result acquisition module 5 is configured to perform the following steps:

[0121] The processed copper block 12 is surface pickled to obtain a pickled copper block 12, the pickled copper block 12 is surface dried to obtain a dried copper block 12, and the dried copper block 12 is surface nickel plated to obtain the pretreated copper block 12.

[0122] Furthermore, the composite copper-aluminum block registration module 9 is used to perform the following steps:

[0123] The composite copper-aluminum block 10 is packaged and registered into the warehouse, and a composite block identification code is generated; based on the application requirements of new energy battery cover plates, the composite copper-aluminum block 10 is called according to the composite block identification code.

[0124] Furthermore, the composite copper-aluminum block registration module 9 is used to perform the following steps:

[0125] When the damage detection result of the composite block is unqualified, the composite copper-aluminum block 10 shall be scrapped.

[0126] Example 3, as Figure 3 As shown, based on the same inventive concept as in Embodiment 1 above, this application provides an electronic device, the electronic device comprising:

[0127] The memory 303 is used to store executable instructions; the processor 302 is used to implement an optimized manufacturing method for a composite copper-aluminum block when executing the executable instructions stored in the memory 303.

[0128] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention, showing a block diagram of an exemplary electronic device suitable for implementing the embodiments of the present invention. Figure 3 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention. This electronic device is in the form of a general-purpose computing device, and its components may include, but are not limited to, an input device 301, a processor 302, a memory 303, and an output device 304. The processor 302 may be one or more; the memory 303 may include a computer-readable medium and at least one program product having a set (at least one) of program modules configured to perform the functions of the embodiments of this application.

[0129] The memory 303 shown in this embodiment of the invention can be any combination of one or more computer-readable media. The computer-readable storage media can be, but is not limited to, infrared, semiconductor systems, devices or components, or any combination thereof, used to store software programs, computer-executable programs and modules, such as the program instructions / modules corresponding to the optimized manufacturing method of a composite copper-aluminum block in this embodiment of the invention. The processor 302 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 303, thereby realizing the optimized manufacturing method of the composite copper-aluminum block described above.

[0130] The optimization manufacturing system of the composite copper-aluminum block provided by the embodiment of the present application can execute the optimization manufacturing method of the composite copper-aluminum block provided by any embodiment of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0131] Although the present application makes various references to certain modules in the system according to the embodiments of the present application, however, any number of different modules can be used and run on the user terminal and / or the server, and the various units and modules are only divided according to the functional logic, and are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of the functional units are only for the convenience of mutual differentiation, and are not used to limit the protection scope of the present application.

[0132] The specific embodiments described above do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. In some cases, the actions or steps described in the present application can be executed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are possible or can be advantageous.

Claims

1. A method for optimized manufacturing of a composite copper aluminum slug, characterized in that, The method comprises: punching a copper block embedding hole on an aluminum block to obtain a processed aluminum block; performing surface pretreatment on the processed aluminum block, and performing surface damage detection on the pretreated aluminum block to obtain an aluminum block damage detection result; when the aluminum block damage detection result is qualified, the pretreated aluminum block is reserved; processing a copper block to make the outer contour of the copper block the same as the inner contour of the copper block embedding hole to obtain a processed copper block; performing surface pretreatment on the processed copper block, and detecting whether there is damage on the surface of the pretreated copper block to obtain a copper block damage detection result; when the copper block damage detection result is qualified, the pretreated copper block is reserved; placing the pretreated copper block in the copper block embedding hole, and welding the pretreated copper block and the pretreated aluminum block through an ultrasonic torque welding device to form a composite copper-aluminum block; detecting whether there is damage on the surface of the composite copper-aluminum block to obtain a composite block damage detection result; when the composite block damage detection result is qualified, the composite copper-aluminum block is packed and registered into a warehouse.

2. The method of claim 1, wherein the method further comprises: The surface pretreatment on the processed aluminum block comprises: performing surface cleaning on the processed aluminum block using a cleaning agent to obtain a cleaned aluminum block; performing surface drying treatment on the cleaned aluminum block to obtain the pretreated aluminum block.

3. The optimized manufacturing method of a composite copper-aluminum block as described in claim 1, characterized in that, The processing of the copper block comprises: providing an inner hole on the copper block, wherein the inner hole comprises a first stepped hole and a second stepped hole, and the inner hole is provided with a chamfer located on the end of the second stepped hole away from the first stepped hole.

4. The method of claim 1, wherein the copper-aluminum composite block is optimized for manufacturing, and wherein the copper-aluminum composite block is optimized for manufacturing by: The surface pretreatment on the processed copper block comprises: ​ performing surface pickling treatment on the processed copper block to obtain a pickled copper block; performing surface drying on the pickled copper block to obtain a dried copper block; performing surface nickel plating treatment on the dried copper block to obtain the pretreated copper block.

5. The method of claim 1, wherein the method further comprises: The packing and registration of the composite copper-aluminum block into the warehouse comprises: ​ packing and registering the composite copper-aluminum block into the warehouse to generate a composite block identification code; based on the application requirement of a new energy battery cover plate, the composite copper-aluminum block is called according to the composite block identification code.

6. The method of claim 1, wherein the method further comprises: when the composite block damage detection result is unqualified, the composite copper-aluminum block is scrapped. ​ 7. An optimized manufacturing system of a composite copper aluminum block characterized by, A system for implementing the optimized manufacturing method of a composite copper-aluminum block according to any one of claims 1-6, the system comprising: a processed aluminum block obtaining module for punching a copper block embedding hole on an aluminum block to obtain a processed aluminum block; an aluminum block damage detection result obtaining module for performing surface pretreatment on the processed aluminum block, and performing surface damage detection on the pretreated aluminum block to obtain an aluminum block damage detection result; a pretreated aluminum block obtaining module for reserving the pretreated aluminum block when the aluminum block damage detection result is qualified; a processed copper block obtaining module for processing a copper block to make the outer contour of the copper block the same as the inner contour of the copper block embedding hole to obtain a processed copper block; a copper block damage detection result obtaining module for performing surface pretreatment on the processed copper block, and detecting whether there is damage on the surface of the pretreated copper block to obtain a copper block damage detection result; The pre-processed copper block obtaining module is configured to reserve the pre-processed copper block when the copper block damage detection result is qualified. The composite copper-aluminum block obtaining module is configured to place the pre-processed copper block in the copper block embedding hole, and weld the pre-processed copper block and the pre-processed aluminum block by means of an ultrasonic torque welding device to form a composite copper-aluminum block. The composite block damage detection result obtaining module is configured to detect whether the surface of the composite copper-aluminum block is damaged to obtain a composite block damage detection result. The composite copper-aluminum block registration module is configured to pack and register the composite copper-aluminum block into a warehouse when the composite block damage detection result is qualified.

8. An electronic device, comprising: The electronic device comprises: a memory configured to store executable instructions; a processor configured to execute the executable instructions stored in the memory to implement the composite copper-aluminum block optimization manufacturing method in any one of claims 1 to 6.

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