How The LED Heat Sinks Are Made?

LED heat sinks are manufactured using a variety of metal forming methods including die casting, forging, extrusion, machining, stamping, stripping and bonding. The most common methods are casting, cold forging, extrusion and stamping.

Die casting LED heat sinks are made by pressing molten aluminum into a metal mold, which is hydraulically locked. Therefore, heat sinks can be made in many different shapes. Textured and friction surfaces can be easily produced using die casting techniques. Die casting is the most efficient and cost-effective mass production process for LED heat sinks. Therefore, the heat sinks of many lighting fixtures are produced by the casting method.