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The paper concerns the evaluation of the formability of sheet metal by means of the cylindrical cup drawing test, which belongs to the imitation tests of the formability of sheet metal, and the influence of individual factors on the results of drawing. Experimental drawing of cylindrical stampings from a set of blanks from Cu-ETP (also known as conductive copper) sheet with a circular element deformation network was carried out using a special jig in the Department of Mechanical Technology, Faculty of Mechanical Engineering, VSB - Technical University Ostrava. Tensile tests of test bars made of Cu-ETP material were carried out to determine the directional and average values of mechanical properties as well as unconventional formability criteria, i.e. the strain hardening exponent and directional values of the plastic anisotropy coefficient. The experimentally obtained drawing results were verified in the PAM-STAMP 2022 CAE programme. Using simulations and subsequent analysis of the formability of cylindrical stamping using the forming limit diagram of the Cu-ETP material used, the effects of various factors on the results of the cylindrical cup drawing test were evaluated, which include blank material, sheet thickness, magnitude of holding force, lubrication, and radius of curvature of the punch drawing edge.
Keywords: Cylindrical cup, drawing test, formability, sheet metal, forming limit diagram© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.