A forging die cavity temperature control channel design method, device, equipment and medium

Abstract

The present invention relates to a method, device, equipment and medium for designing a temperature control channel of a forging die cavity, and belongs to the technical field of hot stamping processes. The method for designing a temperature control channel of a forging die cavity comprises: designing a heating channel inside the forging die according to the structural distribution of the forging die cavity; designing a cooling channel inside the forging die based on a temperature field cloud map of the forging die surface under heating conditions, temperature distribution requirements of the forging die surface during hot forging, and structural characteristics of the forging die; and optimizing the heating power of the heating channel and the flow rate of the coolant in the cooling channel by using a multi-objective optimization algorithm, so that the temperature of the forging die surface reaches the expected target, thereby improving the production efficiency of aluminum alloy parts.

Description

Technical Field

[0001] The present invention relates to the technical field of hot stamping processes, and in particular to a method, device, equipment and medium for designing a temperature control channel of a forging die cavity. Background Art

[0002] In recent years, with the advancement of the national lightweight, energy conservation and emission reduction strategies, the application of aluminum alloys in the automotive, aerospace and other fields has developed rapidly. As a major producer and consumer of aluminum alloy materials, my country has a wide range of applications, especially in some lightweight key components in the automotive, aerospace and shipbuilding fields. Forging is an important method for forming aluminum alloy materials. Compared with traditional alloy steel forging, the aluminum alloy forging process window is extremely narrow. Among them, temperature is the core process element in the aluminum alloy forging production process. Temperature control will directly affect the quality of the product and production efficiency. For example, unreasonable forging die temperature can easily lead to insufficient filling, cracks, surface coarse grains, folding and adhesion and other defects. Therefore, the temperature field in the mold must be within the process requirements to obtain good surface quality, shape and size accuracy, internal organizational state and strong and tough mechanical properties. In addition, unreasonable forging die temperature can easily cause extreme thermal loads on the mold surface, greatly shortening the mold service life and reducing production efficiency.

[0003] Currently in the forging industry, forging dies are mainly heated by flames before forging to keep the die surface temperature at 200-300°C, and naturally evolve through heat exchange with the environment during the subsequent multi-pass continuous forging process, including friction between the high-temperature billet (1100-1200°C for steel, 400-500°C for aluminum) and the die, contact conduction, natural convection, and graphite emulsion cooling.

[0004] However, flame heating before forging makes the mold surface temperature prone to being too high, too low, or uneven, and cannot be adjusted by human intervention. Summary of the Invention

[0005] In view of this, it is necessary to provide a forging die cavity temperature control channel design method, device, equipment and medium to solve the technical problem that the temperature of the aluminum alloy forging die surface cannot be finely controlled.

[0006] In order to solve the above problems, the present invention provides a method for designing a temperature control channel of a forging die cavity, comprising:

[0007] According to the structure distribution of the forging die cavity, the heating channel inside the forging die is designed;

[0008] Based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die, the cooling channel inside the forging die is designed;

[0009] A multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel so that the surface temperature of the forging mold reaches the expected target.

[0010] In a possible implementation, the heating channels inside the forging die are designed based on the distribution of the forging die cavity structure, and multiple heating channels are symmetrically arranged in the forging die, including:

[0011] According to the distribution of the aluminum alloy forging die cavity structure, multiple heating channels are designed inside the forging die, wherein the multiple heating channels are located on the same reference plane of the upper die bottom and the lower die bottom of the forging die, and multiple heating rods are correspondingly installed in the multiple heating channels.

[0012] In a possible implementation, the plurality of heating rods include 16 mold heating rods, wherein 12 mold heating rods are symmetrically arranged at the front end of the mold in a horizontal manner, and 4 mold heating rods are respectively arranged at the rear end of the mold in a vertical manner.

[0013] In a possible implementation, obtaining a temperature field cloud map of the forging die surface under heating conditions includes:

[0014] An infrared thermal imager is vertically mounted above the surface of the forging mold cavity, and a temperature field cloud map of the forging mold surface under heating conditions is obtained by the infrared thermal imager.

[0015] In one possible implementation, the temperature distribution requirements of the forging die surface during the hot forging process include:

[0016] Based on the structural characteristics, material properties and structural characteristics of the forging die cavity of the aluminum alloy forged parts, the temperature distribution requirements of the forging die surface during the hot forging process are determined, wherein the temperature distribution requirements of the forging die surface include the surface temperature distribution of the die surface, the thermal conductivity, heat capacity and thermal expansion coefficient of the die material.

[0017] In one possible implementation, the cooling channel inside the forging die is designed based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die, including:

[0018] Using a finite element numerical simulation method to check the strength of the forging die structure under forging and impact, and determining the distance between the central axis of the cooling channel and the bottom surface of the forging die based on the strength of the forging die structure;

[0019] The temperature rise, flow rate, physical properties of the cooling medium in the cooling channel and the physical properties of the formed part are obtained. Based on the temperature field cloud map of the forging die surface under the heating conditions, the temperature rise, flow rate, physical properties of the cooling medium, the physical properties of the formed part, the temperature distribution requirements of the forging die surface, the distance between the central axis of the cooling channel and the bottom surface of the forging die and the structural characteristics of the forging die, a plurality of cooling channels with different apertures and unequal spacings are designed longitudinally, and cooling water medium is passed into the cooling channel, wherein the cooling channel is located above the heating channel reference plane, and the physical properties of the formed part include strength, hardness, elongation and the microstructure of each part.

[0020] In one possible implementation, the multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel so that the forging die surface temperature reaches the desired target, including:

[0021] Establishing a heating rod temperature control system based on the heating channel;

[0022] Establishing a coolant control system based on the cooling channel;

[0023] Based on the temperature field cloud map of the forging mold surface, the heating rod temperature control system and the coolant control system, the heating power of the heating channel and the flow rate of the coolant in the cooling channel are adjusted, and a multi-objective optimization algorithm is used to optimize the heating power and the flow rate of the coolant so that the forging mold surface temperature reaches the expected target.

[0024] On the other hand, the present invention also provides a forging die cavity temperature control channel design device, comprising:

[0025] Heating channel design module, used to design the heating channel inside the forging die according to the structural distribution of the forging die cavity;

[0026] The cooling channel design module is used to design the cooling channels inside the forging die based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die;

[0027] The forging die surface temperature regulating module is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel by using a multi-objective optimization algorithm so that the forging die surface temperature reaches the expected target.

[0028] On the other hand, the present invention also provides an electronic device, comprising: a processor and a memory;

[0029] The memory stores a computer-readable program executable by the processor;

[0030] When the processor executes the computer-readable program, the steps in the forging die cavity temperature control channel design method as described above are implemented.

[0031] On the other hand, the present invention also provides a computer-readable storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps in the forging die cavity temperature control channel design method as described above.

[0032] The beneficial effects of the present invention are as follows: by designing the internal heating channel of the forging die and the internal cooling channel of the forging die, the problem of uneven temperature during the forging process of aluminum alloy parts is effectively solved, and the uniform distribution of the surface temperature of the mold cavity is ensured. The heating power of the heating channel and the flow rate of the coolant in the cooling channel are optimized by a multi-objective optimization algorithm, so that the surface temperature of the forging die reaches the expected target, and the real-time monitoring and adjustment of the surface temperature of the mold cavity is realized, thereby improving the stability and controllability of the production process, and reducing the temperature adjustment time in production by quickly adjusting the surface temperature of the mold cavity, thereby improving the production efficiency of aluminum alloy parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A flow chart of an embodiment of a method for designing a temperature control channel for a forging die cavity provided by the present invention;

[0034] Figure 2 A schematic diagram of the working structure of a forging die according to the method for designing a temperature control channel for a forging die cavity provided by the present invention;

[0035] Figure 3 A schematic structural diagram of an embodiment of a device for designing a temperature control channel for a forging die cavity provided by the present invention;

[0036] Figure 4 This is a schematic structural diagram of an embodiment of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0038] The present invention discloses a method, device, equipment, and medium for designing a temperature control channel for a forging die cavity, which can be used in a computer. The method, equipment, or computer-readable storage medium involved in the present invention can be integrated with the above-mentioned equipment or can be relatively independent.

[0039] A specific embodiment of the present invention discloses a method for designing a temperature control channel of a forging die cavity, which can be executed by a computer, specifically by one or more processors of the computer. Figure 1 This is a flow chart of the method for designing a temperature control channel for a forging die cavity provided by an embodiment of the present invention. Figure 1 , the design method of temperature control channel of forging die cavity includes:

[0040] S101. Designing a heating channel inside the forging die according to the forging die cavity structure distribution;

[0041] S102. Designing cooling channels inside the forging die based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die;

[0042] S103. A multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel so that the forging mold surface temperature reaches the expected target.

[0043] Among them, a mold heating rod is installed in the heating channel, and a cooling water medium is passed into the cooling channel to adjust the temperature of the forging model surface. A heating rod temperature control system is established based on the heating channel, and a coolant control system is established based on the cooling channel. The heating power of each heating rod is individually controlled by the heating rod temperature control system, and the flow rate of the cooling medium in each cooling channel is controlled by the coolant control system, so that the temperature of each area of ​​the forging model surface reaches the expected target.

[0044] Compared with the prior art, the forging die cavity temperature control channel design method provided in this embodiment designs a heating channel inside the forging die according to the structural distribution of the forging die cavity, and arranges multiple heating channels symmetrically in the forging die. Based on the temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface, and the structural characteristics of the forging die, a cooling channel inside the forging die is designed. The cooling channel is designed taking into account the influence of the heating channel on the strength of the forging die, the influence of the cooling medium in the cooling channel on the temperature of the forging die, the structural characteristics of the aluminum alloy forged parts, the material properties, and the structural characteristics of the forging die, so that the temperature of the cavity surface meets the requirements and the quality and performance of the final formed part are guaranteed. The heating power of the heating channel and the flow rate of the coolant in the cooling channel are adjusted, and the heating power and the flow rate of the coolant are optimized using a multi-objective optimization algorithm so that the forging die surface temperature reaches the expected target, thereby realizing real-time monitoring and adjustment of the mold cavity surface temperature and improving the stability and controllability of the production process.

[0045] In some embodiments, in step S101, multiple heating channels are designed inside the forging die according to the cavity structure distribution of the aluminum alloy forging die, and the multiple heating channels are symmetrically arranged on the same reference plane of the bottom of the upper die and the bottom of the lower die of the forging die. Multiple heating rods are correspondingly installed in the multiple heating channels, and the diameter of the heating channels is The height between the center axis of the heating channel and the bottom surface of the forging die is During the forging process, the forging die needs multiple heating channels to heat the die to a certain temperature range. Therefore, die heating rods are installed inside the heating channels. A total of 16 die heating rods are arranged, all of which are model HLE1252 and have parameters of , power 250w, among which 12 mold heating rods are symmetrically arranged at the front end of the mold in a horizontal manner, and 4 mold heating rods are arranged at the rear end of the mold in a vertical manner. In order to ensure that the heating rods fit closely with the mold surface, they are arranged at appropriate positions on the mold surface. A thermocouple is connected to the heating channel, and a heating rod temperature control system is established based on the heating channel. The heating rod temperature control system includes a multi-channel temperature intelligent controller, an electromagnetic relay, a voltage regulating module, a heating rod and a thermocouple. Multiple thermocouples, heating rods and voltage regulating modules are connected to the multi-channel temperature intelligent controller, and the heating rods are connected to the computer respectively, so that the heating rod temperature control system can individually control the heating power of each heating rod.

[0046] In some embodiments, in step S102, a temperature field cloud map of the forging die surface under heating conditions is obtained, an infrared thermal imager is arranged vertically above the forging die, and the position of the infrared thermal imager relative to the forging die is ensured to remain unchanged. The temperature field cloud map of the forging die surface under heating conditions of the internal heating rod is obtained by the infrared thermal imager, and the resolution of the infrared thermal imager is , the temperature range is degrees Celsius; according to the structural characteristics, material properties, and structural characteristics of the forging die cavity of the aluminum alloy forged parts, the temperature distribution requirements of the die surface during the hot forging process are determined, wherein the temperature distribution requirements of the forging die surface include the surface temperature distribution of the die surface, the thermal conductivity, heat capacity, and thermal expansion coefficient of the die material. Before designing the cooling channel, in order to ensure that the designed forging die can withstand the applied force during use and to prevent deformation, fracture, or damage due to insufficient structural strength, it is necessary to check the structural strength of the forging die. The finite element numerical simulation method is used, and the forging process of the formed part is used as the simulation boundary condition to simulate the forming process, and then check the strength of the forging die structure under the impact of the forging load, that is, to ensure that the internal limit stress of the die is less than the fracture strength of the material under the condition of the heating channel. The distance between the center axis of the cooling channel and the bottom surface of the forging die is determined based on the strength of the forging die structure, and the distance between the center axis of the cooling channel and the bottom surface of the forging die is defined as H, and its calculation formula is:

[0047] ,

[0048] in, The minimum distance required to meet the strength requirement is is the safety factor; a cooling channel is designed on the reference plane of H to give the forging die a certain structural strength, so as to ensure that the forging die designed with both cooling and heating channels can realize the processing technology of aluminum alloy parts on the basis of meeting the temperature distribution requirements of the cavity surface;

[0049] Based on the temperature field cloud diagram of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface, and the structural characteristics of the forging die, the cooling channel inside the forging die is designed. First, the temperature rise, flow rate, and physical properties of the cooling medium in the cooling channel are obtained. The calculation formula for the temperature rise, flow rate, and physical properties of the cooling medium is:

[0050] ,

[0051] ,

[0052] in, is the proportion of heat removed by the cooling medium, ranging from 0.8 to 1. The heat removed by the cooling medium, is the flow rate of cooling medium, The time for a single production cycle, is the specific heat capacity of the cooling medium, The temperature change of the cooling medium before and after it flows through the mold. is the number of cooling channels, is the cooling channel diameter, Cooling medium flow rate;

[0053] The physical properties of the formed parts are obtained, including strength, hardness, elongation and the microstructure of each part of the formed parts. Based on the temperature field cloud map of the forging mold surface under heating conditions, the temperature rise, flow rate, physical properties of the cooling medium, the physical properties of the formed parts, the temperature distribution requirements of the forging mold surface, the distance between the center axis of the cooling channel and the bottom surface of the forging die, and the structural characteristics of the forging die, multiple cooling channels with different apertures and unequal spacing are designed longitudinally, and cooling water medium is introduced into the cooling channel. In a single production cycle, according to the heat contained in the mold cavity surface, combined with the temperature rise, flow rate and physical properties of the cooling medium, as well as the physical properties of the blank, 5 straight hole cooling channels with unequal spacing and different apertures can be designed, all above the heating channel reference plane.

[0054] A coolant control system is established based on the cooling channel. The coolant control system includes a coolant pump, a flow rate control valve and a temperature thermocouple. The coolant control system adjusts the flow rate of the coolant in the cooling channel to adjust the temperature of the forging mold surface.

[0055] In some embodiments, in step S103, the heating power of the heating channel and the flow rate of the coolant in the cooling channel are adjusted based on the temperature field cloud map of the forging mold surface, and the power of the mold heating rod is set by the heating rod temperature control system to heat the forging mold. When the surface temperature of the forging mold cavity reaches a predetermined temperature, the cooling medium is introduced into the cooling channel by the coolant control system, and the flow rate is adjusted by controlling the opening of the flow control valve, and the image of the forging mold surface is taken by an infrared thermal imager to determine the temperature control condition setting;

[0056] In order to finely control the surface temperature of aluminum alloy forging die, a multi-objective optimization algorithm is used to optimize the heating power and coolant flow rate. The optimization target is the combination of cooling medium flow rate and heating rod power. The most suitable cooling medium flow rate and heating rod power are found through optimization. The heating rod temperature control system and the coolant control system are used to adjust the heating rod power of the heating channel and the cooling medium flow rate in the cooling channel to quickly achieve the most suitable cooling medium flow rate and heating rod power, so that the temperature of each area of ​​the forging die surface reaches the expected target. The specific process is as follows: the cooling medium flow rate in the cooling channel and the heating power of the heating rod are used as independent variables, and the temperature value of a certain point on the two-dimensional temperature field of the forging die cavity surface photographed by the infrared thermal imager is used as the dependent variable. Through simulation, an approximate expression of the change of flow rate and heating power to temperature is established. The optimal parameter matching of the target temperature value is obtained by the particle swarm multi-objective algorithm calculation convergence. The optimal parameters are the most suitable cooling medium flow rate and heating rod power. The approximate expression form satisfies the following speed update formula and position update formula in the particle swarm algorithm. The speed update formula and position update formula are as follows:

[0057] ,

[0058] ,

[0059] in, For particles exist In the iteration dimensional velocity vector, For particles In the In the iteration dimensional position vector, is the inertia weight, 、 is the acceleration coefficient or acceleration factor, For the After the iteration, the The optimal solution obtained by individual particle search is For the After iterations, the optimal solution in the entire particle swarm is obtained. In order to improve the calculation speed and accuracy, the inertia weight of the speed update formula in the particle swarm algorithm is adjusted, and the calculation formula is:

[0060] ,

[0061] in, is the maximum inertia weight, is the minimum inertia weight, is the current iteration number, is the maximum number of iterations;

[0062] The optimal cooling flow rate and heating power for the target temperature are obtained through particle swarm optimization and multi-objective algorithm. The heating power of the heating channel and the flow rate of the coolant in the cooling channel are quickly adjusted through the heating rod temperature control system and the coolant control system, so that the forging mold surface temperature quickly reaches the expected target.

[0063] For the schematic diagram of the working structure of the forging die, please refer to Figure 2 ,like Figure 2 As shown in the figure, 1 represents an infrared thermal imager, 2 represents a computer, 3 represents a heating channel, 4 represents a cooling channel, and 5 represents a flow rate control valve. Represents the forging die cavity surface; Indicates forging die.

[0064] In order to better implement the forging die cavity temperature control channel design method in the embodiment of the present invention, based on the forging die cavity temperature control channel design method, correspondingly, Figure 3 As shown, the embodiment of the present invention further provides a forging die cavity temperature control channel design device, the forging die cavity temperature control channel design device 300 includes:

[0065] The heating channel design module 301 is used to design the heating channel inside the forging die according to the structure distribution of the forging die cavity;

[0066] The cooling channel design module 302 is used to design the cooling channel inside the forging die based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die;

[0067] The forging die surface temperature adjustment module 303 is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel using a multi-objective optimization algorithm so that the forging die surface temperature reaches the desired target.

[0068] like Figure 4As shown, based on the design method of the temperature control channel of the forging die cavity, the present invention also provides an electronic device 400. The electronic device 400 can be a computing device such as a mobile terminal, desktop computer, notebook, PDA, server, etc. The electronic device 400 includes a processor 401, a memory 402, and a display 403. Figure 4 Only some of the components of the electronic device 400 are shown, but it should be understood that implementation of all of the shown components is not required, and more or fewer components may be implemented instead.

[0069] In some embodiments, the memory 402 may be an internal storage unit of the electronic device 400, such as the hard drive or memory of the electronic device 400. In other embodiments, the memory 402 may also be an external storage device of the electronic device 400, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the electronic device 400. Furthermore, the memory 402 may include both the internal storage unit of the electronic device 400 and an external storage device. The memory 402 is used to store application software installed on the electronic device 400 and various data, such as program code installed on the electronic device 400. The memory 402 may also be used to temporarily store data that has been output or is about to be output. In one embodiment, the memory 402 stores a forging die cavity temperature control channel design program, which can be executed by the processor 401, thereby implementing the forging die cavity temperature control channel design method of various embodiments of the present invention.

[0070] In some embodiments, the processor 401 may be a central processing unit (CPU), a microprocessor, or other data processing chip, configured to execute program codes or process data stored in the memory 402, such as a method for designing a temperature control channel for a forging die cavity.

[0071] In some embodiments, display 403 can be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. Display 403 is used to display identification information for the forging die cavity temperature control channel design program and to display a visual user interface. Components 401-403 of electronic device 400 communicate with each other via a system bus.

[0072] In some embodiments, when the processor 401 executes the forging mold cavity temperature control channel design program in the memory 402, the various steps in the forging mold cavity temperature control channel design method described in the above embodiments are implemented. Since the forging mold cavity temperature control channel design method has been described in detail above, it will not be repeated here.

[0073] Accordingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, it can implement the steps or functions in the forging mold cavity temperature control channel design method provided by the above-mentioned method embodiments.

[0074] In summary, the forging die cavity temperature control channel design method, device, equipment and medium provided by the present invention are designed to design a heating channel inside the forging die according to the structural distribution of the forging die cavity; based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging and the structural characteristics of the forging die, the cooling channel inside the forging die is designed; a multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel, so that the forging die surface temperature reaches the expected target, thereby improving the production efficiency of aluminum alloy parts.

[0075] Those skilled in the art will appreciate that all or part of the process steps of the above-described embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, such as a magnetic disk, an optical disk, a read-only memory, or a random access memory.

[0076] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the scope of protection of the present invention.

Claims

1. A method for designing a temperature control channel for a forging die cavity, characterized in that: include: According to the structure distribution of the forging die cavity, the heating channel inside the forging die is designed; Based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die, the cooling channel inside the forging die is designed; A multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel so that the surface temperature of the forging mold reaches the expected target.

2. The method for designing a temperature control channel for a forging die cavity according to claim 1, wherein: The heating channel inside the forging die is designed according to the structure distribution of the forging die cavity, including: According to the distribution of the aluminum alloy forging die cavity structure, multiple heating channels are designed inside the forging die, wherein the multiple heating channels are located on the same reference plane of the upper die bottom and the lower die bottom of the forging die, and multiple heating rods are correspondingly installed in the multiple heating channels.

3. The method for designing a temperature control channel for a forging die cavity according to claim 2, wherein: The plurality of heating rods include 16 mold heating rods, wherein 12 mold heating rods are symmetrically arranged at the front end of the mold in a horizontal manner, and 4 mold heating rods are respectively arranged at the rear end of the mold in a vertical manner.

4. The method for designing a temperature control channel for a forging die cavity according to claim 2, wherein: The step of obtaining a temperature field cloud map of the forging die surface under heating conditions includes: An infrared thermal imager is vertically mounted above the surface of the forging mold cavity, and a temperature field cloud map of the forging mold surface under heating conditions is obtained by the infrared thermal imager.

5. The method for designing a temperature control channel for a forging die cavity according to claim 4, wherein: The temperature distribution requirements of the forging die surface during the hot forging process include: Based on the structural characteristics, material properties and structural characteristics of the forging die cavity of the aluminum alloy forged parts, the temperature distribution requirements of the forging die surface during the hot forging process are determined, wherein the temperature distribution requirements of the forging die surface include the surface temperature distribution of the die surface, the thermal conductivity, heat capacity and thermal expansion coefficient of the die material.

6. The method for designing a temperature control channel for a forging die cavity according to claim 5, wherein: The cooling channel inside the forging die is designed based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die, including: Using a finite element numerical simulation method to check the strength of the forging die structure under forging and impact, and determining the distance between the central axis of the cooling channel and the bottom surface of the forging die based on the strength of the forging die structure; The temperature rise, flow rate, physical properties of the cooling medium in the cooling channel and the physical properties of the formed part are obtained. Based on the temperature field cloud map of the forging die surface under the heating conditions, the temperature rise, flow rate, physical properties of the cooling medium, the physical properties of the formed part, the temperature distribution requirements of the forging die surface, the distance between the central axis of the cooling channel and the bottom surface of the forging die and the structural characteristics of the forging die, a plurality of cooling channels with different apertures and unequal spacings are designed longitudinally, and cooling water medium is passed into the cooling channel, wherein the cooling channel is located above the heating channel reference plane, and the physical properties of the formed part include strength, hardness, elongation and the microstructure of each part.

7. The method for designing a temperature control channel for a forging die cavity according to claim 6, wherein: The multi-objective optimization algorithm is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel so that the forging die surface temperature reaches the expected target, including: Establishing a heating rod temperature control system based on the heating channel; Establishing a coolant control system based on the cooling channel; Based on the temperature field cloud map of the forging mold surface, the heating rod temperature control system and the coolant control system, the heating power of the heating channel and the flow rate of the coolant in the cooling channel are adjusted, and a multi-objective optimization algorithm is used to optimize the heating power and the flow rate of the coolant so that the forging mold surface temperature reaches the expected target.

8. A forging die cavity temperature control channel design device, characterized in that: include: Heating channel design module, used to design the heating channel inside the forging die according to the structural distribution of the forging die cavity; The cooling channel design module is used to design the cooling channels inside the forging die based on the obtained temperature field cloud map of the forging die surface under heating conditions, the temperature distribution requirements of the forging die surface during hot forging, and the structural characteristics of the forging die; The forging die surface temperature regulating module is used to optimize the heating power of the heating channel and the flow rate of the coolant in the cooling channel by using a multi-objective optimization algorithm so that the forging die surface temperature reaches the expected target.

9. An electronic device, characterized in that: including memory and processor; The memory stores a computer-readable program executable by the processor; When the processor executes the computer-readable program, the steps of the method for designing a temperature control channel of a forging die cavity are implemented as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps in the forging die cavity temperature control channel design method according to any one of claims 1 to 7.

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