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Published on: June 2, 2017
Investigation of Plasma-Electrolytic Processing on EDMed Austenitic Steels
Timur Rizovich Ablyaz1, Evgeny Sergeevich Shlykov1, Karim Ravilevich Muratov1
1Department of Mechanical Engineering, Perm National Research Polytechnic University, Perm 614000, Russia.
Abstract:
This study investigates the effect of electrolytic plasma processing on the degree of defective layer removal from a damaged layer obtained after manufacturing operations. Electrical discharge machining (EDM) is widely accepted in modern industries for product development. However, these products may have undesirable surface defects that may require secondary operations. This work aims to study the die-sinking EDM of steel components followed by the application of plasma electrolytic polishing (PeP) to enhance the surface properties. The results showed that the decrease in the roughness of the EDMed part after PeP was 80.97%. The combined process of EDM and subsequent PeP makes it possible to obtain the desired surface finish and mechanical properties. In the case of finishing EDM processing and turning, followed by PeP processing, the fatigue life is enhanced without failure up to 109 cycles. However, the application of this combined method (EDM + PeP) requires further research to ensure consistent removal of the unwanted defective layer.
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