CN1954935A - Inflation shaping process of alluminium alloy vehicle covering - Google Patents
Inflation shaping process of alluminium alloy vehicle covering Download PDFInfo
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- CN1954935A CN1954935A CNA2005101144218A CN200510114421A CN1954935A CN 1954935 A CN1954935 A CN 1954935A CN A2005101144218 A CNA2005101144218 A CN A2005101144218A CN 200510114421 A CN200510114421 A CN 200510114421A CN 1954935 A CN1954935 A CN 1954935A
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Abstract
A technology for manufacturing the Al-alloy covering part of car by a pneumatic expanding method includes such steps as heating die and Al-alloy plate to a proper temp, and filling compressed gas to deform the Al-alloy plate.
Description
Technical field the present invention relates to a kind of inferior superplastic gas-bulging forming technology of aluminium alloy automobile covering
It is one of important measures of automobile loss of weight reduction oil consumption that background technology substitutes steel plate manufacturing body of a motor car with aluminum alloy plate materials.In the prior art, conventional cold punching technology is used in the shaping of aluminium alloy automobile covering more.Lower with this explained hereafter aluminium alloy automobile covering yield rate, main because the shortcoming of this production technology has two aspects: the first at ambient temperature aluminium alloy plasticity low, the defective of breaking appears in forming process easily; It two is that the part resilience that is shaped is big, thereby causes that parts size precision is very poor.Cold stamping for the complicated shape part is shaped, and as automotive front baffle mud plate, uses multiple working procedure usually, and this has not only increased complex procedures, and has increased cost.In order to prevent that formation of parts from breaking, need the cutting process mouth to discharge the shaping internal stress sometimes.At above-mentioned situation, Kai Fa aluminium alloy automobile covering superplastic gas-bulging forming technology has been avoided the aluminium alloy shortcoming that plasticity is low at ambient temperature, resilience is big effectively in recent years, but this common superplastic forming technological requirement aluminum alloy plate materials must be special-purpose fine grain sheet material, has only 5083 aluminium alloys through special technology specially treated to meet the demands at present.Because this sheet material is batch process as yet, this has not only increased the application that material cost has also limited this technology.
Summary of the invention: task of the present invention provides the inferior superplastic forming new technology of a kind of aluminium alloy automobile covering.The intension of its " Asia " word is that original aluminum sheet alloy grain size is not had specific (special) requirements, can use general industry grade aluminium alloy sheet material: because the aluminum alloy plate materials among the present invention is to be shaped under heating condition, so there is not the resilience problem.Compare with cold punching technology, operation of the present invention is few, and cost is low, the yield rate height.
The present invention adopts the special technology analysis and effectively reduces the requirement of part forming to the original plate high-temp plastic, according to analysis result designing mould and technological parameter.
The present invention adopts the gas expansion forming method, and whole forming process needs last heating plate, border heater, temperature control system and the gas pressurization system of a die, a band flanging sealing gas.
The system that adopts said apparatus to form heats mould, after mold heated to 460 ℃～520 ℃, will be placed on the die by aluminum alloy plate materials.By the effect of forcing press, last heating plate is pressed in plate on the die, and a boss ring that is used for the gas sealing is arranged on the die joint of die.Air admission hole from heating plate feeds gas then, and aluminum alloy plate materials is distortion gradually under gas pressure, and final and die is fitted, and is shaped and finishes, and takes out part.
The present invention will be further described in detail below in conjunction with accompanying drawing for description of drawings
Fig. 1 is an aluminium alloy automobile coverage forming sketch of the present invention
Fig. 2 needs aluminum alloy formed automobile panel figure among the present invention
The specific embodiment at first obtains the mechanical behavior under high temperature data of concrete aluminum alloy plate materials, concrete geomery according to part to be formed carries out preliminary mould and technological design, use numerical simulation technology and optimize mould and technology, reduce local train, and select the aluminum alloy plate materials of the suitable trade mark in view of the above.
Need predetermined technological parameter: forming temperature, bulging gas pressure time graph.
Need the hardware facility made in advance: resistant to elevated temperatures mould, heater and temperature regulating device have the hydraulic press of enough tonnages and work top.
Fig. 2 is for using aluminum alloy formed automotive front baffle mud plate part of the present invention.The described aluminium alloy automobile coverage forming of Fig. 1 sketch comprises following cooled plate, inner heating device, die, external heat device, aluminum alloy plate materials, goes up heating plate and last cooled plate.3 are the shaping die among the figure, and plate is pressed on the die 3 by last heating plate 6, and the trapezoidal boss of a circle is arranged on the die joint of die 3 in order to prevent to leak gas.Among Fig. 12,4,6 is heater, by they heating dies 3.A plurality of points for measuring temperature are arranged in die the inside, after all points for measuring temperature all reach set temperature, the starting pressure machine.Plate 5 is placed on the die, uses heating plate again and push down plate, be incubated the gas that just begins to feed suitable pressure after 2～3 minutes by the air admission hole of last heating plate.Pressure according to predetermined pressure-time curve control input gas finishes until being shaped.Curring time is relevant with the concrete shape of part, is generally 10-30 minute.
Claims (4)
1. the inferior superplastic forming new technology of an aluminium alloy automobile covering, under isothermy, the gas pressure effect makes the aluminum alloy plate materials distortion, final and the die applying desired part that is shaped.
2. according to claim 1 described forming technology, use the general industry trade mark 5182 aluminum alloy plate materials, its crystallite dimension is not had specific (special) requirements.
3. according to claim 1 described forming technology, for the aluminium alloy of the industrial trade mark 5182, the forming temperature scope is 460 ℃～520 ℃.
4. according to claim 1 described forming technology, for the aluminium alloy of the industrial trade mark 5182, the maximum pressure of formation of parts is 0.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101144218A CN100443212C (en) | 2005-10-25 | 2005-10-25 | Inflation shaping process of alluminium alloy vehicle covering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101144218A CN100443212C (en) | 2005-10-25 | 2005-10-25 | Inflation shaping process of alluminium alloy vehicle covering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1954935A true CN1954935A (en) | 2007-05-02 |
| CN100443212C CN100443212C (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101144218A Expired - Fee Related CN100443212C (en) | 2005-10-25 | 2005-10-25 | Inflation shaping process of alluminium alloy vehicle covering |
Country Status (1)
| Country | Link |
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| CN (1) | CN100443212C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468373B (en) * | 2007-12-30 | 2011-11-23 | 哈尔滨理工大学 | Self-heating type superplastic gas bulging forming die for alloy sheet |
| CN106077298A (en) * | 2016-08-09 | 2016-11-09 | 机械科学研究总院先进制造技术研究中心 | A kind of breadth light alloy plate High Efficiency Thermal press forming die |
| CN106140919A (en) * | 2015-04-02 | 2016-11-23 | 福特环球技术公司 | Shape the method for panel from base material and shape the die assembly of this panel |
| CN112692149A (en) * | 2020-12-09 | 2021-04-23 | 哈尔滨工业大学 | Gas forming method for aluminum alloy covering part with short steps and small round corners |
| CN112705611A (en) * | 2020-12-08 | 2021-04-27 | 安徽中鑫精密铸造科技有限公司 | Rapid superplastic forming method for aluminum alloy covering part |
| CN113118275A (en) * | 2019-12-31 | 2021-07-16 | 中国第一汽车股份有限公司 | Cylindrical ultra-deep aluminum alloy fender superplastic forming process method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030712A (en) * | 1987-07-18 | 1989-02-01 | 吉林工业大学 | Increase substantially the new method of speed of expansive forming |
| JP2001071046A (en) * | 1999-08-31 | 2001-03-21 | Sky Alum Co Ltd | High temperature gas pressure forming method |
| JP2002292435A (en) * | 2001-03-30 | 2002-10-08 | Japan Aircraft Mfg Co Ltd | Superelastic molding method |
| JP3827563B2 (en) * | 2001-11-28 | 2006-09-27 | 本田技研工業株式会社 | Mold for superplastic processing of aluminum alloy sheet |
-
2005
- 2005-10-25 CN CNB2005101144218A patent/CN100443212C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468373B (en) * | 2007-12-30 | 2011-11-23 | 哈尔滨理工大学 | Self-heating type superplastic gas bulging forming die for alloy sheet |
| CN106140919A (en) * | 2015-04-02 | 2016-11-23 | 福特环球技术公司 | Shape the method for panel from base material and shape the die assembly of this panel |
| CN106140919B (en) * | 2015-04-02 | 2019-11-08 | 福特环球技术公司 | The method of panel is shaped from substrate and shapes the die assembly of the panel |
| CN106077298A (en) * | 2016-08-09 | 2016-11-09 | 机械科学研究总院先进制造技术研究中心 | A kind of breadth light alloy plate High Efficiency Thermal press forming die |
| CN113118275A (en) * | 2019-12-31 | 2021-07-16 | 中国第一汽车股份有限公司 | Cylindrical ultra-deep aluminum alloy fender superplastic forming process method |
| CN112705611A (en) * | 2020-12-08 | 2021-04-27 | 安徽中鑫精密铸造科技有限公司 | Rapid superplastic forming method for aluminum alloy covering part |
| CN112692149A (en) * | 2020-12-09 | 2021-04-23 | 哈尔滨工业大学 | Gas forming method for aluminum alloy covering part with short steps and small round corners |
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| Publication number | Publication date |
|---|---|
| CN100443212C (en) | 2008-12-17 |
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