<p>The article presents the results of modeling the combined rolling-extrusion (CRE) process for producing wire rod from medium-strength aluminum alloys, which is used to produce wire widely used in welding structural materials in construction. The analysis is carried out and the advantages of the CRE method are revealed compared to traditional rolling and extrusion technologies based on casting, rolling, and extrusion operations. The heating temperature of the workpiece was taken equal to 430 ± 10&#xa0;°C; the initial temperature of the tool was 20&#xa0;°C; the temperature at the exit from the matrix was 450 ± 10&#xa0;°C. Values of the forces acting on the rolls and the die and the torques on the rolls were calculated. The simulation showed that the force acting on the rolls does not exceed 2150 kN, and the force acting on the die is 810 kN. The maximum torque is realized on a roll with a groove and does not exceed 250 kNm. Based on the obtained torque values, the powers of the drive motors of both rolls were calculated at different speeds of their rotation, and it was found that they do not exceed the permissible values for a CRE unit. Thus, the conducted simulation of the CRE process made it possible to establish temperature modes for processing medium-strength alloys under specified deformation-speed conditions of the CRE process, as well as to determine the energy-power loading and power of the drive motors of the new industrial CRE unit for producing wire rod from these alloys.</p>

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Analysis of deformation modes and energy-power parameters of combined rolling-extrusion in the production of wire rod from 5XXX series alloys

  • Aleksandr Vladimirovich Salnikov,
  • Sergey Borisovich Sidelnikov,
  • Denis Sergeevich Voroshilov,
  • Ekaterina Sergeevna Lopatina,
  • Andrey Vasilyevich Parubok

摘要

The article presents the results of modeling the combined rolling-extrusion (CRE) process for producing wire rod from medium-strength aluminum alloys, which is used to produce wire widely used in welding structural materials in construction. The analysis is carried out and the advantages of the CRE method are revealed compared to traditional rolling and extrusion technologies based on casting, rolling, and extrusion operations. The heating temperature of the workpiece was taken equal to 430 ± 10 °C; the initial temperature of the tool was 20 °C; the temperature at the exit from the matrix was 450 ± 10 °C. Values of the forces acting on the rolls and the die and the torques on the rolls were calculated. The simulation showed that the force acting on the rolls does not exceed 2150 kN, and the force acting on the die is 810 kN. The maximum torque is realized on a roll with a groove and does not exceed 250 kNm. Based on the obtained torque values, the powers of the drive motors of both rolls were calculated at different speeds of their rotation, and it was found that they do not exceed the permissible values for a CRE unit. Thus, the conducted simulation of the CRE process made it possible to establish temperature modes for processing medium-strength alloys under specified deformation-speed conditions of the CRE process, as well as to determine the energy-power loading and power of the drive motors of the new industrial CRE unit for producing wire rod from these alloys.