Izvorni znanstveni članak

https://doi.org/10.21278/TOF.492071524

Deep Drawing of Sphere Using Explosive Forming

Stipo Buljan ; Federal Ministry of Energy, Mining and Industry, Mostar, Bosnia and Herzegovina
Darko Šunjić orcid.org/0009-0009-4541-4315 ; University of Mostar, Faculty of Mechanical Engineering, Computing and Electrical Engineering, Mostar, Bosnia and Herzegovina *
Muhamed Sućeska ; Faculty of Mining, Geology and Petroleum Engineering, Zagreb, Croatia
Safet Isić ; University of “Džemal Bijedić” Mostar, Faculty of Mechanical Engineering, Mostar, Bosnia and Herzegovina

* Dopisni autor.

Sažetak

Explosive energy can be used in metal forming processes, e.g. for bulk forming, sheet forming and for other processes. This paper presents the experimental research and numerical modelling of the process of sphere deformation by explosive forming. The assembly for forming a sphere with a diameter of 210 mm was welded from flat segments and annealed after welding. The material of the sphere was steel St12 according to DIN 1629/3. The thickness of the sheet metal was 2.0 mm. The sphere was modelled in the SolidWorks program and 3D-printed with the polylactic acid (PLA) material. The Poladyn 31ECO explosive was used for the experimental investigation into the process of deep drawing of the sphere by explosion, while the LS-DYNA hydrodynamic software was used for simulation. The pressure in the sphere was measured with a pair of copper crushers. It is shown that the simulation satisfactorily reproduces the experimentally measured pressure.

Ključne riječi

explosive forming; deep drawing of sphere; deformation; pressure; copper crusher; simulation

Hrčak ID:

331237

URI

https://hrcak.srce.hr/331237

Datum izdavanja:

22.5.2025.

Posjeta: 0 *