ArticleMaterials (Basel, Switzerland)2022
Experimental Investigation and Optimization of Rough EDM of High-Thermal-Conductivity Tool Steel with a Thin-Walled Electrode.
Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Insight into Various Casting Material Selections in Rapid Investment Casting for Making EDM Electrodes.Micromachines · 2025Article
- Analyzing the Relationship between the Chemical Composition and the Surface Finish of Alnico Alloys in EDM.Materials (Basel, Switzerland) · 2023Article
- Finishing Additively Manufactured Ti6Al4V Alloy with Low-Energy Electrical Discharges.Materials (Basel, Switzerland) · 2023Article
- The Review of Current and Proposed Methods of Manufacturing Fir Tree Slots of Turbine Aero Engine Discs.Materials (Basel, Switzerland) · 2023Review
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Authors and funding
4 authors.
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Abstract
The industrial application of electrical discharge machining (EDM) for manufacturing injection molding, in many cases, requires forming depth cavities with high length-to-width ratios, which is quite challenging. During slot EDM with thin-walled electrodes, short-circuits and arcing discharges occur, as a result of low efficiency in removing debris and bubble gas from the gap. Furthermore, unstable discharges can cause increases in tool wear and shape deviation of the machined parts. In order to characterize the influence of the type of electrode material and EDM parameters on the deep slot machining of high-thermal-conductivity tool steel (HTCS), experimental studies were conducted. An analytical and experimental investigation is carried out on the influence of EDM parameters on discharge current and pulse-on-time on the tool wear (TW), surface roughness (Ra), slot width (S)-dimension of the cavity, and material removal rate (MRR). The analyses of the EDS spectrum of the electrode indicate the occurrence of the additional carbon layer on the electrode. Carbon deposition on the anode surface can provide an additional thermal barrier that reduces electrode wear in the case of the copper electrode but for graphite electrodes, uneven deposition of carbon on the electrode leads to unstable discharges and leads to increase tool wear. The response surface methodology (RSM) was used to build empirical models of the influence of the discharge current
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