Aluminium Coil

The aluminum coil is a metal product for the flying shear after the casting mill has been subjected to calendering and drawing. Aluminum coils are widely used in electronics, packaging, construction, machinery, etc. There are many aluminum coil production enterprises in China, and the production process has caught up with developed countries. Depending on the metal elements contained in the aluminum coil, the aluminum coils can be roughly divided into 9 categories, that is, they can be divided into 9 series.
Aluminum coil processing
Silicon has a corrosive effect on cemented carbide. Although aluminum alloys exceeding 12% Si are generally referred to as high-silicon aluminum alloys, diamond tools are recommended, but this is not absolute, and the increasing silicon content increases the destructive power of the tools. Therefore, some manufacturers recommend the use of diamond tools when the silicon content exceeds 8%.

An aluminum alloy with a silicon content of between 8% and 12% is a transition zone, either a normal hard alloy or a diamond tool. However, the use of cemented carbide should use a PVD (physical coating) method, without aluminum, a tool with a small film thickness. Because the PVD method and small film thickness make it possible for the tool to maintain a sharper cutting edge (otherwise, in order to avoid abnormal growth of the film at the edge, sufficient cutting of the cutting edge is required, the aluminum alloy will not be sharp enough) while the aluminum material of the film material may cause the blade film layer to interact with the workpiece material to break the bond between the film layer and the tool substrate.

Because the super-hard 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 as the film peels off.
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