Stamping method, device and equipment for alloyed hot-dip galvanized steel plate and medium

Abstract

The invention discloses a stamping method, device and equipment for an alloyed hot-dip galvanized steel plate and a medium, and belongs to the technical field of metallurgy. The method comprises the steps that a simulation draw bead is used for conducting stamping simulation on a target steel plate, the simulation plastic strain value of the target steel plate is obtained, and the target steel plate is an alloyed hot-dip galvanized steel plate; if the simulation plastic strain value is not within the preset initial strain value range, simulation parameters of the simulation draw bead are adjusted until the simulation plastic strain value is within the initial strain value range, and simulation formability parameters of a simulation part obtained after stamping simulation are obtained; if the simulation formability parameters meet the preset requirements, the adjusted simulation parameters serve as target parameters; and performing real stamping on the target steel plate by using the real draw bead with the real parameter as the target parameter. According to the method, the real parameters of the real draw bead of the stamping target steel plate can be obtained through simulation, and parts obtained through stamping by using the real parameters have few wrinkles or cracks.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal stamping and forming, and in particular to a stamping method, device, equipment and medium for alloyed hot-dip galvanized steel sheets. Background Art

[0002] Galvanized steel refers to steel that has been converted from pure zinc to an iron-zinc alloy layer by alloying during the hot-dip galvanizing process. This treatment process can significantly improve the corrosion resistance, weldability and painting performance of the steel, while maintaining good mechanical properties and surface brightness.

[0003] In the prior art, the required parts are obtained by stamping the alloyed hot-dip galvanized steel sheet. During stamping, draw ribs are used to increase the resistance of the sheet (alloyed hot-dip galvanized steel sheet) during flow, and to adjust and control the force of the pressing surface, thereby achieving precise control of the material flow.

[0004] However, the parameters of draw beads during stamping are set based on production experience. The matching degree between the parameters of draw beads set based on production experience and the customer's requirements for the formability of parts is limited, resulting in frequent formability problems such as wrinkling or cracking in the parts obtained after stamping. Summary of the invention

[0005] In view of the above problems, the present invention is proposed to provide a stamping method, device, equipment and medium for alloyed hot-dip galvanized steel plates that solve the above problems. The parameters of the draw ribs of the stamped target steel plates can be obtained by simulation, and the parts obtained by stamping using the parameters rarely have wrinkling or cracking problems, so that their formability can meet the user's requirements.

[0006] In a first aspect, the present invention provides a stamping method for an alloyed hot-dip galvanized steel sheet, the method comprising:

[0007] Using simulated drawbeads to perform stamping simulation on a target steel plate to obtain a simulated plastic strain value of the target steel plate, wherein the target steel plate is an alloyed hot-dip galvanized steel plate;

[0008] If the simulated plastic strain value is not within the preset initial strain value range, the simulation parameters of the simulated draw bead are adjusted until the simulated plastic strain value is within the initial strain value range, and the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained; the simulation parameters include the simulated height, and the simulated formability parameters include the simulated maximum thinning rate, the simulated thickness uniformity, the simulated forming limit value and the simulated springback amount;

[0009] If the simulated formability parameters meet the preset requirements, the adjusted simulation parameters are used as target parameters;

[0010] The target steel plate is actually stamped using a real draw bead whose real parameters are the target parameters.

[0011] Optionally, the adjusting the simulation parameters of the simulated drawbead includes:

[0012] Obtaining the iron content of the surface of the target steel plate coating;

[0013] Determining a single adjustment amount of the simulation parameter according to the iron content;

[0014] Each time the simulation parameter is adjusted, the adjustment is performed according to the single adjustment amount.

[0015] Optionally, determining a single adjustment amount of the simulation parameter according to the iron content includes:

[0016] If the iron content is less than or equal to a preset first content threshold, determining the single adjustment amount of the simulation parameter to be a first value;

[0017] If the iron content is greater than the first content threshold and less than a preset second content threshold, determining the single adjustment amount of the simulation parameter to be a second value;

[0018] If the iron content is greater than or equal to the second content threshold, determining the single adjustment amount of the simulation parameter to be a third value;

[0019] The first value is greater than the second value, and the second value is greater than the third value.

[0020] Optionally, if the simulated plastic strain value is not within a preset initial strain value range, adjusting the simulation parameters of the simulated drawbead includes:

[0021] If the simulated plastic strain value is greater than an upper limit of a preset initial strain value range, reducing the simulated height of the simulated drawbead;

[0022] If the simulated plastic strain value is less than the lower limit of the initial strain value range, the simulated height of the simulated drawbead is increased.

[0023] Optionally, after acquiring the simulated formability parameters of the simulated part obtained after the stamping simulation, the method further includes:

[0024] If the simulated formability parameters do not meet the preset requirements, the initial strain value range is adjusted until the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements, and the corresponding simulation parameters when the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements are used as target parameters.

[0025] Optionally, if the simulated formability parameter does not meet the preset requirement, adjusting the initial strain value range includes:

[0026] If the simulated maximum thinning rate in the simulated formability parameter is greater than a preset first thinning rate threshold, lowering the lower limit value of the initial strain value range;

[0027] If the simulated maximum thinning rate in the simulated formability parameter is less than a preset second thinning rate threshold, and the simulated springback amount is greater than a preset springback amount threshold, increasing the upper limit value of the initial strain value range;

[0028] The second thinning rate threshold is smaller than the first thinning rate threshold.

[0029] Optionally, after performing stamping simulation on the target steel plate using the simulated draw bead to obtain the simulated plastic strain value of the target steel plate, the method includes:

[0030] If the simulated plastic strain value is within the initial strain value range, the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained.

[0031] In a second aspect, the present invention provides a stamping device for alloyed hot-dip galvanized steel sheets, the device comprising:

[0032] A simulation module, used for performing stamping simulation on a target steel plate using simulated drawbeads to obtain a simulated plastic strain value of the target steel plate, wherein the target steel plate is an alloyed hot-dip galvanized steel plate;

[0033] A first adjustment module is used for adjusting the simulation parameters of the simulated drawbead if the simulated plastic strain value is not within the preset initial strain value range, until the simulated plastic strain value is within the initial strain value range, and obtaining the simulated formability parameters of the simulated part obtained after the stamping simulation; the simulation parameters include the simulated height, and the simulated formability parameters include the simulated maximum thinning rate, the simulated thickness uniformity, the simulated forming limit value and the simulated springback amount;

[0034] A determination module, configured to use the adjusted simulation parameters as target parameters if the simulation formability parameters meet preset requirements;

[0035] The stamping module is used to perform real stamping on the target steel plate using real draw beads whose real parameters are the target parameters.

[0036] In a third aspect, the present invention provides an electronic device comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method described in the first aspect by executing the computer instructions.

[0037] In a fourth aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the method described in the first aspect.

[0038] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:

[0039] A stamping method, device, equipment and medium for an alloyed hot-dip galvanized steel plate provided by an embodiment of the present invention can use simulated drawbeads to perform stamping simulation on a target steel plate to obtain a simulated plastic strain value of the target steel plate, and simulate the stamping process of the target steel plate by simulation, wherein the target steel plate is an alloyed hot-dip galvanized steel plate; if the simulated plastic strain value is not within the preset initial strain value range, it means that the degree of plastic deformation of the target steel plate does not meet the requirements, then the simulation parameters of the simulated drawbeads are adjusted until the simulated plastic strain value is within the initial strain value range, that is, the simulated plastic strain value is changed by adjusting the simulation parameters, and the simulated formability parameters of the simulated parts obtained after the stamping simulation are obtained, and the stamping effect is reflected by the simulated formability parameters; if the simulated formability parameters meet the preset requirements, it means that the stamping effect meets the customer requirements, and the adjusted simulation parameters are used as the target parameters; the target steel plate is actually stamped using real drawbeads with real parameters as the target parameters, so that the parts obtained by the actual stamping do not have wrinkling or cracking problems, so that the formability of the parts can meet the user's requirements.

[0040] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 It is a flow chart of a stamping method of an alloyed hot-dip galvanized steel plate provided by an embodiment of the present invention;

[0043] Figure 2 It is a structural block diagram of a stamping device for alloyed hot-dip galvanized steel plates provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the implementation mode of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0045] Figure 1 : is a flow chart of a stamping method for alloyed hot-dip galvanized steel sheet provided by an embodiment of the present invention, such as Figure 1 As shown, the method includes:

[0046] Step S110: Use the simulated drawbead to perform stamping simulation on the target steel plate to obtain a simulated plastic strain value of the target steel plate.

[0047] Among them, the target steel plate is alloyed hot-dip galvanized steel plate.

[0048] In the embodiment of the present application, a stamping simulation model can be pre-established according to the characteristics of the target steel plate, the model of the simulated drawbead and the geometric model of the die, and after setting the relevant parameters of the stamping simulation model, the stamping simulation is performed through the stamping simulation model, and the stamping simulation model will output the simulated plastic strain value of the target steel plate during the stamping process. Among them, the relevant parameters include the parameters of the simulated drawbead.

[0049] Among them, the plastic strain value refers to the strain that remains in the material unit after all stress disappears, also known as permanent strain. Plastic strain is the strain generated when the material enters the plastic stage during the stress process. Unlike elastic strain, plastic strain will not completely disappear after the stress disappears.

[0050] Step S120: If the simulated plastic strain value is not within the preset initial strain value range, adjust the simulation parameters of the simulated draw bead until the simulated plastic strain value is within the initial strain value range, and obtain the simulated formability parameters of the simulated part obtained after the stamping simulation.

[0051] The simulation parameters include the simulation height.

[0052] In the embodiment of the present application, the target steel plate will undergo plastic deformation during the stamping process. When the plastic deformation of the target steel plate is too large, excessive thinning or even rupture will occur, resulting in the parts being unusable; when the plastic deformation of the target steel plate is too small, the forming capacity of the material is not fully utilized, and wrinkling and instability may even occur, which may also easily lead to severe springback of the parts after forming. The plastic strain value can reflect the degree of plastic deformation. Therefore, when performing simulated stamping, it is necessary to control the simulated plastic strain value to remain within a strain value range so that the simulated plastic deformation degree is neither too large nor too small. When the simulation is performed for the first time, the strain value range is the initial strain value range.

[0053] Among them, the initial strain value ranges corresponding to different materials and different parts are different, and the target steel plates of different materials have different grades, and the target steel plates used by different parts may also have different grades. Therefore, the corresponding initial critical strain value can be determined according to the grade of the target steel plate, and the initial strain value range can be determined according to the initial critical strain value, so that the initial strain value range of target steel plates of different grades can be obtained. For example, the initial critical strain value of high-strength steel can be set to 2%, and the initial strain value range can be (2±a)%, and the size of a can be set according to actual conditions.

[0054] It should be noted that the steel mill can pre-construct a corresponding relationship table between the initial critical strain value and the grade based on production experience. The initial critical strain value corresponding to the target steel plate of different grades can be found through the relationship table, so as to obtain the corresponding initial strain value range.

[0055] In the embodiment of the present application, during the stamping process, different parameters of the drawbead can cause the target steel plate to produce different degrees of plastic deformation. Therefore, if the simulated plastic strain value is not within the preset initial strain value range, it means that the simulated plastic strain value is not near the initial critical strain value, and the target steel plate may have cracking or wrinkling problems after stamping. Then, the simulated plastic strain value of the target steel plate is changed by adjusting the simulation parameters of the simulated drawbead. In the process of adjusting the simulation parameters of the simulated drawbead, the simulation parameters can be changed by a single adjustment amount each time, and then the adjusted simulated plastic strain value is compared to see whether it is within the initial strain value range. If the adjusted simulated plastic strain value is not within the initial strain value range, the adjusted simulation parameters are changed by a single adjustment amount again. Once the adjusted simulated plastic strain value is within the initial strain value range, stop adjusting, and at the same time obtain the simulated formability parameters of the simulated part obtained after the stamping simulation, and reflect the formability of the target steel plate after the simulated stamping through the simulated formability parameters.

[0056] Among them, the simulated formability parameters include simulated maximum thinning rate, simulated thickness uniformity, simulated forming limit value and simulated springback.

[0057] Optionally, after step S110, the method further includes:

[0058] If the simulated plastic strain value is within the initial strain value range, the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained.

[0059] In an embodiment of the present application, if the simulated plastic strain value is within the initial strain value range, it means that the degree of plastic deformation of the target steel plate is neither too large nor too small, and the probability of cracking or wrinkling of the target steel plate after stamping is low. Therefore, the simulated formability parameters of the simulated part obtained after the stamping simulation can be directly obtained to execute the subsequent step S130.

[0060] Step S130: If the simulated formability parameters meet the preset requirements, the adjusted simulation parameters are used as target parameters.

[0061] Among them, the preset requirements can be set according to the customer's formability requirements for the parts.

[0062] In the embodiment of the present application, if the simulated formability parameters meet the preset requirements, it means that the parts after simulated stamping meet the customer's requirements for formability, and the adjusted simulation parameters are used as target parameters.

[0063] Optionally, after step S120, the method further includes:

[0064] If the simulated formability parameters do not meet the preset requirements, the initial strain value range is adjusted until the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements, and the corresponding simulation parameters when the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements are used as target parameters.

[0065] In an embodiment of the present application, if the simulated formability parameters do not meet the preset requirements, it means that the parts after simulated stamping do not meet the customer's formability requirements, and the initial strain value range is inappropriate. At this time, the initial strain value range can be adjusted. After a single adjustment, it is determined whether the simulated plastic strain value is within the adjusted initial strain value range. If the simulated plastic strain value is within the adjusted initial strain value range, the simulated formability parameters of the simulated parts obtained by the stamping simulation after adjusting the initial strain value range are obtained. If the simulated formability parameters obtained after adjustment still do not meet the preset requirements, the initial strain value range is continued to be adjusted until the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters obtained after adjustment meet the preset requirements, the initial strain value range is stopped from being adjusted, and the corresponding simulation parameters when the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements are used as target parameters, and the corresponding initial strain value range is used as the target strain value range, and step S140 is executed.

[0066] Among them, in the process of adjusting the initial strain value range, if the simulated plastic strain value is not within the adjusted initial strain value range, the simulation parameters of the simulated drawbead are adjusted until the simulated plastic strain value is within the adjusted initial strain value range, and the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained. In other words, when judging whether the simulated formability parameters of the simulated part meet the requirements, it is necessary to ensure that the simulated plastic strain value is within the initial strain value range before and after the adjustment or after the adjustment, otherwise, it is meaningless to judge whether the simulated formability parameters of the simulated part meet the requirements, and it is highly likely that the requirements will not be met.

[0067] Step S140: Perform real stamping on the target steel plate using real draw beads whose real parameters are target parameters.

[0068] In the embodiment of the present application, the target parameters are obtained, that is, the optimal parameters of the draw ribs during stamping. Therefore, actual stamping and production can be carried out at this time. The actual parameters of the actual draw ribs during actual stamping and production must be the same as the target parameters, so that the formability of the parts obtained after stamping meets customer requirements.

[0069] Among them, when performing stamping simulation again, the simulated draw bead will have a simulated motion trajectory. In the actual stamping process, the actual running trajectory of the real draw bead can refer to the simulated motion trajectory, so that the formability of the parts obtained after actual stamping can meet the expectations.

[0070] Optionally, step S120 includes:

[0071] The first step is to obtain the iron content on the surface of the target steel plate coating.

[0072] In the embodiment of the present application, the surface of the alloyed hot-dip galvanized steel sheet has a zinc-based coating, which plays a role in corrosion protection and lubrication. The higher the iron content on the surface of the zinc-based coating, the greater the hardness of the coating, which will have a certain impact on the formability of the steel sheet. Therefore, when adjusting the simulation parameters, the influence of the iron content on the adjustment amount each time (i.e., the single adjustment amount) can be considered. Among them, the measurement of the iron content can be carried out by methods such as the energy spectrum of a scanning electron microscope, an electron probe and a glow test.

[0073] The second step is to determine the single adjustment amount of the simulation parameters according to the iron content.

[0074] In the embodiment of the present application, the iron content affects the formability of the steel plate. Under the same single adjustment amount, different iron contents may cause different changes in the simulated plastic strain value. Therefore, the single adjustment amount of the simulation parameter can be determined according to the iron content, and different iron contents correspond to different single adjustment amounts. Among them, the iron content is negatively correlated with the simple adjustment amount.

[0075] Step 3: Each time you adjust the simulation parameters, make adjustments according to the single adjustment amount.

[0076] In the embodiment of the present application, when the single adjustment amount is determined, the simulation parameter is changed by the single adjustment amount each time.

[0077] Optionally, the second step includes:

[0078] If the iron content is less than or equal to the preset first content threshold, the single adjustment amount of the simulation parameter is determined to be the first value; if the iron content is greater than the first content threshold and less than the preset second content threshold, the single adjustment amount of the simulation parameter is determined to be the second value; if the iron content is greater than or equal to the second content threshold, the single adjustment amount of the simulation parameter is determined to be the third value.

[0079] The first value is greater than the second value, and the second value is greater than the third value.

[0080] In the embodiment of the present application, the greater the iron content, the greater the hardness of the coating, so the corresponding single adjustment amount needs to be set smaller so that the change in the simulated plastic strain value will not be too large. Conversely, the smaller the iron content, the smaller the hardness of the coating, so the corresponding single adjustment amount can be set larger so that the change in the simulated plastic strain value will not be too small.

[0081] Exemplarily, the first content threshold may be 8%, the second content threshold may be 10%, the first value may be 1 mm, the second value may be 0.8 mm, and the third value may be 0.5 mm.

[0082] Optionally, step S120 includes:

[0083] If the simulated plastic strain value is greater than the upper limit of the preset initial strain value range, the simulated height of the simulated drawbead is reduced; if the simulated plastic strain value is less than the lower limit of the initial strain value range, the simulated height of the simulated drawbead is increased.

[0084] The simulation parameters also include parameters such as simulation width and simulation radius.

[0085] In the embodiment of the present application, since the simulated height of the simulated drawbead has the greatest influence on the simulated plastic strain value, and the parameters such as the simulated width and the simulated radius have a smaller influence on the simulated plastic strain value, the simulated plastic strain value can be changed only by adjusting the simulated height of the simulated drawbead. Of course, the parameters such as the simulated height, the simulated width and the simulated radius can also be adjusted at the same time, and different adjustment weights are set for each parameter. The greater the influence on the simulated plastic strain value, the higher the adjustment weight is, so as to achieve a better adjustment effect.

[0086] Specifically, if the simulated plastic strain value is greater than the upper limit of the preset initial strain value range, the simulated plastic strain value is reduced by reducing the simulated height of the simulated drawbead; if the simulated plastic strain value is less than the lower limit of the initial strain value range, the simulated plastic strain value is increased by increasing the simulated height of the simulated drawbead. By adjusting the simulated height of the simulated drawbead, it is ensured that the simulated plastic strain value of the target steel plate flowing through the simulated drawbead is maintained within the strain value range before or after adjustment, ensuring the uniformity of the target steel plate forming and improving the quality of the parts after stamping.

[0087] Optionally, step S130 includes:

[0088] If the simulated maximum thinning rate in the simulated formability parameters is greater than the preset first thinning rate threshold, the lower limit value of the initial strain value range is reduced; if the simulated maximum thinning rate in the simulated formability parameters is less than the preset second thinning rate threshold, and the simulated springback amount is greater than the preset springback amount threshold, the upper limit value of the initial strain value range is increased.

[0089] The second thinning rate threshold is smaller than the first thinning rate threshold.

[0090] In the embodiment of the present application, when the simulated formability parameters do not meet the preset requirements, it is necessary to adjust the initial strain value range so that simulated stamping can be performed according to the adjusted initial strain value range to obtain parts that meet the formability requirements.

[0091] Specifically, when the simulated maximum thinning rate in the simulated formability parameters is large, it means that the initial critical strain value is too large and the lower limit of the initial strain value range is also too large, so lowering the lower limit of the initial strain value range also reduces the initial critical strain value in disguise; when the simulated maximum thinning rate in the simulated formability parameters is small, but the simulated springback is large, it means that the initial critical strain value is too small and the upper limit of the initial strain value range is too small, so increasing the upper limit of the initial strain value range also increases the initial critical strain value in disguise.

[0092] The size of the initial strain value range before and after the adjustment can remain unchanged, so that when the upper limit or lower limit of the initial strain value changes, the initial critical strain value will also change accordingly.

[0093] Based on the same inventive concept, the embodiment of the present invention also provides a stamping device for alloyed hot-dip galvanized steel sheet. Figure 2 : is a structural block diagram of a stamping device for alloyed hot-dip galvanized steel sheet provided by an embodiment of the present invention, such as Figure 2 As shown, the device 200 includes

[0094] A simulation module 201 is used to perform stamping simulation on a target steel plate using simulated drawbeads to obtain a simulated plastic strain value of the target steel plate, where the target steel plate is an alloyed hot-dip galvanized steel plate;

[0095] The first adjustment module 202 is used to adjust the simulation parameters of the simulated drawbead if the simulated plastic strain value is not within the preset initial strain value range, until the simulated plastic strain value is within the initial strain value range, and obtain the simulated formability parameters of the simulated part obtained after the stamping simulation; the simulation parameters include the simulated height, and the simulated formability parameters include the simulated maximum thinning rate, the simulated thickness uniformity, the simulated forming limit value and the simulated springback amount;

[0096] A determination module 203 is used to use the adjusted simulation parameters as target parameters if the simulation formability parameters meet the preset requirements;

[0097] The stamping module 204 is used to perform real stamping on the target steel plate using real drawbeads whose real parameters are target parameters.

[0098] Optionally, the first adjustment module 202 includes:

[0099] An acquisition unit, used to acquire the iron content of the surface of the target steel plate coating;

[0100] A determination unit, used to determine a single adjustment amount of a simulation parameter according to the iron content;

[0101] The adjustment unit is used to adjust the simulation parameters according to a single adjustment amount each time.

[0102] Optionally, the determining unit is further configured to:

[0103] If the iron content is less than or equal to a preset first content threshold, determining the single adjustment amount of the simulation parameter to be a first value;

[0104] If the iron content is greater than the first content threshold and less than the preset second content threshold, determining the single adjustment amount of the simulation parameter to be the second value;

[0105] If the iron content is greater than or equal to the second content threshold, determining the single adjustment amount of the simulation parameter to be a third value;

[0106] The first value is greater than the second value, and the second value is greater than the third value.

[0107] Optionally, the first adjustment module 202 is further configured to:

[0108] If the simulated plastic strain value is greater than the upper limit of the preset initial strain value range, the simulated height of the simulated drawbead is reduced;

[0109] If the simulated plastic strain value is less than the lower limit of the initial strain value range, the simulated height of the simulated drawbead is increased.

[0110] Optionally, the device 200 further includes:

[0111] The second adjustment module is used to adjust the initial strain value range if the simulated formability parameters do not meet the preset requirements until the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements, and use the corresponding simulation parameters when the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements as target parameters.

[0112] Optionally, the second regulating module is further used for:

[0113] If the simulated maximum thinning rate in the simulated formability parameter is greater than a preset first thinning rate threshold, lowering the lower limit of the initial strain value range;

[0114] If the simulated maximum thinning rate in the simulated formability parameter is less than the preset second thinning rate threshold, and the simulated springback amount is greater than the preset springback amount threshold, then the upper limit value of the initial strain value range is increased;

[0115] The second thinning rate threshold is smaller than the first thinning rate threshold.

[0116] Optionally, the apparatus 200 includes an acquisition module, configured to:

[0117] If the simulated plastic strain value is within the initial strain value range, the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained.

[0118] It can be understood that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0119] An embodiment of the present invention further provides an electronic device, which may include a processor and a memory, wherein the processor and the memory may be communicatively connected to each other via a bus or other means.

[0120] The processor may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application, or may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components and other chips, or a combination of the above-mentioned chips.

[0121] The memory may include a large capacity memory for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory may include a removable or non-removable (or fixed) medium. Where appropriate, the memory may be inside or outside the electronic device. In a particular embodiment, the memory may be a non-volatile solid-state memory.

[0122] In one example, the memory may be a read-only memory (ROM). In one example, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.

[0123] The processor implements any one of the stamping methods for alloyed hot-dip galvanized steel sheets in the above embodiments by reading and executing computer program instructions stored in the memory.

[0124] In one example, the electronic device may further include a communication interface and a bus. Among them, the processor, memory, and communication interface are connected through a bus and communicate with each other. The communication interface is mainly used to realize the communication between the modules, devices, units and / or devices in the embodiment of the present application. Where appropriate, the bus may include one or more buses.

[0125] In addition, in combination with the stamping method of the alloyed hot-dip galvanized steel sheet in the above embodiment, the embodiment of the present invention can provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the stamping methods of the alloyed hot-dip galvanized steel sheet in the above embodiment is implemented.

[0126] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0127] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0128] A stamping method, device, equipment and medium for an alloyed hot-dip galvanized steel plate provided by an embodiment of the present invention can use simulated drawbeads to perform stamping simulation on a target steel plate to obtain a simulated plastic strain value of the target steel plate, and simulate the stamping process of the target steel plate by simulation, wherein the target steel plate is an alloyed hot-dip galvanized steel plate; if the simulated plastic strain value is not within the preset initial strain value range, it means that the degree of plastic deformation of the target steel plate does not meet the requirements, then the simulation parameters of the simulated drawbeads are adjusted until the simulated plastic strain value is within the initial strain value range, that is, the simulated plastic strain value is changed by adjusting the simulation parameters, and the simulated formability parameters of the simulated parts obtained after the stamping simulation are obtained, and the stamping effect is reflected by the simulated formability parameters; if the simulated formability parameters meet the preset requirements, it means that the stamping effect meets the customer requirements, and the adjusted simulation parameters are used as the target parameters; the target steel plate is actually stamped using real drawbeads with real parameters as the target parameters, so that the parts obtained by the actual stamping do not have wrinkling or cracking problems, so that the formability of the parts can meet the user's requirements.

[0129] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0130] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. More specifically, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present invention.

[0131] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "one" or "an" preceding a component does not exclude the presence of a plurality of such components. The present invention may be implemented by means of hardware comprising a number of different components and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

Claims

1. A stamping method for alloyed hot-dip galvanized steel sheet, characterized in that: The method comprises: Using simulated drawbeads to perform stamping simulation on a target steel plate to obtain a simulated plastic strain value of the target steel plate, wherein the target steel plate is an alloyed hot-dip galvanized steel plate; If the simulated plastic strain value is not within the preset initial strain value range, the simulation parameters of the simulated draw bead are adjusted until the simulated plastic strain value is within the initial strain value range, and the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained; the simulation parameters include the simulated height, and the simulated formability parameters include the simulated maximum thinning rate, the simulated thickness uniformity, the simulated forming limit value and the simulated springback amount; If the simulated formability parameters meet the preset requirements, the adjusted simulation parameters are used as target parameters; The target steel plate is actually stamped using a real draw bead whose real parameters are the target parameters.

2. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 1, characterized in that: The step of adjusting the simulation parameters of the simulated drawbead comprises: Obtaining the iron content of the surface of the target steel plate coating; Determining a single adjustment amount of the simulation parameter according to the iron content; Each time the simulation parameter is adjusted, the adjustment is performed according to the single adjustment amount.

3. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 2, characterized in that: The step of determining the single adjustment amount of the simulation parameter according to the iron content includes: If the iron content is less than or equal to a preset first content threshold, determining the single adjustment amount of the simulation parameter to be a first value; If the iron content is greater than the first content threshold and less than a preset second content threshold, determining the single adjustment amount of the simulation parameter to be a second value; If the iron content is greater than or equal to the second content threshold, determining the single adjustment amount of the simulation parameter to be a third value; The first value is greater than the second value, and the second value is greater than the third value.

4. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 1, characterized in that: If the simulated plastic strain value is not within a preset initial strain value range, adjusting the simulation parameters of the simulated drawbead includes: If the simulated plastic strain value is greater than an upper limit of a preset initial strain value range, reducing the simulated height of the simulated drawbead; If the simulated plastic strain value is less than the lower limit of the initial strain value range, the simulated height of the simulated drawbead is increased.

5. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 1, characterized in that: After obtaining the simulated formability parameters of the simulated part obtained after the stamping simulation, the method further includes: If the simulated formability parameters do not meet the preset requirements, the initial strain value range is adjusted until the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements, and the corresponding simulation parameters when the simulated plastic strain value is within the adjusted initial strain value range and the simulated formability parameters meet the preset requirements are used as target parameters.

6. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 5, characterized in that: If the simulated formability parameter does not meet the preset requirement, adjusting the initial strain value range includes: If the simulated maximum thinning rate in the simulated formability parameter is greater than a preset first thinning rate threshold, lowering the lower limit value of the initial strain value range; If the simulated maximum thinning rate in the simulated formability parameter is less than a preset second thinning rate threshold, and the simulated springback amount is greater than a preset springback amount threshold, increasing the upper limit value of the initial strain value range; The second thinning rate threshold is smaller than the first thinning rate threshold.

7. The stamping method of alloyed hot-dip galvanized steel sheet according to claim 1, characterized in that: After the target steel plate is subjected to stamping simulation using the simulated drawbead to obtain the simulated plastic strain value of the target steel plate, the method comprises: If the simulated plastic strain value is within the initial strain value range, the simulated formability parameters of the simulated part obtained after the stamping simulation are obtained.

8. A stamping device for alloyed hot-dip galvanized steel sheet, characterized in that: The device comprises: A simulation module, used for performing stamping simulation on a target steel plate using simulated drawbeads to obtain a simulated plastic strain value of the target steel plate, wherein the target steel plate is an alloyed hot-dip galvanized steel plate; A first adjustment module is used for adjusting the simulation parameters of the simulated drawbead if the simulated plastic strain value is not within the preset initial strain value range, until the simulated plastic strain value is within the initial strain value range, and obtaining the simulated formability parameters of the simulated part obtained after the stamping simulation; the simulation parameters include the simulated height, and the simulated formability parameters include the simulated maximum thinning rate, the simulated thickness uniformity, the simulated forming limit value and the simulated springback amount; A determination module, configured to use the adjusted simulation parameters as target parameters if the simulation formability parameters meet preset requirements; The stamping module is used to perform real stamping on the target steel plate using real draw beads whose real parameters are the target parameters.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 7.

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