Aluminum alloys are utilized a lot more frequently in commercial applications than genuine or pure aluminum , because within an unalloyed state the material properties are unsuitable for machining: The machining behavior of 100 % pure aluminum is tough and lubricious. In addition, the materials at 660 ° C includes a suprisingly low melting point, not forgetting the very high thermal conductivity of the metal and its also high thermal expansion coefficient. This makes it difficult to weld .
It could be that a few of these characteristics are required in specific areas, but the properties and requirements that are in common demand can not be met or fulfilled with pure aluminum. The aluminium is therefore mixed with certain international metals, which positively modify the physical properties of the light steel depending on the application form. The aluminium is consequently alloyed – it made in this way different aluminium alloys .
The classification of aluminum alloys
An alloy is by definition a metallic material consisting of at least two elements . Typical alloy constituents of an light weight aluminum alloy admixed with the base material Al99.5 are, for instance, beryllium, magnesium, manganese, copper, nickel, silicon, zinc and tin.
Primarily designed by the alloy strength ideals of the material are improved, but also various other properties can be influenced depending on the alloy component, to ensure that it, for instance, l judges welded could be made. With regards to increasing the strength, this can be done by function hardening following the alloying elements have already been added.
The curing may also be achieved by heat therapy. Based on Aluminium Profile Supplier , the material could be divided into normally hard or curable lightweight aluminum alloys , and in addition in aluminium wrought alloys and aluminium casting alloys. The former are prepared by extrusion or rolling, while aluminum casting alloys are made by casting, as the name suggests.
From this it can be deduced what can occur from the respective aluminium alloys. While aluminum profiles, aluminum tubes or lightweight aluminum sheets could be created from wrought alloys using the rolling or extrusion procedure, casting alloys are used to manufacture parts, for instance electric motor housings or the like.