METHOD FOR INCREASING THE STRENGTH OF A COATED PART Russian patent published in 2022 - IPC B24B39/00 C21D7/04 C21D8/00 B23P25/00 

FIELD: coated part strength increasing.

SUBSTANCE: invention relates to a method for increasing the strength of a coated part. An intermediate adhesive layer is applied between the surface of the part and the coating, followed by processing the part by heating the surface of the coated part with high-frequency currents until the melting temperature is reached throughout the entire thickness of the intermediate adhesive layer and holding at this temperature until the intermediate adhesive layer is completely melted. Surface-plastic deformation is carried out after complete melting of the intermediate adhesive layer in the radial direction at a pressing force of 3100-5000 N at a speed of movement of the deformation spot of the deforming element during longitudinal feed. The longitudinal feed rate is equal to the speed of movement of the part relative to the inductor, which provides processing of the entire heated surface during the exposure time.

EFFECT: adhesion strength between the surface of the part and the coating is increased, residual stresses and defects along the coating-substrate interfaces are reduced, and the cohesive strength is also increased.

2 cl, 3 tbl, 1 ex