Active Member
|
[China]
Address: No.915,dajiahui.huijincheng,nanning, nanning city,china
Contact name:helen meng
Guang Xi Baisheng Light Metal Material Co.Ltd |
|
|
Alloy:5083-O, 5182-O, 5754-O, 6014 T6, 6022 T6, 6063 T6, 6111 T4, 6016
T4, 7075 T6, T651.
Application: public transportations. passenger cars,
Advantage :higher strength-to-weight ratio, higher fuel efficiency,
and better formability
Classic alloy: 5182, 5083, 6016, 6011, 6N12, 6014, 6181A, 6009, 6005A, 6061, 6082
Product character: good weldability, good formability, superb bake hardening ability.
| Specifications | ||||
| Alloys (AA) | Temper | Thickness range (mm) | Length range (mm) | Width range (mm) |
5182, 5083, 6016, 6011, 6N12, 6014, 6181A, 6009, 6005A, 6061, 6082 | F and O H111, H112, T4, T6 (For 6061, 6063), T651(Stretched plate) | 6 — 300 | 1000 — 10000 | 500 — 2700 |
Stretchedaluminium plate | |
| Thickness limit | 6 — 70 mm |
| Length limit | 2000 — 10000 mm |
| Chemical composition | ||||||
| Alloy (%) | 5182 | 5083 | 6181A | 6005A | 6061 | 6082 |
| Si | 0.20 | 0.40 | 0.8~1.2 | 0.50~0.9 | 0.40— 0.80 | 0.7~1.3 |
| Fe | 0.35 | 0.40 | 0.45 | 0.35 | 0.70 | 0.50 |
| Cu | 0.15 | 0.10 | 0.10 | 0.30 | 0.15— 0.40 | 0.10 |
| Mn | 0.20~0.50 | 0.40— 1.0 | 0.15 | 0.50 | 0.15 | 0.40~1.0 |
| Mg | 4.0~5.0 | 4.0— 4.9 | 0.6~1.0 | 0.40~0.7 | 0.8— 1.2 | 0.6~1.2 |
| Cr | 0.10 | 0.05— 0.25 | 0.10 | 0.30 | 0.04— 0.35 | 0.25 |
| Ni | — | — | — | — | — | — |
| Zn | 0.25 | 0.25 | 0.20 | 0.20 | 0.25 | 0.20 |
| Ti | 0.10 | 0.15 | 0.10 | 0.10 | 0.15 | 0.10 |
| Each (Others) | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Total (Others) | 0.15 | 0.10 | 0.10 | 0.15 | 0.15 | 0.15 |
| Al | Remaining | Remaining | Remaining | Remaining | Remaining | Remaining |
| Single number indicates maximum content. | ||||||
Current Practice in aluminium plate Forming
* Cold forming-- forming at room temperature
* Warm forming-- forming at elevated temperature (<350℃)
The formability of aluminum alloys increases with increasing
temperature and decreasing strain rate.
The blank( and sometimes the dies) should be heated.
More complex tools are required and insulation is necessary if the
dies are heated.
Cycle time is longer than cold forming due to heating process.
Lubricants that perform well at elevated temperatures should be
used.
Springback is reduced.
Density, Elastic modulus and anisotropy of aluminum vs. That of
steel
* The density of aluminum(2.7g/cm3) is one third of
steel(7.85g/cm3), Thus, weight can be reduced.
* Elastic modulus of aluminum(70 Gpa) is one third of steel
(210Gpa). As a result, the parts previously designed for steel need
to be redesigned to achieve the same stiffness.
| Material | Steel | Aluminum | |||||
| Mild 140/270 | HSLA 350/450 | DP 500/800 | MS 1250/1520 | 5754-O | 6060 T6 | 7021 T6 | |
| UTS(Mpa) | 270 | 450 | 800 | 1520 | 130 | 245 | 430 |
* Smaller elastic modulus also results in more springback
compensation(assuming the strengths are the same).
* Anisotropy values are lower than steel.
