With different parameters that have the greatest influence on the thickness of the recrystallization zone, we performed the forging from the EN AW 6082 alloy. During the hot forming process, the accumulation of dislocations, dynamic recrystallization and grain growth occur, which affects the size of the grains in the microstructure and, consequently, the material flow. Grain growth occurs during the hot deformation process and continues even after the completion of processing and recrystallization. The main aim of this thesis was to investigate which of the parameters, during the process of hot transformation, has the greatest influence on the thickness of the recrystallization zone, on the mechanical properties and hardness. Experiments were carried out on several forgings, where the cutting bullets were heated to different temperatures, at different times. They were exposed to repeated heating. The possible influence of cold or warm tools during forging was noted. With the simulation of the program Deform, we determined the areas where the greatest deformations occur. By measuring the thickness of the recrystallization zone, it was found that the optimal temperature in the furnace for heating the cutting bullets is between 520 °C and 550 °C. The optimal temperature of the tool is 190 °C. The temperature of the rolling stock before forging varies between 460 °C and 507 °C. The cutting bullets can be reheated to the desired temperature once. The homogeneous distribution of the microstructure and the homogeneous distribution of the fine secretions of the secondary phase have the greatest influence on the hardness. The highest values of mechanical properties are reached when the precipitates are transformed from coherent to incoherent. There is a tendency to grow a coarse-grained structure in the burr area and the area of large deformations. We attribute this to the consequence of a larger share of stored energy, which is generated during deformation. This was confirmed by simulation with the program Deform.
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