RUSZ Stanislav VSB-Technical University of Ostrava

Spoluautoři RUSZ Stanislav, ČÍŽEK Lubomír, DONIČ Tibor, SALAJKA Michal, TYLŠAR Stanislav, J. KEDROŇ Jan, MICHENKA Vít

Increase of mechanical properties in sheets, obtained by multiple plastic deformation is very important for final manufacture of machine parts produced from such blanks. At the VŠB - Technical University of Ostrava, Faculty of Mechanical Engineering special equipment DRECE (Dual Rolls Equal Channel Extrusion) was developed, which uses the principle of severe plastic deformation for refining of structure. This device is unique in Europe, since the process of structure refining in flat blanks is ate present still under development. The paper analyses the influence of number of passes through the DRECE tool on the achieved mechanical and forming parameters in two types of low carbon steel. Dynamic tensile tests on the plastometer ROTO were used for evaluation of the obtained mechanical properties, and test of suitability for deep drawing according to Erichsen a Fukui were used for verification of formability.

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