In terms of processing technology, silicon has a corrosive effect on alloys. Although aluminum alloys with a silicon content of more than 12% are generally referred to as high-silicon aluminum alloys, diamond tools are recommended, but this is not absolute. The gradual increase in silicon content will also gradually increase the destructive power of the tool. Therefore, some manufacturers have more silicon content than 8. % of diamond tools are recommended.

Aluminum alloys with a silicon content between 8% and 12% are a transition range, and both ordinary cemented carbide and diamond tools can be used. However, the use of cemented carbide should use a tool with a small thickness of the film that has been physically coated, and does not contain aluminum elements. Because of the PVD method and small film thickness, it is possible for the tool to maintain a sharper cutting edge (otherwise, in order to avoid the abnormal growth of the film at the cutting edge, the cutting edge needs to be passivated enough, and the cutting aluminum alloy will not be sharp enough), and the film material containing aluminum may cause the blade film to have an affinity with the workpiece material and destroy the combination of the film and the tool base. Because the superhard coating is mostly a compound of aluminum, nitrogen, and titanium, it may cause chipping due to a small amount of peeling off of the cemented carbide substrate with the film.

Thermal insulation aluminum coils are widely used in stamping, home appliance industry, sheet metal production, decorative curtain wall, automobile industry, mold processing, shipbuilding, transportation facilities, pipeline insulation, lighting fixtures, advertising signs, etc.