The purpose of this thesis was to design and manufacture a bending tool for sheet metal used in the production of troughs for a belt elevator. As part of the thesis, two initial wooden dies with a 90$^°$ angle were produced. One with a smaller bending radius and the other with a radius approximately equal to the desired final radius of the bent sheet metal. The aim of these dies was to obtain preliminary experimental data to determine the elastic compensation factor K for S355JOWP steel. It was found that the bending radius significantly affects the value of the elastic compensation factor. For this reason, a second wooden die was made with a radius closer to the target final bending radius. Based on the measured angles and radii of bent samples, an average K-factor was determined (K$_α$ = 0,868). This data served as the basis for calculating the precise angle and radius of the final metal die. After manufacturing the metal die, additional measurements were performed on the bent samples, which showed minimal deviation in the K-factor (K$_{αp}$ = 0,870), confirming the accuracy ofthe initial experimental approach. This method allowed for reliable dimensioning of the final tool.
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