What Are Cold Welds?

Cold welding or contact welding is a solid-state welding process in which joining takes place without fusion or heating at the interface of the two parts to be welded. Unlike in fusion welding, no liquid or molten phase is present in the joint.

What are cold welds in physics?

Cold welding is a bonding process during which two solids are forced to form a single piece by applying adequate pressure. ... The necessary force for the adhesion is applied through mechanical rolls and dies. Cold welding is also known as contact welding.

Is cold welding a strong weld?

Cold welding can offer clean welds that are at least as strong as the weakest of the parent materials. This welding process doesn't form brittle intermetallic compounds at the join.