Using extruded aluminum heatsinks can be of enormous benefit for commercial and industrial electronic device manufacturers. Improved technology made it possible to produce heat sink extrusions that call for a lighter weight and greater strength combination. Extruded aluminum heatsinks have a higher strength-to-weight ratio than copper, brass, or steel.
Aluminum alloys are very malleable. Heat sink extrusions made from an aluminum alloy can be created in a large number of unique designs. Aluminum is a heat conductor and reflector. Those qualities make it quite useful in applications requiring heat transfer or a shield that is highly reflective. Aluminum alloys are relatively low in price. Through the processes of scraping, refining, and smelting aluminum alloys can be formed into sheets, fins, and foil used in extruded aluminum heatsinks.
Aluminum does not provide as much thermal conductivity as metals such as copper but is far easier to work into heat sink extrusions. Custom aluminum heatsink profile variations are easy to create. An extruded aluminum fin can be easily attached to a base of copper that would conduct large amounts of thermal energy to the less expensive and lighter cooling fin made of an aluminum alloy.
Aluminum heat sink extrusions are used by electronics, medical, military, automotive, electrical, and telecommunication industries, among others. Specialty miniature extrusions are produced for a range of industries. Engineers are challenged on a routine basis to develop demanding and advanced production concepts. To do so, they need to know the essence of the needed function and the environment that the heat sink will be used.
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