Actual Problems in Machine Building 2015 No. 2

Актуальные проблемы в машиностроении. 2015. №2 Технологическое оборудование, оснастка и инструменты ____________________________________________________________________ 293 2. Булычев В.В., Латыпов Р.А. Оценка прочности соединения однородных металлов при электроконтактной приварке // Сварочное производство. – 2012. – № 6. – C. 120-127. 3. Абашин М.И., Барзов А.А., Бочкарев С.В., Галиновский А.Л., Маслов Б.Г. Приме- нение ультраструйной диагностики для оценки качества сварных швов // Сварочное произ- водство. – 2014. – № 9. – C. 57-62. 4. Polyakov V.V., Dmitriev S.F., Ishkov A.V., Kolubaev E.A., Malikov V.N. Non- desructive testing of aluminium alloys by using miniature eddy-current flaw transducers // Ad- vanced Materials Research. – 2014. – Vol. 880. – P. 105-108. 5. Дмитриев С.Ф., Маликов В.Н., Ишков А.В. Сверхминиатюрные вихретоковые пре- образователи для задач неразрушающего контроля неферромагнитных материалов // Изве- стия ВУЗов. Физика. – 2012. – № 9/2. – C. 157-160. 6. Dmitriev S.F., Ishkov A.V., Malikov V.N., Sagalakov A.M. Subminiature Eddy Current Transducers for Studying Metal-Dielectric Junctions // Instruments and experimental techniques. – 2014. – Vol. 57. – No. 6. – P. 751-754. 7. Дмитриев С.Ф., Ишков А.В., Сагалаков А.М. «Устройство для обнаружения дефек- тов малых линейных размеров» // заявка на патент №2014120032. – 19.05.2014. EDDY-CURRENT DETECTION OF TITANIUM ALLOY WELDS Dmitriev S.F. 1, 2 , Ph.D. (Engineering), Associate Professor, e-mail: dmitrsf@mail.ru Katasonov A.O. 1,2 , Engineer, e-mail: ivenir4000@gmail.com Malikov V.N. 1 , Ph.D. student, e-mail: osys@me.com Sagalakov A.M. 1 , D.Sc. (Engineering), Professor, e-mail: amsagalakov@mail.ru Shevtsova L.I. 3 , Ph.D. student, e-mail: edeliya2010@mail.ru 1 Altai State University, 61 pr. Lenina, Barnaul, 656049, Russian Federation 2 Ltd. "NPF" Gamma Test ", 61 pr. Lenina, Barnaul, 656049, Russian Federation 3 Novosibirsk State Technical University, 20 Prospect K. Marksa, Novosibirsk, 630073, Russian Federation Abstract Based on the eddy current transducer (ect) of the transformer type, an eddy current probe is developed to examine titanium plates joined by welding. The main specifications of the eddy current transducer (coil diameter and a core material of the wire) are given. The measurement procedure which makes it possible to test defects in titanium alloy welds is described. The concept of virtualized devices in which the eddy current transducer is controlled by a personal computer is used. The controlled parameter is the electric conductivity of the material and its distribution on the surface and across the thickness of the object. Experimental results obtained by the eddy current transducer using two welded titanium plates are presented. These results show the dependence of the response of the eddy current transducer on a defect in such structures. These dependencies help to determine the quality of the weld and to evaluate the reliability of welding. Keywords eddy current transducer, titanium, welds, nondestructive testing (NDT)