Tubes and structures formed thereby

B - Operations – Transporting – 21 – C

Patent

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26/18

B21C 37/00 (2006.01) B21C 37/29 (2006.01) B23B 5/16 (2006.01) B23K 7/00 (2006.01)

Patent

CA 1045355

ABSTRACT OF THE DISCLOSURE Method and apparatus for shaping ends of tubes which are to be welded to a curved convex or concave surface of a further body. The tube contacts said curved surface so that a notional line in the profile end face of the tube corresponds to a theoretical line of contact for fitting the end face to said curved surface in substantially comple- mentary relationship and at the predetermined angular relationship. A bevel surface extends between the profile end face of the tube and its outer peripheral surface.

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