Electrical Discharge Machining for Complex Cavity with a Porous Electrode
| Autor: | Ping Xueliang, Kong Linglei, Li Qi, Zhao Wansheng, Jiang Yi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0209 industrial biotechnology
Materials science Metallurgy Sintering chemistry.chemical_element 02 engineering and technology Copper 020303 mechanical engineering & transports 020901 industrial engineering & automation Electrical discharge machining 0203 mechanical engineering Machining Porous electrode chemistry Electrode General Earth and Planetary Sciences Graphite Porosity General Environmental Science |
| Zdroj: | Procedia CIRP. 42:618-622 |
| ISSN: | 2212-8271 |
| DOI: | 10.1016/j.procir.2016.02.258 |
| Popis: | In die-sinking EDM processing of deep complex cavities, gap status is easy to be deteriorated because of the hardness of debris evacuation. To address this problem, a kind of porous material was applied as the tool electrode. The porous material was prepared by the way of high-temperature sintering of copper particles. With a proper sintering parameters setting, a porous electrode, in which copper particles connect with each other tightly, is able to be fabricated according to a graphite mould. The porous electrode also has a high porosity such that liquid flow channels are formed and the distributed multi-hole inner-flushing can be achieved. A complex porous electrode for the machining of a deep, complex, and semi-enclosed cavity was prepared, and the EDM experiment was carried out. The experimental results showed that the roughing machining efficiency was raised significantly, which therefore revealed a strong capability of porous electrode in complex cavity machining. |
| Databáze: | OpenAIRE |
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