The aluminum heatsink used in LED Lighting

Extruded aluminum heatsinks and die-casted aluminum heatsinks are commonly used in LED lighting. Generally, designers will design structures according to the shape and heat dissipation requirements of the lighting. However, the two types of heatsinks have their advantages and disadvantages, which can be analyzed from different perspectives. The specific production mode and requirements of each lighting manufacturer are different. It cannot be simply assumed that a certain type of heatsink must be the best choice. In some cases, extruded aluminum heatsinks are the best, and in some cases, die-casting aluminum heat sinks are better. The best heatsink is determined by the actual structure of the new product. Lighting with complex shapes should be designed as a one-time die-casting structure. On the contrary, the shape is relatively regular and the products with good symmetry can use the extruded structure.

 

From the analysis of material composition and mechanical properties, the strength of 6063 alloy is higher than that of die-cast aluminum ZL102, and the thermal conductivity of die-cast aluminum ZL102 is relatively small, so 6063 alloy has a significant heat dissipation effect. The price of die-casting tooling die is high, and the price of extrusion die is lower. If there’s an existing die for extrusion, that would be best. <a href="https://tinyurl.com/fonnov">FONNOV ALUMINIUM</a> has hundreds of existing heatsink extrusion tooling, this can save the tooling cost. The price of die-casting aluminum process is relatively cheap, and the price of the aluminum extrusion process is correspondingly more expensive. Compare and select suitable production methods according to the shape and quantity of heatsinks. In terms of specific use, it is necessary to consider various factors, comprehensively judge, and minimize the cost of new products, including production costs, mold costs, etc., and choose a suitable structure while meeting the environment and safety of the lighting. There is no worst and no best. The key is that the structure selection requirements are reasonable.