Cold Forging Heat Sink
Cold forging is a precision cold working process where aluminum or copper is pressed into a closed die, shaping the heat sink to match the die cavity. This method, also known as cold heading, delivers superior thermal performance by increasing surface area and enabling more efficient heat dissipation. Compared to extrusion, cold forged fins can be made straighter and thinner, allowing for higher fin density and better cooling efficiency. The process also refines the metal grain structure under high pressure, further enhancing thermal conductivity. In addition, fins can be formed into elliptical or circular shapes, enabling optimized airflow from multiple directions—a major advantage in compact or high-demand applications.

Applications and Advantages
Cold forging heat sinks are widely used in high-power electronics, LED modules, multi-chip systems, and other performance-driven applications. They provide an effective balance of cost-efficiency and thermal performance, making them a reliable choice for many industries. While forged heat sinks may have some design and airflow limitations compared to bonded or skived fin solutions, they remain a proven, cost-effective, and versatile option. As a professional heat sink manufacturer, we offer customized cold forging heat sinks to meet your specific design, cooling, and performance requirements.