Definition of titanium EDM pulse parameters based on solution of the Stefan heat problem
Authors: Stavitskiy I.B., Shevchenko A.S.
Published in issue: #3(63)/2017
DOI: 10.18698/2308-6033-2017-3-1599
Category: Mechanical Engineering and Machine Science | Chapter: Technology and Equipment of Mechanical and Physical Processing
The article presents the results of theoretical studies of titanium machinability by electrical discharge machining (EDM), based on the solution of the Stefan heat problem. We propose a method for determining the parameters of titanium electrical discharge machining pulses and give recommendations for their intended purpose. Moreover, we define 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 density 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 effective durations of the heat fluxes, providing the maximum performance of titanium EDM process, as appropriate for the heat flux density.
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