Inventors:
Robert R. Hellman - Oxford CT
Peter J. Mullen - New Milford CT
International Classification:
B21C 3706
Abstract:
In a preferred embodiment, a method and apparatus for forming thin-wall tubing for later welding of the seam thereof which includes tightly rolling upon itself a sheet of thin metal stock about a roller between layers of a flexible fabric. When released from the roller, the sheet metal springs back to form a near-perfect tube without the kinks, scratches, and/or dents commonly caused by conventional rolling methods.