How the Material Thickness Affects 0.08% Carbon Cold-Rolled Sheet Steel

Abstract

The authors hereof have studied how the thickness of 0.08% carbon cold-rolled sheet steel affects its properties. They experimented with tensioning such sheets and plotted the metal hardening curves. The paper presents comparative analysis of how the material thickness affects the coefficients approximating the hardening curves. A comparison of the hardening curves of control and annealed specimens is given. Experiments have identified the effects that the pre-accumulated plastic strain has on the material properties. It is revealed that lower thickness alters the force parameters of the process and affects the ultimate tensile strain. The paper formulates recommendations on using the estimates obtained by the software simulation of the deformation process. Hardening-curve coefficients approximation functions are proposed in order to predict how changing the thickness would affect the material properties.