Aluminum coil is a metal product for flying shearing after calendering and drawing Angle processing by casting and rolling machine.
In the process of aluminum coil, silicon has a corrosive effect on the alloy. Although the aluminum alloy with more than 12%Si is generally called high silicon aluminum alloy, it is recommended to use diamond tool, but this is not absolute, and the destructive power of the tool is gradually increased with the increase of silicon content.
Therefore, some manufacturers recommend the use of diamond tools when the silicon content exceeds 8%. Aluminum alloy with silicon content between 8% and 12% is a transition range, which can use either ordinary hard alloy or diamond tool. However, the use of hard alloy should be the use of PVD(physical coating) method, does not contain aluminum, film thickness of the tool. Because of PVD method and the small film thickness cutting tool to keep the sharp cutting edges, made possible by the (or grew up in order to avoid abnormal film layer on the edge need to enough passivation of blade, cutting aluminum alloy will not sharp), and membrane material containing aluminum may make the blade film layer with the workpiece materials close cooperation with the combination of film and cutting tool substrate. Because the super hard coating is mostly aluminum, nitrogen, titanium compounds, may be due to the carbide matrix with the film layer when a small amount of peeling caused edge collapse.
Thermal insulation aluminum coil is widely used in stamping, home appliance industry, sheet metal production, decoration curtain wall, automobile industry, mold processing, shipbuilding, transportation facilities, pipe insulation, lighting fixtures, advertising signs, etc
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