CN104014692A - Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis - Google Patents
Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis Download PDFInfo
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- CN104014692A CN104014692A CN201410222348.5A CN201410222348A CN104014692A CN 104014692 A CN104014692 A CN 104014692A CN 201410222348 A CN201410222348 A CN 201410222348A CN 104014692 A CN104014692 A CN 104014692A
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Abstract
The invention discloses a process for solving the wrinkling process of a metal plate with the flanging edge based on finite element analysis. The process includes the following working procedures that firstly, a main part of the metal plate is pre-stretched; secondly, flanging is conducted on the pre-stretched metal plate acquired from the first working procedure, and flanging is conducted on the middle of the metal plate and then on the two sides of the metal plate; thirdly, convex hulls on the side wall are shaped in place through a cam shaping mechanism; fourthly and fifthly, square cut, square impact and cam trimming are conducted on through holes and grooves in the metal plate; sixthly, adjustment bounce is conducted on the side wall through the cam shaping mechanism; simulation analysis is conducted on the working procedures through autoform. By the adoption of the mode, the wrinkling and piling problems of the metal plate with the flanging edge and large stretching depth can be completely solved, production efficiency is improved, the quality of the metal plate is improved, and product cost is reduced.
Description
Technical field
The present invention relates to car panel die and become type analysis and engineering method design field, particularly relate to a kind of metal plate part creping that solves flanged limit based on finite element analysis.
Background technology
Automobile panel is wrinkling, folded material, cracking, attenuation, bounce-back is all the problem often running in current die manufacture, if there are above several situations to occur, metal plate part just can be judged defective, and find that in advance these problems are depended design alone and on-the-spot die trial experience is difficult to accomplish, we just need to be according to CAE(Computer Aided Engineering like this) technology carries out moulding analysis mode, find ahead of time the potential risk in these forming processes, these risks are dropped to minimum and just stop these problems in the stage of designing and developing.Prevent the drawing crack of metal plate part and wrinkling be two principal elements that guarantee metal plate part precision and quality, wrinkling for preventing metal plate part, we adopt the mode of drawing and moulding conventionally, and increase technique bead, strengthen the measures such as pressure-pad-force, and these measures are to make material attenuation just, be tending towards the main cause of drawing crack.
Conventionally, circumferential compressive force is maximum at the outward flange of flange, therefore wrinkling, also first in outermost edge, occurs, metal plate part too deeply also can cause flange wrinkling, prevents like this and solve wrinkling some special project organization and moulding process of just need to adopting.Push down flange moulding process metal plate part wrinkling we often can run into; sometimes according to increasing pressure or changing flange face, can solve; but due to material parameter; the reasons such as thickness of slab, wrinkling specific mould structure and the Special moulding process of not adopting of metal plate part is (this can be verified according to CAE and on-the-spot die trial) that cannot eliminate sometimes.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of metal plate part creping that solves flanged limit based on finite element analysis, can thoroughly remove the wrinkling folded material problem that there is negative angle metal plate part sidewall flanged limit that 250mm is high and two sides, stock utilization is high, and the quality that has improved production efficiency and metal plate part, has reduced product cost.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of metal plate part creping that solves flanged limit based on finite element analysis is provided, comprises the steps:
The main part of the first operation, prestretched metal plate part;
The second operation, the metal plate part that the first operation prestretching is stretched out carry out flange, and described flange adopts the mode of first intermediate and then both sides;
The 3rd operation, with cam reshaping device, the convex closure shaping on sidewall is put in place;
The 4th operation and the 5th operation are carried out tangent, square impact, cam trimming by the through hole on metal plate part and groove;
The 6th operation, with cam reshaping device oppose side wall, adjust bounce-back.
Preferably, with finite element analysis software, carry out sunykatuib analysis.
Preferably, described finite element analysis software comprises following setting:
One, the metal plate part the first operation being stretched, main part stretches half highly, and ring mould height and metal plate part upper surface minimum point maintain an equal level, and counterdie is made two core rods;
Two, patrix flange piece down turns over sub-fraction (first turn over centre) by metal plate part, and counterdie and patrix height are inconsistent, and counterdie is escaped material, and the metal plate part sidewall of turning down is in free state shape;
Three, the mode of the two moving cam shapings of employing by the convex closure shape shaping on metal plate part sidewall out;
Four, the through hole on metal plate part and groove are carried out to tangent, square impact, cam trimming, the trim lines of finishing metal plate part surrounding;
Five, with the shaping of cam reshaping device oppose side wall, put in place, oppose side wall is adjusted bounce-back.
Preferably, described cam reshaping device adopts two moving structures.
Preferably, described finite element analysis software is autoform, and 3D engineering method figure adopts CATIA software.
The invention has the beneficial effects as follows: the present invention adopts autoform analysis software, to the high flanged limit of 250mm and two sides, there is the moulding process of negative angle metal plate part to carry out sunykatuib analysis, and when flange, adopt the mode of first intermediate and then both sides, solved the problem of the wrinkling folded material of metal plate part sidewall, stock utilization is high, has improved the quality of production efficiency and metal plate part, has reduced cost of goods manufactured.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view that solves metal plate part creping one preferred embodiment on flanged limit based on finite element analysis of the present invention;
Fig. 2 be shown in the first working procedure states structural representation;
Fig. 3 be shown in the second working procedure states structural representation;
Fig. 4 be shown in the 3rd working procedure states structural representation;
Fig. 5 be shown in the four or five working procedure states structural representation;
In accompanying drawing, the mark of each parts is as follows: 1, main body, 2, sidewall, 3, convex closure, 4, groove.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1 to Fig. 5, the embodiment of the present invention comprises:
A metal plate part creping that solves flanged limit based on finite element analysis, comprises the steps:
The main part of the first operation, prestretched metal plate part;
The second operation, the metal plate part that the first operation prestretching is stretched out carry out flange, and described flange adopts the mode of first intermediate and then both sides;
The 3rd operation, with cam reshaping device, the convex closure shaping on sidewall is put in place;
The 4th operation and the 5th operation are carried out tangent, square impact, cam trimming by the through hole on metal plate part and groove;
The 6th operation, with cam reshaping device oppose side wall, adjust bounce-back and obtain final finished.
Further, with finite element analysis software, carry out sunykatuib analysis.
Further, described finite element analysis software comprises following setting:
One, the metal plate part the first operation being stretched, main part stretches half highly, and ring mould height and metal plate part upper surface minimum point maintain an equal level, and counterdie is made two core rods (as Fig. 2);
Two, patrix flange piece down turns over sub-fraction (first turn over centre) by metal plate part, counterdie and patrix height are inconsistent, and counterdie is escaped material, and the metal plate part sidewall of turning down is in free state shape (as Fig. 3), reduced mould under turn over stroke, and improved in the middle of wrinkling;
Three, the mode that adopts two moving cam shapings is by the convex closure shape shaping on metal plate part sidewall out (as Fig. 4);
Four, the through hole on metal plate part and groove are carried out to tangent, square impact, cam trimming, the trim lines (as Fig. 5) of finishing metal plate part surrounding;
Five, with the shaping of cam reshaping device oppose side wall, put in place, oppose side wall is adjusted bounce-back (as Fig. 1).
Further, described cam reshaping device adopts two moving structures, and cam shaping not only can by the convex closure shape shaping of metal plate part both sides out can also prevent that metal plate part is stuck in mould, facilitates metal plate part to take out.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. based on finite element analysis, solve the metal plate part creping on flanged limit, it is characterized in that, comprise the steps:
The main part of the first operation, prestretched metal plate part;
The second operation, the metal plate part that the first operation prestretching is stretched out carry out flange, and described flange adopts the mode of first intermediate and then both sides;
The 3rd operation, with cam reshaping device, the convex closure shaping on sidewall is put in place;
The 4th operation and the 5th operation are carried out tangent, square impact, cam trimming by the through hole on metal plate part and groove;
The 6th operation, with cam reshaping device oppose side wall, adjust bounce-back.
2. a kind of metal plate part creping that solves flanged limit based on finite element analysis according to claim 1, is characterized in that, with finite element analysis software, carries out sunykatuib analysis.
3. a kind of metal plate part creping that solves flanged limit based on finite element analysis according to claim 1, is characterized in that, described finite element analysis software comprises following setting:
One, the metal plate part the first operation being stretched, main part stretches half highly, and ring mould height and metal plate part upper surface minimum point maintain an equal level, and counterdie is made two core rods;
Two, patrix flange piece down turns over sub-fraction (first turn over centre) by metal plate part, and counterdie and patrix height are inconsistent, and counterdie is escaped material, and the metal plate part sidewall of turning down is in free state shape;
Three, the mode of the two moving cam shapings of employing by the convex closure shape shaping on metal plate part sidewall out;
Four, the through hole on metal plate part and groove are carried out to tangent, square impact, cam trimming, the trim lines of finishing metal plate part surrounding;
Five, with the shaping of cam reshaping device oppose side wall, put in place, oppose side wall is adjusted bounce-back.
4. a kind of metal plate part creping that solves flanged limit based on finite element analysis according to claim 3, is characterized in that, described cam reshaping device adopts two moving structures.
5. a kind of metal plate part creping that solves flanged limit based on finite element analysis according to claim 3, is characterized in that, described finite element analysis software is autoform, and 3D engineering method figure adopts CATIA software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222348.5A CN104014692B (en) | 2014-05-26 | 2014-05-26 | Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222348.5A CN104014692B (en) | 2014-05-26 | 2014-05-26 | Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis |
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| CN104014692A true CN104014692A (en) | 2014-09-03 |
| CN104014692B CN104014692B (en) | 2017-02-08 |
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| CN201410222348.5A Expired - Fee Related CN104014692B (en) | 2014-05-26 | 2014-05-26 | Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175093A (en) * | 2018-08-21 | 2019-01-11 | 安徽江淮汽车集团股份有限公司 | A kind of automobile top cover tail portion wedge angle slope wrinkle stack and cracking treatment process |
| CN110756663A (en) * | 2019-11-01 | 2020-02-07 | 浙江舜仕汽车技术有限公司 | Forming process of front end plate of automobile battery box |
| CN110756663B (en) * | 2019-11-01 | 2024-04-30 | 浙江舜仕汽车技术有限公司 | Forming process of front end plate of automobile battery box |
Citations (5)
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| JP2005144473A (en) * | 2003-11-12 | 2005-06-09 | Chubu Engineering Kk | Metal plate working device and metal plate working method |
| CN1962112A (en) * | 2005-11-11 | 2007-05-16 | 比亚迪股份有限公司 | Method for forming platy pieces with negative angle |
| US20070296249A1 (en) * | 2006-02-02 | 2007-12-27 | Honda Motor Co., Ltd. | Panel fastening method and panel member for automobile |
| CN101439377A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | Stamping processing method for related joint of vehicle side-frame outer plate and roof board |
| CN102430642A (en) * | 2011-09-19 | 2012-05-02 | 天津市津兆机电开发有限公司 | Molding process of progressive die of high temperature alloy sheet metal component with high flanging hole |
-
2014
- 2014-05-26 CN CN201410222348.5A patent/CN104014692B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005144473A (en) * | 2003-11-12 | 2005-06-09 | Chubu Engineering Kk | Metal plate working device and metal plate working method |
| CN1962112A (en) * | 2005-11-11 | 2007-05-16 | 比亚迪股份有限公司 | Method for forming platy pieces with negative angle |
| US20070296249A1 (en) * | 2006-02-02 | 2007-12-27 | Honda Motor Co., Ltd. | Panel fastening method and panel member for automobile |
| CN101439377A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | Stamping processing method for related joint of vehicle side-frame outer plate and roof board |
| CN102430642A (en) * | 2011-09-19 | 2012-05-02 | 天津市津兆机电开发有限公司 | Molding process of progressive die of high temperature alloy sheet metal component with high flanging hole |
Non-Patent Citations (2)
| Title |
|---|
| 傅乐荣等: "基于Autoform的汽车覆盖件冲压模具设计", 《江汉大学学报》 * |
| 赵海明: "发动机罩翻边后的轮廓形状偏差", 《十堰二汽科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175093A (en) * | 2018-08-21 | 2019-01-11 | 安徽江淮汽车集团股份有限公司 | A kind of automobile top cover tail portion wedge angle slope wrinkle stack and cracking treatment process |
| CN110756663A (en) * | 2019-11-01 | 2020-02-07 | 浙江舜仕汽车技术有限公司 | Forming process of front end plate of automobile battery box |
| CN110756663B (en) * | 2019-11-01 | 2024-04-30 | 浙江舜仕汽车技术有限公司 | Forming process of front end plate of automobile battery box |
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| CN104014692B (en) | 2017-02-08 |
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Effective date of registration: 20180905 Address after: 215000 Zhongshan North Road economic and Technological Development Zone, Wujiang, Suzhou, Jiangsu 1300 Patentee after: Suzhou Tongli Automotive Engineering Technology Co.,Ltd. Address before: 215122 Zhongshan North Road, Songling Town, Wujiang, Suzhou, Jiangsu 1300 Patentee before: SKD TOOLING CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170208 |