Ultra-Jet Diagnostics of the Quality of Welds

A new method of evaluating quality parameters of welded joints is proposed in the article. In particular, the method deals with impact fracture toughness and is based on the impact that a high speed water jet has on the surface of the controlled object. Geometrical characteristics of the formed hydro cavity serve as informative attributes. The article presents some of the results of the experiments that demonstrate the capabilities of assessing homogeneity of the weld seam using ultra-jet diagnostics. It shows the dependence between the depth of the hydro cavity formed after the ultra-jet impact and the hardness, impact viscosity of the weld material. The data obtained lead to the conclusion that the proposed technology can take its rightful place among the information and diagnostic tools used when maintaining objects with welded joints.

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