NUMERICAL ANALYSIS OF THE CROSS-WEDGE ROLLING PROCESS BY MEANS OF THREE TOOLS OF STEPPED SHAFTS FROM ALUMINUM ALLOY 7075

摘要

This paper presents results of numerical calculations for the rolling process by means of three tools of stepped shafts from aluminum alloy 7075. Forming with the usage of tools with three different wedge spreading angles underwent analysis. In the paper, the obtained distributions of stresses, strains and Cockcroft-Latham damage criterion were given. Moreover, the influence of the wedge spreading angle on shape faults presence in the obtained product was determined. At the same time, the force parameters, which play a crucial role in the designed experiment, were analyzed.