The research problem focuses on the wires made of aluminum alloys acquired in the wire drawing process of the wire rod obtained using the Continuus Properzi method. The nature of the drawing process generates a heterogeneity of strain on the wire cross-section, which results in the formation of internal stresses. The result of drawing round wires is a parabolically shaped internal stress distribution: tensile stresses around the surface and compressive stresses around the axis of the wire.The aim of the work was to empirically determine the distribution of internal stresses in the wires made of aluminum alloy EN AW 6101 (AlMgSi) obtained in various conditions. The internal stresses were determined through the surface treatment method. In order to achieve that, after proper preparation of the wire samples, their surface was pickled using a 50 % NaOH solution. After stabilization of the thermal state, changes in length were investigated. Parallel to the internal stress tests, the macroscopic properties were characterized in a uniaxial static tensile test.Keywords: Internal stresses, residual stresses, wires, AlMgSi alloy, EN AW 6101
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