Evaluating the Efficiency of Using Ultraviolet Radiation Sources in Carrying Out Fluorescent penetrant Testing

Abstract A comprehensive approach is proposed for evaluating the effectiveness of various sources of ultraviolet radiation used in the fluorescent penetrant method of nondestructive testing. The spectral characteristics of the radiation of modern domestic and foreign UV irradiators used in the testing of parts and assemblies of aviation equipment in the aviation industry are given. The main parameters that allow the most complete assessment of ultraviolet sources for compliance with the requirements of domestic and foreign regulatory documents on the energy characteristics of sources at the stage of inspection of the technological process of capillary control are determined. The influence of the use of UV sources of various types on the results of testing samples and parts with different design features containing manufacturing and operational defects of various sizes is shown. It has been established that the characteristics specified in their technical documentation (passports) are not sufficient for a flaw detector operator to evaluate various UV irradiators. This approach will allow one to evaluate and select modern sources of UV radiation, taking into account the requirements of standards in force at enterprises.