Method and apparatus for manufacturing hollow tubular members

Details Method and apparatus for manufacturing hollow tubular members Method and apparatus for manufacturing hollow tubular members

B - Operations, Transporting

21

C

26/155

B21C 1/22 (2006.01) B21C 23/26 (2006.01) H01B 13/00 (2006.01) H01B 13/22 (2006.01) H01B 13/26 (2006.01)

Patent

CA 1276437

Abstract There is disclosed a method and apparatus for adjusting the thickness of a hollow tubular member to provide a cross-section of constant area , such adjustment being inversely dependent upon detected increases or decreases in the thickness of the metal strip. The method and apparatus provide for the formation and welding of a metal strip into a hollow tubular member; the application of longitudinally directed, braking or pushing forces to the hollow tubular member; and then the continuous reduction of the hollow tubular member to achieve a cross-section of constant area.

534755

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