Effect of Powder-Suspended Dielectric on the EDM Characteristics of Inconel 625
| العنوان: | Effect of Powder-Suspended Dielectric on the EDM Characteristics of Inconel 625 |
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| المؤلفون: | Gangadharudu Talla, C. K. Biswas, S. Gangopadhyay |
| المصدر: | Journal of Materials Engineering and Performance. 25:704-717 |
| بيانات النشر: | Springer Science and Business Media LLC, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | 0209 industrial biotechnology, Materials science, Mechanical Engineering, Metallurgy, 02 engineering and technology, Dielectric, Surface finish, 021001 nanoscience & nanotechnology, Inconel 625, Indentation hardness, Carbide, Superalloy, 020901 industrial engineering & automation, Thermal conductivity, Mechanics of Materials, General Materials Science, Graphite, 0210 nano-technology |
| الوصف: | The current work attempts to establish the criteria for powder material selection by investigating the influence of various powder-suspended dielectrics and machining parameters on various EDM characteristics of Inconel 625 (a nickel-based super alloy) which is nowadays regularly used in aerospace, chemical, and marine industries. The powders include aluminum (Al), graphite, and silicon (Si) that have significant variation in their thermo-physical characteristics. Results showed that powder properties like electrical conductivity, thermal conductivity, density, and hardness play a significant role in changing the machining performance and the quality of the machined surface. Among the three powders, highest material removal rate was observed for graphite powder due to its high electrical and thermal conductivities. Best surface finish and least radial overcut (ROC) were attained using Si powder. Maximum microhardness was found for Si due to its low thermal conductivity and high hardness. It is followed by graphite and aluminum powders. Addition of powder to the dielectric has increased the crater diameter due to expansion of plasma channel. Powder-mixed EDM (PMEDM) was also effective in lowering the density of surface cracks with least number of cracks obtained with graphite powder. X-ray diffraction analysis indicated possible formation of metal carbides along with grain growth phenomenon of Inconel 625 after PMEDM. |
| تدمد: | 1544-1024 1059-9495 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::efe884eb976b6d92b856e9ced47ffac3 https://doi.org/10.1007/s11665-015-1835-0 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........efe884eb976b6d92b856e9ced47ffac3 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15441024 10599495 |
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