Abstract
The article is focused on the study of welding elbows extrusion throught numerical simulations. The steel grade 11353 was used as a experimental material. The numerical simulations were carried out to optimize the technological scrap. The welded elbows 90° with external diameter and wall thickness 88,9 x 3,2 mm were processed using software product Deform 3D and were compared with physical simulations. Numerical and physical simulation showed high conformity. Moreover, the process of logaritmic and proportional deformation was also investigated by physical simulations. Finally, it was found, shortening of the expansion and calibration mandrel end led to the decreasing of technological scrap