CN106043463A - Aluminum alloy anti-collision profile for large-size vehicle body and its production process - Google Patents
Aluminum alloy anti-collision profile for large-size vehicle body and its production process Download PDFInfo
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- CN106043463A CN106043463A CN201610686189.3A CN201610686189A CN106043463A CN 106043463 A CN106043463 A CN 106043463A CN 201610686189 A CN201610686189 A CN 201610686189A CN 106043463 A CN106043463 A CN 106043463A
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- section bar
- aluminium alloy
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- extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses an aluminum alloy anti-collision profile for a large-size vehicle body and its production process, and by setting a special profile structure, the profile presents good anti-collision performance, has good energy-absorbing effect during a severe collision and has good buffering performance. By using suitable aluminum alloy material, extrusion temperature, extrusion coefficient, cooling means, straightening means and aging means, an increase in whole production efficiency and yield and a reduction in cost are provided, and the produced aluminum anti-collision profile is imparted medium mechanical properties, good plasticity and good buffering performance; the requirement for usage of a large-size vehicle body is met.
Description
Technical field
The invention belongs to aluminium alloy extrusions manufacture field, be specifically related to a kind of large-scale car body aluminium alloy anticollision section bar and
Its production technology.
Background technology
The development topic of world today's car body materials technology is lightweight, high-performance, safety and environmental protection and energy saving.6008 alloys
There is moderate strength, good plasticity, corrosion resistance and welding performance, mainly for the production of solid and hollow extruded product, though
So the performance of alloy is played main effect by composition, but alloy property the most also can be played by different heat treatment methods and technique
Significant role.There is the problem that plasticity is poor, mechanical properties value is higher, therefore, all more in the existing large-scale car body anticollision type material of China
Weighing apparatus plasticity and raising mechanical properties value, be the effective means improving large-scale car body anti-collision energy.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of large-scale car body aluminium alloy anticollision section bar and produce work
Skill, to solve the problem that plasticity is poor, mechanical properties value is higher existing for existing car body anticollision section bar.
For reaching above-mentioned purpose, the present invention provides following technical scheme: a kind of large-scale car body aluminium alloy anticollision section bar,
This section bar is hollow body structure, including center tubes with extend body, the cross section of described center tubes is octagon, described in prolong
Stretch body and have four, be disposed on four tube walls of octagon center tubes and composition hexagonal tube corresponding with this tube wall
Body.
Further, described extension body forms equilateral hexagon pipe structure with the tube wall of center tubes.
The present invention provides the production technology of a kind of above-mentioned section bar, comprises the following steps successively:
(1) controlling alloy of ingot composition, aluminium alloy cast ingot includes by mass percentage: Mg :≤0.25%, Si:0.5%
～0.7%, Cu :≤0.25%, Mn :≤0.25%, Fe :≤0.2%, Zn :≤0.2%, Ti :≤0.1%, V :≤0.2%,
Al: surplus；
(2) ingot casting is heated to 505 ± 10 DEG C, extrusion die is heated to >=500 DEG C；Recipient is heated to 450 ±
10℃；
(3) utilizing extruder to extrude ingot casting, extrusion coefficient is 15.2, and extrusion speed is 1.5 ± 0.3m/min；
(4) in extrusion die exit, extrudate is carried out air-blast quenching process；
(5) after having extruded, immediately section bar being carried out tension straingtening process, extensibility is 0.5%～1.5%；
(6) in the 12h after tension straingtening processes, section bar being carried out artificial aging, institution of prescription is 240 DEG C of 8h.
The beneficial effects of the present invention is: the large-scale car body aluminium alloy anticollision section bar in the present invention, it is by setting
Special structure, makes section bar have good crashworthiness, and energy-absorbing effect is good when hard hit, possess well buffering
Performance.By using suitable aluminum alloy materials, extrusion temperature, extrusion coefficient, the type of cooling, aligning mode and aging regime,
Improve whole production efficiency and yield rate, reduce low cost；Make the aluminium alloy anticollision section bar mechanics produced
Performance number all reaches: Rm >=200～220Mpa, Rp0.2 >=120～140MPa, and elongation percentage >=15～20% not only have medium
Mechanical properties value, also has excellent plasticity, and section bar is compressed test, and section bar can be compressed into the 20% of original length,
And without brittle fracture phenomenon, in apparent good order and condition, carry out energy-absorbing effect during 60km/h hard hit and well, possess well buffering
Performance；Meet large-scale car body and use requirement.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, the present invention provides drawings described below to carry out
Illustrate:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As it can be seen, the large-scale car body aluminium alloy anticollision section bar in the present embodiment, this section bar is hollow body structure,
Including center tubes 1 and extension body 2, the cross section of described center tubes 1 is octagon, and described extension body 2 has four, interval
It is arranged on four tube walls of octagon center tubes and composition hexagon body corresponding with this tube wall.This stabilized structure, has
Well crashworthiness, when hard hit, energy-absorbing effect is good, possesses good shock-absorbing capacity, efficiently solves existing large-scale
The problem that plasticity is poor, mechanical properties value is higher existing for car body anticollision section bar.
As the further improvement of such scheme, described extension body forms equilateral hexagon pipe with the tube wall of center tubes
Body structure, can further improve its structural stability.
The production technology of a kind of above-mentioned section bar, comprises the following steps successively:
(1) controlling alloy of ingot composition, aluminium alloy cast ingot includes by mass percentage: Mg :≤0.25%, Si:0.5%
～0.7%, Cu :≤0.25%, Mn :≤0.25%, Fe :≤0.2%, Zn :≤0.2%, Ti :≤0.1%, V :≤0.2%,
Al: surplus；
(2) ingot casting is heated to 505 ± 10 DEG C, extrusion die is heated to >=500 DEG C；Recipient is heated to 450 ±
10℃；
(3) utilizing extruder to extrude ingot casting, extrusion coefficient is 15.2, and extrusion speed is 1.5 ± 0.3m/min；
(4) in extrusion die exit, extrudate is carried out air-blast quenching process；
(5) after having extruded, immediately section bar being carried out tension straingtening process, extensibility is 0.5%～1.5%；
(6) in the 12h after tension straingtening processes, section bar being carried out artificial aging, institution of prescription is 240 DEG C of 8h.
The large-scale car body aluminium alloy anticollision section bar produced by this production technology, its mechanical properties value all reaches:
Rm >=200～220Mpa, Rp0.2 >=120～140MPa, elongation percentage >=15～20%.Not only there is medium mechanical properties value, also
Having excellent plasticity, section bar is compressed test, section bar can be compressed into the 20% of original length, and existing without brittle fracture
As, in apparent good order and condition, carry out energy-absorbing effect during 60km/h hard hit and well, possess good shock-absorbing capacity.Whole technique
Production efficiency and yield rate are high, low cost.
Finally illustrate, preferred embodiment above only in order to technical scheme to be described and unrestricted, although logical
Cross above preferred embodiment the present invention to be described in detail, it is to be understood by those skilled in the art that can be
In form and it is made various change, without departing from claims of the present invention limited range in details.
Claims (3)
1. one kind large-scale car body aluminium alloy anticollision section bar, it is characterised in that: this section bar is hollow body structure, including center
Body and extension body, the cross section of described center tubes is octagon, and described extension body has four, is disposed on octagon
On four tube walls of center tubes and corresponding with this tube wall composition hexagon body.
Large-scale car body aluminium alloy anticollision section bar the most according to claim 1, it is characterised in that: described extension body with
The tube wall composition equilateral hexagon pipe structure of center tubes.
3. the production technology of section bar as described in any one of claim 1～2, it is characterised in that comprise the following steps successively:
(1) control alloy of ingot composition, aluminium alloy cast ingot includes by mass percentage: Mg :≤0.25%, Si:0.5%～
0.7%, Cu :≤0.25%, Mn :≤0.25%, Fe :≤0.2%, Zn :≤0.2%, Ti :≤0.1%, V :≤0.2%, Al:
Surplus；
(2) ingot casting is heated to 505 ± 10 DEG C, extrusion die is heated to >=500 DEG C；Recipient is heated to 450 ± 10 DEG C；
(3) utilizing extruder to extrude ingot casting, extrusion coefficient is 15.2, and extrusion speed is 1.5 ± 0.3m/min；
(4) in extrusion die exit, extrudate is carried out air-blast quenching process；
(5) after having extruded, immediately section bar being carried out tension straingtening process, extensibility is 0.5%～1.5%；
(6) in the 12h after tension straingtening processes, section bar being carried out artificial aging, institution of prescription is 240 DEG C of 8h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686189.3A CN106043463B (en) | 2016-08-18 | 2016-08-18 | Large-scale car body aluminium alloy anticollision proximate matter and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610686189.3A CN106043463B (en) | 2016-08-18 | 2016-08-18 | Large-scale car body aluminium alloy anticollision proximate matter and its production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106043463A true CN106043463A (en) | 2016-10-26 |
| CN106043463B CN106043463B (en) | 2018-07-24 |
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| CN201610686189.3A Active CN106043463B (en) | 2016-08-18 | 2016-08-18 | Large-scale car body aluminium alloy anticollision proximate matter and its production technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236881A (en) * | 2017-08-10 | 2017-10-10 | 江苏申阳交通装备有限公司 | A kind of high-performance and low-cost automobile buffer beam aluminium alloy and its preparation technology |
| CN110042276A (en) * | 2019-04-24 | 2019-07-23 | 安徽省金兰金盈铝业有限公司 | A kind of processing technology of traffic lightweight Al-alloy material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003212069A (en) * | 2002-01-25 | 2003-07-30 | Aisin Seiki Co Ltd | Bumper device for automobile |
| CN1856671A (en) * | 2003-07-28 | 2006-11-01 | 住友金属工业株式会社 | Crash energy absorption member |
| CN101104396A (en) * | 2006-07-11 | 2008-01-16 | 丰田铁工株式会社 | Impact absorbing member for vehicle |
| CN201769774U (en) * | 2010-08-25 | 2011-03-23 | 凌云工业股份有限公司 | High-efficient energy-absorbing bumper energy-absorbing device applicable to small vehicles |
| CN103717479A (en) * | 2011-07-29 | 2014-04-09 | 标致·雪铁龙汽车公司 | Motor vehicle body shell chassis frame side rail of octagonal cross section and vehicle fitted with such chassis frame side rails |
| CN104071106A (en) * | 2014-07-22 | 2014-10-01 | 辽宁忠旺集团有限公司 | Production technology for aluminium alloy bumper for automobiles |
| CN105039805A (en) * | 2015-07-08 | 2015-11-11 | 山东裕航特种合金装备有限公司 | Manufacturing method of aluminum alloy mechanical arm track girder hollow profile |
-
2016
- 2016-08-18 CN CN201610686189.3A patent/CN106043463B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003212069A (en) * | 2002-01-25 | 2003-07-30 | Aisin Seiki Co Ltd | Bumper device for automobile |
| CN1856671A (en) * | 2003-07-28 | 2006-11-01 | 住友金属工业株式会社 | Crash energy absorption member |
| CN101104396A (en) * | 2006-07-11 | 2008-01-16 | 丰田铁工株式会社 | Impact absorbing member for vehicle |
| CN201769774U (en) * | 2010-08-25 | 2011-03-23 | 凌云工业股份有限公司 | High-efficient energy-absorbing bumper energy-absorbing device applicable to small vehicles |
| CN103717479A (en) * | 2011-07-29 | 2014-04-09 | 标致·雪铁龙汽车公司 | Motor vehicle body shell chassis frame side rail of octagonal cross section and vehicle fitted with such chassis frame side rails |
| CN104071106A (en) * | 2014-07-22 | 2014-10-01 | 辽宁忠旺集团有限公司 | Production technology for aluminium alloy bumper for automobiles |
| CN105039805A (en) * | 2015-07-08 | 2015-11-11 | 山东裕航特种合金装备有限公司 | Manufacturing method of aluminum alloy mechanical arm track girder hollow profile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107236881A (en) * | 2017-08-10 | 2017-10-10 | 江苏申阳交通装备有限公司 | A kind of high-performance and low-cost automobile buffer beam aluminium alloy and its preparation technology |
| CN110042276A (en) * | 2019-04-24 | 2019-07-23 | 安徽省金兰金盈铝业有限公司 | A kind of processing technology of traffic lightweight Al-alloy material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106043463B (en) | 2018-07-24 |
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