| 简介 |
The present invention relates to an aluminum alloy having high processability. Specifically, the present invention relates to an aluminum alloy which : comprises, as alloying elements, silicon (Si), magnesium (Mg), copper (Cu), iron (Fe) and manganese (Mn); additionally comprises, as alloying elements, at least one type of rare-earth metal; and has a remainder made up by inevitable impurities and aluminum (Al), wherein the aluminum alloy has a precipitate or crystallized product area ratio of 0.5-8.5%, the precipitate or crystallized product area ratio being the ratio of, to the area of an arbitrary unit circle on an extruded material of the aluminum alloy, the area of all precipitates or crystallized products which are precipitates or crystallized products of residual silicon left over after generating a Mg2Si precipitate and contained in the unit circle, and which have areas of at least 1 µm2. The aluminum alloy exhibits excellent cutting processability, hole processability, etc. during a drilling process, and simultaneously exhibits excellent extrusion properties, surface roughness, dimensional accuracy, strength, corrosion resistance, etc. |
客服热线：
手机版
二维码
