Elements of Indium by Indium Corporation: Cold Welding

Cold welding is done by applying enough pressure to break the oxide surface which leads to adhesion. This means an instant attachment can be created in just fractions of a second with bare minimum pressure and will last indefinitely. Because of its unique properties, indium can cold weld to itself effortlessly.

Cold welding indium to indium produces a clean, efficient bond that doesn’t change the properties of either piece of metal. When using techniques such as ultrasonic and laser welding, the properties can sometimes change. Higher purity, oxide-free indium wires can create a strong bond that will remain solid up to 157°C. An indium, cold-welded bond can also endure cryogenic temperatures while maintaining excellent thermal and electrical properties.

Indium Corporation is a global leader for indium metal and associated technologies.