Abstract—This article presents the research results aimed at  solving the problem of ensuring the hardness of welded  surfaces after a machining treatment. Two methods of the  thermal friction milling are proposed as a mechanical  treatment – a traditional thermal friction milling and a  thermal friction milling with a pulse cooling. For the  experimental research the planning of experiment was  carried out and the necessary number of the carried-out  experiments was determined. For a processing were  prepared special samples with a welded layer of the welding  material, which is used in the production of LLP "Electric  locomotive assembly factory" (Nur-Sultan, Kazakhstan).  The results of the experimental studies have shown that  both methods of the thermal friction milling provide an  increase in the hardness of the welded surface. The influence  of the milling modes on the hardness of the machined  surface was also investigated. Optimal values of the milling  modes, which provide an increase in the initial hardness of  the machined surface, were established. Simulation of the  process of the thermal friction milling modes and analysis of  the achieved hardness of the machined surface were  performed. 

Index Terms—thermal friction milling, pulse cooling,  hardness, welding material, wear, repairing 

Cite: Karibek Sherov, Isa Kuanov, Yernat Imanbaev, Medgat Mussayev, Nurgul Karsakova, Bakhtiyor Mardonov, and Lutfiddin Makhmudov, "The Investigation and Improvement of the Hardness of the Clad Surface by Thermal Friction Milling Methods," International Journal of Mechanical Engineering and Robotics Research, Vol. 11, No. 10, pp. 784-792, October 2022. DOI: 10.18178/ijmerr.11.10.784-792

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