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The paper deal with the unconventional method of creating cavities in samples. There is also described the principle of system for creating experimental samples. In other parts is work focus on free-core forming of cavities in lead samples. Based on the idea of the experimental device was this constructed and the research was carried out. An important part of the experimental device is the electrical circuit, where a magnetic field (impulse) is created, which forms the experimental samples. With free-core forming, lead samples of square shape with dimensions of 35x35 mm and thickness of 7 mm were formed. The results obtained in the experiments show that such a molding method is suitable for several reasons. The first is the speed of the process. In this case it is 0.03 s. The second advantage is in terms of ease of automation using this type of forming. Quite a simple solution with application of magnetic field ensures accurate, fast and high-quality cavity formation in metal materials. The results achieved confirm the suitability of the solution for application in the manufacturing process. Also, the reproducibility of the results is at a high level. Working with a free core is simple and reliable. The described solution complements and extends the sphere of forming
Keywords: Forming, cavity, solenoid, free core, unconventional methods© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.