TY - JOUR N2 - The article presents an analysis of stresses in the current tool system of the die during the implementation of the third forging operation of the screw M12 class 10.9 with cylinder head and hexagonal socket. It was assumed that the level of negative cracking due to stress can be reduced by using a mounting interference between the die and the tube blank. Due to the design of the tool system value of the die, the interference value cannot be too large. Therefore, an analysis of the influence of the interference between the die and the tube blank in a die tool system on the value and distribution of stresses in the individual components. An analysis of the assembly stresses and the stresses occurring during the process of deformation of the shaped head of the screw was done. The calculations were performed using a commercial software package MARC / Mentat. L1 - http://www.czasopisma.pan.pl/Content/113603/PDF/AMM-2019-4-34-Nowotynska.pdf L2 - http://www.czasopisma.pan.pl/Content/113603 PY - 2019 IS - No 4 EP - 1478 DO - 10.24425/amm.2019.130115 KW - forging KW - modelling and simulation KW - bolts KW - stress analysis A1 - NowotyƄska, I. A1 - Kut, S. A1 - Osetek, M. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 64 DA - 2019.12.12 T1 - An Impact of Assembly Interference on Stresses in the Die Tool System During Bolt Forging SP - 1471 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/113603 T2 - Archives of Metallurgy and Materials ER -