Integrated post-weld knurling process and device for performing the same

A drive shaft assembly comprising:

• a first drive shaft component, and
• a second drive shaft component welded to the first drive shaft component at a weld joint interface, wherein a weld curl is formed at the weld joint interface when the second drive shaft component is welded to the first drive shaft component, and wherein a portion of an outer surface of the drive shaft assembly corresponding to the weld curl is plastically deformed following completion of the formation of the weld curl, wherein the weld curl projects radially outwardly, wherein the weld curl being plastically deformed includes the weld curl being plastically deformed radially inwardly, wherein the weld curl being plastically deformed radially inwardly includes the weld curl being compressed radially inwardly, and wherein the weld curl being compressed radially inwardly includes the drive shaft assembly being rolled relative to at least one surface engaging the weld curl.