Brazing of 6061 Series Large Aluminum Water-Cooled Plates

Normantherm
February 27, 2026

Vacuum brazing of 6061 series large aluminum water-cooled plates is a proven manufacturing process for high-power thermal management systems. 6061 aluminum offers excellent thermal conductivity strong mechanical properties good corrosion resistance and outstanding machinability making it ideal for large cooling plates with complex internal flow channels.

During vacuum brazing precisely machined aluminum plates and cover sheets are assembled with aluminum-based filler alloys and heated in a high-vacuum furnace. The oxygen-free environment prevents oxidation and eliminates the need for flux ensuring clean seams and uniform metallurgical bonding. The molten filler flows through capillary action forming strong leak-free joints across the entire cooling structure.

The finished 6061 aluminum water-cooled plates deliver efficient heat dissipation high structural integrity and reliable pressure resistance. They are widely used in power electronics semiconductor equipment energy storage systems laser devices and other high-power applications where stable cooling performance and long service life are essential.