engleski

Numerical Design of a Hot-stretch-reducing Process for Welded Tubes

During stretch reducing, steel is submitted to complex stressing and straining processes. This paper gives a theoretical model of a heat- stretch-reducing precess for the relation between the tube diameter and the wall thickness. The design is verified by a determination of the number of revolutions of rolls with every caliber for specific tubes on an industrial mill. The control of the rolled- tube dimensions confirmed the aauracy of the design.

hot-stretch reducing ; welded tubes ; numerical model of design ; calibrate ; coefficient of plastic extension of the steel

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