The
car door aluminum alloy profile is extruded with 6005A or 6005 alloy, which belongs to Al Mg Si Mn CR system alloy. It can be strengthened by heat treatment. The main strengthening phase is Mg2Si, and Mg and Si are added The content can improve the strength, but the content is too large, there are many Mg2Si particles formed, the quenching sensitivity is increased, the online quenching speed must be increased, the strength is increased, the bending property and extrusion property of the profile become worse, and there are too many extrusion stripes on the profile surface, so 6005 aluminum alloy should be used, without Mn and Cr, while the content of (Mn + CR) in 6005A alloy is 0.12% - 0.5%.
Production process of 6005 6005A
car door aluminum alloy profile:
|
NO. |
tensile strength |
elongation /% |
|
Required value |
Measured value |
Required value |
Measured value |
|
1 |
150-190 |
157 |
>=15 |
16 |
|
2 |
150-190 |
162 |
>=15 |
17 |
|
3 |
150-190 |
177 |
>=15 |
16 |
|
4 |
150-190 |
166 |
>=15 |
18 |
