CN102024087A - Design method for interference of multilayer flat extruding container - Google Patents
Design method for interference of multilayer flat extruding container Download PDFInfo
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- CN102024087A CN102024087A CN2010106174598A CN201010617459A CN102024087A CN 102024087 A CN102024087 A CN 102024087A CN 2010106174598 A CN2010106174598 A CN 2010106174598A CN 201010617459 A CN201010617459 A CN 201010617459A CN 102024087 A CN102024087 A CN 102024087A
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Abstract
The invention discloses a design method for the interference of a multilayer flat extruding container, comprising the following steps of: inputting an initial parameter required by calculation; running a finite element modeling analysis program in an interference design system of the multilayer extruding container; running a finite element solving program, saving the calculation result, and displaying distribution maps and graphs of the stress and the deformation of a working state and an assembling state on a display screen or printing the distribution maps and the graphs; and determining an optimal interference design parameter of the extruding container. In the invention, before the finite element solving program runs, the finite element modeling analysis program first runs so that a bridge is established between the initial parameter and a solver, a user only needs to open programmed software to input an initial numerical value, and the user can preferably select the design parameters. The invention has the advantages of convenient, fast and exact operation, shorter design period and higher design level of the devices, and can provide the direct basis for the thickness and the size of each layer when designing a reasonable and durable extruding container.
Description
Technical field
The present invention relates to a kind of designing technique of pushing moulds of industrial equipment, particularly a kind of method for designing of the multilayer flat extruding cylinder magnitude of interference.
Background technology
The design of extruding moulds of industrial equipment is aluminium extrusion production with manufacturing, and particularly the gordian technique of aluminium alloy extrusions extruding production not only influences product quality, production efficiency and delivery cycle, and is one of key factor of decision production cost.
Recipient belongs to large-scale expendable part the most expensive in the compression tool.Extrusion process is the high friction process of High Temperature High Pressure, and multilayer recipient interference combined complete can effectively reduce peak stress, improves the recipient durability, saves cost.
Therefore, becoming the important parameter of compression tool design for the choose reasonable of the magnitude of interference, also is design difficulty.Be not enough to reduce synthetic tensile stress value when the magnitude of interference is too small, cross the difficulty that conference makes lining produce plastic yield and changes neck bush.In a word, shrink value is selected suitable 3-4 times of the recipient life-span raising that make, and reduces production costs greatly.
At present, the method for designing of the multilayer flat extruding cylinder magnitude of interference mainly contains two kinds, and a kind of is that Theoretical Calculation is determined parameter in conjunction with the personal experience, carries out the strength check method again; Another kind is to use the finite element software sunykatuib analysis.
Theory method master is a thickness of determining each layer earlier according to traditional experimental formula, calculates the minimum interference amount by extruding force again, carries out strength check by formula.This method advantage is directly perceived, directly according to the experience of formula in conjunction with the deviser, sets the interference parameter.Shortcoming be that deviser's experience is relevant, uncertain factor is big, causes damage easily.
Finite Element (Finite Element Method) is the discretize theory of computation method that occurred a kind of modern age.It is applied in the computer-aided engineering (Computer Aided Engineening) of design department, and result of calculation is accurate, comprehensively.Shortcoming is when improving physical dimension or condition of work if desired, and computing machine all will be changed original computation model, analyzes thereby set up a new model.Cause the time of designs consume long, wasted a large amount of duplication of labour power and design cycle.And the improvement of physical dimension has blindness and incoherence.So need a kind of can the preservation on original analysis result basis, to the computing method of structural change realization parametrization design, promptly realize the process programming of modeling again, reduce computing time.
Summary of the invention
Be to solve the problems referred to above that prior art exists, the present invention will design a kind of method for designing of can the preferred structure parameter, reducing double counting, saving the multilayer flat extruding cylinder magnitude of interference of design time.
To achieve these goals, technical scheme of the present invention is as follows: a kind of method for designing of the multilayer flat extruding cylinder magnitude of interference may further comprise the steps:
Required initial parameter is calculated in A, input:
Start multilayer recipient magnitude of interference design system, required initial parameter is calculated in input then, and described initial parameter comprises the interior hole dimension of inside/outside diameter size, recipient and length, recipient internal and external temperature, recipient layers of material and the extruding force of each layer;
Modeling Analysis program in B, the operation multilayer recipient magnitude of interference design system:
B1, according to the original dimension of input, adjust the size of each layer of recipient;
B2, according to the original material of input, read the material data of each layer recipient;
B3, according to the initial compression power of input, set the interior pressure of recipient inwall duty;
B4, operating mode is set, first operating mode is the interference assembling, and second operating mode is for adding interior pressure;
B5, improve running parameter, comprise that mainly the calculating of Thermal-mechanical Coupling compute type, the finite element softwares such as result of calculation type of wanting is set;
C, operation finite element solving program are preserved result of calculation, and are presented at the stress of duty and confined state and deformation distribution figure and curve map on the display screen or print;
D, definite best recipient magnitude of interference design parameter: according to result of calculation, reset calculating parameter, promptly from result of calculation, optimize the optimal magnitude of interference design parameter of a kind of stress value.
Compared with prior art, the present invention has following beneficial effect:
1, since the present invention before carrying out finite element solving, moved a modeling Analysis program earlier, between initial parameter and solver, set up a bridge, therefore, as long as the user opens the software input initial value of finishing, just can the decision design parameter, be easy to use, fast, accurately.Shortened the design cycle, improved the design level of equipment, for each layer thickness size of durable recipient reasonable in design provides direct foundation.
2, programming is all adopted in the utilization of the present invention operation of finding the solution software, finishes automatically.Can check each layer of recipient mechanics condition after finishing, the contrast theoretical analysis result, the deviser according to former analysis result, accomplishes evidence-based, progressively preferred when setting new argument.
Description of drawings
5 in the total accompanying drawing of the present invention, wherein:
Fig. 1 is the FB(flow block) of the method for designing of the multilayer flat extruding cylinder magnitude of interference.
Fig. 2 is the structural representation of multilayer flat extruding cylinder.
Fig. 3 is a multilayer flat extruding cylinder parameter inputting interface.
Fig. 4 is a multilayer flat extruding cylinder stress result distribution display interface.
Fig. 5 is a multilayer flat extruding cylinder radial stress result curve display interface.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With four layers of flat extruding cylinder, it is example that the 160MN nominal pressure is born in inside, concrete using method is described, at first this suitable novel multilayer flat extruding cylinder magnitude of interference parametrization of operation is calculated and analysis software ..exe, computer will show interface shown in Figure 2, click " entering calculating " button, enter into flat extruding cylinder parameter inputting interface shown in Figure 3.
The long 700mm in hole of input flat extruding cylinder, aperture 300mm, ground floor external diameter 1300mm, ground floor recipient material 4Cr5MoV1Si, second layer internal diameter of the container 1298.18mm, second layer recipient external diameter 1700mm, second layer recipient material 4Cr5MoV1Si, the 3rd layer of internal diameter of the container 1697.62mm, the 3rd layer of recipient external diameter 2200mm, the 3rd layer of recipient material 4Cr5MoV1Si, the 4th layer of internal diameter of the container 2196.92mm, the 4th layer of recipient external diameter 2780mm, the 4th layer of recipient material 4Cr5MoV1Si, 300 ℃ of internal temperatures, 500 ℃ of external temperatures, 16000 tons of nominal pressures.Click to move to enter and find the solution analysis.
Click " erection stress " and stress and the deformation pattern that Fig. 4 is a duty after calculating is finished occur.
" " Fig. 5 occurs is the stress curve of major axis duty after calculating is finished to major axis erection stress curve in click.Preservation result of calculation withdraws from.
According to result of calculation, reset calculating parameter, promptly from result of calculation, optimize the optimal magnitude of interference design parameter of a kind of stress value.
Claims (1)
1. the method for designing of a multilayer flat extruding cylinder magnitude of interference is characterized in that: may further comprise the steps:
Required initial parameter is calculated in A, input:
Start multilayer recipient magnitude of interference design system, required initial parameter is calculated in input then, and described initial parameter comprises the interior hole dimension of inside/outside diameter size, recipient and length, recipient internal and external temperature, recipient layers of material and the extruding force of each layer;
Modeling Analysis program in B, the operation multilayer recipient magnitude of interference design system:
B1, according to the original dimension of input, adjust the size of each layer of recipient;
B2, according to the original material of input, read the material data of each layer recipient;
B3, according to the initial compression power of input, set the interior pressure of recipient inwall duty;
B4, operating mode is set, first operating mode is the interference assembling, and second operating mode is for adding interior pressure;
B5, improve running parameter, comprise that mainly the calculating of Thermal-mechanical Coupling compute type, the finite element softwares such as result of calculation type of wanting is set;
C, operation finite element solving program are preserved result of calculation, and are presented at the stress of duty and confined state and deformation distribution figure and curve map on the display screen or print;
D, definite best recipient magnitude of interference design parameter: according to result of calculation, reset calculating parameter, promptly from result of calculation, optimize the optimal magnitude of interference design parameter of a kind of stress value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106174598A CN102024087A (en) | 2010-12-30 | 2010-12-30 | Design method for interference of multilayer flat extruding container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106174598A CN102024087A (en) | 2010-12-30 | 2010-12-30 | Design method for interference of multilayer flat extruding container |
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| CN102024087A true CN102024087A (en) | 2011-04-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440385A (en) * | 2013-09-06 | 2013-12-11 | 湘潭电机股份有限公司 | Confirmation method of interference fit press-in force |
| CN103433702A (en) * | 2013-08-15 | 2013-12-11 | 中国兵器工业第五二研究所 | Manufacturing method for ultrahigh pressure cylinder body of hydraulic squeezing test equipment |
| CN106529106A (en) * | 2017-01-09 | 2017-03-22 | 郑州云海信息技术有限公司 | Hole building method and device as well as PCB |
| CN115795706A (en) * | 2022-10-26 | 2023-03-14 | 中国重型机械研究院股份公司 | Calculation method for prestress of large flat extrusion cylinder |
| WO2024108609A1 (en) * | 2022-11-22 | 2024-05-30 | 上海电机学院 | Special-shaped part machining mold, design method, and assembly method |
-
2010
- 2010-12-30 CN CN2010106174598A patent/CN102024087A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433702A (en) * | 2013-08-15 | 2013-12-11 | 中国兵器工业第五二研究所 | Manufacturing method for ultrahigh pressure cylinder body of hydraulic squeezing test equipment |
| CN103440385A (en) * | 2013-09-06 | 2013-12-11 | 湘潭电机股份有限公司 | Confirmation method of interference fit press-in force |
| CN106529106A (en) * | 2017-01-09 | 2017-03-22 | 郑州云海信息技术有限公司 | Hole building method and device as well as PCB |
| CN106529106B (en) * | 2017-01-09 | 2019-09-06 | 郑州云海信息技术有限公司 | One kind building hole method, apparatus and a kind of PCB |
| CN115795706A (en) * | 2022-10-26 | 2023-03-14 | 中国重型机械研究院股份公司 | Calculation method for prestress of large flat extrusion cylinder |
| WO2024108609A1 (en) * | 2022-11-22 | 2024-05-30 | 上海电机学院 | Special-shaped part machining mold, design method, and assembly method |
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Application publication date: 20110420 |