High-velocity impact welding of samples using gas gun

Cold welding, also known as pressure welding or solid-state welding, refers to a process of creating a firm bond between two metal surfaces by applying sudden pressure without the need for external heat. As a result, atoms on the metal surfaces can diffuse and create a strong metallurgical bond between the two metals. The main goal of this proposal is to study and understand how the welding of assemblies produced by high-velocity welding occurs at different strain rates (i.e., impact velocities) and various dynamic collapse angles. We aim to study the fundamental aspects of jet formation and surface states during such welding scenarios in order to correlate them with the quality and state of the weld, resulting in improved cold-welding methods and parameters for future work.