Influence of Microstructural Characteristics on Electrical Discharge Wire Cutting Condition of A390 Al-Si Hypereutectic Alloy. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 9, Volume 31, Issue 2, June 2006, Page 32-40 PDF (410.96 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2020.129670 | ||||
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| Authors | ||||
| Hossam El-Din Mohamed Zakaria* ; Ahmed Mohamed Gafaar; Sameh Shawky Habib; Tamer Samir Mahmoud | ||||
| Mechanical Engineering Department, Shoubra Faculty of Engineering, Banha University | ||||
| Abstract | ||||
| The paper presents the results of an experimental investigation on the machinability of A390 hypereutectic Al-Si alloy using wire electrical discharge machining (WEDM). The effect of the modification and grain refinement treatments on the microstructure and also on the machining conditions has been evaluated. The process parameters taken into consideration are the average gap voltage (A;), surface finish type (SF), pulse frequency (F), cutting speed (CS), material removal rate (MRR) and finally the kerf size (KS). The results show that the modification process of 4390 alloy has a significant effect on the electrical discharge wire cutting (EDWC) parameters. It has a great influence on the improvement of MRR, CS, and KS. The modified alloy exhibits better machinability conditions when compared with both the as-cast and the grain refined A390 alloys. The grain refined A390 alloy shows lower machinability conditions when compared with the as-cast A390 alloy | ||||
| Keywords | ||||
| Wire electrical discharge machining (WEDM); Al-Si hypereutectic alloys | ||||
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