Numerical Simulations of Longitudinally Rolled Plates with Artificially Introduced Defects

Martin Vlado, Miloslav Lupták, Marta Harničárová, Jan Valíček, Milena Kušnerová, Róbert Bidulský, Róbert Kočiško

Numerical Simulations of Longitudinally Rolled Plates with Artificially Introduced Defects

Číslo: 3/2019
Periodikum: Hutnické listy

Klíčová slova: numerical simulations; surface and subsurface defects; hot rolling; cold rolling

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Anotace: The paper presents numerical simulations of a longitudinal rolling process of the flat sheets with artificially introduced

defects. The primary goal of the rolling process consists in ensuring production of a correct profile, free of defects, with
good surface quality. The simulations were made in the DEFORM complex program. Low carbon steel grade S690Al
was the target material used in this investigation. Defect formation is one of the problems that might occur during the
rolling process. Defects of hole type (on the surface and below the surface) and U- and V-notch types were introduced
to a steel specimen. The processes of longitudinal hot rolling and cold rolling processes were simulated on such
prepared material. During the simulation process, the effect of heat-deforming parameters on the behaviour of different
types of defects was observed.