Suitability of electrical discharge machining debris particles for usage as a powder for selective laser melting: an explorative study
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In this study, the properties of debris particles originating from Electrical Discharge Machining (EDM) processes are investigated. The question is addressed whether these particles are suitable to serve as a raw material for Selective Laser Melting (SLM). To this end, different EDM parameter sets were used to manufacture particles with different size distributions. After de-oiling, the resulting powders were examined by dynamic image analysis. Results show that EDM can produce particles with high sphericity. Moreover, particle size distribution can be controlled by EDM parameters. In summary, EDM-manufactured particles seem to be a promising source of powders for the SLM process.
KeywordsElectrical discharge machining EDM Debris particles Powder Selective laser melting SLM
The authors would like to express their gratitude to Mr. Benjamin Sendler and Mr. Markus Kummerlaender, employees of Georg Fischer Machining Solutions GmbH, for the opportunity to conduct EDM experiments and their professional support. In addition, the authors want to thank Mr. Jonas Koch, Rosswag Engineering, for the opportunity to use the powder analytic equipment and for sharing his expertise. Finally, we thank Mrs. Gaby Loveday, Mr. Simon Kött, Dr. Alexander Matz, Mr. Pierre Kubelka, and Ms. Johanna Frost for their support.
Compliance with ethical standards
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
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