| Yazarlar |
Prof. Dr. Levent URTEKİN
Kırşehir Ahi Evran Üniversitesi, Türkiye |
Hacı Bekir Özerkan
Gazi Üniversitesi, Türkiye |
|
Can Çoğun
Çankaya Üniversitesi, Türkiye |
|
Asım Genç
Gazi Üniversitesi, Türkiye |
|
Ziya Esen
Türkiye |
|
Fatih Bozkurt
Eskişehir Teknik Üniversitesi, Türkiye |
| Özet |
| The AZ91 magnesium alloy, used commonly as a biodegradable material in biomedical applications, is generally formed by conventional casting method (CCM) and high-pressure die casting method (HPDCM). The AZ91 alloys exhibit poor machinability with conventional chip removal methods since they degrade at elevated temperatures. In this study, the wire electric discharge machining (WEDM) was presented as a candidate process to machine the AZ91 alloy since no cutting stresses and plastic deformations were applied by the cutting tool to the part causing elevated temperatures. In this context, the WEDM machinability of the AZ91 alloy samples produced by cold chamber HPDCM and CCM at different process parameters, was experimentally investigated. The machining performance outputs (the machining current (I), the machining rate (MR), the average surface roughness (Ra), and surface topography) were found for the varying process parameters [pulse time (ts), pulse-off time (toff), dielectric flushing pressure (Pd), and wire speed (Vw)]. The present study revealed that the I and the MR were significantly dependent on the density, the porosity, and the micro structure of the samples, and the HPDCM samples gave the higher MR and the smoother surface than that of the CCM. |
| Anahtar Kelimeler |
| AZ91 alloy | machining current | machining rate | surface roughness | WEDM |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Journal of Materials Engineering and Performance |
| Dergi ISSN | 1059-9495 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q3 |
| Makale Dili | Türkçe |
| Basım Tarihi | 01-2021 |
| Cilt No | 30 |
| Sayı | 36 |
| Sayfalar | 7752 / 7761 |
| Doi Numarası | 10.1007/s11665-021-05939-2 |
| Makale Linki | http://dx.doi.org/10.1007/s11665-021-05939-2 |
| Atıf Sayıları | |
| SCOPUS | 18 |
| Google Scholar | 23 |
