Purpose. The description of the Equipment for the Magnetic-Pulsed Attraction (or EMF-attraction) of the sheet metals which allows non-contact deforming of ferromagnetics (the low carbon steels, for example), the non-magnetic billets from aluminium alloys and the practical realization of the new advanced technologies in the modern processing manufacture. Methodology. Comparative analysis of characteristics and operating conditions of the systems under consideration. Results. Physically, all magnetic-pulsed methods of attraction are based on the Lorentz repelling forces decreasing and on increasing the attracting forces when the sheet billets being deformed are transparent for the low working frequency acting electromagnetic fields. The ferromagnetic samples attraction is caused by their magnetic properties. For the non-magnetic metals attraction an accessory conducting screen is being introduced in construction of the inductor system which is the method tool. In this case the attraction effect is caused by the force interaction of the unidirectional currents induced in the screen and in sheet billet. The different constructions of the attracting tools attended for fulfilling the different production operations (for example, it can be stamping, flattening etc.) with metals owning by different electrophysical properties are represented. Originality. The novelties in the magnetic pulsed installations used as the power sources in the complex equipment for the automobile bodies repair are given. Practical value. The practical application of the elaborated systems for the dents removing in the sheet metals are suggested and successfully approbated. In the whole these works can be considered as new scientific direction and used for different manufacturing aims though the main attention is paid to the practical application in the field of the automobile bodies repair. The most part of the described inventions is defended by the Ukrainian Patents (23 from total quantity-33 References) and little known to the west specialists in the area of the magnetic pulsed technologies. From the authors view point this is a main particularity and usefulness of the present paper. References 33, figures 11.

Purpose. The electrodynamics processes study in the linear tools of magnetic-pulsed attraction, the final result of which should be the physics-mathematical dependencies for the characteristics of the flowing processes, under the conditions of intensive penetration in metal of acting electromagnetic fields, as well as numerical estimates of these processes main characteristics. Methodology. To carry out research, we used the fundamental statements of the electromagnetic field theory and the mathematical simulation with help of the standard codes from the Wolfram Mathematica package. Results. The functional dependencies for the space-temporal distributions of the currents and forces excited in the linear tools of magnetic-pulsed attraction under intensive penetration of the acting electromagnetic fields through the tool's conducting construction elements are used for the numerical estimates. From the calculation results it follows that from a physical point of view, the cause of the increase in attractive forces while decreasing the operating frequencies can be considered the intensification of penetration processes of the excited fields, which leads to increasing the magnetic pressure from the outside. Thus, the transition to low operating frequencies of the exciting currents can significantly increase the efficiency of the magnetic-pulsed attraction of the sheet metals with the linear tools. Originality. It was firstly determined that from the physical point of view, the reason for the increase in attractive forces with a decrease in operating frequencies can be considered the intensification of penetration processes of the excited fields, which leads to increasing the forces of magnetic pressure on the conductors from side of their external surfaces. Practical value. A usage of the obtained results will allow creating new, more efficient linear tools of magneticpulsed attraction of the low-electrical conduction sheet metals operating under conditions of intensive penetration of the electromagnetic fields being excited. References 10, figures 9.

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The technologies used in repair of vehicles were analyzed in the given paper. The shortcomings of the mechanical repair methods in question can be solved by using induction heating. Analysis of the stages of development and implementation of induction heating in industries showed effective performance of this technology and its opportunities for further improvement. An alternative repair technique, which consists in using induction heating, was proposed.

Purpose. The purpose of the present work is substantiating workability of the linear tools of the magnetic-pulse attraction of thinwalled sheet metals with high electrical conductance, the principle of which is based on the force interaction of two conductors with unidirectional currents during intensive penetration of the acting electromagnetic fields. Constructively, one of these conductors in the linear tools is the so-called main current lead (an analog of the inductor in EMF) and the second one is the part of the sheet metal which has to be deformed. Methodology. For numerical estimates the analytical dependences are obtained with help of the methods of electromagnetic field theory as well the standard programs from the Wolfram Mathematica package used. Results . The fulfilled calculations illustrate the amplitude-temporal dependences for the excited currents and forces under the demanded decrease of the operating frequencies of the acting electromagnetic fields. The efficiency of the linear magneticpulse tools is based on the excitation of the mutual attraction forces of conductors with low-frequency unidirectional currents. Originality. By the example of aluminum, which is the main raw material in modern aviation and automotive industry, it has been found that for processing the metals with high electrical conductance demand a significant decreasing operating frequencies, what is necessary for intensifying the penetration processes of acting fields and, accordingly, for exciting the real attractive forces. Practical value. The results of the work allow formulating the based recommendations for the creation and practical application of the linear magnetic-pulse attraction tools for the progressive technologies of restoring the damaged areas of bodies coatings from the thin-walled sheet metals with the high specific electrical conductivity. References 10, figures 4.Key words: metals with high electrical conductance, intensive field penetration, magnetic-pulse attraction of conductors with unidirectional currents, linear tools for eliminating dents in body coatings.