See how extruded aluminum is ideal for applications

<p>Extruded aluminum is one of the most popular and cost-efficient heat sink fabrication methods, An Extruded Heatsink uses the Extrusion manufacturing process where material is pushed through a die of the desired cross-section. A detailed imformation of the extrusion process can be found from Lori's website: <a href="https://www.lorithermal.com/extrusion-heat-sink" rel="noopener noreferrer" target="_blank">https://www.lorithermal.com/extrusion-heat-sink</a>. An Extruded Heatsink can have very complex cross-sections, and use materials that are brittle. The extrusion forms parts with an excellent surface finish, and are ideal for additional surface treatments such as Anodizing, or plating. Radian uses high thermal conductivity aluminum alloy A6063 200 W/(m-K) which most heatsink manufacturers do not use as it is "gummy" and difficult to work without a good process recipe. A <a href="https://www.lorithermal.com/extruded-heat-sink" rel="noopener noreferrer" target="_blank"><strong>Extruded heatsink</strong></a> is suitable for high volume production as it has a relatively low NRE. The molds are typically made with machine, and the Tooling lead time is typically 4-6 weeks. The most cost effective when post machining is not required as additional CNC machining may relive the stress, causing misshape. This can be minimized by special thermal treatment to limit failures due to stress. Extruded Heatsinks offer both thin fins, and aspect ratios of ~8:1 which offers optimal heatsink performance. These high aspect ratio heat sinks from Lori are ideal for applications where there is adequate airflow to take optimum advantage from these designs, which can be customized for different application requirements at Lori’s manufacturing facilities.</p>