Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52430#.VJi6ucCAM4 Author(s) Tatjana V. Brovman * Affiliation(s) Tver State Technical University, Tver, Russia . ABSTRACT Nowadays, thin-walled super-diameter pipes are produced by the method of plastic bending of sheets. After a sheet is bent into a pipe and its ends are welded, a pipe billet is subjected to expansion deformation. The technology of forming end areas of a sheet is developed and formulaes forming forces equations are deduced. Experimental investigations of deformation are undertaken. KEYWORDS Plastic Deformation , Bending of Billets , Calculation of Forming ...
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