Diseño y construcción de un banco de pruebas de ensayos no destructivos para inspecciones mediante partículas magnéticas fluorescentes (MT) para el Laboratorio de materiales de la Carrera de Mecánica

Abstract

Nowadays, the importance of Non-Destructive Testing is reflected in the student field as well as in the educational module taught by the Mechanics career and its application in the national and international industry, a new NDT equipment was provided to the Materials laboratory of the career. For this purpose, an exploratory research was carried out in product data sheets and in the Standard Guide for Magnetic Particles Examination (ASTM E 709 - 21), the equipment was designed, on which the respective calculation and simulation was developed, obtaining a satisfactory modeling for its construction. For the construction of the equipment, processes such as: bending, turning, milling, drilling and SMAW welding were required, in steel A 500 Gr D and ASTM A 36. Regarding the design and construction of the transformer and magnetization system, the Standard Guide ASTM E1444 -15 and ASTM E 709 - 21 were used, establishing a maximum amperage of 1200 A for the Circular and Longitudinal magnetization techniques. Once the construction process of the test bench was completed, its operation was tested by means of its use, in the inspection of several types of specimens by the Circular Magnetization and Longitudinal Magnetization techniques, under the application of the dry and wet fluorescent method. Finally, a manual for the use of the equipment and the development of an instruction manual for the use, storage and maintenance of the suspension of oilbased fluorescent magnetic particles, which is mainly used by the test bench equipment for the development of the inspections, were elaborated.