Extruded heat sinks are also referred to as extruded aluminum heat sinks, heat sink extrusions, and heat sink with attractive appearances, light weights, and effective heat dissipation. In order to create the extruded heat sink material, the aluminum heat sink extrusion technique simply involves heating aluminum ingots to a temperature between 520°C and 540°C at a high temperature and under high pressure.
The extruded aluminum heat sink that we frequently see is then created by repeatedly cutting the heat sink extrusion material. Because it is simple to implement and equipment costs are inexpensive, aluminum heat sink extrusion technology has previously been widely used in the low-end market.
The aluminum heat sink material AL6063, which has good thermal conductivity and machinability, is frequently utilized. The heat sink's surface area is increased by these intricate fins, which also speed up and lower the cost of manufacturing aluminum blocks. Here we are going to provide a discussion relevant to heat sink extrusion and it’s certain types.
Types of Heat Sink Extrusion
Slant Fin Extrusions
Slant Fin heat sinks with high performance are offered for component sizes ranging from 10x10mm to 60x60mm. The height of the heat sink varies from 2 to 25 mm in 1 mm steps. For applications that will facilitate the handling of a wider fin-to-fin separation, the slant fin design offers more surface area and, consequently better performance. Slant Fin heat sinks are lightweight and have low thermal resistance from their base to their fins since they are made of extruded aluminum.
Extrusion Profiles
The most economical options for the majority of electronic cooling applications are extruded aluminum heat sinks. As the aluminum heat sinks are extruded they will give more advantages and their usage will be broadened. A wide range of aluminum profiles is given for use in the manufacturing of custom heat sinks and so many other things that will be handy.
LED Extrusion
STAR LED heat sinks are used all over the world as they save energy. Like any other semiconductor device the performance of an LED is temperature-dependent. Increasing temperatures shorten the LED's operational life and reduce its ability to emit light. Designers can cool LED lights for the best performance and efficiency with STAR heat sinks. To cool LED-based circular down lights and other comparable designs, a full line of high-performance cooling solutions is provided based on its proprietary maxi FLOWTM high-performance design.
Straight Fin Extrusion
Component sizes ranging from 10x10mm to 60x60mm can use Straight Fin extruded aluminum heat sinks. The range of heat sink heights is 2 to 25 mm in 1 mm steps. Due to their high aspect ratio, they have more fins per square inch than other types of heat sinks. Tall, straight fins with a narrow base area have better thermal performance and take up less room. Compared to other heat sinks (like copper), extruded aluminum decreases thermal resistance, lightens the load, and is less expensive.
Final Reflections
The most popular type of heat sink now utilized for thermal control is extruded. To create the final shape, heated aluminum billets are forced through a steel die during manufacturing. Although 6063-T5 is the most typical aluminum alloy, additional 6XXX alloys can also be evaluated if needed. Hope that after reading this article your information will be enhanced.
