INVESTIGATION OF THE WELDED LAYER HARDNESS AT RESTORATION OF ELECTRIC MOTOR SHAFTS

  • Olga Zharkevich Abylkas Saginov Karaganda Technical University, Faculty of Mechanical Engineering, Department of Technological Equipment, Mechanical Engineering and Standardization, Karaganda, Kazakhstan
  • Oxana Nurzhanova Abylkas Saginov Karaganda Technical University, Faculty of Mechanical Engineering, Department of Technological Equipment, Mechanical Engineering and Standardization, Karaganda, Kazakhstan
  • Adelia Mukhitova Abylkas Saginov Karaganda Technical University, Faculty of Mechanical Engineering, Department of Technological Equipment, Mechanical Engineering and Standardization, Karaganda, Kazakhstan
  • Irina Teliman Abylkas Saginov Karaganda Technical University, Faculty of Mechanical Engineering, Department of Technological Equipment, Mechanical Engineering and Standardization, Karaganda, Kazakhstan
  • Yelena Naboko Abylkas Saginov Karaganda Technical University, Faculty of Mechanical Engineering, Department of Nanotechnology and Metallurgy, Karaganda, Kazakhstan
  • Oleg Stukach National Research University Higher School of Economics, Faculty of Electronic Engineering, Department of Electronic Engineering, Moscow, Russia
  • Boris Moyses Tomsk Polytechnic University, Faculty of Control Systems and Robotics, Department of Control and Diagnostics, Tomsk, Russia
DOI: https://doi.org/10.5937/jaes0-55948
Keywords: hardfacing, hardness, voltage, current, wire feed rate

Abstract


The article is devoted to studying the influence of wire feed rate on the hardness of the welded layer during the restoration of electric motor shafts. The authors analyze the importance of optimal hardness to ensure the durability and reliability of the reconditioned parts. The paper considers various factors affecting the hardness of the welded layer, such as type of welding wire (AWS A5.18 ER70S-6, OK Tubrodur 35 G M, AWS A5.28 ER80S-G); cladding modes (feed rate, current, voltage); properties of the welded clad metal (fusion with the base, tendency to crack formation). Based on the conducted experiments, the optimal welding modes for each of the studied wires and the corresponding hardness values were determined. The obtained results allow us to conclude that the wire feed rate is one of the key parameters affecting the hardness of the welded layer.

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Published
2025/06/16
Issue
Vol. 23 No. 2 (2025): Journal of Applied Engineering Science
Section
Original Scientific Paper