In this study, AISI4140 steel was used as a workpiece, a single hole copper tube with an outer diameter of 2 mm as the electrode, and Eurolub EDM ER100 environmentally friendly type erosion fluid with a high flash point and low viscosity as a dielectric liquid. The effects of TiO2 powder, which was added to ER100 at different concentration rates (no added, 5 g/l and 10 g/l), on electrical discharge machining (EDM) output performances (workpiece removal rate (WRR), electrode wear rate (EWR), relative wear (RW) and average surface roughness (Ra)) under sensitive (M1), medium (M2) and rough (M3) machining conditions were investigated. By the agency of 5 g/l TiO2 powder addition into the dielectric liquid, an average increase of 30.48% was achieved in terms of WRR in all three machining types. Again, with a 10 g/l TiO2 powder addition into the dielectric liquid, an average machining rate increase of 57.03% was achieved for all three machining types. Rotating the electrode had provided an average of 99.5% increase for M1 machining type on WRR values, while an average of 13.75% increase in M2 machining type and an average of 9.38% increase in M3 machining type. In experiments with both fixed and rotary electrodes with TiO2 powder addition, it has been concluded that electrode wear decreases for M1 and M2 machining types while only for M3 machining type with 10 gram TiO2 powder added dielectric, electrode wear increases. It was determined that RW values exhibit features just like EWR values. The 5 g/l TiO2 powder addition into the dielectric fluid had reduced Ra values by 5.27% for M1, 8% for M2 and 2.95% for M3. Also, 10 g/l TiO2 powder addition was found to reduce Ra values by 8.15% for M1, 15.07% for M2 and 6.21% for M3.
|Supporting Institution||Kırşehir Ahi Evran Üniversitesi|
|Thanks||Bu çalışma, Kırşehir Ahi Evran Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi’nce desteklenmiştir. Proje Numarası: MMF.A3.17.002. (“This work was supported by the Kırşehir Ahi Evran University Scientific Research Projects Coordination Unit. Project Number: MMF.A3.17.002”). Desteklerinden dolayı Bilimsel Araştırma Projeleri Koordinasyon Birimi’ne teşekkürlerimizi sunarız.|
: April 2, 2020
|APA||Erdem, O , Kılıç, S . (2020). TiO2 Katkılı Çevre Dostu Dielektrik Sıvının Elektro Erozyon Delik Delme Performanslarının Araştırılması . Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi , 7 (2) , 863-885 . DOI: 10.35193/bseufbd.713620|