CN105088230B - Reduce the process of helicopter milling sheet metal component stress deformation - Google Patents
Reduce the process of helicopter milling sheet metal component stress deformation Download PDFInfo
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- CN105088230B CN105088230B CN201410188671.5A CN201410188671A CN105088230B CN 105088230 B CN105088230 B CN 105088230B CN 201410188671 A CN201410188671 A CN 201410188671A CN 105088230 B CN105088230 B CN 105088230B
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Abstract
The invention belongs to flat board sheet metal part milling forming technology category, is related to and provides a kind of forming process for reducing milling part stress deformation.Reduce the process of helicopter milling sheet metal component stress deformation, it is characterized in that, this method includes：When selecting raw material, using the relatively small plate of internal stress：The T3 ASNA3482 of pretensioning plate 2024；Two-sided milling is uniformly taken in milling, while discharges stress.This method reduces original forming process middle plateform milling part reel or the seriously forming defects such as uneven, improves the quality of part, reduces product rejection rate, has saved production cost.The part rejection rate caused by forming defects is reduced to 3% by original 90%.
Description
Technical field
The invention belongs to flat board sheet metal part milling forming technology category, is related to a kind of reduction milling part stress deformation of offer
Forming process.
Background technology
For helicopter, it can all use flat board milling sheet metal part to carry out structural adhesive bonding, form fuselage ceiling and ground
Plate support component, it there are about more than 60 and plant, and all plate is larger, is important supportive part.If using 2024 T3
ASNA3010 material, because local thinning stress release is uneven after milling, cause the rapid deformation of part, panelized when serious
Milling part has been rolled into cylindrical shape, and the production of such part, which is delivered, encounters fast knot.
The content of invention
In order to preferably solve the problems, such as flat board milling part deformation, by repetition test, we have proposed using pre-stretching
The method of the two-sided milling of plate solves problems.
Reduce the process of helicopter milling sheet metal component stress deformation, this method includes：
When selecting raw material, using the relatively small plate of internal stress：The T3ASNA3482 of pretensioning plate 2024,
Two-sided milling is uniformly taken in milling, while discharges stress.
If part is one side part milling part, the first overall floor of milling one of milling area one side, is then reprocessed during processing
Local milling part, and another side does not have milling requirement to want one layer of integration mill off yet, make part it is local it is thinning during from
It is dynamic to reach internal stress balance.
For there are still the part that slight milling deforms, aiding in school shape by manpower or three beaming rollers, part is reached
To state good for delivery.
The effect of invention
This method reduces original forming process middle plateform milling part reel or the seriously forming defects such as uneven, carries
The high quality of part, reduces product rejection rate, has saved production cost.Part rejection rate is by original caused by forming defects
90% had is reduced to 3%.
Embodiment
Reduce the process of helicopter milling sheet metal component stress deformation, this method includes：
Consider from selection raw material, using the relatively small plate of internal stress, find pre-stretching after research and testing
This material internal stress of the T3 ASNA3482 of plate 2024 is much smaller, and has been released when processing plate by stretch forming
Internal stress.
From the point of view of milling processing technology, can overall milling drawn game portion, can also one side milling and two-sided milling, then
Two-sided milling is uniformly taken during milling, while the method for discharging stress reaches the purpose of Reducing distortion.Even if part is one side office
Portion's milling part, the first overall floor of milling one of milling area one side, then reprocesses local milling part during processing, and another side does not have
One layer of integration mill off is also wanted in milling requirement, part is automatically achieved internal stress balance during part is thinning.We will
That does will simply select the thickness aluminium sheet of any when purchase raw material, due to most of milling part maximum gauge for 0.6 or
0.8mm, so centralized purchasing 1.2mm raw material.
Milling can be deformed by the above method and be reduced to below 20mm, for there are still zero that slight milling deforms
Part, school shape can be aided in by manpower or three beaming rollers, part is reached state good for delivery.
Milling sheet metal part should replace 2024T3 ASNA3010 using the T3 ASNA3482 of pretensioning plate material 2024, increase
Add and stress deformation is reduced by the process of two-sided milling after respective thickness.
Claims (2)
1. reducing the process of helicopter milling sheet metal component stress deformation, this method includes：
When selecting raw material, using the relatively small plate of internal stress：Pretensioning plate 2024T3ASNA3482；
Two-sided milling is uniformly taken in milling, while discharges stress；
It is characterized in that this method includes：
If part is one side part milling part, the one side first overall floor of milling one in milling area during processing, then reprocessing is local
Milling part, and another side does not have milling requirement to want one layer of integration mill off yet, part is reached automatically during part is thinning
Balanced to internal stress.
2. reduce the process of helicopter milling sheet metal component stress deformation as claimed in claim 1, it is characterized in that, this method
Including：
For there are still the part that slight milling deforms, aiding in school shape by manpower or three beaming rollers, part is reached conjunction
The state that lattice are delivered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188671.5A CN105088230B (en) | 2014-05-07 | 2014-05-07 | Reduce the process of helicopter milling sheet metal component stress deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188671.5A CN105088230B (en) | 2014-05-07 | 2014-05-07 | Reduce the process of helicopter milling sheet metal component stress deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105088230A CN105088230A (en) | 2015-11-25 |
| CN105088230B true CN105088230B (en) | 2017-11-24 |
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ID=54569531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410188671.5A Active CN105088230B (en) | 2014-05-07 | 2014-05-07 | Reduce the process of helicopter milling sheet metal component stress deformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN105088230B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443802A (en) * | 2011-12-16 | 2012-05-09 | 西安西工大超晶科技发展有限责任公司 | Chemical milling liquid and chemical milling method for titanium and titanium alloy thin-wall components |
| CN103272909A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Forming method capable of guaranteeing quality of chemically-milled thick skin workpieces |
| CN103590042A (en) * | 2013-11-22 | 2014-02-19 | 中国科学院金属研究所 | Chemical milling solution and chemical milling method of Ti3Al intermetallic chemical compound |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245923A (en) * | 1988-03-25 | 1989-10-02 | Mitsubishi Heavy Ind Ltd | Controlling method for thickness distribution of superplastic forming parts |
-
2014
- 2014-05-07 CN CN201410188671.5A patent/CN105088230B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443802A (en) * | 2011-12-16 | 2012-05-09 | 西安西工大超晶科技发展有限责任公司 | Chemical milling liquid and chemical milling method for titanium and titanium alloy thin-wall components |
| CN103272909A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Forming method capable of guaranteeing quality of chemically-milled thick skin workpieces |
| CN103590042A (en) * | 2013-11-22 | 2014-02-19 | 中国科学院金属研究所 | Chemical milling solution and chemical milling method of Ti3Al intermetallic chemical compound |
Non-Patent Citations (4)
| Title |
|---|
| "2197铝锂合金的化学铣切工艺";毛大恒等;《机械工程材料》;20110520;第35卷(第5期);第77-79页 * |
| "某型飞机大型壁板类零件化铣双面腐蚀工艺研究";李博等;《第五届中国航空学会青年科技论坛》;20121031;第384-388页 * |
| "解决铝板化铣变形的途径";毛凤兰;《西飞科技》;19951231(第3期);第34-35、24页 * |
| "铝合金化学铣切疲劳性能";谢春英等;《腐蚀与防护》;20080415;第29卷(第4期);第185-188页 * |
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| Publication number | Publication date |
|---|---|
| CN105088230A (en) | 2015-11-25 |
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