1 Moravec Ján
1 University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Univerzitná 8215/1, 010 26 Žilina, Slovak Republic, jan.moravec@fstroj.uniza.sk
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings 26th International Conference on Metallurgy and Materials
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
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This contribution deals with an unconventional way of connection of steel pipes with a thin wall. In the introduction, it is described by one of the methods of electromagnetic forming tubes. The essence of the phenomenon is the induction. Through the coil will lose its accumulated energy, resulting in a repulsive power that causes strain times. Below are described the theoretical conditions of the process and the three possible transition phenomenon in electromagnetic circuits. For the following experiments have proved to be a suitable condition when it is dampened by the current at the limit aperiodicity. The experimental section, deals with the real structural solution of forming equipment for electromagnetic forming tubes. According to equation (1) as referred to in the text of the contribution was determined by the number of turns of the coil. With this coil will carry out experimental work, thus linking the two tubes. The images in the text of the contribution of the entire forming process illustrate. In experimental verification, it was found that an important point is the length of the associated parts. Of great importance, in particular, the thickness of the walls of the pipe. Decreasing the thickness of the walls is in direct dependence with increasing diameter of the hole, or the coil may have higher parameters, as shall be determined by calculation, which is but one of the important conditions for the success of the process after making experiments in the connection parts.

Keywords: Magnetism, sheet metal forming, tubes, samples

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