Analysis of surface layers of hot – forging dies of SKD61 steel fabricated by die – sinking electrical discharge machining using copper and titanium electrodes

This is accepted according to practical experience and the lack of scientific basis because of limited research on the surface layer quality of the products after EDM and the study is focused on the evaluation of the product quality in the final processing. This study is aimed at the investigation of performance and structure of the surface layer in hot-forging die following die-sinking EDM.