CN104014692B - 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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- CN104014692B CN104014692B CN201410222348.5A CN201410222348A CN104014692B CN 104014692 B CN104014692 B CN 104014692B CN 201410222348 A CN201410222348 A CN 201410222348A CN 104014692 B CN104014692 B CN 104014692B
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- metal plate
- plate part
- cam
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- flange
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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 forming analysis and engineering method design field, more particularly to one kind is based on limited
Meta-analysis solve metal plate part creping with flange.
Background technology
Automobile panel is wrinkling, stack, cracking, thinning, and bounce-back is all asking of being frequently encountered by current die manufacture
Topic, occurs if there are above several situations, metal plate part it is determined that unqualified, and find in advance these problems depend alone design and
Live die trial experience is difficult to accomplish, and so we are accomplished by according to CAE (Computer Aided Engineering) skill
Art, to carry out forming analysis simulation, finds the potential risk in these forming processes ahead of time, these risks are preferably minimized and
Stage of designing and developing just prevents these problems.Prevent metal plate part drawing crack and wrinkling be to ensure that two of metal plate part precision and quality main because
Element, for preventing metal plate part wrinkling, we are generally by the way of drawing and moulding, and increase technique bead, increase pressure-pad-force etc.
Measure, and these measures precisely make material thinning, tend to the main cause of drawing crack.
Generally, circumferential compressive force is maximum in the outward flange of flange, thus wrinkling also occur in outermost edge first, metal plate part is too deep
Will also result in that flange is wrinkling, so prevent and solve wrinkling to be accomplished by the design structure special using some and moulding process.Pressure
Live flange moulding process metal plate part wrinkling we be frequently encountered, sometimes according to increase pressure or change flange face can solve, but
Due to material parameters, the reason such as thickness of slab, the wrinkling of metal plate part is not no using specific mould structure and Special moulding process sometimes
(this can be according to CAE and live die trial checking) that method eliminates.
Content of the invention
The invention mainly solves the technical problem of providing a kind of metal plate part with flange based on finite element analyses solution to rise
Wrinkle technique, can thoroughly remove the high with flange and two sides of 250mm has the wrinkling stack problem of negative angle metal plate part side wall, material
Utilization rate is high, and improves production efficiency and the quality of metal plate part, reduces product cost.
For solving above-mentioned technical problem, one aspect of the present invention is：One kind is provided to be based on finite element analyses
Solve metal plate part creping with flange, comprise the steps：
First operation, the main part of pre-stretching metal plate part；
Second operation, the metal plate part stretching out the first operation prestretching carry out flange, and described flange adopts first intermediate and then both sides
Mode；
3rd operation, with cam reshaping device, the convex closure shaping on the wall of side is put in place；
Through hole on metal plate part and groove are carried out tangent, square impact, cam trimming by the 4th operation and the 5th operation；
6th operation, with cam reshaping device offside wall be adjusted rebound.
Preferably, it is simulated analysis with finite element analysis software.
Preferably, described finite element analysis software includes arranging as follows：
First, by the metal plate part of the first operation pre-stretching, main part stretches a half height, and ring mould height is with metal plate part upper surface
Low spot maintains an equal level, and lower mould makes two core rods；
2nd, metal plate part is down turned over sub-fraction by upper mould flange block, and wherein, centre is first turned over, and lower mould is highly inconsistent with upper mould,
Lower mould escapes to expect, the metal plate part side-walls turned down are in free state shape；
3rd, by the way of double moving cam shapings by the convex hull shape shaping on the wall of metal plate part side out；
4th, the through hole on metal plate part and groove are carried out with tangent, square impact, cam trimming, the trim lines of finishing metal plate part surrounding；
5th, put in place with cam reshaping device offside wall shaping, offside wall is adjusted rebounding.
Preferably, described cam reshaping device is using double dynamic 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, high to 250mm with flange and two
The moulding process that there is negative angle metal plate part side is simulated analysis, and in flange, by the way of first intermediate and then both sides, solves
The problem of metal plate part side wall wrinkling stack, stock utilization is high, improves production efficiency and the quality of metal plate part, reduces product system
Cause this.
Brief description
Fig. 1 is that the present invention is a kind of solves metal plate part creping one preferred embodiment with flange based on finite element analyses
Perspective view；
Fig. 2 is shown first working procedure states structural representation；
Fig. 3 is shown second working procedure states structural representation；
Fig. 4 is shown 3rd working procedure states structural representation；
Fig. 5 is shown 4th the 5th working procedure states structural representation；
In accompanying drawing, the labelling of each part is as follows：1st, main body, 2, side wall, 3, convex closure, 4, groove.
Specific embodiment
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clearly defining.
Refer to Fig. 1 to Fig. 5, the embodiment of the present invention includes：
A kind of metal plate part creping with flange based on finite element analyses solution, comprises the steps：
First operation, the main part of pre-stretching metal plate part；
Second operation, the metal plate part stretching out the first operation prestretching carry out flange, and described flange adopts first intermediate and then both sides
Mode；
3rd operation, with cam reshaping device, the convex closure shaping on the wall of side is put in place；
Through hole on metal plate part and groove are carried out tangent, square impact, cam trimming by the 4th operation and the 5th operation；
6th operation, it is adjusted bounce-back with cam reshaping device offside wall and obtains final finished.
Further, it is simulated analysis with finite element analysis software.
Further, described finite element analysis software includes arranging as follows：
First, by the metal plate part of the first operation pre-stretching, main part stretches a half height, and ring mould height is with metal plate part upper surface
Low spot maintains an equal level, and lower mould makes two core rods (as Fig. 2)；
2nd, metal plate part is down turned over sub-fraction by upper mould flange block, and wherein, centre is first turned over, and lower mould is highly inconsistent with upper mould,
Lower mould escapes to expect, the metal plate part side-walls turned down, in free state shape (as Fig. 3), decrease and turn over stroke under mould, and change
Wrinkling in the middle of being apt to；
3rd, by the way of double moving cam shapings by the convex hull shape shaping on the wall of metal plate part side out (as Fig. 4)；
4th, the through hole on metal plate part and groove are carried out with tangent, square impact, cam trimming, the trim lines of finishing metal plate part surrounding are (as schemed
5)；
5th, put in place with cam reshaping device offside wall shaping, offside wall is adjusted rebounding (as Fig. 1).
Further, using double dynamic structures, cam shaping not only can be convex by metal plate part both sides for described cam reshaping device
Bag shape shaping out moreover it is possible to prevent metal plate part card in a mold, facilitates metal plate part to take out.
The foregoing is only embodiments of the invention, not thereby limit the present invention the scope of the claims, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of metal plate part creping with flange based on finite element analyses solution, comprises the steps：
First operation, the main part of pre-stretching metal plate part；
Second operation, the metal plate part stretching out the first operation prestretching carry out flange, and described flange is by the way of first intermediate and then both sides；
3rd operation, with cam reshaping device, the convex closure shaping on the wall of side is put in place；
Through hole on metal plate part and groove are carried out tangent, square impact, cam trimming by the 4th operation and the 5th operation；
6th operation, with cam reshaping device offside wall be adjusted rebound；
It is characterized in that, it is simulated analysis with finite element analysis software, described finite element analysis software includes arranging as follows：
First, by the metal plate part of the first operation pre-stretching, main part stretches a half height, ring mould height and metal plate part upper surface minimum point
Maintain an equal level, lower mould makes two core rods；
2nd, metal plate part is down turned over sub-fraction by upper mould flange block, and wherein, centre is first turned over, and lower mould is highly inconsistent with upper mould, lower mould
Escape to expect, the metal plate part side-walls turned down are in free state shape；
3rd, by the way of double moving cam shapings by the convex hull shape shaping on the wall of metal plate part side out；
4th, the through hole on metal plate part and groove are carried out with tangent, square impact, cam trimming, the trim lines of finishing metal plate part surrounding；
5th, put in place with cam reshaping device offside wall shaping, offside wall is adjusted rebounding.
2. a kind of metal plate part creping with flange based on finite element analyses solution according to claim 1, its feature
It is, described cam reshaping device is using double dynamic structures.
3. a kind of metal plate part creping with flange based on finite element analyses solution according to claim 1, its feature
It is, described finite element analysis software is autoform, 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104014692A CN104014692A (en) | 2014-09-03 |
| CN104014692B true CN104014692B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175093B (en) * | 2018-08-21 | 2019-08-06 | 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 |
| 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 (3)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486730C (en) * | 2005-11-11 | 2009-05-13 | 比亚迪股份有限公司 | Method for forming platy pieces with negative angle |
| US7846555B2 (en) * | 2006-02-02 | 2010-12-07 | Honda Motor Co., Ltd. | Panel fastening method and panel member for automobile |
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2014
- 2014-05-26 CN CN201410222348.5A patent/CN104014692B/en not_active Expired - Fee Related
Patent Citations (3)
| 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 |
| 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 |
|---|
| 发动机罩翻边后的轮廓形状偏差;赵海明;《十堰二汽科技》;19790228(第2期);正文41-46页，图1-8 * |
| 基于Autoform的汽车覆盖件冲压模具设计;傅乐荣等;《江汉大学学报》;20110630;第39卷(第2期);正文43-46页，图1-7 * |
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| CN104014692A (en) | 2014-09-03 |
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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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Granted publication date: 20170208 |