Tyshchenko A. Electromagnetic method and device for control of the depth of the mechanical strength of metallic cylindrical products

Investigation object - the process of the interaction of electromagnetic fields with a metal cylindrical object controls to obtain information about the depth of the hardened layer. Objective: development of a method and device for control the depth of the hardened layer of metallic cylindrical products. Methods and apparatus: analytical methods for solving the problems of electrodynamics of continuous media, numerical linear algebra, methods of differential and integral calculus, elements of the theory of probability and mathematical statistics. Theoretical and practical results: the layout of eddy current device was designed for the control of surface hardening of metal products, which allows solving the problem of increasing the reliability of controlling the depth of the hardened layer of electrically conductive materials and products. Novelty: the non-contact eddy current method was designed for the control of the depth of surface hardening of metallic cylindrical objects, the essence of which is to compare the output signals of the converter with the object of control with a pre-calculated outputs for a given depth of hardening compared with the outputs signals of the eddy-current converter with a standard sample, the depth of the hardened layer which corresponds to a predetermined value in real time. Degree of implementation: implemented in PE "DDP" Nikolaev for non-contact control of the depth of the hardened layer of metallic cylindrical products and in the educational process of department. Scope: results are used for machine building and aerospace industries.