Bi-metallic lugs are a key component in contemporary electrical installations when copper and aluminium conductors need to be joined together. Lugs for this purpose are designed with an aluminium barrel and a copper palm, spliced together using friction welding for providing a corrosion-resistant and strong connection. The main motivation for the application of bi-metallic lugs is to ... https://www.pioneerpowers.com/bimetallic-lugs-and-connectors.php