Abstract
Much of the copper and copper alloy tube now manufactured is produced from strip by welding, followed by drawing, In this paper are reported the results of an investigation into producing tube by longitudinal TIG and induction welding and subsequent treatment. Five tube materials were used: commercially pure copper, phosphorus-deoxidized copper, Cu- 30Zn, Cu 37Zn, and Cu 1ONi. Microstructural examination and mechanical and corrosion testing showed that it is possible to produce welded tubes of a quality comparable to tubes produced by extrusion, provided that the welding, drawing, and heat treatment are carried out correctly.
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