Abstract
Problem. A distinctive feature of this work is that it combines theoretical and experimental studies of electrodynamic processes in a tool for processing sheet metal materials. It was proposed to use the phenomenon of magnetic-pulse attraction when directly connecting the processed sheet metal to a source of electric current. The investigated tool was considered under conditions close to the corresponding real production operation. In earlier scientific publications, such a tool was called an instrument with direct current flow through the object being processed. Methodology. In this article, analytical expressions were obtained for the excited currents and forces of attraction by solving the boundary electrodynamic problem, including the integration of Maxwell's equations. Results. The advantages of the low-frequency mode with intense penetration of fields through the conducting components of the system under study are illustrated by numerical estimates, in particular, it has been found that reducing the width of the main conductor of the inductor can significantly increase the energy characteristics of the system. According to the obtained ratios for currents and forces of attraction, the corresponding characteristics were calculated and the design of the operating experimental model of the magnetic-pulse device for the attraction of sheet metal with direct current transmission through the treated area was designed. Originality. It is shown that the dosed magnetic-impulse force action allows to control the deformation of sheet metal in the processing zone. It has been practically proven that the proposed technique can be very effective in the design of technological equipment used in the elimination of deformations both on steel objects and on aluminum objects. Practical value. Successful practical testing of the proposed tool was carried out in conditions close to real production.
Highlights
The attraction methods of defined areas of sheet metals using the energy of pulsed magnetic fields for different types of processing technologies are purchasing more relevant in different industries [1]
Special attention is paid to the development of the dent removal and leveling surfaces of sheet metals technologies during the restoration of aircraft hulls and car bodies
The suggestions of the leading European concern “Betag Innovation” and American industry companies such as «Boeing Company», «Electroimpact», Flextronics [3, 4] are meeting to this requirements [2,3,4]
Summary
The attraction methods of defined areas of sheet metals using the energy of pulsed magnetic fields for different types of processing technologies are purchasing more relevant in different industries [1]. Experimental approbation First of all, there should be underlined, that the represented experiments on the metal magnetic-pulsed attraction when direct hook-up to the electrical current source unlike the cited works [16, 17] were conducted in view of the new ground-works and experiences in a given scientific area It allowed moving from the first approbations of the action principle to experiments with an understanding of the physics of the processes and the specific recommendations development for the creation of equipment for the effective implementation of a given production operation. – іt has been found that magnetic-impulse attraction with "direct current flow" through the processed aluminum can be very effective when using the technological equipment that was used to deform steel
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
