Aluminum alloys are used a lot more frequently in commercial applications than 100 % pure or pure light weight aluminum , because in an unalloyed state the materials properties are unsuitable for machining: The machining behavior of 100 % pure aluminum is challenging and lubricious. Furthermore, the material at 660 ° C includes a very low melting point, not forgetting the very high thermal conductivity of the steel and its also high thermal growth coefficient. This helps it be difficult to weld .
It may be that some of these characteristics are needed in specific areas, but the properties and requirements that are in keeping demand can not be met or fulfilled with real aluminum. The lightweight aluminum is therefore blended with certain international metals, which positively modify the physical properties of the light steel depending on the application form. The light weight aluminum is consequently alloyed – it produced in this manner different light weight aluminum alloys .
The classification of light weight aluminum alloys
An alloy is normally by definition a metallic materials consisting of at least two elements . Standard alloy constituents of an light weight aluminum alloy admixed with the base material Al99.5 are, for example, beryllium, magnesium, manganese, copper, nickel, silicon, zinc and tin.
Primarily meant by the alloy strength ideals of the material are increased, but also various other properties can be influenced based on the alloy element, so that it, for example, l judges welded can be made. With regards to increasing the power, this is often done by work hardening following the alloying elements have already been added.
The curing can also be achieved by heat therapy. Depending on www.aluminiumsupplier.com.cn , the material could be divided into naturally hard or curable light weight aluminum alloys , and also in lightweight aluminum wrought alloys and aluminum casting alloys. The previous are prepared by extrusion or rolling, while aluminium casting alloys are produced by casting, as the name suggests.
From this it could be deduced what can occur from the respective aluminium alloys. While aluminium profiles, light weight aluminum tubes or aluminium sheets can be produced from wrought alloys using the rolling or extrusion procedure, casting alloys are used to manufacture parts, for instance engine housings or the like.