Roll welding, a subset of solid-state welding, is a process where two or more metal parts are joined together by passing them through a pair of rollers under sufficient pressure to cause coalescence. Heat is generated through the mechanical pressure applied, which, along with the deformation at the weld interface, results in a bond at room or slightly elevated temperatures without the melting of the base materials. This technique is particularly effective for joining dissimilar metals and is commonly used in manufacturing processes for creating bimetallic strips, sealing bands in packaging, and other applications where a continuous weld along a seam is beneficial. Roll welding offers advantages such as high production rates, minimal material distortion, and the ability to weld materials that are difficult to join using traditional fusion welding methods.