EVOLUTION MICROSTRUCTURALE ET MECANIQUE D’UN ACIER FAIBLEMENT ALLIE A FAIBLE POURCENTAGE EN CARBONE AVANT ET APRES EMBOUTISSAGE

Abstract

This study is realized into base metal, then after cold stamping process under 200 Bars pressure. The goal of this investigation is to follow the microstructural evolution and mechanical properties of industrial low carbon steel used in the gas store manufacture by SNS BAG Batna factory. In this work we saw the important effect of cold stamping process and more importance is given to the hardness parameter in order to show the structural change between base metal and cold stamping metal, scanning electronic microscopy observations shows more structural differences obvious by a grain magnification and by using Xray diffraction we confirm this structural changes. The obtain results let us concluded that cold stamping process affect the grain size of low carbon steel structural form and affect also their mechanical properties