Aluminium brazing FCWAl-Cu (Aluminium to Copper) brazing flux-cored wire is a specialized brazing wire used for joining aluminum to copper. It consists of an aluminum alloy outer sheath with a core filled with a flux mixture that helps improve the bonding process by cleaning oxides and ensuring proper wetting during brazing. The flux eliminates the need for separate flux application, streamlining the process and ensuring a strong, corrosion-resistant bond between dissimilar metals, like aluminum and copper, which have different melting points and thermal properties. It’s commonly used in HVAC systems, electrical components, and automotive applications.