A new way of repairing and strengthening sheet steel parts that are have abrasive wear during operation

Abstract

The article describes a technical solution that relates to the field of mechanical engineering and repair of machines, in particular to the restoration and simultaneous strengthening of steel sheet parts, which, depending on the conditions of external influence, various types of abrasive wear. The method involves removing the worn part of the workpiece and replacing it with a separate segment. The segment is also made of sheet material, and connect it to the recoverable part with an integral connection. According to one variant of the technical solution, the segment has a pre-made groove, which is attached to the recoverable part with a pre-made thorn. Strengthening of the recovered part is carried out by the method of electro-erosion alloying (EEA) to achieve the desired hardness of the segment. Before creating an integral connection of the recoverable part and the surface of the groove surface of the segment is covered with metal-polymer material (MPM). According to the second variant of the technical solution, the segment has a pre-made thorn, and the recoverable part is a groove. The technical result of the solution is the absence of grooves, as well as improving the hardness and wear resistance of the recovered and hardened parts in the conditions of intensive abrasive wear, the ability to use as a reducing material wear-resistant metals with any degree of weldability, low energy consumption and environmental safety.