Method of making a coaxial cable including tubular bimetallic inner layer with folded over edge portions

A method for making a coaxial cable comprising an inner conductor, and an outer conductor spaced from the inner conductor, the method comprising:

• forming the inner conductor by at least
• forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam and comprising an inner metal layer and an outer metal layer bonded thereto, each of the longitudinal edge portions being folded,
• shaping each of the folded longitudinal edge portions,
• forming a welded joint between adjacent portions of the shaped folded longitudinal edge portions and defining surplus material at the welded joint, and
• skiving the surplus material at the welded joint;
• and
• forming the outer conductor spaced from the inner conductor.

A method for making a coaxial cable comprising an inner conductor, and an outer conductor spaced from the inner conductor, the method comprising:

• forming the inner conductor by at least
• forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam and comprising an inner metal layer and an outer metal layer bonded thereto, each of the longitudinal edge portions being folded,
• forming a welded joint between adjacent portions of the folded longitudinal edge portions and defining surplus material at the welded joint, and
• removing the surplus material at the welded joint;
• forming the outer conductor spaced from the inner conductor;
• forming a dielectric material layer filling the tubular bimetallic layer;
• and
• forming an insulating jacket surrounding the outer conductor.