Abstract
Heavily loaded frame structures of transport vehicles, such as railway locomotives or road trains, are exposed to high stresses in the areas of welded joints. Fatigue accumulation of damage leads to cracking along the welds, which necessitates machining of the welds and strengthening of individual sections. The seam processing technology and hardening treatments depend on a large number of factors, the accounting of which is an urgent scientific problem. This article discusses a frame structure of channels connected by manual arc welding. The fusion and heat-affected zones are hardened by the impact action of a rod with a spherical head. The contact interaction between the impactor and the frame is analyzed numerically using the FEM method. The numerical analysis results in the form of fields of stresses, deformations, and displacements made it possible to choose rational modes of indentation and processing.
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