CN116894294A - Method, device, terminal and storage medium for enlarging forming margin of stamping die - Google Patents

Method, device, terminal and storage medium for enlarging forming margin of stamping die Download PDF

Info

Publication number
CN116894294A
CN116894294A CN202310776285.7A CN202310776285A CN116894294A CN 116894294 A CN116894294 A CN 116894294A CN 202310776285 A CN202310776285 A CN 202310776285A CN 116894294 A CN116894294 A CN 116894294A
Authority
CN
China
Prior art keywords
fluctuation
stamping die
forming margin
requirements
met
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310776285.7A
Other languages
Chinese (zh)
Inventor
孙瑞亮
李凯
赵辉
夏令国
李泽宇
杨海峰
袁安刚
张秀青
于博
寇彦方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FAW Group Corp
Faw Tooling Die Manufacturing Co Ltd
Original Assignee
FAW Group Corp
Faw Tooling Die Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAW Group Corp, Faw Tooling Die Manufacturing Co Ltd filed Critical FAW Group Corp
Priority to CN202310776285.7A priority Critical patent/CN116894294A/en
Publication of CN116894294A publication Critical patent/CN116894294A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
    • G16C60/00—Computational materials science, i.e. ICT specially adapted for investigating the physical or chemical properties of materials or phenomena associated with their design, synthesis, processing, characterisation or utilisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00—Details relating to CAD techniques
    • G06F2111/10—Numerical modelling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2113/00—Details relating to the application field
    • G06F2113/22—Moulding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

Abstract

The application belongs to the technical field of automobiles, and particularly relates to a method, a device, a terminal and a storage medium for enlarging a forming margin of a stamping die. The method comprises the following steps: step one, designing a drawing model; step two, optimizing the process and the product; step three, carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, returning to the second step; analyzing the forming margin of the stamping die, and executing a fifth step if the forming margin meets the requirement; if the requirements are not met, returning to the second step; fifthly, auditing; and step six, outputting final drawing process data. According to the application, a new drawing process design flow of the stamping die is established in a stamping process design stage, CAE analysis of fluctuation of production factors is performed aiming at a drawing process, a forming dangerous point is judged by combining an analysis result, a process is optimized, and ECR solving dangerous points are provided for the problem of products so as to achieve the purpose of enlarging the forming margin of the stamping die.

Description

Method, device, terminal and storage medium for enlarging forming margin of stamping die
Technical Field
The application belongs to the technical field of automobiles, and particularly relates to a method, a device, a terminal and a storage medium for enlarging a forming margin of a stamping die.
Background
The market competition of the automobile industry is more and more vigorous, the requirements of short period, high quality and low cost of automobile manufacturers are met, and the automobile industry is the standard for measuring the stamping die industry. For the stamping die, no design or processing and manufacturing links have the opportunity to be repeated, and no deviation appears in the links, the nodes of the whole project can be influenced, and the period of the project is prolonged. And the sufficient forming margin of the stamping die can greatly reduce the deviation caused by various factors in the debugging and production links, improve the production stability and shorten the period no matter in the debugging of die manufacturers or the mass production of automobile manufacturers, thereby improving the die quality and the stamping part product quality.
In the process of stamping die, the drawing process is the basic process for forming the basic shape of the product, the size and the formability are the most important processes, and the most important debugging and production problems of the drawing process are drawing cracking problems. The most frequently occurring phenomenon in the actual production process is that theoretical analysis formability is not problematic, and theoretical practical inconsistencies in the actual production lead to drawing to generate cracking. The analysis causes are mostly fluctuation caused by various factors in actual production, so that a certain deviation is formed between production factors and theoretical analysis, and the forming margin of the stamping die is insufficient. At present, the mold manufacturing enterprises evaluate the formability results of the drawing molds by adopting traditional disposable CAE analysis. Most of automobile manufacturers at home and abroad have own demands on the forming margin of the stamping die, and most of the demands are single specific demands such as single factor verification means of removing a balance weight, changing the pressing force and the like to improve the forming margin of the stamping die, so that the technology and the method for specifically forming a system in multiple aspects are not available.
Disclosure of Invention
The application provides a method, a device, a terminal and a storage medium for enlarging the forming margin of a stamping die, which are characterized in that a new drawing process design flow of the stamping die is established in the stage of the design of the stamping process, CAE analysis of fluctuation of production factors is carried out aiming at the drawing process, forming dangerous points are judged by combining analysis results, the process is optimized, and ECR solution dangerous points are provided for the problem of products so as to achieve the purpose of enlarging the forming margin of the stamping die, and the problem of forming caused by various factors in the subsequent debugging and mass production processes is solved.
The technical scheme of the application is as follows in combination with the accompanying drawings:
in a first aspect, an embodiment of the present application provides a method for enlarging a forming margin of a stamping die, including the following steps:
step one, designing a drawing model;
step two, optimizing the process and the product;
step three, carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, returning to the second step;
analyzing the forming margin of the stamping die, and executing a fifth step if the forming margin meets the requirement; if the requirements are not met, returning to the second step;
fifthly, auditing;
and step six, outputting final drawing process data.
Further, a typical material parameter detail database of a typical workpiece is established according to the test results of the produced sheet materials with a certain number of samples, and material parameter variables are set according to the range of typical material parameter fluctuation intervals in the database; and taking the simulated parameters as input conditions to perform formability simulation, and judging whether the simulation meets the requirements.
Further, the typical material parameters include press force, friction coefficient, draw bead, plate size, gauge, tensile strength, yield strength, index of variability, plate X-direction play and plate Y-direction play.
Further, the specific setting of the typical material parameter fluctuation is as follows: fluctuation of the pressing force is set to + -10%; fluctuation of the friction coefficient was set to + -10%; the fluctuation of the draw beads is set according to the design requirement; the fluctuation of the size of the plate is set according to the design requirement; the fluctuation of the material thickness is set to +/-5%; the fluctuation of the tensile strength is set according to the fluctuation of the actual material parameters; the fluctuation of the yield strength is set according to the fluctuation of the actual material parameters; the fluctuation of each anisotropy index is set according to the actual material parameter fluctuation; the fluctuation of the X-direction play of the plate is set to be +/-2 mm; the fluctuation of the Y-direction play of the plate is set to be +/-2 mm.
And step four, setting boundary condition parameters to judge whether the formability dangerous point meets the standard.
Further, the boundary condition parameters include thinning rate and failure.
In a second aspect, an embodiment of the present application further provides a device for increasing a forming margin of a stamping die, including:
the design module is used for designing a drawing model;
the optimizing module is used for optimizing the process and the product;
the first analysis module is used for carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, continuing to optimize;
the second analysis module is used for analyzing the forming margin of the stamping die, and checking if the forming margin meets the requirement; if the requirements are not met, continuing to optimize;
the auditing module is used for auditing;
and the output module is used for outputting final drawing process data.
In a third aspect, a terminal is provided, including:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
the method according to the first aspect of the embodiment of the application is performed.
In a fourth aspect, a non-transitory computer readable storage medium is provided, which when executed by a processor of a terminal, enables the terminal to perform the method according to the first aspect of the embodiments of the application.
In a fifth aspect, an application product is provided, which when running at a terminal causes the terminal to perform the method according to the first aspect of the embodiments of the application.
The beneficial effects of the application are as follows:
1) CAE analysis is carried out based on various variable fluctuation changes in the production process, forming dangerous points of the stamping die are predicted, and a possibly broken area is judged when the die is not processed, produced and debugged;
2) According to the application, the drawing formability dangerous points are judged according to analysis, and the process is changed or the ECR optimized product is put forward in the design stage, so that the problem of targeted optimization is solved, and the formability dangerous points are eliminated. The situation that some optimization schemes cannot be implemented because the die is molded and processed in the actual production process is avoided;
3) According to the application, after analysis, prediction and judgment of the formability dangerous points and targeted optimization in the design stage, the purpose of enlarging the forming margin of the stamping die is achieved, and the phenomenon of cracking caused by that the theory reality is inconsistent due to fluctuation of various production factors after the die is processed, debugged and produced is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for increasing the forming margin of a stamping die according to the present application;
FIG. 2 is a schematic structural view of an apparatus for increasing forming margin of a stamping die according to the present application;
fig. 3 is a schematic block diagram of a terminal structure.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1
Fig. 1 is a flowchart of a method for increasing a forming margin of a stamping die according to an embodiment of the present application, where the method may be performed by an apparatus for increasing a forming margin of a stamping die according to an embodiment of the present application, and the apparatus may be implemented in software and/or hardware.
The application relates to a method for enlarging the forming margin of a stamping die, which establishes a new drawing process design flow of the stamping die in the stage of the design of the stamping process, carries out CAE analysis of fluctuation of production factors aiming at the drawing process, judges formability dangerous points by combining analysis results, optimizes the process and puts forward ECR solution dangerous points for product problems so as to achieve the aim of enlarging the forming margin of the stamping die, and solves the formability problems caused by various factors in the subsequent debugging and mass production process, and the method comprises the following steps of:
referring to fig. 1, a method for increasing forming margin of a stamping die includes the following steps:
step one, designing a drawing model;
step two, optimizing the process and the product;
step three, carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, returning to the second step;
establishing a typical material parameter detail database of a typical product according to the test results of the produced sheet material with a certain number of samples, and setting material parameter variables according to the range of typical material parameter fluctuation intervals in the database; the simulated parameters are used as input conditions to perform formability simulation, and whether the requirements are met or not is judged, specifically as shown in table 1:
table 1 analysis of parameter types and fluctuation settings
Analyzing the forming margin of the stamping die, and executing a fifth step if the forming margin meets the requirement; if the requirements are not met, returning to the second step;
for different materials, generally aluminum or steel products, different thinning and failure boundary conditions are set, and the formability dangerous point is judged according to the boundary condition standard. And carrying out process optimization on the identified formability dangerous points or providing a product ECR to optimize the product shape, and finally achieving the purpose of eliminating the formability dangerous points. The drawing process design of the stamping die is carried out according to the flow, the output drawing process data fully considers the influence of fluctuation of various variables in actual debugging production, the formability stability under various conditions is met, and the purpose of enlarging the forming margin of the stamping die is achieved, and is specifically shown in the table 2:
TABLE 2 boundary condition parameter settings
Fifthly, auditing; the auditing may be performed by software.
And step six, outputting final drawing process data.
In summary, the application establishes a new design flow of the drawing process of the stamping die, and inserts the analysis of the forming margin of the stamping die into a normal design flow by taking the analysis of the forming margin of the stamping die as an important working node, thereby achieving the purpose of improving the forming margin of the stamping die.
Example two
Referring to fig. 2, an apparatus for increasing forming margin of a stamping die includes:
the design module is used for designing a drawing model;
the optimizing module is used for optimizing the process and the product;
the first analysis module is used for carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, continuing to optimize;
the second analysis module is used for analyzing the forming margin of the stamping die, and checking if the forming margin meets the requirement; if the requirements are not met, continuing to optimize;
the auditing module is used for auditing;
and the output module is used for outputting final drawing process data.
Example III
Fig. 3 is a block diagram of a terminal according to an embodiment of the present application, and the terminal may be a terminal according to the above embodiment. The terminal may be a portable mobile terminal such as: smart phone, tablet computer. Terminals may also be referred to by other names, user equipment, portable terminals, etc.
Generally, the terminal includes: a processor 301 and a memory 302.
Processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 301 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 301 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 301 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
Memory 302 may include one or more computer-readable storage media, which may be tangible and non-transitory. Memory 302 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 302 is used to store at least one instruction for execution by processor 301 to implement a method of increasing a press die forming margin provided in the present application.
In some embodiments, the terminal may further optionally include: a peripheral interface 303, and at least one peripheral. Specifically, the peripheral device includes: at least one of radio frequency circuitry 304, touch screen 305, camera 306, audio circuitry 307, positioning component 308, and power supply 309.
The peripheral interface 303 may be used to connect at least one Input/Output (I/O) related peripheral to the processor 301 and the memory 302. In some embodiments, processor 301, memory 302, and peripheral interface 303 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 301, the memory 302, and the peripheral interface 303 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 304 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuitry 304 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 304 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 304 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 304 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuitry 304 may also include NFC (Near Field Communication ) related circuitry, which is not limiting of the application.
The touch display screen 305 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. The touch screen 305 also has the ability to collect touch signals at or above the surface of the touch screen 305. The touch signal may be input as a control signal to the processor 301 for processing. The touch screen 305 is used to provide virtual buttons and/or virtual keyboards, also known as soft buttons and/or soft keyboards. In some embodiments, the touch display 305 may be one, providing a front panel of the terminal; in other embodiments, the touch display screen 305 may be at least two, respectively disposed on different surfaces of the terminal or in a folded design; in still other embodiments, the touch display 305 may be a flexible display disposed on a curved surface or a folded surface of the terminal. Even more, the touch display screen 305 may be arranged in an irregular pattern that is not rectangular, i.e., a shaped screen. The touch display 305 may be made of LCD (Liquid Crystal Display ), OLED (Organic Light-Emitting Diode) or other materials.
The camera assembly 306 is used to capture images or video. Optionally, the camera assembly 306 includes a front camera and a rear camera. In general, a front camera is used for realizing video call or self-photographing, and a rear camera is used for realizing photographing of pictures or videos. In some embodiments, the number of the rear cameras is at least two, and the rear cameras are any one of a main camera, a depth camera and a wide-angle camera, so as to realize fusion of the main camera and the depth camera to realize a background blurring function, and fusion of the main camera and the wide-angle camera to realize a panoramic shooting function and a Virtual Reality (VR) shooting function. In some embodiments, camera assembly 306 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
The audio circuit 307 is used to provide an audio interface between the user and the terminal. The audio circuit 307 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 301 for processing, or inputting the electric signals to the radio frequency circuit 304 for voice communication. For the purpose of stereo acquisition or noise reduction, a plurality of microphones can be respectively arranged at different parts of the terminal. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 301 or the radio frequency circuit 304 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 307 may also include a headphone jack.
The location component 308 is used to locate the current geographic location of the terminal to enable navigation or LBS (Location Based Service, location-based services). The positioning component 308 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
The power supply 309 is used to power the various components in the terminal. The power source 309 may be alternating current, direct current, disposable or rechargeable. When the power source 309 comprises a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
Those skilled in the art will appreciate that the structure shown in fig. 3 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or may employ a different arrangement of components.
Example IV
In an exemplary embodiment, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of increasing a forming margin of a press die as provided by all inventive embodiments of the present application.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Example five
In an exemplary embodiment, an application program product is also provided that includes one or more instructions executable by the processor 301 of the apparatus to perform a method of increasing a press die forming margin as described above.
Although embodiments of the present application have been disclosed above, they are not limited to the use listed in the description and modes of implementation. It can be applied to various fields suitable for the present application. Additional modifications will readily occur to those skilled in the art. Therefore, the application is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (9)

1. A method for increasing the forming margin of a stamping die, comprising the steps of:
step one, designing a drawing model;
step two, optimizing the process and the product;
step three, carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, returning to the second step;
analyzing the forming margin of the stamping die, and executing a fifth step if the forming margin meets the requirement; if the requirements are not met, returning to the second step;
fifthly, auditing;
and step six, outputting final drawing process data.
2. The method for enlarging the forming margin of a stamping die according to claim 1, wherein the third step is to build a typical material parameter detail database of a typical product through the test results of the produced sheet material with a certain number of samples, and set material parameter variables according to the fluctuation range of typical material parameters in the database; and taking the simulated parameters as input conditions to perform formability simulation, and judging whether the simulation meets the requirements.
3. The method of claim 1, wherein the typical material parameters include press force, coefficient of friction, draw bead, sheet size, gauge, tensile strength, yield strength, index of variability, sheet X-direction play, and sheet Y-direction play.
4. A method for enlarging a forming margin of a stamping die according to claim 3, wherein the typical material parameter fluctuation is specifically set as follows: fluctuation of the pressing force is set to + -10%; fluctuation of the friction coefficient was set to + -10%; the fluctuation of the draw beads is set according to the design requirement; the fluctuation of the size of the plate is set according to the design requirement; the fluctuation of the material thickness is set to +/-5%; the fluctuation of the tensile strength is set according to the fluctuation of the actual material parameters; the fluctuation of the yield strength is set according to the fluctuation of the actual material parameters; the fluctuation of each anisotropy index is set according to the actual material parameter fluctuation; the fluctuation of the X-direction play of the plate is set to be +/-2 mm; the fluctuation of the Y-direction play of the plate is set to be +/-2 mm.
5. The method for increasing forming margin of stamping die according to claim 1, wherein the fourth step is to set a boundary condition parameter to determine whether the forming dangerous point meets the standard.
6. A method of increasing a forming margin of a stamping die as defined in claim 1, wherein the boundary condition parameters include a thinning rate and failure.
7. A device for increasing a forming margin of a stamping die, comprising:
the design module is used for designing a drawing model;
the optimizing module is used for optimizing the process and the product;
the first analysis module is used for carrying out simulation analysis on the drawing formability; if the requirements are met, executing the fourth step; if the requirements are not met, continuing to optimize;
the second analysis module is used for analyzing the forming margin of the stamping die, and checking if the forming margin meets the requirement; if the requirements are not met, continuing to optimize;
the auditing module is used for auditing;
and the output module is used for outputting final drawing process data.
8. A terminal, comprising:
one or more processors;
a memory for storing the one or more processor-executable instructions;
wherein the one or more processors are configured to:
a method of increasing a forming margin of a press die as claimed in any one of claims 1 to 6 is performed.
9. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform a method of increasing a press die forming margin as claimed in any one of claims 1 to 6.
CN202310776285.7A 2023-06-28 2023-06-28 Method, device, terminal and storage medium for enlarging forming margin of stamping die Pending CN116894294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310776285.7A CN116894294A (en) 2023-06-28 2023-06-28 Method, device, terminal and storage medium for enlarging forming margin of stamping die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310776285.7A CN116894294A (en) 2023-06-28 2023-06-28 Method, device, terminal and storage medium for enlarging forming margin of stamping die

Publications (1)

Publication Number Publication Date
CN116894294A true CN116894294A (en) 2023-10-17

Family

ID=88311512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310776285.7A Pending CN116894294A (en) 2023-06-28 2023-06-28 Method, device, terminal and storage medium for enlarging forming margin of stamping die

Country Status (1)

Country Link
CN (1) CN116894294A (en)

Similar Documents

Publication Publication Date Title
US11907604B2 (en) Screen mirroring display method using layer orders of target controls and electronic device
US11880628B2 (en) Screen mirroring display method and electronic device
CN110471858B (en) Application program testing method, device and storage medium
WO2021114847A1 (en) Internet calling method and apparatus, computer device, and storage medium
CN114701394A (en) Battery replacement cloud edge cooperative control method and device, terminal and storage medium
CN116894294A (en) Method, device, terminal and storage medium for enlarging forming margin of stamping die
CN116384342A (en) Semantic conversion method, semantic conversion device, semantic conversion apparatus, semantic conversion storage medium, and semantic conversion computer program
CN115081101A (en) Mechanical impact simulation method and device for vehicle-mounted display screen, terminal and storage medium
CN115033978A (en) Simulation analysis method, device, terminal and storage medium for transient strength of oil tank partition
CN115221619A (en) Axial adjusting shim thickness determining method and device, terminal and storage medium
CN114942150A (en) Steering wheel corner sensor CAN bus message simulation method and device
CN112860365A (en) Content display method and device, electronic equipment and readable storage medium
CN115921707A (en) Method for judging visual degree of sliding line of automobile outer covering part
CN114910792A (en) Power battery charging depth evaluation device, power battery charging depth evaluation terminal and storage medium
CN115964356A (en) Method, system, terminal and storage medium for establishing part database
CN117034681A (en) Method, device, terminal and storage medium for analyzing dent resistance of automobile body outer panel
CN113408809B (en) Design scheme evaluation method and device for automobile and computer storage medium
CN117216865A (en) Subframe modal calculation finite element modeling method, subframe modal calculation finite element modeling device, terminal and storage medium
CN115220699A (en) Software architecture generation method, device, terminal and storage medium based on model development
CN113886959A (en) Clamping structure rigidity simulation modeling method, system, terminal and storage medium
CN116562081A (en) Method and device for designing strength of car lamp bracket by considering influence of injection molding factors
CN116562084A (en) Design method and device for controlling assembly clearance of lower decorative plate of vehicle door
CN116703305A (en) Overseas KD (KD) export vehicle type KDBOM generation method, device, equipment and medium
CN116579071A (en) Multi-objective optimization method, device, terminal and storage medium for integrated die-casting floor
CN115222659A (en) Part size evaluation method and device, terminal and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination