CN106238498A - A kind of aluminium alloy square bend pipe processing method - Google Patents
A kind of aluminium alloy square bend pipe processing method Download PDFInfo
- Publication number
- CN106238498A CN106238498A CN201610639769.7A CN201610639769A CN106238498A CN 106238498 A CN106238498 A CN 106238498A CN 201610639769 A CN201610639769 A CN 201610639769A CN 106238498 A CN106238498 A CN 106238498A
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- China
- Prior art keywords
- aluminium alloy
- pipe
- tube
- bend pipe
- processing method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
Abstract
This application discloses a kind of aluminium alloy square elbow processing method, its step include first provide a tube and pipe of aluminium alloy, continue described tube and pipe of aluminium alloy is sequentially made annealing treatment, bending process, pressurization preforming process, high pressure bulging process and material behavior adjustment process, it is to put into the tube and pipe of aluminium alloy after bending to carry out preforming of pressurizeing, and the inside pre-bending in corner in the first mould that described pressurization preforming processes；Described high pressure bulging process be by pressurized preforming after tube and pipe of aluminium alloy put in the second mould, water under high pressure is poured at two ends, and hydraulic pressure is arranged on 5 6MPa, obtains and the second mold shape on all four aluminium alloy square bend pipe so that tube and pipe of aluminium alloy deforms.The aluminium alloy square bend pipe processing method of the application can be effectively improved the wrinkle of square bend pipe corner, and finished size precision is good, intensity is high, to meet such as the design requirement of automobile industry.
Description
Technical field
The application relates to aluminium-alloy pipe processing technique field, particularly relates to a kind of aluminium alloy square bend pipe processing method.
Background technology
Lightweight is one of trend of current China Automobile Industry, and uses aluminium to replace old steel use to become
One of effective way of lightization amount, therefore aluminium alloy pipe is widely used in automobile industry.But tradition enables aluminum alloy to
Pipe forms the method for bending and is primarily directed to tube and pipe of aluminium alloy.Additionally, relative to tube and pipe of aluminium alloy, aluminum alloy square tube is more beneficial for
Assembling and fixing, if using tube and pipe of aluminium alloy to be processed as the method for bend pipe to process aluminum alloy square tube, can enable aluminum alloy to square tube and depositing
There are being fold and cracking phenomena, it is impossible to reach the requirement of design, and inhibit aluminium alloy pipe in the application scale of automobile industry.
Summary of the invention
In view of this, technical problems to be solved in this application are that existing aluminium alloy square bend pipe processing method makes aluminum
Alloy square bend pipe also exists gauffer and cracking phenomena, causes qualification rate relatively low, it is impossible to meet the demand of design.
Compared with prior art, this application discloses a kind of aluminium alloy square bend pipe processing method, it is characterised in that include
Following steps: tube and pipe of aluminium alloy is provided, described tube and pipe of aluminium alloy is sequentially implemented annealing, bending process, pressurization preforming
Process, high pressure bulging processes and processes with material behavior adjustment；It is the tube and pipe of aluminium alloy after bending that described pressurization preforming processes
Put into and the first mould carries out preforming of pressurizeing, and the inside pre-bending in corner；It is by pressurized that described high pressure bulging processes
Tube and pipe of aluminium alloy after preforming is put in the second mould, and water under high pressure is poured at two ends, and hydraulic pressure is arranged on 5-6MPa, to enable aluminum alloy to
Pipe deforms and obtains and the second mold shape on all four aluminium alloy square bend pipe.
An embodiment according to the application, above-mentioned annealing includes first being heated up to 380-410 DEG C, and is incubated 6 hours,
It is cooled to 220 DEG C of air coolings subsequently by the cooling rate of 25 DEG C/h.
An embodiment according to the application, above-mentioned bending process is by bending machine on described tube and pipe of aluminium alloy, and one end presss from both sides
Tightly, clamping force is 2.0-2.5MPa, pushes movable internal mold in described tube and pipe of aluminium alloy, rotates external mold, and bending machine is with described external mold
Rotate described tube and pipe of aluminium alloy brake forming.
An embodiment according to the application, above-mentioned material characteristic adjustment processes and includes solution treatment and Ageing Treatment.
An embodiment according to the application, above-mentioned solution treatment is heated to 530 DEG C and is incubated 1 hour, carries out water subsequently
Cold.
An embodiment according to the application, above-mentioned Ageing Treatment is to be incubated 8 hours at 175 DEG C.
In sum, the aluminium alloy square bend pipe processing method of the application can improve aluminium alloy square bend pipe corner wrinkle
Pleat, promotes qualification rate, meets design requirement, to be applied to automobile industry.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please is used for explaining the application, is not intended that the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the flow chart of steps of the aluminium alloy square bend pipe processing method of the application one embodiment.
Detailed description of the invention
To schematically disclose multiple embodiments of the application, as clearly stated, the details in many practices below
Will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the application.The most just
Being to say, in the some embodiments of the application, the details in these practices is non-essential.
Referring to Fig. 1, it is the flow chart of steps of aluminium alloy square bend pipe processing method of the application one embodiment.As
Shown in figure, this application provides a kind of aluminium alloy square bend pipe processing method, be especially applicable to that there is bigbore aluminium alloy
Square bend pipe, above-mentioned aluminium alloy square bend pipe processing method sequentially includes following steps:
Step one, first provide the aluminium alloy square bend pipe that tube and pipe of aluminium alloy, above-mentioned tube and pipe of aluminium alloy be based on being prepared
Size design；
Step 2, the tube and pipe of aluminium alloy of step one being implemented annealing, above-mentioned annealing includes first being heated up to 380-
410 DEG C, and it is incubated 6 hours, it is cooled to 220 DEG C of air coolings by the cooling rate of 25 DEG C/h subsequently；
Step 3, to through step 2 tube and pipe of aluminium alloy implement bending process, above-mentioned bending process is by annealed place
Bending machine on the tube and pipe of aluminium alloy of reason, one end clamps, and clamping force is 2.0-2.5MPa, pushes in activity in described tube and pipe of aluminium alloy
Mould, rotates external mold, and bending machine rotates tube and pipe of aluminium alloy brake forming with external mold；
Step 4, preforming of pressurizeing the tube and pipe of aluminium alloy execution through step 3 process, and above-mentioned pressurization preforming processes
It is the tube and pipe of aluminium alloy after bending to be put into the first mould carry out preforming of pressurizeing, to obtain similar aluminium alloy square bend pipe finished product
Part shape, and the inside pre-bending in corner；
Step 5, to through step 4 tube and pipe of aluminium alloy implement high pressure bulging process, above-mentioned high pressure bulging process be by
Tube and pipe of aluminium alloy after preforming is put in the second mould, and water under high pressure is poured at two ends, and hydraulic pressure is arranged on 5-6MPa, to enable aluminum alloy to
Pipe deforms and obtains and the second mold shape on all four aluminium alloy square bend pipe, it is ensured that outside aluminium alloy square bend pipe
Type, distortion and angle meet design requirement；
Step 6, to through obtained by step 5 aluminium alloy square bend pipe implement material behavior adjustment process, it is ensured that side
The intensity of type bend pipe meets design requirement, and above-mentioned material characteristic adjustment processes and includes solution treatment and Ageing Treatment.At solid solution
Reason is to be incubated 1 hour by being heated to 530 DEG C through the aluminium alloy square bend pipe obtained by step 5, carries out water-cooled subsequently.Timeliness
Process is that at 175 DEG C, the above-mentioned aluminium alloy square bend pipe through solution treatment is incubated 8 hours.By solution treatment improve toughness and
Corrosion stability, improves material hardness and intensity by Ageing Treatment, to be adjusted material behavior.
The aluminium alloy square bend pipe processing method of the application has following several advantages:
1. pair tube and pipe of aluminium alloy is first annealed, and can effectively remove when being fabricated to tube and pipe of aluminium alloy by former material in extrusion process
Formed in fibrous tissue, improve material elongation percentage, it is to avoid tube and pipe of aluminium alloy occurs when follow-up bending process gauffer with
Cracking；
2. the preforming that carries out pressurizeing of pair tube and pipe of aluminium alloy processes, and improves metal flow in high pressure bulging processing procedure subsequently,
Local deformation amount is avoided excessive to cause material cracks；
3. use high pressure bulging to process, higher scantling concordance can be obtained；
4. the product obtained by has that dimensional accuracy is good, the high feature high with yield rate of intensity.
In sum, the aluminium alloy square bend pipe processing method of the application can avoid tube and pipe of aluminium alloy in follow-up bending process
Shi Fasheng gauffer and cracking, and use high pressure bulging to process, enable aluminum alloy to pipe and be deformed into complete with the second mold shape one
The aluminium alloy square bend pipe caused, dimensional accuracy is good, the high advantage high with yield rate of intensity to make product have.The aluminium alloy of the application
Square bend pipe processing method can ensure that the external form of aluminium alloy square bend pipe, distortion, angle and intensity meet design requirement, and can
Production for heavy caliber high-strength aluminium alloy square bend pipe.
Described above illustrate and describes the preferred embodiments of the present invention, but as previously mentioned, it should be understood that the present invention is not
It is confined to form disclosed herein, is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment
And environment, and can be carried out by above-mentioned teaching or the technology of association area or knowledge in invention contemplated scope described herein
Change.And the change that those skilled in the art are carried out and change are without departing from the spirit and scope of the present invention, the most all should be in institute of the present invention
In attached scope of the claims.
Claims (6)
1. an aluminium alloy square bend pipe processing method, it is characterised in that comprise the following steps: to provide tube and pipe of aluminium alloy, to institute
State tube and pipe of aluminium alloy and sequentially implement annealing, bending process, pressurization preforming process, the process of high pressure bulging and material behavior tune
Whole process；Described pressurization preforming process be will bending after tube and pipe of aluminium alloy put into the first mould is carried out pressurize preforming,
And the inside pre-bending in corner；Described high pressure bulging process be by pressurized preforming after tube and pipe of aluminium alloy put into the second mould
In tool, water under high pressure is poured at two ends, and hydraulic pressure is arranged on 5-6MPa, obtains and the second mold shape so that tube and pipe of aluminium alloy deforms
On all four aluminium alloy square bend pipe.
2. aluminium alloy square bend pipe processing method as claimed in claim 1, it is characterised in that described annealing includes first adding
Temperature is to 380-410 DEG C, and is incubated 6 hours, is cooled to 220 DEG C of air coolings by the cooling rate of 25 DEG C/h subsequently.
3. aluminium alloy square bend pipe processing method as claimed in claim 1, it is characterised in that described bending process is by described
Bending machine on tube and pipe of aluminium alloy, one end clamps, and clamping force is 2.0-2.5MPa, pushes movable internal mold in described tube and pipe of aluminium alloy,
Rotating external mold, bending machine rotates described tube and pipe of aluminium alloy brake forming with described external mold.
4. aluminium alloy square bend pipe processing method as claimed in claim 1, it is characterised in that described material behavior adjustment processes
Include solution treatment and Ageing Treatment.
5. aluminium alloy square bend pipe processing mode as claimed in claim 4, it is characterised in that described solution treatment is heated to
530 DEG C are incubated 1 hour, carry out water-cooled subsequently.
6. aluminium alloy square bend pipe processing method as claimed in claim 5, it is characterised in that described Ageing Treatment is 175
DEG C insulation 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639769.7A CN106238498A (en) | 2016-08-04 | 2016-08-04 | A kind of aluminium alloy square bend pipe processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639769.7A CN106238498A (en) | 2016-08-04 | 2016-08-04 | A kind of aluminium alloy square bend pipe processing method |
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| CN106238498A true CN106238498A (en) | 2016-12-21 |
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| CN201610639769.7A Pending CN106238498A (en) | 2016-08-04 | 2016-08-04 | A kind of aluminium alloy square bend pipe processing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691882A (en) * | 2017-04-07 | 2018-10-23 | 刘波 | Vehicle dormer window drives guide pipe and its manufacturing method, driving guide pipe inhaul cable assembly |
| CN114850260A (en) * | 2022-04-22 | 2022-08-05 | 成都飞机工业（集团）有限责任公司 | Aluminum alloy pipe bending forming method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06226339A (en) * | 1993-01-29 | 1994-08-16 | Tube Forming:Kk | Manufacture of specially shaped bent pipe |
| CN101616758A (en) * | 2007-02-21 | 2009-12-30 | 新日本制铁株式会社 | The press-bending processing unit (plant) and the method thereof of tubing |
| JP2010070161A (en) * | 2008-09-22 | 2010-04-02 | Matsumoto Jukogyo Kk | Method of manufacturing gas conduit for pretensioner |
| CN101817031A (en) * | 2010-05-20 | 2010-09-01 | 什邡市明日宇航工业股份有限公司 | Method for manufacturing titanium alloy guiding pipe for aircraft engine |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
-
2016
- 2016-08-04 CN CN201610639769.7A patent/CN106238498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06226339A (en) * | 1993-01-29 | 1994-08-16 | Tube Forming:Kk | Manufacture of specially shaped bent pipe |
| CN101616758A (en) * | 2007-02-21 | 2009-12-30 | 新日本制铁株式会社 | The press-bending processing unit (plant) and the method thereof of tubing |
| JP2010070161A (en) * | 2008-09-22 | 2010-04-02 | Matsumoto Jukogyo Kk | Method of manufacturing gas conduit for pretensioner |
| CN101817031A (en) * | 2010-05-20 | 2010-09-01 | 什邡市明日宇航工业股份有限公司 | Method for manufacturing titanium alloy guiding pipe for aircraft engine |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691882A (en) * | 2017-04-07 | 2018-10-23 | 刘波 | Vehicle dormer window drives guide pipe and its manufacturing method, driving guide pipe inhaul cable assembly |
| CN114850260A (en) * | 2022-04-22 | 2022-08-05 | 成都飞机工业（集团）有限责任公司 | Aluminum alloy pipe bending forming method |
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Application publication date: 20161221 |