Friction correction of flow stress-strain curve in the upsetting process

Abstract This article reports the effects of friction on flow stress-strain curve obtained from uniaxial compression test. Uniaxial test was done at deformation temperature range 575 °C–650 °C and strain rates 0.001 s −1 , 0.01 0.1 0.5 to a 0.6 using Gleeble ® 3500 thermo-mechanical simulator. The parameter calculated by analytical equation literature. study results. results showed variation between measured corrected curves. stress increased with an increase in strain. result shows resulting contact die workpiece during deformation. has shown that equations used for hot are applicable analysing warm