Akademik Veri Yönetim Sistemi
7th International Conferences on / Engineering Sciences 2024- Ankara, Turkey, Ankara, Türkiye, 9 - 10 Şubat 2024, ss.26
Electrical discharge turning is a manufacturing
method that helps the machining of hard-to-cut and
complex-form cylindrical components. Recently, many
studies have been carried out on the electrical discharge
turning method. In this innovative study, the machinability
of cylindrical parts using the electric discharge turning
method was investigated experimentally. The workpiece
material was used AISI 4140 steel and tool material was
copper. Rotational speed (3 rpm, 6 rpm, 18 rpm) and
discharge current (3 A, 6A, 18 A) were selected variable
parameters in the experiments. Pulse on time and pulse off
time, polarity and flushing pressure were selected constat
machining parameters. Experiments were carried out
according to the Taguchi L9 orthogonal arrays. The main
purpose of this experiment is carried out the effect of the
machining parameters on surface roughness. According to
the research results, surface roughness was most effected by
discharge current. The effect of rotational speed on surface
roughness was limited compared to the discharge current.
The effect of the discharge current on increasing the surface
roughness was found to be 96.7%, and the effect of the
rotation speed was found to be 3.22%. The measured best
surface roughness value is 2.4 Ra and this value was
obtained at 3 rpm, 3 A parameters. The worst surface
roughness was measured 3.9 Ra and it was measured at 18
rpm, 18 A parameters. To conclude, it was obtained from
the experimental results that increasing the discharge
current and rotation speed affected the surface roughness
negatively.