Published 2002-12-27
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Abstract
Process of upsetting of cylinder by two cone-concave dies has been analyzed theoretically and experimentally in order to determine the influence of die geometry on main process parameters. Theoretical Slab method has been used to obtain stress distribution over the die /workpiece contact surface and forming load. Beside, UBET prediction of load has been made. Experiments have been performed using specimens out of steel. Theoretical analysis and UBET give well agreeable results to experimental results.