Spring Can Welding Machine is a multipart spring-loaded assembly having a housing, plunger, spring and end cap is friction welded by holding the housing in a rotating chuck while putting a preload on the plunger and spring to prevent them from coming into contact with the spinning housing member during the process of chucking the end cap in a stationary welding operation. Spring Can Welding Machine has a high carbon content, which means it has a higher tensile strength than mild steels or stainless steels.