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Определение параметров импульсов электроэрозионной обработки титана…
Инженерный журнал: наука и инновации
# 3·2017 11
Definition of titanium EDM pulse parameters
based on solution of the Stefan heat problem
© I.B. Stavitskiy, A.S. Shevchenko
Bauman Moscow State Technical University, Moscow, 105005, Russia
The article presents the results of theoretical studies of titanium machinability by electri-
cal discharge machining (EDM), based on the solution of the Stefan heat problem. We
propose a method for determining the parameters of titanium electrical discharge ma-
chining pulses and give recommendations for their intended purpose. Moreover, we de-
fine the minimum heat flux density and its duration, necessary to implement the titanium
EDM process. We established the dependence of the minimum values of heat flux pulse
duration at which the titanium electrical discharge machining is carried out, on the den-
sity of the heat flux. We determined the maximum values of pulse durations of heat fluxes
acting on the titanium to ensure the maximum material removal per pulse, and the effec-
tive durations of the heat fluxes, providing the maximum performance of titanium EDM
process, as appropriate for the heat flux density.
Keywords:
EDM, EDM pulse parameters, titanium machinability, heat flux density, elec-
trical pulses duration
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