Aluminum Die Casting of aluminum heat sinks save the cost of machining and they look better.

Aluminum Die Casting of aluminum heat sinks save the cost of machining and they look better. Heat sinks remove heat from parts and components in electronic applications. Aluminum heatsinks are designed in a way that requires less machining than other manufacturing processes. The cooling fins can be manufactured at the same time as the mounting holes. Heatsink parts are made with all features necessary for cooling electronic components and to mount the heat sinks on the printed circuit board (PC board). Aluminum heat sinks have a high dimensional stability. Heat sink production begins as soon as the tooling is produced. Aluminum heat sinks are produced at the rate of 250 heat sink parts per day to 2,500 heat sink parts per day. Heatsinks look good as raw parts or can be anodized or powdercoated. Using aluminum die casting parts for your heatsinks can save money and time.



Aluminum heat sink parts have another advantage. They are electrically conductive. This benefits the manufacturers in three ways:
# Aluminum heatsink parts do not need added cost plating in copper.
# Because the parts are electrically conductive, they can easily be electrically grounded.
# Aluminum Heatsink parts are used for RF and EMI shielding.

Heatsink parts or heat sinks made in aluminum draw heat from PC boards and have a thermal conductivity CGS of 0.23. The electrical conductivity of aluminum die cast heat sink parts is 27 percent of copper standard. Aluminum heat sinks are also very light, having a specific gravity of about 0.10 pounds per cubic inch. Some aluminum heat sinks have external threads cast into place. The maximum threads per inch die cast into place is 24 TPI.