High-toughness component hot forming method based on line beat-energy consumption collaborative management and control

Abstract

The application relates to a high-strength and high-toughness component hot forming method based on line beat-energy consumption collaborative management, and belongs to the technical field of hot forming. The method comprises the following steps: acquiring first process parameters of a high-strength and high-toughness component in a roller hearth heating furnace heating process, second process parameters in a mechanical arm upper and lower die process and third process parameters in a press machine stamping pressure maintaining process; respectively performing mathematical modeling on the beat-energy consumption of the roller hearth heating furnace, the mechanical arm and the press machine based on the first process parameters, the second process parameters and the third process parameters, obtaining a line beat-energy consumption model, and adjusting process parameters of the high-strength and high-toughness component in hot forming based on the line beat-energy consumption model. The application adjusts the process parameters in the high-strength and high-toughness component hot forming production line by constructing a line beat-energy consumption model of the high-strength and high-toughness component hot forming production line, so that the energy consumption in the high-strength and high-toughness component hot forming process is reduced.

Description

[0001] The present application relates to the technical field of hot stamping production, and particularly relates to a high-strength and high-toughness component hot forming method based on production line beat-energycosyntactic management and control. BACKGROUND

[0002] The hot stamping forming technology firstly heats a metal plate (such as an ultrahigh-strength steel) to an austenitizing temperature interval and performs sufficient heat preservation, so that the material completes complete austenitizing transformation, and the forming fluidity is significantly improved. Then the high-temperature plate is quickly transferred to a die, and quenching is completed at the same time of stamping forming. This advanced process combining hot forming and quenching strengthening successfully breaks through the technical bottleneck of traditional cold stamping in forming high-strength steel, including large forming force, serious springback and other problems, and can produce ultrahigh-strength steel components with a strength of up to 1500 MPa, thereby obtaining rapid development and wide application in the field of automobile lightweight manufacturing.

[0003] However, although the full martensite ultrahigh-strength steel component produced by the traditional hot stamping production line has very high strength, its toughness is often insufficient, so that the material is prone to brittle fracture when subjected to impact or distortion, especially in a low-temperature environment, and the beat is longer and the energy consumption is larger in the production process.

[0004] Therefore, how to adjust the process parameters in the high-strength and high-toughness component hot forming production line to forge low-energy-consumption high-strength and high-toughness components needs to be solved urgently. SUMMARY

[0005] Therefore, it is necessary to provide a high-strength and high-toughness component hot forming method based on production line beat-energycosyntactic management and control, so as to reduce the beat and energy consumption in the high-strength and high-toughness component hot forming production line.

[0006] In order to solve the above problems, the present application provides a high-strength and high-toughness component hot forming method based on production line beat-energycosyntactic management and control, the high-strength and high-toughness component is prepared based on a high-strength and high-toughness component hot forming production line, the high-strength and high-toughness component hot forming production line comprises a roller hearth furnace, a mechanical arm and a press, and the method comprises the following steps:

[0007] First process parameters of the high-strength and high-toughness component in the heating process of the roller hearth furnace, second process parameters in the upper and lower die process of the mechanical arm and third process parameters in the stamping and pressure maintaining process of the press are respectively acquired;

[0008] mathematical modeling of the cycle-energy consumption of the roller-hearth furnace, the mechanical arm and the press based on the first process parameter, the second process parameter and the third process parameter, respectively, to obtain a roller-hearth furnace cycle-energy consumption model, a mechanical arm cycle-energy consumption model and a press cycle-energy consumption model, determining a production line cycle-energy consumption model based on the roller-hearth furnace cycle-energy consumption model, the mechanical arm cycle-energy consumption model and the press cycle-energy consumption model, and adjusting the process parameter of the high-toughness component in hot forming based on the production line cycle-energy consumption model.

[0009] In a possible implementation, the first process parameter includes heating and holding time , heating set temperature , furnace power coefficient , and roller-hearth furnace rated power .

[0010] mathematical modeling of the cycle-energy consumption of the roller-hearth furnace based on the first process parameter to obtain a roller-hearth furnace cycle-energy consumption model, including:

[0011]

[0012] wherein, is the furnace energy consumption for heating and holding the high-toughness component to the heating set temperature, is a function of the heating set temperature .

[0013] In a possible implementation, the second process parameter includes mechanical arm working time , mechanical arm power coefficient , mechanical arm linear speed , and mechanical arm rated power .

[0014] mathematical modeling of the cycle-energy consumption of the mechanical arm based on the second process parameter to obtain a mechanical arm cycle-energy consumption model, including:

[0015]

[0016] wherein, is the mechanical arm energy consumption, is a function of the mechanical arm linear speed .

[0017] In a possible implementation, the third process parameter includes press punching time , press holding time , punching force , punching speed , power coefficient when the press is punching , holding pressure , power coefficient of the press during holding pressure , and rated power of the press ;

[0018] mathematically modeling the beat-energy consumption of the press based on the third process parameter, to obtain a press beat-energy consumption model, comprising:

[0019]

[0020] wherein, is the energy consumption of the press, is the stamping speed is a multivariate function of the holding pressure .

[0021] In one possible implementation, determining a production line beat-energy consumption model based on the roller hearth furnace beat-energy consumption model, the mechanical arm beat-energy consumption model and the press beat-energy consumption model, comprising:

[0022]

[0023] wherein, is the energy consumption for producing one high-toughness component, is the time for producing one high-toughness component, , , and are weight values of the production line beat-energy consumption model.

[0024] In one possible implementation, the method further comprises:

[0025] heating the plate material to a preset temperature using the roller hearth furnace and maintaining the temperature for a first preset time;

[0026] transferring the plate material after the temperature maintaining to the press using the mechanical arm, so that the press performs a stamping and holding operation on the plate material after the temperature maintaining, wherein the transferring time is a second preset time, and the holding time is a third preset time;

[0027] immersing the plate material after the stamping and holding in a cooling medium for quenching treatment to obtain the high-toughness component, wherein the first preset time, the second preset time, the third preset time and the preset temperature are determined based on the production line beat-energy consumption model.

[0028] In one possible implementation, the preset temperature is 880-970℃, and the first preset time is 150-240s.

[0029] ​​The roller hearth furnace uses zoned heating.

[0030] In one possible implementation, the second preset time is 4-6 seconds.

[0031] In one possible implementation, the third preset time is 10-30 seconds;

[0032] The press operates by cyclic pressing and pressure holding.

[0033] In one possible implementation, the quenching process includes oil quenching.

[0034] The beneficial effects of this invention are:

[0035] This invention obtains the first process parameters for the high-strength and tough components during the heating process in a roller hearth furnace, the second process parameters during the upper and lower die processes of a robotic arm, and the third process parameters during the stamping and holding process of a press. Then, based on the first, second, and third process parameters, mathematical models are performed on the cycle time and energy consumption of the roller hearth furnace, the robotic arm, and the press, respectively, to obtain a cycle time and energy consumption model corresponding to each piece of equipment. Finally, the cycle time and energy consumption model corresponding to each piece of equipment determines the production line cycle time and energy consumption model. This invention utilizes the constructed production line cycle time and energy consumption model to adjust the process parameters of the high-strength and tough components during the thermoforming process, thereby reducing the energy consumption during the thermoforming of high-strength and tough components. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a flowchart illustrating an embodiment of a high-strength and tough component thermoforming method based on production line cycle time and energy consumption coordinated management provided by the present invention.

[0038] Figure 2 This is a flowchart of another embodiment of a high-strength and tough component thermoforming method based on production line cycle time and energy consumption coordinated management provided by the present invention. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0040] The terms "first", "second", and the like in the description and in the claims of this application do not by themselves convey any meaning of relative importance, priority, or quantity. Thus, the terms "first" and "second" can be used explicitly or implicitly to include at least one of the referenced features.

[0041] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are combinable with each other.

[0042] One specific embodiment of the application is shown in Figure 1 Figure 1 A method flowchart of one embodiment of a high-toughness member hot forming method based on line beat- energy consumption collaborative control provided by the application includes:

[0043] S101: respectively acquiring first process parameters of a high-toughness member in a roller hearth furnace heating process, second process parameters in a mechanical arm mold opening and closing process, and third process parameters in a press stamping and pressure maintaining process;

[0044] S102: based on the first process parameters, the second process parameters, and the third process parameters, respectively modeling the beat- energy consumption of the roller hearth furnace, the mechanical arm, and the press, obtaining a roller hearth furnace beat- energy consumption model, a mechanical arm beat- energy consumption model, and a press beat- energy consumption model, determining a line beat- energy consumption model based on the roller hearth furnace beat- energy consumption model, the mechanical arm beat- energy consumption model, and the press beat- energy consumption model, and adjusting the process parameters of the high-toughness member in hot forming based on the line beat- energy consumption model.

[0045] The application acquires the first process parameters of a high-toughness member in a roller hearth furnace heating process, the second process parameters in a mechanical arm mold opening and closing process, and the third process parameters in a press stamping and pressure maintaining process; then based on the first, second, and third process parameters, respectively models the beat- energy consumption of the roller hearth furnace, the mechanical arm, and the press, obtains a respective beat- energy consumption model for each device, and then the respective beat- energy consumption model for each device determines a line beat- energy consumption model. The application adjusts the process parameters of the high-toughness member in the hot forming process by using the constructed line beat- energy consumption model. The energy consumption in the high-toughness member hot forming process can be reduced.

[0046] In one embodiment of the application, the first process parameters include heating and holding time​ , heating set temperature , heating furnace power coefficient , and roller hearth furnace rated power ;

[0047] Mathematical modeling of the cycle-energy consumption of the roller hearth furnace based on the first process parameters to obtain a roller hearth furnace cycle-energy consumption model, including:

[0048]

[0049] wherein, is the heating furnace energy consumption of the high-toughness component heated and kept warm to the heating set temperature, is a function of the heating set temperature .

[0050] The second process parameters include the mechanical arm working time , the mechanical arm power coefficient , the mechanical arm linear speed , and the mechanical arm rated power ;

[0051] Mathematical modeling of the cycle-energy consumption of the mechanical arm based on the second process parameters to obtain a mechanical arm cycle-energy consumption model, including:

[0052]

[0053] wherein, is the mechanical arm energy consumption, is a function of the mechanical arm linear speed .

[0054] The third process parameters include the press punching time , the press holding time , the punching force , the punching speed , the power coefficient when the press is punching , the holding force , the power coefficient when the press is holding , and the rated power of the press ;

[0055] Mathematical modeling of the cycle-energy consumption of the press based on the third process parameters to obtain a press cycle-energy consumption model, including:

[0056]

[0057] wherein, is the press energy consumption, is the punching speed of the punching force . a multivariate function, a holding pressure a multivariate function.

[0058] Determine the production line beat- energy consumption model based on the roll bottom heating furnace beat- energy consumption model, mechanical arm beat- energy consumption model and press beat- energy consumption model, including:

[0059]

[0060] wherein, energy consumption per production of a high toughness component, , time per production of a high toughness component, , , and is the weight of the production line beat- energy consumption model.

[0061] First of all, it needs to be pointed out that because the brand, type and model of each device used in the production line are different in actual industrial production application, a series of power coefficients in the above model, such as , and other functions are different, which need to be analyzed on a case-by-case basis. The method to obtain the power coefficient of the equipment in the production line is: set different parameters for different equipment, measure the energy consumption of each equipment separately and solve the power coefficient, obtain a number of variable- power coefficient points, which can be fitted more accurately using numerical calculation software such as MATLAB or Origin. The power function is the expression after fitting.

[0062] From the above production line beat- energy consumption model, it can be seen that the main parameters affecting the energy consumption of the production line are the heating temperature , heating holding period in the first process parameter, the mechanical arm linear speed in the second process parameter and the stamping force , stamping speed and holding pressure in the third process parameter. Therefore, the process parameters of the high toughness component in hot forming can be adjusted to reduce energy consumption.

[0063] It can be understood that under the premise of ensuring the quality of the product, the production time is shortened as much as possible. Such as shortening the heating holding time , shortening the holding time , etc.; or try to reduce the energy consumption of each device except the mechanical arm. Such as reducing the heating temperature , reducing the stamping force and holding pressure , and increasing the linear speed of the mechanical arm.

[0064] One specific embodiment of the present application is shown as Figure 2 , Figure 2 A method flow chart of another embodiment of the high-toughness component hot forming method based on line beat-energy consumption collaborative control provided by the present application includes:

[0065] S201: heating the sheet material to a first preset temperature using a roller hearth furnace, and heating and holding for a first preset time;

[0066] S202: transferring the sheet material after heating and holding to a press using a mechanical arm, so that the press performs a stamping and holding operation on the sheet material after holding, wherein the transfer time is a second preset time, and the holding time is a third preset time;

[0067] S203: immersing the sheet material after stamping and holding in a cooling medium for quenching treatment to obtain a high-toughness component, wherein the first preset time, the second preset time, the third preset time, and the preset temperature are determined based on the above line beat-energy consumption model.

[0068] It can be understood that the first preset time is the heating and holding time in the first process parameter , i.e. the time from room temperature to the target temperature, which varies from 150s to 240s according to the sheet thickness and the heating target temperature. The roller hearth furnace implements zoned heating, and the front end discharges once every 15-30s, while the rear end feeds, and the feeding and discharging rhythm of the furnace is consistent to ensure the stability of the number of sheet materials in the furnace. The first preset temperature is the heating temperature in the first process parameter , which is 880-970℃, and the roller hearth furnace is used to quickly and uniformly heat the ultra-high strength steel sheet to 880-970℃ and hold.

[0069] The sheet material has heat conduction and heat radiation phenomena with the furnace roller and air during the transfer process, and the cooling rate is about 20-30℃ / s, and the second preset time is the mechanical arm working time in the second process parameter , i.e. the transfer time of the mechanical arm transfer process is 4-6s, and the sheet material cools down to 80-180℃ during the transfer process.

[0070] The press performs a stamping and holding work cycle, and each work cycle time is 12-32s, and the third preset time is the press holding time in the third process parameter , specifically 10-30s, the sheet forming temperature is 700-890℃, since the hot stamping die temperature is about 250℃, in the forming process, the average cooling rate of the sheet is about 15-25℃ / s, and the temperature after pressure holding is about 250-500℃. The die absorbs most of the heat in this process, and the temperature rises, and the die temperature is controlled at 200-300℃ by using the water channel in the die to cool the die in the idle state of the press. After the holding is completed, the sheet is immersed in a cooling medium for oil quenching treatment to obtain a high strength and toughness component.

[0071] The high strength and toughness component hot forming method based on line beat-energy collaborative management provided in the application heats and holds the sheet to a certain temperature by a roller hearth furnace, a mechanical arm puts the sheet into the mold, a press punches and forms the sheet, the formed component is held for a period of time after forming, then the mechanical arm takes the formed component out of the mold, and finally the component is quenched. It can help process personnel select the manufacturing process more simply and directly. And by using the constructed line beat-energy model to adjust the process parameters of the high strength and toughness component in the hot forming process. The overall energy consumption of the processing process is minimized, the efficiency is highest, and the production efficiency of the enterprise itself is improved.

[0072] The high strength and toughness component hot forming method based on line beat-energy collaborative management of the application will be described in detail below in combination with two specific embodiments.

[0073] Example 1:

[0074] The component produced by the line in Example 1 is an automobile B-pillar, and the sheet material is 22MnB5 high-strength steel with a thickness of 1.8mm. Referring to the high strength and toughness component hot forming processing method in the application, a batch of sheets are heated by a roller hearth furnace, the roller hearth furnace rated power is 2000kW, the heating temperature is 968℃, and the sheet heating and holding period is 235s. The end line speed of the mechanical arm is 327mm / s, and the sum of the up and down mold time is 3s. After the sheet is transferred to the mold, the press is immediately started to punch the sheet, the press rated power is 600kW, the punching force is 188kN, and the punching speed is 807mm / s. After punching and forming, the sheet is pressure held and heated, the pressure holding force is 290kN, and the pressure holding time is 13s. After the warm mold holding is completed, the mechanical arm B transfers the sheet to the conveyor belt, and then puts it into the oil for quenching heat treatment, and the high strength and toughness automobile B-pillar production is completed.

[0075] According to the power coefficient function expression measured and fitted in advance, the power coefficient of the heating furnace A in Example 1 is 0.727, the power coefficient of the mechanical arm is 0.732, and the power coefficient of the press is 0.241 and 0.517, respectively.

[0076] According to the formula , the energy consumption of the heating furnace in Example 1 is 74.723 kWh; according to the formula , the sum of the energy consumption of the mechanical arm A and the mechanical arm B is 0.045 kWh; according to the formula , the energy consumption of the press is 3.038 kWh; according to the formula , the total energy consumption of the production line is 77.806 kWh; according to the formula , the production cycle is 16 s; according to the formula , the cycle-energy consumption model of the production line is 8.171 kWh.

[0077] The actual energy consumption of each device in the production line in Example 1 measured by the electric energy meter is as follows: the energy consumption of the roller-type heating furnace A is 72.882 kWh, the sum of the energy consumption of the mechanical arm A and the mechanical arm B is 0.031 kWh, and the energy consumption of the press is 2.876 kWh. The actual total energy consumption of the production line is 75.789 kWh, and the actual cycle-energy consumption model of the production line is 7.869 kWh.

[0078] According to the above data, the error of the total energy consumption model of the production line in Example 1 is only 2.66%, and the error of the cycle-energy consumption model of the production line is 3.84%. The energy consumption of the heating furnace accounts for 63.06% in the cycle-energy consumption of the production line, the energy consumption of the press accounts for 36.55%, and the energy consumption of the mechanical arm accounts for only 0.39%.

[0079] Therefore, in Example 1, the key to the cycle-energy consumption collaborative regulation is to regulate the heating temperature and the heating and holding period of the heating furnace. The specific regulation method in Example 1 is to appropriately reduce the heating temperature and shorten the heating and holding period . For example, keeping the remaining parameters unchanged and the production cycle unchanged, reducing the heating temperature to 930℃ and shortening the heating and holding period to 178 s, the actual energy consumption of the heating furnace is reduced to 47.941 kWh, and the actual cycle-energy consumption of the production line is reduced to 7.379 kWh.

[0080] Example 2​​​​​​​​

[0081] Example 2: The production line produces automotive door rings. The sheet metal used is 22MnB5 high-strength steel with a thickness of 1.4mm. It is processed according to the high-strength and toughness component hot forming method described in this invention. A batch of sheet metal undergoes zone heating in a roller hearth furnace. The rated power of roller hearth furnace A is... 2000kW, heating temperature The heating and holding period for the sheet material is 950℃. The linear velocity at the end effector of the robotic arm is 200s. The sum of the upper and lower mold times is 250mm / s. The time is 4 seconds. After the sheet metal is transferred to the mold, the press is started to stamp the sheet metal, with a stamping force of 4 seconds. The stamping speed is 248kN. The speed is 366 mm / s. After stamping, the sheet metal is held under pressure and kept warm. The pressure holding and heat holding time is 714kN. The process takes 18 seconds. After the mold insulation is completed, robotic arm B transfers the sheet metal to the conveyor belt, and then immerses it in oil for quenching heat treatment, thus completing the production of the high-strength and tough automotive door ring.

[0082] Based on the power coefficient function expression measured and fitted in advance, the power coefficient of heating furnace A in Example 2 is... The power coefficient of the robotic arm is 0.642. The power coefficient of the press is 0.562. , The values ​​are 0.528 and 0.634, respectively.

[0083] In Example 2, the formula was used Energy consumption of heating furnace It is 56.599 kWh; using the formula The combined energy consumption of robotic arms A and B is 0.032 kWh; using the formula... The energy consumption of the press was found to be 3.898 kWh; using the formula... Obtain the total energy consumption of the production line It is 60.529 kWh; using the formula Get production rhythm It takes 22 seconds; finally, the formula is used. Obtain the production line cycle time-energy consumption model It is 10.156 kWh.

[0084] The actual energy consumption of each device in the production line measured by the electric energy meter in Example 2 is as follows: the energy consumption of the roller bottom heating furnace A is 55.736 kWh, the sum of the energy consumption of the mechanical arm A and the mechanical arm B is 0.026 kWh, and the energy consumption of the press is 3.778 kWh. The actual total energy consumption of the production line is 59.54 kWh, and the actual beat-energy consumption of the production line is 9.935 kWh.

[0085] Analysis of the above data shows that the total energy consumption model error of the production line in Example 2 is only 4.94%, and the beat-energy consumption model error of the production line is only 2.22%. The energy consumption of the heating furnace accounts for 61.72% of the beat-energy consumption of the production line, the energy consumption of the press accounts for 38.02%, and the energy consumption of the mechanical arm accounts for only 0.26%.

[0086] Unlike Example 1, the problem in Example 2 is that the production beat of the production line is unreasonable. The key to the beat-energy consumption collaborative control in Example 2 is to match the beat of the stamping forming stage with the beat of the warm die heat preservation and pressure maintaining stage. For example, increase the mechanical arm line speed to 350 mm / s, shorten the sum of the upper and lower die times to 2.8 s, increase the stamping speed to 550 mm / s, shorten the pressure maintaining and heat preserving time to 10 s, and keep other parameters unchanged. After the adjustment, the production beat of the production line is shortened to 13 s, the energy consumption of the press is reduced to 2.689 kWh, and the actual beat-energy consumption of the production line is reduced to 7.615 kWh.

[0087] In addition, including the above two groups of examples, the present application has made a total of 8 groups of examples. The production line parameters and finished product quality of the 8 groups of examples are shown in Table 1 and Table 2, respectively,

[0088] Table 1 Hot stamping process and production line parameters

[0089]

[0090] Table 2 Tensile strength and microstructure of hot stamping components

[0091]

[0092] In summary, the hot forming method of high strength and toughness components based on the collaborative control of the beat-energy consumption of the production line has the following points:

[0093] 1. On the premise of ensuring the quality of the products, try to shorten the production beat . For example, shorten the heating and heat preserving period , shorten the pressure maintaining time , etc. Generally, shortening the production beat not only improves the production efficiency but also reduces the energy consumption of the production line.

[0094] ​​2、In the premise of ensuring product quality, try to reduce the energy consumption of each device except the mechanical arm. For example, reduce the heating temperature , reduce the stamping force and the holding force , etc. On the contrary, the energy consumption of the mechanical arm can be basically ignored, and the linear speed of the mechanical arm can be increased to shorten the beat under the premise of ensuring stability.

[0095] 3、Match the beat of each stage, and make the work of each device on the production line coordinated and compact.

[0096] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any change or replacement that can be easily thought of by those skilled in the art within the technical range disclosed by the present application should be covered within the protection scope of the present application.

Claims

1. A high-toughness component hot forming method based on line beat-energy consumption collaborative management and control, characterized in that, The high-toughness component is prepared based on a high-toughness component hot forming production line, the high-toughness component hot forming production line comprises a roller hearth furnace, a mechanical arm and a press, and the method comprises: respectively acquiring first process parameters of the high-toughness component in a heating process of the roller hearth furnace, second process parameters in a mold opening and closing process of the mechanical arm and third process parameters in a stamping and pressure maintaining process of the press; mathematical modeling of the cycle-energy consumption of the roller hearth furnace, the mechanical arm and the press based on the first process parameters, the second process parameters and the third process parameters, respectively, to obtain a roller hearth furnace cycle-energy consumption model, a mechanical arm cycle-energy consumption model and a press cycle-energy consumption model, determining a production line cycle-energy consumption model based on the roller hearth furnace cycle-energy consumption model, the mechanical arm cycle-energy consumption model and the press cycle-energy consumption model, and adjusting the process parameters of the high-toughness component in hot forming based on the production line cycle-energy consumption model; The first process parameters include heating holding time , heating set temperature , heating furnace power coefficient , and roller hearth furnace rated power ; mathematical modeling of the cycle-energy consumption of the roller hearth furnace based on the first process parameters to obtain a roller hearth furnace cycle-energy consumption model, comprising: wherein, the energy consumption of the heating furnace for heating and holding the high-tenacity member to the heating set temperature, is a function of the heating set temperature . The second process parameter includes mechanical arm working time , mechanical arm power coefficient , mechanical arm linear speed and mechanical arm rated power ; mathematical modeling of the cycle-energy consumption of the mechanical arm based on the second process parameters to obtain a mechanical arm cycle-energy consumption model, comprising: wherein, is the mechanical arm energy consumption, is the mechanical arm linear velocity as a function of; the third process parameter comprises a press stroke time , a press dwell time , a stroke force , a stroke speed , a power coefficient at press stroke , a dwell force , a power coefficient at press dwell , and a rated power of the press ; mathematical modeling of the cycle-energy consumption of the press based on the third process parameters to obtain a press cycle-energy consumption model, comprising: wherein, is the energy consumption of the press, is the punching force is the punching speed is a multivariate function, is a multivariate function of the holding force is a multivariate function; determining a production line cycle-energy consumption model based on the roller hearth furnace cycle-energy consumption model, the mechanical arm cycle-energy consumption model and the press cycle-energy consumption model, comprising: wherein, the energy consumption for producing one high toughness member, the time for producing one high toughness member, , , and is the weight of the line-takt-energy model.

2. The high-toughness component hot forming method based on line tact-time-energy collaborative management according to claim 1, characterized in that, comprising: heating the plate material to a preset temperature using the roller hearth furnace and maintaining the temperature for a first preset time; transferring the plate material after heating and maintaining to the press using the mechanical arm to enable the press to perform a stamping and pressure maintaining operation on the plate material after maintaining, wherein the transfer time is a second preset time and the pressure maintaining time is a third preset time; immersing the plate material after stamping and pressure maintaining in a cooling medium for quenching treatment to obtain a high-toughness component, wherein the first preset time, the second preset time, the third preset time and the preset temperature are determined based on the production line cycle-energy consumption model.

3. The high-toughness component hot forming method based on line tact-time-energy collaborative management according to claim 2, characterized in that, The preset temperature is 880-970℃, and the first preset time is 150-240s. The heating mode of the roller hearth furnace is zoned heating.

4. The high-toughness component hot forming method based on line tact-time-energy collaborative management according to claim 2, characterized in that, The second preset time is 4-6s.

5. The high tough component hot forming method based on line tact-time-energy consumption collaborative management according to claim 2, characterized in that, The third preset time is 10-30s. The working mode of the press is cyclic stamping and pressure maintaining.

6. The high toughened component hot forming method based on line tact-time-energy consumption collaborative management according to claim 2, characterized in that, The quenching treatment comprises oil quenching treatment.

Images