Heat sinks are used in removing heat from components and parts of electronic applications and devices. Aluminum heat sinks are designed in such a way that necessitates a reduced amount of machining compared to other production and construction processes. They are produced with all the elements needed for cooling electronic components and the features necessary for them to be mounted on printed circuit (PC) boards. The production of aluminum heat sinks is at the rate of 250 to 2,500 heat sink parts per day. Heat sinks can either be powder-coated, anodized, or sold as raw parts. Another advantage of aluminum heat sinks is their electric conductivity. Because of this, they can be electrically grounded easily. The need for further cost plating in copper is also eliminated. Aluminum heat sinks are also used for electromagnetic inductance (EMI) and radio frequency (RF) shielding.
Regarding technical information, aluminum heat sinks extract heat from PC boards. Their thermal conductivity CGS is 0.23 and their electrical conductivity is 27% of copper standard. As expected, they are also considerably lightweight, with a specific gravity of about 0.10 lbs. per cubic inch. Also, some aluminum heat sinks contain external threads cast into place, with a maximum rate of 24 threads per inch die (TPI) cast into place.
Automotive parts uses numerous types of die cast aluminum heatsinks for cooling oil and electronic parts, computer parts use heat sinks on their PC boards, lighting parts use them for cooling lighting housings or fixtures, communication companies employ heat sinks for satellite, cellular and microwave components, and airplane parts, motor housings, and laser components use die cast aluminum heat sinks in their products. Twitter
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