Uhlmann, EckartEckartUhlmannDomingos, David C.David C.Domingos2022-03-112022-03-112012https://publica.fraunhofer.de/handle/publica/3758942-s2.0-84911448850In this paper a process optimization was conducted to enable the achievement of smoothest surfaces in hardened tool steel using my-EDM technology. The trials were carried out using DoE-methods, aiming therefore the limitation on the number of experiments. The paper gives detailed information on the experimental procedure applied and on the achieved results, considering surface roughness and sub-surface damage as well as crack formation on the work piece surface.enDOE-methodsprocess optimizationhardened tool steel658670conference paper