Die Cast Aluminum Heat Sinks. Aluminum Heat Sinks have one important purpose, and that is to regulate heat generated by the product it is in. These heat sinks are placed in most electronics and appliances so that the heat from electrical wiring and other parts of the product are diverted from them into the heat sink, thus protecting them from overheating and malfunctioning. In other words, Aluminum Heatsinks provide a very important safety feature for these products. This means that throughout its life span, it will take on a lot of abuse and beating, which is why aluminum is ideal for the job.
Aluminum is a very tough and durable material. It has been noted that it is comparable to steel in terms of durability. But, when it comes to weight, aluminum weighs just a third of steel of the same size and shape. This makes it ideal for making heat sinks. Also, aluminum can be harvested almost anywhere in the world. This means that it is cheap and easy to acquire. To meet high demands for Aluminum Heat Sinks, the manufacturing process known as die casting is used.
The first step in die casting Aluminum Heatsinks is to liquefy the aluminum bars that are going to be used. Once in their liquid state, they will then be injected into casting molds. These castings give the liquid its new shape. Then, pressure of up to 35,000 pounds per square inch/PSI is applied on the castings. This will let the liquid set in every part of the mold. It will then be set aside to cool and harden. Once opened, the product only requires a few finishing touches and its done.